Like most people, you have probably lost count of the number of perfect-looking shoes you have thrown away simply because the rubber soles (橡胶鞋底) are broken. In addition to the expense, it is also harmful to our environment. Now, thanks to a revolutionary self-healing 3-D printed rubber material, broken shoe soles may be a thing of the past.

The magical polymer (聚合物) is developed by the researchers at the University of Southern California’s (USC) and the University of Connecticut (UConn) . The team, led by USC Assistant Professor Qiming Wang, created it through a process called photopolymerization, which uses light to solidify the liquid used to create 3-D printed plastic. The researchers found that adding the right amount of oxidant (氧化剂) to the liquid allowed the 3-D polymer to heal (愈合) without slowing down the hardening process.

“When we gradually increase the oxidant, the self - healing behavior becomes stronger, but the photopolymerization behavior becomes weaker,” explained Wang. “There is competition between these two behaviors.”

The team, who published the findings in the journal NPG Asia Materials on February 1st,2019, state that the repair time can be reduced by increasing the room temperature. “If you just put a broken shoe on a bench at room temperature, the rubber will heal itself in six to eight hours,” Wang said. “If you apply heat at maybe 60℃, that expedites the healing process to about two hours.”

Given the material s huge potential, it is not surprising to hear that Wang and his team have been approached by several shoe-making companies eager to be the first to use the technology, which is still in the early stages. Once perfected, the scientists also hope to apply the technique to hard plastics that can be used to create self-healing toys, electronics, vehicle parts, and, if Wang has his way, even tires.

1.How do the researchers make 3-D printed plastic self- heal?

A.By changing the amount of light used.

B.By raising the temperature at which it is used.

C.By increasing the hardening speed of the liquid.

D.By adding the proper amount of oxidant to the liquid.

2.What can be inferred from the text?

A.The creation of 3-D printed plastic doesn’t need light.

B.The surrounding temperature determines the speed of healing.

C.Many shoe making companies got the right to use the technology.

D.Throwing away broken shoe soles has been a thing of the past.

3.What does the underlined word “expedites” mean?

A.Strengthens. B.Delays. C.Accelerates. D.Worsens.

4.Which of the following can be the best title of the text?

A.Self - healing shoes may be in our future.

B.3-D printing technology makes a difference.

C.Self - healing technology will serve many fields.

D.A revolution of rubber soles has changed our life.

    A few years ago, a doctor gave a wrong prescription to a 9-year-old boy because he had accidentally clicked the next medicine listed in the drop-down menu. Unfortunately, the boy died.

Dr. Gidi Stein heard the story and felt forced to do something. “It was like killing someone with a spelling error. He just clicked on the wrong button…Stein said. “One would have thought there’d be some kind of spell-checker to prevent these terrible things from happening. But apparently this is not the case.”

Several things were immediately obvious to the 54-year-old Stein, who had previously studied computer science. “If you look at this problem from a bird’s eye view, there were so many places down the line where this decision could have been stopped-from the physician to the pharmacy (药房) even to the mother. All of them had all the relevant information to have the judgment that this was just the wrong drug for the wrong patient. For Stein, it represented a systematic failure.

Stein compared this with credit cards. “If you use your credit card in the daily routine over time, a pattern emerges of how we use our cards : the grocery store, the gas station in our local town. If your credit card would appear tomorrow in Zimbabwe, it would be unusual. The credit card company would call you and say, “‘Hey, was that you?’”

But nothing like that existed in the field of prescription drugs. So Stein set up a company called MedAware. He came up with a machine learning outliner detection system. In other words, he trained the computers to realize if a doctor accidentally prescribed the wrong medicine.

The system is already used in hospitals and doctor5 s offices. To date, MedAware has used their technology to help nearly six million patients in the United States and Israel.

1.What caused the boy’s death?

A.The doctor’s carelessness. B.The doctor’s poor medical skill.

C.The failure of the computer. D.The incomplete health care system.

2.How did Dr. Gidi Stein react to the boy’s death?

A.He was annoyed and put the blame on the doctor only.

B.He was regretful and tried to prevent similar accidents happening.

C.He was embarrassed and mistook it as a systematic failure.

D.He was confused and detected the mistakes in prescriptions himself.

3.What does Stein want to tell us by mentioning credit cards?

A.Credit cards are available for doctors’ prescriptions.

B.Instructions in using credit cards are offered to users.

C.The boy might have been saved with the technology like credit cards.

D.MedAware’s technology will benefit the patients in Zimbabwe.

4.It can be concluded from the text that ________.

A.MedAware’s technology helps doctors choose right medicine

B.MedAware’s technology checks the prescriptions doctors make out

C.Medical industry worldwide has enjoyed MedAware’s technology

D.The boy? s mother was not to blame for his death during the accident

    Kyle Cassidy and three other members of the Annenberg Running Group were stretching on the grounds of the University of Pennsylvania, waiting for a few latecomers. The Penn colleagues and other community members meet three days a week for a roughly 30-minute jog and an occasional lecture. That's right― during some runs, one of them delivers a talk. Topics range from the brain to Bitcoin.

But on this day last January, it would not be their normal run. The first clue that something was off was the man who sprinted past them. "Running at an amazing pace," Cassidy told Runner's World admiringly. Cassidy discovered why the sprinter was so fleet of foot when another man ran by, yelling, “Help! He took my phone and laptop!"

At that, the group did what running clubs do: They ran, trailing the suspect down the streets of Philadelphia until he ducked into a construction site. The runners split up. Cassidy ran around to the far side of the site to cut the thief off while the others wandered the neighborhood hoping he had dumped the loot （赃物）in a backyard.

No luck. So they decided to ask residents whether they'd seen the guy. When they knocked on the door of one row house, they were in for a surprise. Unknown to them, he had already emerged from the construction site—and was hiding behind a bush by that very house. As the owner opened the door, the suspect darted out from behind the bush ... and right into the arms of campus police, who'd joined the chase shortly behind the runners.

The members of this running group are not hard-core athletes. But they do understand the benefit of a little exercise. ''Running is typically a useless sport where you turn fat cells into heat," Cassidy told The Philadelphia Inquirer. "But occasionally it can be useful, and here was one of those opportunities."

1.Why do the group members gather together?

A.To do some stretching. B.To have a regular run.

C.To deliver a lecture. D.To cover some topics.

2.What does the underlined word "sprinted" in Paragraph 2 probably mean?

A.Dashed. B.Pushed.

C.Jumped. D.Escaped.

3.We can infer that the success of the chase is mainly due to____ .

A.the assistance of the runners B.the owner of the row house

C.the campus police on patrol D.the joint efforts of the people

4.Which of the following best describes Cassidy?

A.Athletic and generous. B.Courageous and ambitious.

C.Helpful and humorous. D.Thoughtful and demanding.

    Occasions like anniversaries, weddings and reunions call for special event venues （场地）.The following places may have a way out. There's no need to spend money creating atmosphere at special event venues. It's built right in!

Hard Rock Cafe Anchorage

415 E. STREET, ANCHORAGE, ALASKA 99501

Events, like great music are born of inspiration. Featuring a 13,600-square-foot facility that will seat 275 guests with private event space, we pride ourselves on delivering an exceptional experience with a rock and roll twist for each of our guests.

Business Expo Center

1960 S. ANAHEIM WAY, ANAHEIM, CALIFORNIA 92805

The Business Expo Center is Orange County's premier event venue in Anaheim, California. Our flexible 36,000-square-foot expo center is home to space for conferences, trade shows and celebrations. We pride ourselves on providing a memorable experience with excellent flexibility, services, and cost savings. We won't charge customers for on-site parking and provide high-speed Wi-Fi.

Automobile Driving Museum

610 LAIRPORT STREET, EL SEGUNDO, CALIFORNIA 90245

Centrally located in the South Bay beach community of El Segundo, California, the ADM offers a wonderful venue for private parties and corporate events. Conveniently located 5 minutes south of LAX, right off the 405 and 105 Freeways, the 610 Lairport space has a vintage feel surrounded by our primary automobile collection. We offer several different venues inside and outside our facility for diverse events. To better our service, reservations are needed.

Yamashiro Hollywood

1999 N. SYCAMORE AVE., LOS ANGELES, CALIFORNIA 90068

Yamashiro Hollywood is a restaurant and therefore, all food and beverages must be handled in house. However, guests are allowed to bring in outside wine and champagne for a corkage fee.

1.What can you do in Business Expo Center?

A.Enjoy free parking.

B.Bring in outside wine.

C.Experience a rock and roll twist.

D.See some automobile collections.

2.Which venue do you need to book in advance?

A.Business Expo Center.

B.Yamashiro Hollywood.

C.Hard Rock Cafe Anchorage.

D.Automobile Driving Museum.

3.What do the four venues have in common?

A.They offer optional places.

B.They are open to special events.

C.They are located in the same state.

D.They enjoy convenient transportation.

假定你是李华，你的留学生朋友Otis对你校将要举行的中文歌曲大赛很感兴趣，但是他不知道是否该参加，因此给你写了一封邮件。请你回复邮件，内容包括：

1. 建议参加；

2. 给出理由；

3. 表达期望。

注意：1. 词数100左右；

2. 可以适当增加细节，以使行文连贯。

_____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

假定英语课上老师要求同桌之问交换修改作文，请你修改你同桌写的以下作文。文中共有 10处语言错误，每句中最多有两处。每处错误仅涉及一个单词的增加、删除或修改。

增加：在缺词处加一个漏字符号（∧），并在其下面写出该加的词。

删除：把多余的词用斜线（\）划掉。

修改：在错的词下划一横线，并在该词下面写出修改后的词。

注意：1. 每处错误及其修改均仅限一词；

2. 只允许修改10处，多者（从第11处起）不计分。

The aim of group work is to produce much more better presentations. This is achieve through the combined talents of group members. One difficulty with group work is that you can’t worked as quickly as you can by yourself. Patience, communication skills and commitment is all required to make most of the contributions of group members. The quality of your relationship with the other group members is the key of the success of the group. Therefore, it is important to spending time getting to know your colleague. Besides, try to agree with the other group members on a common purpose. If you don’t understand something about the task, say it immediate and discuss it with them until both of the group members reach an agreement.

阅读下面短文，在空白处填入1个适当的单词或括号内单词的正确形式。

The word “qípáo” did not appear until the 20th century and is one of a number of 1. (word) used to refer to clothing.

It was in Shanghai 2. it is still well-known that it took shape. Fashion features(时尚的特征) in the Chinese press in the 1920s showed a mix of elements(元素) in 3.(variety) designs before the familiar dress appeared. The familiar, figure-hugging dress with its mandarin collar and long splits finally appeared in the late 1920s and women at that time were especially 4.(delight) at its appearance. Its status 5.(strengthen) when the new government recognized it as formal dress in 1928.

Over time, the dress has proved to have controversial position in the Chinese culture. Historically it was more likely to be worn by a call girl 6. by an activist. In China today it is often worn by the bride, but it is perhaps most 7.(common) used as a uniform for female staff in stores and big hotels.

Supporters of it are calling for the 8.(necessary) of understanding its history before putting it on. And there is no doubt 9. its complex design origins and historical social status are worth 10.(explore).

    One morning, someone broke into Shawn Marceau’s truck and made off with a laptop and an American flag.

But this wasn’t _______ any flag. Its original _______ was Marceau’s son, 22-year-old soldier Joe Jackson. The flag had been signed by each of Jackson’s team in the army and had hung over his bed for his entire tour of _______in Afghanistan. However, Jackson was _______ in 2011. Marceau frequently took the flag _______ his son. Marceau reached out to friends and family, _______ them to search for the flag wherever they could. But without _______.

The _______ father turned to Facebook. “I would appreciate it if all my friends could share this _______. This American flag was __________ out of my truck,” he wrote, including a photo. Within 3 clays, there were around 40, 000 reposts. __________, the flag was still nowhere to be found.

Soon, there were other flags. A firefighter __________ one to Marceau signed by dozens of his colleagues. A Special Forces major also posted a flag he’d taken along around the world.

Marceau, a retired soldier himself __________ these gifts while __________ to pray for the return of Jackson’s flag.

One Tuesday, Marceau __________ his son’s grave(坟墓) as usual. When he got there, he saw a flag. Marceau didn’t let himself get too __________. People had gifted him so many flags that he figured this was just another one. But when he got __________, he noticed the __________. This was his son’s flag.

No one has __________ to say he or she returned it. Did the thief bring it back? Or someone good to __________? “For me, it’s a miracle(奇迹),” Marceau says.

1.A.yet B.just C.also D.already

2.A.designer B.owner C.buyer D.supporter

3.A.duty B.dream C.adventure D.search

4.A.killed B.hurt C.arrested D.betrayed

5.A.in celebration of B.in return for C.in exchange for D.in memory of

6.A.advising B.forcing C.asking D.ordering

7.A.accident B.chance C.comment D.luck

8.A.easygoing B.selfish C.heartbroken D.generous

9.A.letter B.note C.agenda D.routine

10.A.replaced B.pushed C.stolen D.hidden

11.A.Unfortunately B.Gradually C.Surprisingly D.Hopefully

12.A.made B.carried C.sold D.sent

13.A.treasured B.donated C.reformed D.rejected

14.A.managing B.continuing C.starting D.pretending

15.A.decorated B.built C.visited D.buried

16.A.interested B.embarrassed C.puzzled D.excited

17.A.faster B.higher C.closer D.stronger

18.A.gifts B.signatures C.posts D.photos

19.A.sped up B.showed off C.dropped out D.stepped forward

20.A.help B.care C.change D.serve

    Yoga is an age-old practice that stretches (伸展) the body and calms the mind. By performing a series of poses(体式), called asanas, you will feel more relaxed. This results in lower blood pressure, a decrease in stress and healthy muscles. 1. With poses ranging from simple to challenging, yoga gives your mind something to think about. So get started by trying simple poses.

Mountain Pose

Stand barefoot on a no-slip mat and put your feet side-by-side, 2. Stretch your leg muscles and feel your knee caps lift. Practice holding your head and neck in a straight line. Relax your shoulders. Breathe in and out, and focus on your breathing.

Triangle Pose

Begin in Mountain Pose. As you breathe out, move your left foot about three or four feet to the left side. Lift your arms until they’re parallel with the floor. Stretch your fingertips outward. Then turn your left foot 90 degrees to the left, and turn your right foot about 45 degrees toward your left. 3.

Cat to Cow Pose

This is a great way to loosen a tight back, neck or shoulders. Begin with your palms(手掌) under your shoulders and your knees under your hips(臀部). 4. Then drop the head and neck toward your mat, pull your stomach muscles tight, and round your back up toward the ceiling. Hold that pose and breathe in and out.

5. Gradually add more asanas to your practice. Before long, you’ll notice a positive change in your body and your mind.

A. Continue moving back and forth.

B. It can be hard to balance in this way.

C. Perform these poses every day, if you can.

D. Hold your back and neck in a straight line.

E. Adjust your feet till they feel good against the mat.

F. But beyond its health benefit yoga brings a lot of fun!

G. The heels of both feet should be in line underneath your arms.

    About 4 million children worldwide develop asthma(哮喘) each year because of nitrogen dioxide(NO2 , 二氧化氮) air pollution, according to a study published by researchers at the George Washington University. The study estimates(估算) that 64 percent of these new cases of asthma occur in urban areas.

“The study is the first to quantify the worldwide burden of new pediatric(儿科的) asthma cases linked to traffic-related nitrogen dioxide by using a method that takes into account high exposure to this pollutant that occurs near busy roads, ” said Susan C. Anenberg, PhD, the senior author of the study.

“Our findings suggest that millions of new cases of pediatric asthma could be prevented in cities around the world by reducing air pollution,” said Anenberg. “Improving access to cleaner forms of transportation, like electrified public transport, cycling and walking, would not only bring down NO2 levels, but would also improve physical fitness, and cut greenhouse gas emissions(排放). ”

Asthma is a disease that makes it hard to breathe when the lung’s airways are swollen. An estimated 235 million people worldwide at present have asthma, which can cause life-threatening attacks.

The World Health Organization calls air pollution “a major environmental risk to health” and has offered Air Quality Guidelines for NO2 and other air pollutants. The researchers estimate that most children lived in areas below the NO2, guideline. They also found that about 92 percent of the new pediatric asthma cases that were caused by NO2 occurred in areas that already meet the WHO guideline.

“That finding suggests that the WHO guideline for NO2 may need to be re-evaluated to make sure it is conducive to the protection of children’s health,” said Pattanun Achakulwisut, PhD, lead author of the paper.

Additional research must be done to more persuasively identify what is leading to asthma within complex traffic emissions. This effort will help to improve the estimates of new asthma cases tied to traffic emissions.

1.What can we learn from Susan C. Anenberg?

A.Old forms of getting around need to be replaced.

B.Few cases of pediatric asthma occur in urban areas.

C.Pediatric asthma increases because of unclean energy.

D.Greener transportation helps to reduce asthma cases.

2.What can we infer about the Air Quality Guidelines for NO2?

A.It proved persuasive. B.It seemed unreasonable.

C.It would be abandoned. D.It turned out instructive.

3.What does the underlined word “conducive” in paragraph 6 probably mean?

A.Beneficial. B.Open.

C.Equal. D.Familiar.

4.What is the main idea of the text?

A.Asthma has put children’s life in unavoidable danger.

B.WHO should improve Air Quality Guidelines for NO2.

C.NO2 air pollution causes children to suffer from asthma.

D.Air pollution is a serious worldwide problem nowadays.

    The crocodile(鳄鱼) is an amazing animal. Why are they amazing? Crocodiles are experts at survival. Scientists say they first appeared 200 million years ago and have lived longer than the dinosaurs by some 65 million years. One reason why they are such good survivors is that they can go for a very long time without eating. And they are expert hunters! They use their strong jaws to bite their prey(猎物) and then they swallow their food whole. Another amazing fact about crocodiles is: When they lose a tooth, they grow one right back. A crocodile can go through 8, 000 teeth in one lifetime!

While these facts arc interesting, they really do not help to explain today’s expression: crocodile tears. Simply put, crocodile tears are fake sadness. You pretend to cry and feel bad for something when in fact you could not care less. A great word to describe crocodile tears is insincere.

The expression “crocodile tears” comes from an old story that crocodiles would cry tears as a fake show of guilt or sorrow to trick their prey. The prey would come closer and then become dinner. We know now that the story is not true. Scientists explain that crocodiles do produce tears. That is because while eating, they swallow too much air, which gets in touch with lachrymal glands (glands that produce tears) and forces tears to flow. But they’re not actually crying. Crying is purely emotional(情绪的) and is reserved for us humans.

When you use it, take some advice. You do not have to have actual tears flowing down your face to have “crocodile tears”. Sometimes, crocodile tears are worse than insincere. Those are the times when you are showing sadness but actually in your heart« you are quite happy about the situation.

1.How does the author mainly show that crocodiles are amazing?

A.By telling stories. B.By giving examples.

C.By conducting experiments. D.By making comparisons.

2.“Crocodile tears” is often said to a person who         .

A.has some insincere friends B.faces sorrowful situations

C.shows unreal sadness D.cares little about others

3.Why does a crocodile produce tears according to scientists?

A.The flow of its tears makes it appealing.

B.It pretends to be guilty to trick its prey.

C.It wants to show its emotional feelings.

D.The way it eats forces its tears to flow.

4.What is the best title for the text?

A.An Expression—“Crocodile Tears” B.What Crocodiles Actually Cry for

C.Unknown Facts About Crocodiles D.How “Crocodile Tears” Came Out

    Artist Zsudayka Nzinga Terrell clearly remembers the day in high school when the teacher asked her to write about her family history. She saw that it was impossible to answer the questions “Who am I?” and “Where did I come from?”.

Nzinga Terrell told her memories. “The white kids were able to get up and talk about hundreds of years of their background. And there was me and one other black kid in the class who could go back to a plantation(种植园) in Virginia and that’s it.” She talked about her family history. “My people were brought here on the bottom of a ship. And they were sold and they were renamed.”

Today, she and her husband, artist James Terrell explore their family history in their work. Their new exhibit of paintings is called Born at the Bottom of the Ship. The show recently opened at the Center for the Arts in Manassas, Virginia.

Over the generations, Africans have become African Americans with a new culture, and Nzinga Terrell includes different parts of that story in her art. There are things that look like African cloth and design and things that make you think of American culture and clothing.

James Terrell’s style is more abstract. His painting Mami Wata shows a woman rising from the ocean. Terrell explains the painting, “ Mami Wata is a goddess of the sea. There’s no light going through; there’s not a lot of color being seen, as opposed to the other ones. So, it’s just showing the time of the slaves being brought to America. ”

But the artist says he also likes to play with color. Growing up, James Terrell attended a church with colored glass in many windows. Because of that experience, he learned how light goes through the windows. He makes lines in his painting that look like the lines between pieces of colored glass in the church windows.

Visitors seeing the Terrells’ works say they see themselves and their family members in the works.

1.How did high school Nzinga Terrell find talking about her origin and identify?

A.Possible. B.Exciting.

C.Annoying. D.Difficult.

2.What can we know about Nzinga Terrell’s people?

A.They had to use the same names forever.

B.They led a life with no freedom at all.

C.They took up their jobs mostly aboard.

D.They were eager to get rid of poverty.

3.What’s the painting Mami Wata like?

A.It’s typical of native American style.

B.It’s abstract with rich and bright colors.

C.It reflects a dark time of the black slaves.

D.It describes a church James once attended.

4.What is paragraph 6 mainly about?

A.The story about James Terrells unique painting style.

B.The way James Terrell makes use of different kinds of colors.

C.The reason why James Terrell prefers to go to church to paint.

D.The influence of James Terrell’s church experience on his painting.

    US News & World Report recently ranked the best countries for adventure, based on each country’s scores across four aspefcts: fun, friendliness, climate and scenery. Here are four of them.

Spain

With its sky-high scores in friendliness and fun, adventure in Spain is always as close as the nearest street. The most important thing for you is to identify what kind of adventure suits you best: if you love winter, head for Madrid, while warm-weather lovers are better off in beachfront Barcelona.

Thailand

Combining high scores in both scenery and fun, Thailand attracts a mix of people that make for an adventurous atmosphere. This can best be experienced on the island of Koh Phangan. Visitors looking for more traditional exciting adventure should head to Chiang Mai to try whitewater rafting(漂流), or attempt waterfall abseiling(沿绳索滑下) at Doi Inthanon National Park.

Greece

High scores in scenery and climate make Greece a perfect destination for adventurers. The water for swimming here is the best of the best. Sailing and kayaking around the Cyclades are popular water sports while land-living visitors to the islands have abundant hiking options. Host to the first Olympics, Athens has long held sporting events at the Panathenaic Stadium. Visitors are welcome to join the morning jog in the stadium from 7: 30 am to 9: 00 am as a warm-up for the day’s adventures.

Italy

While Italy might be best known for its food, art and architecture, the country has a more actively adventurous side, too. In Sicily, you can swim in the deepest blue sea and after a few hours lie on the top of the highest active volcano in Europe The ever-changing landscape(风景) also provides a chance for different types of adventures.

1.Where are visitors advised to go if they love worm weather and beaches?

A.Madrid. B.Barcelona.

C.Sicily. D.Chiang Mai.

2.What can visitors do in Thailand?

A.Meet with the friendliest locals. B.Jog freely under huge waterfalls,

C.Enjoy adventurous water sports. D.Appreciate its world-famous art.

3.What do the last two countries have in common?

A.They are attractive for swimming lovers.

B.They allow visitors to sail around islands.

C.They arc best known for their unique food.

D.They have Europe’s highest active volcanoes.

假定你是李华，你校学生会将举办70周年国庆英文演讲比赛，将邀请英文外教Peter担任评委，请你写封 邀请函，内容包括：

1. 活动主题“我爱中国”

2. 活动时间和地点

3. 比赛议程

注意：1.词数100左右；

2.可适当增加细节，以使行文连贯；

3.邮件开头和结尾已写好，不包含在字数内。

Dear Peter,

_____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

Yours,

Li Hua

假定英语课上老师要求同桌之间交换修改作文，请你修改你同桌写的以下作文。文中共有10处语言错误， 每句中最多有两处。每处错误仅涉及一个单词的增加、删除或修改。

增加：在缺词处加一个漏字符号(A),并在其下面写出该加的词。

删除：把多余的词用斜线(\ )划掉。

修改：在错的词下画一横线，并在该词下面写出修改后的词。

注意：1.每处错误及其修改均仅限一词；

2.只允许修改10处，多者(从第11处起)不计分.

Dear Ms. Wood,

I was a guest who stayed in your hotel a week ago. First of all, I want to express my sincere thanks for your good service which makes my stay in Australia more enjoyable. Therefore, you can do better in some aspects.

To begin with, I found out only one Chinese dish on the menu, that gave me a big surprise. Is it possible for you to provide Chinese dishes with more variety? In addition, it took me long time to find the emergency exit. Please make the signs well-marking. Finally, the clerk at the front desk could be more patiently. When asking about where to find the nearest swimming pool, she seemed rather annoyed.

I do hope you will take their advice into consideration. Thanks for your time.

Yours,

Li Hua

阅读下面材料，在空白处填入1个适当的单词或括号内单词的正确形式。

A high school senior student Liu Yu from Chengdu was beaten to the point of a bone fracture for trying to stop queue-jumping.

On Oct. 19, Liu went to a fast food restaurant on the 1.( two) floor of Wanda Plaza in Qingyang District. When Liu was queuing, a woman with a child jumped in front of him without asking. “Please stay in line. First come, first 2.( serve) ." Liu said, according to3.( video). The woman then replied she was in a hurry to pay before her cellphone's power ran out.

"It doesn't matter to me 4. your phone is out of power," Liu replied. After Liu said this, a man beside 5. woman attacked Liu, and the youth didn't fight back. Staff in the shop tried to stop the man, and the whole incident was recorded by the shop's video camera.

On the night of Oct. 23, the man 6. beat Liu was arrested by local police. He and his family confessed, and the case is now 7. further investigation.

This piece of news 8.( start) a heated discussion online so far, with the relevant topic being read 150 million times on Sina Weibo by Wednesday afternoon.

Some netizens say that it is easy to recover 9.( physical) , but psychological trauma will be harder10.( heal).

    Enlightenment （启迪）can show up in some pretty strange ways. The Buddha found it under a Boddhi tree ____ Nelson Mandela in prison. Little did I know, mine would ____ in the form of a hard-shelled animal trying to ____ the road — a turtle. But this wasn't just any turtle ； this was the world's most _____ one. He determined to cross twenty feet of tar （柏油）road as cars drove past quickly.

But today was his ____ day. My wife's quick driving reflexes （反应）not only ____ that 'turtle soup” would not be for dinner that night, but her act of kindness would ___ become the foundation for everything I teach today. As unusual as this sounds, the simple act of ______ our car, removing this little turtle from harm's way, and placing him back into the _____, caused something extraordinary to happen inside of me.

As I stood there ____ this tiny creature in my hands, a wave of pure ____ came over me. It was that warm, teary-eyed ____ that we feel during life's greatest moments, like falling in love or the birth of a child. I honestly felt as if my heart was ____ opening up as everything stood still around me.

______would I have described it as “enlightenment”, but there was no ____about it — helping this little turtle just felt so good!

But why?_____ , it's just a turtle, right? And then it hit me. I finally realized what was happening. At that point, a flood of inspiring thoughts ran through me. I walked back to the car, opened my journal and wrote eight words that would ____ prove to be life changing for me: " kindness creates happiness" and live a _____ of kindness".'

It was the ____ I had been looking for. The secret to inner peace and _____ happiness was kindness.

1.A.for B.and C.that D.so

2.A.leave B.return C.arrive D.combine

3.A.fix B.climb C.stop D.cross

4.A.optimistic B.weak C.pessimistic D.stressful

5.A.bad B.lucky C.boring D.dangerous

6.A.ensured B.kept C.accessed D.admitted

7.A.initially B.interestingly C.eventually D.hopefully

8.A.setting off B.breaking down C.passing by D.pulling over

9.A.tree B.park C.wild D.road

10.A.holding B.showing C.refreshing D.frightening

11.A.entertainment B.delight C.amusement D.movement

12.A.cooperation B.feeling C.connection D.adventure

13.A.completely B.complicatedly C.irregularly D.inevitably

14.A.In this way B.By the way C.In no way D.In the way

15.A.problem B.use C.answer D.doubt

16.A.Above all B.In conclusion C.After all D.In brief

17.A.latter B.latest C.lately D.later

18.A.living B.life C.way D.method

19.A.answer B.entrance C.attention D.approach

20.A.temporary B.desperate C.discontinuous D.lasting

    What are your talents? It's a seemingly simple question, but so many of us struggle to answer it. Yes, there are the fortunate among us who can quickly list that they are good singers, dancers, artists, teachers, or salespeople. For others, it's difficult. The truth is, everybody has talent. What is difficult is pinpointing （准确定位）them. Some talents, you have likely been using all along. You just need to reframe the way you've been thinking about them. Others are still waiting to be discovered. 1.

1. It's Time To Write Your Diary

Maybe it's cliche, but writing a diary is a great way to explore the seemingly routine things about your daily life. 2. That explorative process is a great way to begin unearthing your hidden talents.

2. Go Back To Your Past

Sometimes, you start off pursuing talents only to drop them as you get older. What you can do is take your past talents, and find new things to do with them. You just have to ask yourself:

★How can I renew this gift to help in my career?

★Can I begin pursuing this for my own enrichment?

★How will this make me a better person?

3. 3.

There may be no better way to figure out what you are good at than learning new things. Here's some amazing news, there may be no easier time to do that than right now. You can:

★Take a class for credit or continuing education at your local community college or university.

★Sign up for a class at your library.

★Learn a TED Talk.

★Take free online courses using MOOC or another option.

If we're honest about it, most of us do have spare time、It's just a matter of priorities.

4. Seek Out New Experiences

This is just one more reason to be open to new experiences. When you're willing to try out new things, you increase the likelihood of your realizing you're very good at something. 4. Ask to be cross-trained in another role at work. Walk through neighborhoods that you've never visited before. Conclusion

5.First, always seek out learning and new experience. Next, gain insights from your past, Then, simply pay attention to your daily life. Your most valuable talents could be right in front of you.

A. Keep Learning

B. Love Your Life

C. In any case, here are four ways to reveal your hidden talents

D. Travel to new countries

E. Check for classes at your local museum

F. At the end of the day, there are three things that help you to reveal your hidden talents

G. You write about the things you've done and your thoughts, then out of all that you pull out some great insights

    China's Bao Yongqing has been named the overall winner of the Wildlife Photographer of the Year competition for 2019, claiming one of the world's top photography awards.

The competition is developed and produced by the Natural History Museum in London. This year's competition, the 55th, drew more than 48,000 entries from 100 countries. The winning entry by Bao, a native of Qinghai province, is titled The Moment. It captures a remarkable standoff between a Tibetan fox and a marmot, and was taken on the Qinghai-Tibet Plateau. "Photographically, it is quite simply the perfect moment," said Roz Kidman Cox, the chairwoman of the judging panel. "The expressive intensity of the postures holds you transfixed, and the thread of energy between the raised paws seems to hold the protagonists in perfect balance, Cox said. "To have captured such a powerful interaction between a Tibetan fox and a marmot — two species key to the ecology of this high-grassland region — is extraordinary. Museum Director Michael Dixon said the picture captured "nature's ultimate challenge — the battle for survival". Bao, in a group interview on Wednesday, said of the photo: "It is very difficult and rare to capture this kind of moment, so I knew it was something very special. It took about two or three hours to get this photo. I was watching them for a long time. I have paid attention to this competition for a long time, and my first purpose was to show my image to the world, and secondly to protect the environment and my homeland," he said. " In my hometown, everyone looks after the animals, so when I go home with this award, it will be an encouragement to our people to be more protective of animals and the environment." In addition, the photographer said : "This competition is one of the most important among photographers in China, so I wanted to draw people's attention to animal protection. I hope it will introduce a passion for animals to more people."

The exhibition at the Natural History Museum in Kensington will open on Friday and run through the end of May next year, when it will go on a national and international tour. Entries for next year's competition will be accepted beginning on Oct. 21.

1.What does the underlined word " protagonists" in the 2nd paragraph mean?

A.Onlookers. B.Photographers.

C.Hunters. D.Main characters.

2.Which statement is TRUE according to the passage?

A.The competition originated from London.

B.It is a domestic competition in China.

C.The competition drew worldwide attention, making it the best event in photography.

D.Entries are strictly restricted, mainly focused on endangered animals.

3.What is the reason for Bao's winning the award?

A.His capturing a crucial moment between two typical species.

B.His expertise in photography.

C.His devotion to wildlife protection.

D.His publicizing the knowledge of rare animals.

4.What can we know from the passage?

A.The exhibition will go on a tour in China.

B.Bao has decided to submit his latest photo.

C.Taking photos is not painstaking.

D.Photograph is a way to raise people's awareness of animal protection.

    More than half of UK parents believe sunglasses should become an official part of school uniform, a study has found.

A study of 1,000 parents with children aged 4-12 found 72 percent worried about protecting their child's eyes from the sun. However, only 3 in 10 sent their child to school with sunglasses every time it was sunny. One-quarter even said their child was forbidden by their school from wearing sunglasses on school grounds.

A spokesperson for Monkey Monkey Sunglasses, which commissioned （委 托）the study, said, "Parents are consistently telling us that their children are more likely to wear sunglasses on holiday or to leisure activities than at school. We just want parents to be aware that the midday and afternoon sun can be equally strong in the school playground, on the school sports field, or on the walk home from school, as it is on the beach. Wearing hats and staying in the shade during these times help reduce UV exposure, but are not a substitute for wearing sunglasses with full UVA and UVB protection, because UV rays reflect through cloud cover and reflect off a variety of surfaces."

Researchers also found only 16 percent of those polled said their children always wear sunglasses on a sunny day and one in four said their child does not currently own a pair of sunglasses.

Parents of children who rarely or never wear sunglasses said their kids find them uncomfortable to wear and avoid them if they can. However, 57 percent who have bought their children sunglasses checked the glasses for their UV protection rating before making the purchase. When asked about their knowledge surrounding surfaces which reflect and increase UV radiation, 61 percent of parents who took part in the study, correctly said that snow reflected UV rays. One in four identified concrete surfaces and 56 percent pointed to water as a key reflector of UV rays.

Monkey Monkey's spokesperson added, "Estimates suggest that up to 80 percent of a person's lifetime exposure to UV is received before the age of 18, when children's eyes are also not yet fully developed. For these two reasons it is vital to protect young eyes from sun exposure at an early age."

1.According to the passage all the following statements are true EXCEPT that _____.

A.most parents questioned in a survey worried about protecting their child's eyes from the sun

B.some children were not allowed to wear sunglasses on school grounds

C.children were believed to wear sunglasses more often after school

D.parents only 3 in 10 sent their child to school with sunglasses in all kinds of weather

2.What can we infer from the text?

A.All parents prefer to wear sunglasses.

B.The study was carried out for a sunglasses company.

C.Concrete surfaces and water are reflectors of UV rays.

D.Children's eyes are not full-grown before the age of 18.

3.Who may be the target readers of this text?

A.Holiday makers. B.Sunglasses makers.

C.Policy makers. D.Film makers.

4.What's the best title for the passage?

A.Should Sunglasses Be Part of School Uniform?

B.Why Should Parents Buy Sunglasses for Kids?

C.How to Choose Suitable Sunglasses for Kids?

D.New Fashion in School — Sunglasses

    Children are the parents' pride and joy. And we love our parents. Whenever we have difficulties or troubles, they are the people we turn to. They offer us everything — life, love, courage and support. In return, we not only try our best to love and respect them, but also want them to take part in our lives.

However, that doesn't mean that we are going to share every moment with them. It is normal to have some things you don't want them to know or something that you think is better to be kept secret from them.

Here are some netizens' secrets hidden from their parents:

"My parents always told me not to fall in love in high school, otherwise I would fail in my studies. But now I'm dating a guy and I have no idea if I should tell them the truth."

"They are concerned about my studies and also afraid that I am being picked on in a puppy love. Yet I know they love me so much, but I don't want them to worry about me. So keeping this secret might be the best way."

"Last year, I was fired several times. The real world is not easy, and it took a long time for me to find another job that I really loved. During that time, I was penniless for months. However, whenever my parents asked me if everything was ok, I told a lie. I should have been strong enough to make them not worry about me, I endured a frustrating time."

"My parents spent thousands on my college education. They paid for where I wanted to live, to travel and even gave extra money for my leisure activities. However, I am not doing well in school and failed my classes last semester."

1.Which of the following statements is TRUE according to the passage?

A.If we love our parents, we should share everything with them.

B.The third netizen asked his or her parents for money when out of work.

C.The fourth netizen is still studying in a university.

D.The first netizen decided to tell her parents she was in love with someone.

2.Parents are afraid of their children falling love in high school mainly because______.

A.it may have bad impact on their studies

B.the school doesn't allow them to

C.they think they are too young

D.they are afraid of their children being hurt

3.How may the last netizen feel when he or she is not doing well in school?

A.Proud. B.Guilty.

C.Angry D.Delighted.

4 Best Washing Machines to Buy in 2019, According to Cleaning Appliance Experts

BEST OVERALL WASHING MACHINE

Flex Wash Washing Machine

SAMSUNG

$1,548. 90

This double-duty machine offers flexibility thanks to two separately controlled washers in the same unit. The bottom is built for extra-large loads and has super-cleaning cycle options, which include sanitizing and steam settings. You even have the ability to add up to five rinses （漂洗）onto a cycle to remove every bit of detergent （洗衣液）from larger items like a jacket.

Capacity: 6. 0 cubic feet

BEST VALUE WASHING MACHINE

High-Efficiency Top Load Washing Machine

GE

$699. 99

In our tests, GE's washing skills rival more expensive machines. This classic top-loader is super-straightforward to use. We're impressed that at this price it offers options like an up to two-hour automatic presoak, deep fill and rinse for more customized water levels, has very good capacity, and is Energy Star Qualified.

Capacity: 4. 2 cubic feet

BEST TOP LOAD WASHING MACHINE

High-Efficiency Top Load Washing Machine

MAYTAG

$650. 00

This washer has a traditional center agitator （搅拌器），but is still so huge inside. You'll never notice any compromise in capacity. While it's energy-saving and efficient, you can add more water if you'd like to with the Deep Fill option.

Capacity: 5. 3 cubic feet

BEST COMPACT WASHING MACHINE

TwinDos Washing Machine

BOSCH

$1,999.00

This mighty mini is a Good Housekeeping Seal holder for good reason: Its deceptively large interior and space-saving exterior make it the perfect choice to install in small homes, apartments, or as second-floor laundry in a closet or bathroom.

Capacity: 2. 26 cubic feet

1.If you want your clothes rinsed thoroughly, you'd better choose______.

A.SAMSUNG B.GE

C.MAYTAG D.BOSCH

2.GE has the following functions EXCEPT_____ .

A.deep fill B.automatic presoak

C.huge capacity D.steam setting

3.If you have a limited budget, you should choose______.

A.SAMSUNG B.GE

C.MAYTAG D.BOSCH

4.Which of the following statements is NOT TRUE?

A.BOSCH's TwinDos occupies the smallest space among the four.

B.The only weakness of MAYTAG is its capacity.

C.Everything considered, SAMSUNG’S Flex Wash is the best washing machine to buy.

D.The most environmentally friendly washing machine goes to GE among the four.

Directions：Read the following passage. Fill in each blank with a proper sentence given in the box. Each sentence can be used only once. Note that there are two more sentences than you need.

5 Features about Premium Economy（豪华经济舱）

If the sight of your fellow passengers relaxing in premium economy has you filled with envy, you’re not alone. It seems like every airline is providing a few rows of seats that offer just that much more legroom and space. But is it worth the price? Here are five features about premium economy class.

1. Premium economy is pretty much the same on every airline.

“1.”, says Zach Honig, editor-in-chief of the The Points Guy. Benefits can include anywhere from 5 to 7 inches of extra legroom, a slightly wider seat and slightly more seat recline (向后倚靠). Other conveniences can include adjustable head rests, leg rests on some carriers, larger personal TV screens, power ports and a better level of food. But frankly, nothing is standardized.

2. You get a meal and free drinks with a premium economy seat.

Not on most domestic flights that offer a semblance (表象) of international service. 2. But when it comes to meals, you’ll get a few more bags of free peanuts than they offer in coach and the opportunity to purchase pre- packed in-flight meals before economy-class passengers do.

3. There are others benefits, like free Wi-Fi.

You might find furrier pillows and larger blankets, but add-ons like in-flight Wi-Fi usually come along with an additional charge. “3.”, says DiScala of Johnny Jet, who adds, “Some do, so always ask. I made the mistake of buying Wi-Fi on my SAS flight in June. I later learned that premium passengers get it for free.”

4. You get a lot more space.

A “lot more space” is very relative. Don’t expect a huge seat, just one that’s somewhat larger than those in economy on the same aircraft. Honig says that “You can expect to find roughly as much space as you’ll get in the domestic first-class cabin on a U.S. airline, or in JetBlue’s ‘Even More Space’ section. It’s definitely more than you’ll have in coach.”

5. 4.

“Just as with business class, it’s worth checking the price of premium economy,” says Leff of ViewfromtheWing.com. “The addition may not be very high. Last weekend, I wrote about premium economy on Virgin Atlantic being cheaper than coach. But it may also be much more expensive. Airfares vary dramatically, and that’s as true for premium economy as it is for coach.”

A. It all depends on the airline.

B. Premium economy is always worth the money.

C. In the end, it all comes down to money and how much you think it’s worthwhile to pay more.

D. Just as with business class and even regular coach, the seats and product vary significantly from one airline to the next.

E. That couldn’t be further from the truth.

F. Delta’s Comfort+, gives you slightly more space and a chance to board early.

    This month, Germany’s transport minister, Alexander Dobrindt, proposed the first set of rules for autonomous vehicles. They would define the driver’s role in such cars and govern how such cars perform in crashes where lives might be lost.

The proposal attempts to deal with what some call the “death valley” of autonomous vehicles: the grey area between semi-autonomous and fully driverless cars that could delay the driverless future.

Dobrindt wants three things: that a car always chooses property damage over personal injury; that it never distinguishes between humans based on age or race; and that if a human removes his or her hands from the driving wheel — to check email, say — the car’s maker is responsible if there is a crash.

“The change to the road traffic law will permit fully automatic driving,” says Dobrindt. It will put fully driverless cars on an equal legal footing to human drivers, he says.

Who is responsible for the operation of such vehicles is not clear among car makers, consumers and lawyers. “The liability issue is the biggest one of them all,” says Natasha Merat at the University of Leeds, UK.

An assumption behind UK insurance for driverless cars, introduced earlier this year, insists that a human “be watchful and monitoring the road” at every moment.

But that is not what many people have in mind when thinking of driverless cars. “When you say ‘driverless cars’, people expect driverless cars.” Merat says. “You know — no driver.”

Because of the confusion, Merat thinks some car makers will wait until vehicles can be fully automated without operation.

Driverless cars may end up being a form of public transport rather than vehicles you own, says Ryan Calo at Stanford University, California. That is happening in the UK and Singapore, where government-provided driverless vehicles are being launched.

That would go down poorly in the US, however. “The idea that the government would take over driverless cars and treat them as a public good would get absolutely nowhere here,” says Calo.

1.What does the phrase “death valley” in Paragraph 2 refer to?

A.A place where cars often break down.

B.A case where passing a law is impossible.

C.An area where no driving is permitted.

D.A situation where drivers’ role is not clear.

2.The proposal put forward by Dobrindt aims to _____ .

A.stop people from breaking traffic rules

B.help promote fully automatic driving

C.protect drivers of all ages and races

D.prevent serious property damage

3.What do consumers think of the operation of driverless cars?

A.It should get the attention of insurance companies.

B.It should be the main concern of law makers.

C.It should not cause deadly traffic accidents.

D.It should involve no human responsibility.

4.What could be the best title for the passage?

A.Autonomous Driving: Whose Liability?

B.Fully Automatic Cars: A New Breakthrough

C.Autonomous Vehicles: Driver Removed!

D.Driverless Cars: Root of Road Accidents

    If you think about the countless number of animal species on our planet, the giraffe is perhaps one of the most interesting. With its unusual pattern and incredibly long neck, it looks like no other animal on Earth. But how did this mammal come to get its famously huge neck? Well, scientists have been asking themselves this question for centuries.

The most commonly believed answer is that the massive neck — which measures on average 180 centimeters and weighs about 270 kilograms — evolved to allow the animal to reach the leaves of tall trees.

British scientist Charles Darwin was one of the first people to propose this idea in the 1800s.“The giraffe… has its whole frame beautifully adapted for browsing on the higher branches of trees,”he wrote in his famous 1859 book On the Origin of Species. It was Darwin’s belief that the giraffe once had a much shorter neck, but over time, evolution led to longer-necked giraffes being born, which in turn survived as they were able to reach the food that others couldn’t. Yet, there are other theories. According to a paper published in September in the Journal of Arid Environments, the giraffe’s neck evolved to increase its surface-area-to-volume ratio. Because the animal’s neck increases its body’s surface area, it makes it easier for it to keep cool, the paper’s authors wrote. This phenomenon can be seen everywhere in nature, and even in engineering.

For example, this is why elephants have such large ears, and why radiators (暖气片) in homes are flat and thin, as a large surface area allows heat to escape quicker.

Meanwhile, some believe that competition is the answer. A 1996 study by two South African zoologists argued that the male giraffes with the biggest necks are the ones who “win” access to females to reproduce, as they are better at fighting, meaning that their long necks are passed down through the generations. So, it seems like there’s still no definite answer to the question. But until we find the truth, we should at least enjoy this beautiful and interesting creature for what it is today, rather than wonder about where it came from.

1.What idea did Charles Darwin put forward in his book?

A.Giraffe’s necks are 180 cm long and weigh 270 kg on average.

B.Giraffes with a long neck are better at fighting.

C.Giraffes are a species that is born with a long neck.

D.Longer-necked giraffes are able to survive better.

2.What is the article mainly about?

A.Charles Darwin’s theory of evolution.

B.Different functions of the giraffe’s long neck.

C.How the giraffe manages to survive in nature.

D.Theories about why the giraffe has a huge neck.

This article is for all of the teenagers out there. Even though ____ you are years from being fully grown, society regularly expects you to adult. Yes, you are ____ in many ways: many of you drive and do so quite safely, and you handle schedules that would ____ many adults. But you probably cannot process caffeine (咖啡因) as constantly as your parents can because of your still-growing bodies and brains.

I understand it feels grown-up to be drinking a cup of Starbucks. But all of this caffeine may worsen your anxiety, affect tonight’s sleep and tomorrow’s school performance, ____ nutrient absorption and even cause real trouble when mixed with alcohol. The following four aspects may well ____ the theme of this article.

The power of caffeine

Caffeine is widely considered a drug that is socially acceptable, universally used, even cool, but it still causes ____ symptoms such as headaches, fatigue and a lack of attention when removed from coffee-addicts’ diets.

How much is healthy?

Caffeine is by no means a nutrient; you do not need it to be healthy. ____, it is a substance that can leave you lacking nutrients because it has been shown to reduce calcium (钙). Caffeine probably causes the body to release water. And the more caffeinated drinks you consume, the less likely you are to drink water. So experts say that adolescents should consume ____ amounts of caffeine a day (≤100 mg).

Caffeine’s ____

According to the Centers for Disease Control and Prevention, about 65 percent of middle and higher schoolers are ____ to insufficient sleep on school nights. Some of their sleep problems can be mainly attributed to (归因于) caffeine, which can remain in the body for seven hours after ____, thus causing teens’ worse performance the next day. It is widely assumed that adequate sleep ____ proper growth and brain development. During childhood and adolescence, the brain goes through a period called synaptic pruning (突触修剪) when unnecessary connections are promoted.

Caffeine labelling

Caffeine is not listed on the Nutrition Facts column on food labels because it is not a ____. It may be listed as an ingredient, but the amount is not required. Caffeine is now added to foods such as gum, candy and water, along with makeup and beauty products that ____ to reduce swelling (肿块).

Taste preferences and eating habits are often cultivated in childhood and adolescence, so teens, when you consume sweet, caffeinated drinks every time you feel sluggish (无精打采的), you are creating a pattern that may be hard to break as an adult. It is advisable to come up with other ____ ways to boost energy so that you can master adulting better than many adults.

1.A. potentially    B. necessarily    C. developmentally    D. materially

2.A. mature    B. experienced    C. productive    D. disciplined

3.A. delight    B. frustrate    C. liberate    D. exclude

4.A. promote    B. assist    C. intensify    D. discourage

5.A. call for    B. account for    C. turn to    D. appeal to

6.A. withdrawal    B. addiction    C. nutrition    D. infection

7.A. Therefore    B. Instead    C. Moreover    D. Otherwise

8.A. initial    B. sufficient    C. moderate    D. stable

9.A. reputations    B. confirmations    C. implications    D. disadvantages

10.A. subjected    B. alerted    C. reduced    D. opposed

11.A. stimulation    B. concentration    C. excitement    D. consumption

12.A. results from    B. contributes to    C. benefits from    D. attends to

13.A. therapy    B. material    C. nutrient    D. substitute

14.A. fail    B. appear    C. promise    D. happen

15.A. instructive    B. comprehensive    C. extensive    D. alternative

Always the _____ , Franklin believed the practice of moving the time could save on the use of candlelight, as candles were expensive at the time.

A.journalist B.physicist C.chemist D.economist

Heat exhaustion is generally_____ by sweaty skin, tiredness, sickness, dizziness and sometimes fainting, resulting from an inadequate intake of water and the loss of fluids.

A.featured B.characterized C.distinct D.typical

The human body can tolerate only a small range of temperature, _____ when the person is engaged in vigorous activity.

A.essentially B.specially C.generally D.especially

The picture offer the best evidence to date that a planet once _____ dead is actually a lively pot of geological change.

A.assuming B.assumed C.resuming D.resumed