You should develop healthy eating habits it is too late.A. after B. becauseC. before D. while 题目和参考答案——青夏教育精英家教网—

题目内容

You should develop healthy eating habits _______ it is too late.

A. after B. because

C. before D. while

【解析】

试题分析：句意为，你应该趁早养成健康的饮食习惯。after在…之后，because因为，before在…之前，while当…的时候，故选C。

考点：连词辨析

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The students were having their chemistry class. Miss Li was telling the children what water was like. After that, she asked her students,“What's water?”No one spoke for a few minutes. Miss Li asked again, "Why don't you answer my question? Didn’t I tell you what water is like?”

Just then a boy put up his hand and said, “Miss Li, you told us that water has no color and no smell. But where to find such kind of water? The water in the river behind my house is always black and it has bad smell.”Most of the children agreed with him.

“I'm sorry, children.”said the teacher,“Our water is getting dirtier and dirtier. That’s a serious problem.”

根据短文内容，回答问题。

1.Did the teacher tell the students what water is like?

2.What did the teacher tell the students water is like in chemistry class?

3.Why does the water in the river have color and smell?

The weather is getting hotter. You are thirsty playing basketball or riding home from school. A cold drink may be just the thing. But be careful what you are drinking. Something that looks cool may not be good for your health.

There are plenty of "energy drinks" on the market. Most of them have beautiful colors and cool names. The lists on them tell you they are helpful to your health. Sounds great!

But after a careful check you may find that most energy drinks have lots of caffeine (咖啡因) in them. These drinks are especially aimed at young people, students, busy people and sports players. Makers sometimes say their drinks make you better at sports and can keep you awake. But be careful not to drink too much.

Caffeine makes your heart beat fast. Because of this, the International Olympic Committee has limited( 限制) its use. Caffeine in most energy drinks is at least as strong as that in a cup of coffee or tea. Possible health dangers have something to do with energy drinks. Just one box of energy drink can make you nervous, have difficulty sleeping and can even cause heart problems. Scientists say that teenagers should be discouraged from taking drinks with a lot of caffeine in them.

1.Many people like drinking energy drinks because of the following EXCEPT that ________.

A. they have beautiful colors and cool names

B. they have lots of caffeine

C. they can keep them awake and better at sports

D. they are said to be helpful to health

2.he main reason for people not to drink too much energy drinks is that they may cause _____.

A. heart problems

B. nervousness

C. sleeping difficulty

D. possible health dangers

3.The underlined word "discouraged" can be replaced(替换) with "________".

A. encouraged B. stopped

C. helped D. disliked

4.From the passage we can know that _________.

A. advertisements are important in getting people to buy energy drinks

B. energy drinks are helpful to teenagers' study

C. sports players need to drink a lot of energy drinks

D. energy drinks are especially aimed at teenagers

5.Which of the following can be the best title(标题) of the passage?

A. What's the Use of Energy Drinks?

B. Who Can Drink Energy Drinks

C. What's That in Energy Drinks?

D. Why Can't We Buy Energy Drinks?

A:Hello, this is Lucy speaking. Is that Li Wei?

B:Hi, Lucy!1. We are expecting your coming.

A:Thank you! My plane leaves Beijing this afternoon.

B: 2.

A:It’s CA1409.

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A:It arriv es at 6:10, and I’ll have to wait some time for my luggage(行李).

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Oh, the milk ______strange.

A. tastes B. tasted

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—Look, _______ is dancing under the tree.

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World Sleep Day, on 21st March, was created to bring attention to the growing number of sleep problems. Sleep is a natural part of human life, but many people in the modern world don’t realize it’s very important. As a result, sleep problems are quite common.

In 2011, scientists at the University of Athens in Greece did a survey of over 35,000 people in 10 countries around the world, including China, Belgium and South Africa. Among the people, 24 percent said that they did not sleep well, 31.6 percent were diagnosed(诊断) with insomnia(失眠). In addition, 30.7 percent of them have visited doctors for help with sleep problems and 11.6 percent said that they felt very sleepy during the day.

The survey found that many people suffer the effects of poor quality sleep, some examples can’t fall asleep and often wake up in the middle of the night. The main reasons of the problems are pressure(压力) from school or work and a fast pace(节奏) of life, but noise pollution and light pollution also affect sleep and cause poor quality sleep. The survey also found that large numbers of people find it hard to sleep at night. The short term effects of this are tiredness and trouble concentrating(专心). If this happens for a long time, the risk of gaining weight and having a heart attack may increase.

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Getting a good night's sleep is important for everyone. By following the advice above, you can rest better at night and work better during the day.

Have a good sleep
World Sleep Day	World Sleep Day was created to make people understand the__1._of sleep.
A survey by scientists	Of 35 000 people in 10 countries in the world, 24 percent of the people didn’t have a_2.__sleep. 31.6 percent were diagnosed with insomnia. 30.7 percent have __3.__ to a doctor for sleep problems. 11.6 percent of the people feel __4.__ during the day .
__5.__of sleep problems	People feel the pressure from school or work . A fast pace of life_6.__to sleep problems as well. Noise and light pollution also cause poor quality sleep.
__7.__of sleep problems	Some people aren’t able to fall asleep and often wake up at night. Feeling___8._, people find it hard to concentrate. It’s highly possible that sleepless people easily gain weight and have a heart attack.
Ways to__9.__sleep quality	Have regular sleep habits. Make your bedroom cool, dark and quiet Don’t drink anything__10.__ caffeine at bedtime.

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