1 . Fifteen volunteers have come out a difficult situation from a cave (洞穴) in the southwest of France after spending 40 days without clocks, phones, or sunlight for a human isolation experiment. The group had no communication with the outside world and was not able to use any electronic devices.
Eight men and seven women were grouped to live in the cave as part of a $ 1.4 million project called Deep Time, which set out to explore the limits of human ability to gradually change their behaviour and attitudes in the new situation. The experiment ended after 40 days.
During their time in the cave, the volunteers slept in tents and made their own electricity with a bike since there was no natural light. They also got water from a well (井) 146 feet below the earth. Since there was no sunlight, the team had to follow their biological clocks to know when to sleep, eat, or do daily tasks. To no one’s surprise, they quickly lost their sense of time.
One of the volunteers said he thought he had been underground for 23 days. Another volunteer said he ran 10-kilometer circles in the cave to stay fit. And he couldn’t wait to leave the cave. But other volunteers felt differently, with two-thirds saying they wanted to stay in the cave for longer. Some even thought it was as if they could press pause and stop to live.
During their time in the cave, scientists carefully watched and checked the volunteers including their sleeping patterns, social activities and cognitive functions (认知功能). The experiment will help scientists understand how human brains can help people adapt (适应) to serious living conditions in new situations.
根据短文内容,选择最佳答案。
1. In paragraph 1, the underlined word “isolation” probably means ________.
A.生存 | B.极限 | C.脑功能 | D.隔绝 |
A.Eight men and seven women were involved in the experiment. |
B.The project cost $ 1.4 million. |
C.The project was all about human isolation experiment. |
D.The experiment lasted for 40 days. |
A.didn’t know how to make electricity | B.lost their sense of time |
C.knew how to get water | D.forgot when to sleep |
A.it seemed life was slowing down for them | B.they could keep fit |
C.they were proud of living underground | D.they lived a happy life together there |
A.study human sleeping patterns | B.work out human social activities |
C.research how human brains work | D.examine human cognitive functions |
2 . It’s three o’clock in the afternoon. The golden sunshine comes through the southern window of the main reading room of the Braille (盲文) Library of China (BLC), yet not a single reader can be seen.
This doesn’t mean the librarian is doing nothing. ________ She keeps an eye on We Chat while checking QQ for new messages, as well as being ready to answer the phone that might ring at any time. All calls and messages come from visually impaired (有视觉障碍的) people or their families.
Since it was set up in 1994, the BLC has been providing free mailing service for the visually impaired. They can just send messages or make phone calls to request the books they need and then wait at home for them to arrive. After finishing the books, they only need to stick a prepared address card to the mail bag that comes with the books and put it in the mailbox.
The service has helped many visually impaired people who want to learn at home. Cheng Donghao, a 22-year-old blind man, is one of the over 20, 000 people who directly benefit (获益) from it. Having been a member of the BLC for about 10 years, Cheng has borrowed Braille books since primary school. “Now, I am preparing for the 2022 college entrance exam and I want to learn traditional Chinese medicine in university,” he says.
“The best way of improving the lives of the visually impaired is to help them gain (获得) knowledge,” says Zhu Bing, head of the BLC.
根据材料内容,选择最佳答案。
1. The writer tries to tell us ________ by describing the reading room of the BLC.
A.it’s enjoyable to read in the library | B.there are few readers in the library |
C.the library has a good environment | D.the view from the window is beautiful |
A.Instead, she’s pretty busy. | B.Actually, she has to read to the readers. |
C.She must show the readers where to sit. | D.She can take a short break from time to time. |
A.Everyone can use the service. |
B.It costs the readers a little money. |
C.The readers can only borrow books by calling the library. |
D.The readers don’t need to leave their home to borrow books. |
A.A teacher. | B.A postman. | C.A doctor. | D.A writer. |
A.readers can keep the books after they finish reading them |
B.the BLC has a history of more than thirty years |
C.Zhu Bing thinks reading is of little help to the visually impaired |
D.Cheng Donghao began to read books of the BLC at primary school |
3 . It’s been over a year since COVID-19 first appeared and the virus continues to be a problem in many parts of the world,scientists have realized the development of vaccines (疫苗) is a solution to the pandemic. A global effort to vaccinate as many people as possible would be needed, since vaccines typically take years to develop.
On Dec 2, 2020, the first COVID vaccine, the Pfizer vaccine, was approved (批准) by UK health department. However, these vaccines must be stored at very low temperatures, which is not possible everywhere. In response, Chinese companies like Sinopharm and Sinovac have developed vaccines that can be kept at normal temperatures.
Now, vaccines are being rolled out all over the world, with millions of people being vaccinated every day. In China, 285 million vaccine doses (剂量) had been given so far. Meanwhile, the US has given out 247 million doses. The UK now stands at 50 million doses.
Although there have been rumors about vaccines being unsafe, most of people seem to realize the importance of vaccination for building mass immunity (群体免疫) in order to stop the virus from spreading. The world has come to understand that the vaccines will protect us. Therefore, sharing vaccines has become a key factor of staying safe and healthy worldwide.
Unfortunately, not everyone can get the vaccine yet. Children below the age of 16 can’t be vaccinated because they have not yet been tested on them. Those who have a history of vaccine allergies (过敏) shouldn’t get it, either.
根据短文内容,选择最佳答案。
1. The vaccine developed by ________ cannot be stored at normal temperatures.
A.UK health department | B.Sinopharm |
C.Sinovac | D.Pfizer |
A.50 | B.247 | C.285 | D.582 |
A.谎言 | B.谣言 | C.建议 | D.骗局 |
A.build mass immunity | B.share the vaccines |
C.develop vaccines quickly | D.get everyone vaccinated |
A.children | B.companies | C.vaccines | D.experts |
4 .
Topic | 4G | 5G |
Speed | 4G takes about 100 to 200 milliseconds(毫秒) to send and receive information. | 5G will help cut down the time to 1 milli-second or less. |
Amusement | We can just experience the VR games in special places once in a while. | VR games will become more common and exciting with 5G. |
Traffic | Most people can’t trust self-driving in 4G because of unexpected problems. | 5G will make self-driving cars have much faster reaction(反应) than 4G. |
Smart Homes | Just a small part of the house has Blue-tooth to connect in 4G. | In smart homes, your home machines can start working ahead of time. |
5G will not only make our network faster, but change many things in our lives. Although not everyone can use 5G now, China is trying its best to let everyone use 5G as soon as possible. |
1. When did people use 5G in China?
A.On May 30th, 2019. | B.In June, 2019. | C.In June, 2020. | D.Doesn’t know. |
A.5G is about 100-200 times faster. | B.5G is about 10 times faster. |
C.4G is as fast as 5G. | D.The passage doesn’t mention it. |
A.trust self-driving in 4G totally | B.use self-driving cars more safely in 5G |
C.use Bluetooth to connect everything in 4G | D.make your home machines work ahead of time in 4G |
A.Huawei helped the BBC use 5G for the first time in the world! |
B.5G can not make VR games more exciting than 4G. |
C.5G will change everything in our lives. |
D.Everyone can use 5G in China now. |
A.an art book | B.a science fiction | C.a technology magazine | D.a sports newspaper |
5 . Hello,boys and girls!My name is Alice. I am eighteen years old. I am in Beijing now. And I'm a shop assistant at Mr.Green's Store. Now let me tell you something about the store.The store is big and tidy. On the first floor,we sell clothes for girls. The sweaters in blue,white,black and red are only 99 yuan. We have socks in all colors. They're only 10 yuan for two pairs. How much are our skirts?Only 86 yuan!
If you are a boy,you can go to the second floor. Look at those hats. Do you like them?They are only 40 yuan. Are you fat?We have some big jackets for you. They are 166 yuan. We have some shorts,too. They are only 50 yuan.
If you like sports,you can go to the third floor. We sell basketballs,soccer balls and tennis rackets on sale. The basketball is 88 yuan. The soccer ball is 68 yuan. And the tennis rackets are 50 yuan.
What do you need?Come to Mr. Green's Store now!
1. The underlined words“shop assistant”mean“________”in Chinese.A.护士 | B.警察 | C.售货员 | D.清洁工 |
A.black | B.purple | C.red | D.white |
A.clothes and sports things | B.fruit and vegetables |
C.vegetables and clothes | D.sports things and fruit |
A.55 | B.149 | C.104 | D.154 |
A.Mr.Green's Store has two floors. | B.Linda can buy a sweater on the second floor. |
C.Mr.Green's Store has shorts only for fat boys. | D.Jack can buy a soccer ball with 68 yuan. |
“The first question people ask at a new place is ‘Is there WI-FI’ because Internet service fees are so high,” said Premier Li.According to a recent survey by CCTV, the average cost of 1GB mobile Internet data per month in China is 100 Yuan, while it is only 60 Yuan in the US and 40 in Japan.
However, high prices don’t necessarily mean good service.The average Internet speed in China was 4.25Mbps(兆比特每秒)in late 2014.South Korea had the fastest average Internet speed-25.3 Mbps.People can download a 1 GB movie within 6 minutes in South Koreas, but in China it would take half an hour.
To improve Internet services, the key is to build more fiber(光纤) networks.Through them we can send text, pictures and videos globally in less than a second, which offer high speed Internet.Besides, the lack of market competition is another problems
根据材料内容,选择最佳答案。
1. Why do people always ask for WI-FI at a new place in China?
A.Because they can’t use Internet without WI-FI. |
B.Because they can communicate with their families. |
C.Because they want to download movies. |
D.Because Internet service fees are too high. |
A.China | B.USA | C.Japan | D.South Korea |
A.To increase Internet service fees. |
B.To build more fiber networks. |
C.To learn from South Korea. |
D.To make the government know the situation. |
A.China’s high Internet fees are probably because there is no more market competition. |
B.China has too many tele-communication companies. |
C.China Unicom should lower the price. |
D.China Telecom should lower the price. |
A.China’s Internet Economy. |
B.Shopping Online. |
C.China Wants Cheaper, Quicker Internet. |
D.China Unicom and China Telecom |