If we cannot reach an on the program. we will have to vote.A．agreement B．developmentC．treatment D．improvement 题目和参考答案——青夏教育精英家教网—

题目内容

If we cannot reach an ________ on the program， we will have to vote.

A．agreement B．development

C．treatment D．improvement

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相关题目

It is easy for those students _________ that river to school.

A. cross B. to cross C. across

— The Dragon Boat races are so exciting， but our boat is still behind.

— Don’t worry. I am sure our team will win!

A. if B. that

C. whether D. why

阅读理解。

Do you sometimes find you want to eat chocolate or ice cream very much? Do you then make it but feel guilty about it later?

The next time this happens to you， think back if you have had enough sleep over the last 3-5 days. Many adults and even teens have noticed that they crave "midnight snacks" when working or watching TV late.

New research shows that lack of sleep could lead us to have an increased appetite (食欲)- especially for the unhealthy kind.

Recently， researchers at the University of Chicago carried out a study that clearly shows that a lack of sleep actually changes our brain chemistry! Studies were done on two control groups over four days. Both groups had their food and sleep strictly controlled. All of them received three meals. The only difference was that one group was allowed to sleep for 7.5 hours while the other group slept for a little more than four hours.

During the following visit， their sleep patterns were exchanged. After the last night of the session， the volunteers were offered as much food as they wanted to eat. Researchers noticed that in both sessions， people who sleep less ate on an average 300 calories more than those who had slept more. This was much more calories than what their bodies would need to make up for the three fewer hours of sleep.

What Is Going On?

The researchers then analyzed the chemicals (化学成分) in the blood of the people in the study. What they noticed was surprising. High levels of ghrelin (a chemical that makes us hungry) and lower levels of leptin (the chemical that tells the brain that it is satisfied) were found in the people with less sleep.

Even more surprising was that this group had higher levels of endocannabinoids - the same chemical that is caused by drugs such as cannabis (大麻). The endocannabinoid system causes a craving for sugar and fatty foods and leads to overeating even when the body is not hungry. This study suggests that sleep changes help produce chemicals in the body that are similar to taking drugs!

Furthermore， researchers noticed that food cravings continued for a long period of time， well after the lack of sleep. This increases the risk of over-eating for longer periods， leading to obesity (肥胖).

Your body needs 7-8 hours of sleep each night. So， the next time you reach for a bag of chips or a slice of decadent cake， think of the amount of sleep you have had recently!

1.According to the passage， people want to eat more when they ________.

A．work B．watch TV

C．sleep less D．sleep more

2.The word ‘crave’ in paragraph 2 most probably means ________.

A．hope B．want

C．hate D．dislike

3.From the passage， we can learn that ________.

A．people feel guilty about eating chocolate

B．unhealthy food makes people sleep less and less

C．a person’s sleep has nothing to do with his/her appetite

D．a study about sleep and obesity was carried out at the University of Chicago

4.The chemical that makes us feel hungry is called ________.

A．ghrelin B．leptim

C．cannabis D．endocannabinoids

5.This article is mainly about ________.

A．researchers working on people’s sleep

B．how people’s sleep influences their appetite

C．how much people need to eat after sleeping less

D．A research about chemicals in the blood of people

— Why is Sandy absent from school today?

—He is in hospital．He hurt ______ when doing DIY at home yesterday．

A．his B．he

C．himself D．him

Seasons in Australia are different from those in the USA. When it is fall in New York， it is _______ in Sydney.

A．summer B．spring

C．autumn D．winter

Many people have to work on the weekend. Some people do not mind. Other people think it is terrible.

One man thinks that working on the weekend can be dangerous. He is Graham Coates. Mr. Coates worked in an office in Brighton, England. On Saturday, May 24, 1986, he went to the office to do some work. When he got in the elevator to go home, it stopped between floors. Mr. Coates could not get out of the elevator. He was trapped(困住了)!He started to shout, but no one heard him. Then Mr. Coates remembered that it was a holiday in England. No one was going to come to work until Tuesday!

There was nothing for Mr. Coates to do. He had to wait and sleep for most of the time.

Early on Tuesday morning, the vice president of the company came to work and found the elevator was not working. When the elevator was opened, Mr. Coates came out, cold, weak and tired. He had been in the elevator for sixty-two hours!

Now Mr. Coates says, “I only use elevators if they have telephones in them.”

根据短文内容，判断下列各句正（T）、误（F）。

1.Mr. Coates could not get out of the elevator because he was weak.

2.He stayed in the elevator from Tuesday to Saturday.

3.He ate and drank in the elevator most of the time.

4.Mr. Coates came out early on Tuesday morning.

5.He says that he will only use elevators with telephones in them.

Who do you like __________, Tom or Jim?

A. good B. better C. best

Mrs. Sun is a friend of ______.

A. Mary’s mother

B. mother of Mary

C. Mary’s mother’s

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