题目内容

【题目】The outbreak we are battling is our common enemy. All must work together to________ a strongest global network of control and treatment that the world has ever seen.

A.doB.makeC.changeD.build

【答案】D

【解析】

句意：我们正在抗击的疫情是我们的共同敌人。所有国家必须共同努力，建立一个世界上前所未有的最强大的全球网络控制和治疗。

考查动词。do做；make成为；change改变；build建立；根据“a strongest global network of control and treatment”可知最强大的控制和治疗全球网络，可推测出此处是“建立”，故选D。

练习册系列答案
相关题目

【题目】阅读短文，从原文的每一行中找出一处错误并改正，不加词，不删词。

（例如：Lily always go to school on foot. go-goes）

Jane’s teacher told him to collect the notebooks in the classroom 【1】

and bring it to the office. Jane collected the notebooks and rushed into 【2】

the office without knock on the door. The teacher said,” Jane, you 【3】

have bad manner; you should knock on the door before coming in.” 【4】

Jane was a top student but was too proud for herself. She didn’t say sorry 【5】

and left the office. In the evening, she complains to her father about 【6】

that had happened to her at school. The father said she had 【7】

done anything wrong and he told Jane to apologize (道歉）to her teacher. 【8】

A next day, Jane went to the office and told her teacher that 【9】

it was wrong of her to be impolitely to the teacher. 【10】

【题目】As a teacher, I chose those classical songs I listened to ________ my students these days.

A.relaxB.relaxingC.to relaxD.relaxed

【题目】—I went to see you yesterday evening. But you weren't in. Where were you then?

—I __________a walk in a park with my husband at that time.

A.hadB.haveC.was havingD.am having

【题目】 A 14-year-old Chinese boy Sun Yixiao was 【1】 his way home last Tuesday evening after school. When he was in the lift, it suddenly stopped. Feeling scared at first, the teenager decided to help 【2】 out. Sun tried to open the lift door, but he gave up the idea later and leaned against the wall, because he thought the 【3】 may fall down suddenly. He then pressed all the buttons in the hope of getting the lift work again, 【4】 it didn't work. Sun then pressed the "stop" button to lock the lift to 【5】 sure it would not fall. Without a cellphone at hand, Sun tried shouting 【6】 to get the attention of people outside, but no one answered as time went by. The young boy didn't give up 【7】 . He sent a note through the door with the message and hoped someone would 【8】 it up and help him out. After doing all these, the boy knew it might take a 【9】 time before someone found him. So he decided to do his homework. Soon after he finished his homework, he was saved at last.

On Weibo, many netizens (网民) spoke highly of the boy, because he could keep calm in the face of such 【10】 dangerous situation. We should learn from him.

【题目】

for,way,you,seem，lose,tell,real,clear,be,healthy

All girls are beautiful

How much should a girl weigh? When I think about this question，I feel confused(困惑的). It all started when I was【1】 to lose weight by my close friend. It is quite an embar-rassing thing for me to mention my weight and height here，but in order to make it much【2】 for you，I can tell you that my weight is 57 kg and my height is 164 cm. I think this is actually just the right weight【3】 me. I don’t remember ever being thin before in my life，maybe I have【4】 like this since 10 years ago. But I don’t feel bad about it and I never think that I need to lose weight.

But it【5】 that many people think every girl who is around my height should weigh less than 50 kg. As a result，lots of girls are trying to lose weight in different【6】 ，such as by taking medicine or exercising. Some girls have lost their confidence because they think they are too fat and not beautiful.

It’s【7】 understandable for people to want to be more attractive. But we have to take care of our【8】 as well. 【9】 weight is a long process and as a student，you might not have enough time to do it. I want to tell all the girls out there that they are beautiful and that it doesn’t matter how much they weigh. You can be anyone you want and wear anything you want. Just be【10】.

【题目】

skills couldn't surprised deaf paid when communicate than better although

A boy named Reggie was well-known in his hometown because he couldn't hear anything. He was born【1】. Although people liked him a lot, they also treated him more differently 【2】other people.

However, this year, people got to understand Reggie a little【3】. On Reggie's birthday, everyone in town would wear earplugs (耳塞) so that they【4】hear anything either. People became aware of how difficult life could be【5】you can't hear anything. They also learned that Reggie had some amazing【6】.

On that day, people【7】more attention to the things he said. They were also【8】by his intelligence, creativity, and his ability to find a solution to nearly any problem or challenge that he faced. They realized that he had always been like that, and that he simply needed to【9】with others in a different way. He was really just like any other little boy.

On that day, people came to know Reggie's true nature. They learned that【10】most of us are different from each other- sometimes in big ways- we are still mostly the same in our hearts and minds.

【题目】—I have never forgotten the song “My heart will go on”.

—Neither have I. The words of the song are still ________ in my mind.

A.educationalB.presentC.creativeD.traditional

【题目】 We take showers and use the toilet every day to get rid of badly waste. Our brains also need to take a bath every day. How can they do it?

A 2013 study found the answer. Researchers at the LS University of Rochester studied the brains of mice and discovered that they cleaned themselves while the mice slept. A kind of fluid in the brain, called cerebral spinal fluid (CSF, 脑脊液), was found to increase dramatically (显著地) during sleep, washing away waste proteins that had been building up between brain cells in waking hours.

"This study shows that the brain has different functional stales when asleep and when awake," Maiken Nedergaard, the lead researcher, told NBC News. It also explains why we can't seem to think clearly after a sleepless night while a good night's sleep leaves us feeling sharp and refreshed.

Now a new study, published on Oct 31 in Science, digs a little deeper into our brains' self-cleaning procedure. Instead of mice, this time humans were the test subjects.

Researchers at Boston University, US, monitored (监测) the brain waves of 13 healthy adults who were sleeping, using accelerated MRI, which is capable of recording faster changes inside the brain than a regular MRI machine. They found that every 20 seconds, blood flowed out of the brain, making room for a large amount of CSF to come in and "clean". This cycle coincided with(与……一致) the rhythm of the brain's slow waves-an electrical activity that happens when we're in deep sleep.

It's still unknown how these brain activities are connected. But the mere fact that they are connected is exciting enough, since it allows researchers to piece together (拼凑出) possible new explanations for misunderstood diseases.

For example, slow-wave sleep has been proven to play a role in strengthening our memories. This may explain why people with Alzheimer's often have fewer and weaker slow brainwaves. Based on this new study, there could be one more explanation for diseased brains: They are not clean.

Nedergaard, leader of the 2013 study, is also excited about the new findings. "Maybe the most important take-home message is that sleep is a serious thing," she told Scientific American. "You really need to sleep to keep a healthy brain because it links electrical activity to a practical 'housekeeping' function."

【1】When the researchers studied the brains of mice, they found __________.

A.CSF in their brains went down when the mice slept

B.CSF carried away waste proteins in their brain during sleep

C.more waste proteins were produced in their brains when asleep

D.the more CSF was in their brains, the fewer waste proteins were

【2】What did the researchers discover when they monitored human brain waves?

A.The rhythm of the brain was slower than that of CSF.

B.The brains worked more slowly when asleep.

C.Brains were cleaned when blood flowed out.

D.It took 20 seconds for CSF to clean brains.

【3】Which of the following would be the best title for the passage?

A.Connecting Brain ActivitiesB.Cleaning in Your Dreams

C.Having a Good SleepD.Explaining Diseases

违法和不良信息举报电话：027-86699610 举报邮箱：58377363@163.com

精英家教网