【题目】 Is sleep important for children? A new study says yes.

In America, most people don't get enough sleep. Children aged 5 to 12 are advised to sleep 10 to 11 hours every night, but most of them can't sleep that long. A study found that about 41 million American workers got less than six hours of sleep every night. Scientists worry that parents are passing their poor sleeping habits down to their children.

In the study, Reut Gruber and some other scientists either added or reduced(减少) one hour of sleep for healthy children aged 7 to 11. They watched the children for five nights. They wanted to know if the amount of sleep can affect(影响) a child's behavior.

Before the study began, students were asked to sleep the same amount of hours as usual. Their teachers were asked to record their behavior. After changing the children's sleep for five nights, the teachers had to record again. According to the two records, scientists found that those who slept one hour less behaved worse than those who slept one hour more. Students with less sleep were more likely(可能的) to feel sad and had more problems paying attention.

The scientists chose to study children in their homes instead of in a laboratory, because they wanted to find out how everyday changes might affect children's behavior at school. "In the study, nobody became a talent, and nobody became crazy. But small changes in children can really make a big difference," says Gruber.

根据短文内容,完成下列小题。

1According to scientists, what may cause children to sleep less?

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2Why did scientists do the new study?

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3Who helped do some records in the new study?

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4Who did the scientists find behaved better in the new study?

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5Was the study done in a laboratory?

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【题目】短文54

Ways to Increase Your Confidence

There are some ways you can use to increase your self-confidence. Some of them you'll need to practice a lot before they start to work. It's like playing the guitar or soccer. They might not work too well the first or second time you try them. But as you do them, you build a deeper confidence in yourself.

1

Exercise will improve your confidence and your way of looking at life. Plus, being healthy and looking better can also help you feel more confident.

Create something.

Everyone is a creative(有创造力的) person. Rediscovering your creativity is a good way to improve your confidence in yourself. Creating something is a wonderful but not always easy experience. But when you're done, you not only feel good about yourself. 2

Use your body.

If you start to walk fast you'll soon start to feel nervous. If you start to walk slower you'll soon start to feel more relaxed. To feel more confident, use your body in a more confident way. 3 Learn how confident people around you or on the TV use their bodies.

Compare yourself to yourself.

This will take away a lot of unnecessary pain in your life. 4 Compare yourself to yourself. Improve yourself and see how you grow and become a more successful, more confident and happier person.

A. Take exercise.

B. Take it into the future.

C. Walk, sit, stand and move in a more confident way.

D. Sometimes you will also discover new parts of yourself.

E. Pay attention to yourself, not the other people around you.

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