根据句意或单词的首字母填写所给单词的正确形式。
1.The past few years have ________ (目睹)great changes throughout China.
2.Let's ________ (思考)on what we did.
3.She made a d_________ of $5,000 to the Children’s Hospital.
4.Since you have settled down in a new country, you have to make an a_________ to the new environment.
5.He was willing to participate in the _________ (自愿的) activity.
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。
Scientists said that slower walkers who are 1.their forties and fifties could get older 2.(quickly) than faster walkers. They could age both 3.(physical) and mentally. Doctors already knew that older people who walked slowly were more likely 4.(have) health problems. They wanted to find out if this was 5.same for younger people.
The researchers conducted a study. The participants had medical records of health checks throughout their lives. For some, these records went back to when they 6.(be) three years old. The researchers used data on the 7.(intelligent) of the participants. They looked at 8.quickly people could calculate things. They also did tests on the participants at 9.(differ) walking speeds. The participants were requested to say the alphabet while 10.(walk) at a normal speed and fast speed. They found that people who walked more slowly showed less brain activity when they were reciting the alphabet.
An Aussie family vacation has been saved thanks to a kind-hearted stranger. He helped the stranded (陷于困境的) travelers after learning about their _______on social media.
The Melrose family had been in the middle of a 2, 500-mile road trip across Australia last week when their car_______in the middle of the Northern Territory.
Daryn Melrose, his wife, and two daughters had _______their home in Gippsland with two boats in tow (拖在后面) so they could _______in the national minnow sailing championships in Darwin.
Since the youngsters had spent all year_______for the tournament, they were_______when they realized that all of their efforts would be in vain — with 620 miles standing between them and Darwin, it seemed as if they had no _______ but to give up their _______of competing.
Upon learning about their _______, ABC News made a social media post in the ________ that one of their readers would be willing to________ the Melrose family.
Darwin resident Rodney Sims had been ________ his news feed when he saw the appeal for help and recalled (回想起) a time when he had been in the same situation.
“About 30 years ago, strangely enough, I was in a ________situation with a broken-down car and someone helped me out...this was my time to________,” Sims said.
Sims then jumped in his truck and ________all the way down to where the family was staying in a Tenant Creek motel. After fastening their boats to his ________, he brought the Melroses all the way back to Darwin, ________to a shocking 1,250-mile round-trip journey.
Needless to say, the Melroses were extremely ________by the stranger’s act of kindness.
“What a fantastic effort,” Daryn said.“My daughters and I could not be more________for his efforts,” he added. “They got here ________and are hoping for good results after their competitions.”
1.A.disadvantages B.troubles C.conversations D.purposes
2.A.caught up B.turned up C.fell down D.broke down
3.A.left B.lost C.shared D.abandoned
4.A.serve B.survive C.compete D.develop
5.A.training B.arguing C.designing D.searching
6.A.determined B.independent C.heartbroken D.ashamed
7.A.reason B.choice C.question D.doubt
8.A.jobs B.hobbies C.members D.dreams
9.A.instruction B.dilemma C.behavior D.preference
10.A.manner B.theory C.hope D.order
11.A.help B.expect C.beat D.admit
12.A.preparing for B.caring about C.checking with D.looking through
13.A.similar B.defensive C.common D.particular
14.A.speak out B.give back C.hold on D.set out
15.A.ran B.cycled C.walked D.drove
16.A.pole B.machine C.truck D.boat
17.A.exposing B.increasing C.spreading D.amounting
18.A.amused B.touched C.confused D.embarrassed
19.A.silent B.responsible C.grateful D.anxious
20.A.in time B.in turn C.in secret D.in short
These days, many people participate in talent shows because they want to be famous.1.Would you believe that an entire town once entered a game show so it could become famous?
In the 1950s, Hot Springs, New Mexico, was a small town known for its hot springs.2.
At that time, the citizens of Hot Springs liked to listen to the radio. One program they enjoyed was called “Truth or Consequences”.3.In the show, contestants(参赛者) would answer a challenging question. If they answered the question correctly, they were rewarded with a prize.
In 1950s, Ralph Edwards announced that he would visit and perform his radio show from the first town in America to change its name to Truth or Consequences.4.True to his word, Ralph Edwards visited the town and performed his show. So the town is known as Truth or Consequences.
Today, not many people remember the radio show “ Truth or Consequences”.5.The first weekend in May is the date of their yearly festival.
A.It was hosted by Ralph Edwards.
B.They hold a big celebration every year.
C.Hot Springs seized the opportunity.
D.They would reunite with friends or family.
E.It was home to over forty natural hot springs.
F.Other people enter game shows so they can win money.
G.The citizens of Truth or Consequences remember though.
Summer is the season of mosquitoes. And mosquito bites are truly the worst-not only are they huge and painful, but they itch(发痒) like nothing else. And once you start scratching (挠), it’s hard to stop.
You can blame female mosquitoes for the trouble we all face. There is something that enters the skin while the mosquito is enjoying its blood meal. This is the protein that leads to the allergic reaction and itching. Basically, our immune systems see the protein as an enemy. This causes the local reaction we see as the bug bite. Our bodies are just particularly sensitive to mosquito bites. Other bug bites may not have the same effect on your immune system. Bees for example, are likely to produce more pain than an itch.
Scratching a mosquito bite is a double-edged sword. It feels so good, but it also makes the itch way worse. When you scratch, you may release more local histamine, the chemical in the skin that causes the itching, and you may also be spreading the allergen under the skin. If you tend to scratch until you bleed you’re putting yourself at risk for skin infections.
You’re not imagining it -mosquito bites do itch more at night. Most people itch more at night because we are less distracted as we try to fall asleep.
If you’ve ever wondered why some mosquito bites itch more than others, it totally depends on your body. Everyone responds differently to mosquito bites. While some people may have a minimal reaction, others may experience serious reaction. It just depends on your body’s immune system. People with so-called atopic traits, who are highly sensitive, are more likely to develop more serious local reactions after the mosquito bites.
1.What accounts for the itch you feel after a mosquito bite?
A.The blood type. B.The sensitivity of our skin.
C.The change of temperature. D.The protein from mosquitoes.
2.Why do mosquito bites itch more when scratch them?
A.Scratching them helps the blood to flow quicker.
B.Your skin will be infected after you scratch them.
C.Scratching them causes a special chemical to let out.
D.You focus more on mosquito bites when you are scratching them.
3.Why are some people bothered less by mosquito bites than others?
A.Their body’s immune system is less sensitive to the bites.
B.They pay less attention to the mosquito bites.
C.Their skin is thicker than others.
D.They get used to the bites.
4.What is the text mainly about?
A.The cure for mosquito bites. B.The itch caused by mosquito bites.
C.Why mosquito bites itch less than bee bites. D.How people respond to mosquito bites differently.
We all know that forests-especially rainforests-absorb carbon dioxide and produce the oxygen that all living things depend on. It’s no wonder that they have been named the lungs of the planet. Today, after the big fires in the Amazon, Alaska, Greenland, and even Siberia, it’s very clear that we need to grow a forest that is fireproof. That’s not an impossible dream. We can grow seaweed forests that are fireproof because they are underwater.
Seaweed can store carbon and help reduce the influence of global warming. Now, seaweed is being farmed in small ocean farms to be used for food, medicines, and beauty products. If seaweed can be grown on a large scale(大规模地), it could help to fight against global warming.
“Seaweed is finally having its moment in the spotlight,” said Halley Froehlich, a scientist at the University of California. She is the lead author of a new study published in Current Biology. The study shows that large-scale seaweed farming could be used to cancel out land-based carbon emissions and it mapped the areas of the oceans where seaweed could be grown.
Now, only 3.8 percent of the US waters off the coast of California are being used to grow seaweed but that is just 0.065 of the ocean that can be farmed. In fact, 48 square kilometers of the world’s oceans can be used for seaweed farming.
For seaweed farms to be part of the global solution, they will have to be much larger. To create underwater forests, seaweed would have to be grown, harvested and then sunk into the deep ocean so that the trapped carbon could be buried for years to come.
While it sounds like a good plan on paper, “The technology doesn’t yet exist” to keep seaweed in the deep ocean, said Froehlich. “Hopefully this paper encourages conversation among engineers and economists about what it would take for the actual tools to be put in place.”
1.What makes people put forward the idea of growing seaweed forests?
A.The burning of forests.
B.Seaweed’s economic and medical value.
C.Uncontrollable carbon dioxide emissions.
D.Their long-lasting dream of underwater exploration.
2.Why can seaweed be used to fight against global warming?
A.It doesn’t burn. B.It doesn’t pollute.
C.It can take in carbon. D.It can break down plastics.
3.What does the underlined part “having its moment in the spotlight”in Paragraph 4 probably mean?
A.Breaking silence. B.Taking a bad turn.
C.Drawing people’s attention. D.Making room for other products.
4.What does Frochlich say about the idea of growing seaweed forests in the last paragraph?
A.It has a long way to go. B.It has been put into practice.
C.It needs lots of money to carry out. D.It needs enough evidence to support.
