题目内容

【题目】—You look worried. You’d better __________ your problem with others.

—Oh, yes. __________ a problem is like cutting it in half.

A.share; SharingB.sharing; To shareC.to share; To shareD.share; Shared

【答案】A

【解析】

句意:---你看起来很忧虑。你最好和别人分享你的问题。-----哦,是的。分享一个问题就像把它切成两半。考查固定句型和动名词做主语。短语had better do sth:最好做某事。第二空是动名词作主语。结合句意可知填share; Sharing;选A。

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相关题目

【题目】阅读下面短文,根据短文内容回答问题。

During the Spring Festival, people enjoy not only reuniting(相聚)with their family, but also tasting the delicious food.

Dumplings

With a history of nearly 2,000 years, dumplings are the most popular traditional food in China. They’re indispensable(不可缺少的)on Chinese New Year’s Eve dinner tables, especially in the north. The food is usually made before noon on New Year’s Eve and eaten at midnight. Sometimes, people put coins or nuts inside to make lucky dumplings.

Yuanxiao

The custom of eating yuanxiao was first recorded in the Song Dynasty. At that time, people in Mingzhou-known today as Ningbo-created the food. They made different kinds of fillings, rolled them into balls, and then boiled them in a pot.

Rice cakes

During the Spring Festival, many people eat rice cakes, which symbolizes(象征)the idea that life is improving year by year.

Other traditional Spring Festival food

If you go to Guangxi you can see people enjoy eating zongzi during the Spring Festival. Eight-treasure rice, or babao fan in Chinese, is an indispensable food for people in Shanghai on Chinese New Year’s Eve. It represents reunion, good luck and health.

1When do people usually make dumplings?

__________________________________________________________________

2Was the custom of eating yuanxiao first recorded in the Song Dynasty?

__________________________________________________________________

3What does eating rice cakes symbolize?

__________________________________________________________________

4Where can we see people enjoy eating zongzi during the Spring festival?

__________________________________________________________________

5What is the passage mainly about?

__________________________________________________________________

【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(……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."

1When 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

2What 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.

3Which 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

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