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。
Two new satellites of BeiDou Navigation(导航) Satellite System (BDS) 1. (send) into space on a Long March-3D carrier rocket from the Xichang Satellite Launch Center in Sichuan Province, China at 2:07 a.m. on November 19,2018. The satellites entered a Medium Earth orbit2. (safe) more than three hours later and will work with 17 other BDS-3 satellites already in space. They are also the 42nd and 43rd3. (member) of the BDS satellite family.
China launched these satellites with 4. aim of providing navigation services for countries and regions which participate in the Belt and Road Proposal by the end of 2018. “This is a key step for BDS developing 5. a Chinese experimental system to a regional and then a 6. (globe) navigation system,” said Yang Changfeng, chief designer of the BeiDou system. The positioning 7. (accurate) of the BDS-3 system has been improved to 2.5 meters to 5 meters, said Yang.
8. (name) after the Chinese term for the Plough, the BeiDou system has been serving China for 18 years 9. another six BDS-3 satellites will be put into the Medium Earth orbit from 2019 to 2020. The system is expected 10. (provide) first-class services around the globe by the end of 2020.
I always come across random acts of kindness in my life. Many years ago, I was _____Costa Rica when I found myself in an _____situation: my credit cards and bank cards went out of _______ abroad, and I only had $5 to my ______.
I had no way to get money. I didn’t know anybody in this country. I only knew basic Spanish, and besides the cash the only ______I had was a return ticket to my country in almost two ______. Back then, there was no such thing as mobile phones, and______email was very limited. To find help, I decided to go to the countryside . With the only coins I had, I _______the bus terminal(终点站)and found a village, which ______almost the exact amount. About 4 hours later, I arrived at Santa Rosa Abajo at midnight.
I knocked door to door,______in my very poor Spanish that I was a foreigner travelling in Costa Rica with no money but I ______to stay here for over ten days. I begged them for a ________－such as cooking , cleaning and looking after their kids, anything like that. Everybody _______, “oh my, but so poor are we that we have no _____ food or space. Maybe you can try the next ______.” And they’d point me to another house.
_______, I arrived at a Chinese restaurant. The owner of the restaurant was very _______. She gave me food and called the Red Cross to come to ______me. With the help of the Red Cross , I spent my_______days in Costa Rica.
This is one of the best trips I’ve ever had, because I realized that when you’re in a position to be able to _______, it actually makes you feel happy.
1.A. circling B. considering C. entering D. visiting
2.A. absurd B. impossible C. awkward D. ordinary
3.A. use B. range C. control D. date
4.A. advantage B. wonder C. name D. credit
5.A. necessity B. possession C. memory D. impression
6.A. hours B. days C. weeks D. months
7.A. again B. even C. yet D. thus
8.A. looked for B. headed to C. stayed at D. thought of
9.A. created B. earned C. saved D. cost
10.A. explaining B. reminding C. apologizing D. informing
11.A. managed B. needed C. failed D. agreed
12.A. job B. meal C. room D. conversation
13.A. accepted B. nodded C. replied D. withdrew
14.A. extra B. cheap C. prepared D. wasted
15.A. time B. chance C. family D. restaurant
16.A. Normally B. Naturally C. Directly D. Finally
17.A. sensible B. rich C. confident D. generous
18.A. rescue B. comfort C. interview D. encourage
19.A. frightening B. training C. exciting D. remaining
20.A. help B. receive C. succeed D. travel
After a long day at work, coming home is a breath of fresh air. Home is a comfortable place to sit back and relax. 1. Below are a number of things we can do to create a healthy home environment that will help to ease the workday stress and promote our physical and mental health.
Cleaning the house regularly is the first thing we should do. It may seem like a tiring thing to clean but there is a reason for doing so. We can remove dust by cleaning the house. Leaving layers of dust everywhere means that there is a build-up of dust. And where do these layers of dust go?2.
Making sure the rooms are full of sunlight is also important. We may not realize it but sunlight is an important part of our growth. We all know that sunlight promotes better working conditions. 3. Think about using a Parans system where sunlight does not reach. This technology gathers the sunlight by using solar panels. It can send out sunlight wherever we are.
4. Going green will help to remove toxins(毒素)in the air. They also give off oxygen, which can lower stress and improve our moods.
Along the lines of being green, it can also be vital to think about what things we are bringing into the house. Try to avoid specific plastics that are harmful to health. 5. They may contain poisonous chemicals that can be breathed in, or simple absorbed through the skin.
A. However，is it as healthy as it can be?
B. Is our home as comfortable as it used to be?
C. Into our lungs.
D. The same thing applies to certain carpets and paint.
E. Besides, it can reduce both stress and high blood pressure.
F. It is also a good idea to add more plants in our house.
G. It is acknowledges that a greener lifestyle is linked to better health.
On average ,Americans spend about 10 hours a day in front of a computer or other electronic devices and less than 30 minutes a day outdoors. That is a claim made by David Strayer, a professor of psychology at the University of Utah. In his 2017 TED Talk , Strayer explained that all this time spent with technology is making our brains tired.
Using an electronic device to answer emails, listen to the news and look at Facebook puts a lot of pressure on the front of the brain, which, Strayer explains , is important for critical (有判断力的)thinking , problem-solving and decision-making.
So, it is important to give the brain a rest. And being in naure , Strayer claims , helps get a tired brain away from too much technology. More than 15,000 campers from around the world attended an international camping festival in September. That is when friends and family take time off and escape to nature for several days. They take walks, climb, explore , swim, sleep, eat and play. Camping may be just what a tired brain needs.
Take Carl for example .He lives in West Virginia and enjoys camping . He says that staying outdoors makes him feel at ease. It also prepares him for the work he must do. Kate Somers is another example who also lives in West Virginia. She says she enjoys camping with her husband and two children . She calls it a “regenerative” experience.
At the University of Utah , David Strayer has studied both short-term and long-term exposure to nature. He found that spending short amounts of time in nature without technology does calm the brain and helps it to remember better. However ,he found , it is the long-term contact with nature that does the most good. He and his research team found that spending three days in nature without any technology is enough time for the brain to fully relax and reset itself.
1.What is David Strayer’s opinion ?
A. Americans dislike outdoor activities
B. Electronic equipment should be quitted
C. New technologies are a double-edged sword
D. Electronic equipment brings great convenience
2.Why does Strayer insist we go outdoors?
A. To try another lifestyle B. To refresh our brain
C. To make better decisions. D. To play with our family and friends
3.What does the underlined word “regenerative” mean?
A. Reborn B. Memorable C. Remarkable D. Tiring
4.Which is the proper title for the passage?
A. Electronic Equipment Harms the Brain
B. Good Rest Develops Good Memory
C. Tips on Using New Technologies
D. Being in Nature Is Good for the Brain
A study showed that the experiences children have in their first few years are important . These experiences affect the development of the brain. When children receive more attention, they often have higher IQs. Babies receive information when they see, hear and feel things, which makes connections between different parts of the brain. There are a hundred trillion(万亿)connections in the brain of a three-year-old child.
Researcher Judit Gervain tested how good newborns are at distinguishing different sound patterns. Her researchers produced images of the brains of babies as they heard different sound patterns. For example, one order was mu-ba-ba. This is the pattern"A-B-B". Another order was mu-ba-ge. This is the pattern “A-B-C”. The images showed that the part of the brain responsible for speech was more active during the" A-B-B"pattern. This shows that babies can tell the difference between different patterns. They also were sensitive to where it occurred in the order.
Gervain is excited by these findings because the order of sounds is the building block of words and grammar."Position is key to language," she says. "If something is at the beginning or at the end, it makes a big difference:'John caught the bear.' is very different from 'The bear caught John.'”
Researchers led by scientist Patricia Kuhl have found that language delivered by televisions, audio books,the Internet, or smartphones－no matter how educational－doesn’t appear to be enough for children’s brain development. They carried out a study of nine-month-old American babies. They expected the first group who’d watched videos in Chinese to show the same kind of learning as the second group who were brought face-to-face with the same sounds. Instead they found a huge difference. The babies in the second group were able to distinguish between similar Chinese sounds as well as native listeners. But the other babies －regardless of whether they had watched the video or listened to the audio－learned nothing.
1.What makes connections in a baby’s brain?
A. Having a higher IQ. B. Experiencing new information
C. The baby’ early age D. The connection with other babies
2.What did Judit Gervain and her team find in the experiment?
A. Babies identify different sound patterns.
B. Word order is relevant to meaning.
C. Babies can well understand different words.
D. A certain brain region processes language.
3.What does the underlined sentence mean in Paragraph 3?
A. Grammar is important in learning languages.
B. Different orders have different meanings.
C. Different languages have different grammar.
D. Words have different sounds.
4.What is the main conclusion from the study led by Patricia Kuhl?
A. Babies shouldn’t watch a lot of television.
B. Listening to different languages develops babies’ brain
C. Foreign languages help babies’ brain develop
D. Social communication improves babies’ brain development.
Judy Wright and her husband decided to move closer to their son, Chris ,who lived in Georgia. About a month after the move ,Judy fell ill, suffering from her ongoing battle against Parkinson’s disease.
Her condition worsened rapidly and she required medical care at home. The family hired a nursing aid who canceled at the last minute. Instead , a woman named TunDe Hector showed up in her place.
One day, TunDe shared a story with Judy and her family. She remembered a particularly difficult day in 2014, when a stranger had helped her with a kind gesture. She had run out of gas, and with only$5 in her pocket ,was walking to a gas station, gas can in hand. A man saw her walking and turned his car around. He paid for her gas and gave her all the cash left in his wallet. Upon hearing the story , Judy’s son, Chris, took off his hat and said ,"That was me!” He was the stranger that had helped TunDe on that difficult day.
During the care of Judy, the Wright family learned about TunDe’s family and her own dream. The nursing aid, TunDe hoped that one day she could become an OB-GYN nurse.Her tuition was past due(逾期) and she had a family to care for, but she was determined to achieve that goal for herself and her family.
Judy died on July 9,2017. Instead of flowers, her family asked mourners(悼念者) to donate to TunDe’s education , to assist her in paying for her nursing school. In less than a week, they raised more than $8,000 and presented her with the surprise check.
1.Why did Judy’s family choose TunDe in the end?
A. To help her with a kind gesture .
B. To replace another nursing aid.
C. To look after Judy in the hospital
D. To give Judy the best medical care
2.How might Chris feel when hearing TunDe’s story?
A. Shocked B. Thrilled C. Puzzled D. Delighted
3.How did the Wright family help TunDe after Judy’s death?
A. They paid for her education
B. They helped care for her family
C. They helped her realize her dream.
D. They bought her a surprise present
4.What does the whole story mainly tell us ?
A. Kindness comes full circle B. Actions speak louder than words.
C. The truth never fears investigation D. Constant dropping wears stone.
