you’re tired, you’ve been working for hours. [ ]A. If B. Because C. Though D. No wonder 题目和参考答案——青夏教育精英家教网—

Try this: for a whole day, forget about the clock. Eat when you’re hungry and sleep when you’re tired. What do you think will happen?
You may be surprised to find that your day is much like most other days. You’ll probably get hungry when you normally eat and tired when you normally sleep. Even though you don’t know what time it is, your body does.
Inside our bodies are several clocklike systems that follow a 24- hour cycle. Everyone is unique, which is why you might like to stay up late while your sister always wants to go to bed early.
Regularly staying up late can make kids do worse on tests and quizzes. And working shifts at night leads to higher rates of heart disease.
“There is a growing sense that when we eat and when we sleep are important parts of how healthy we are,” says Steven Shea, Director of the Sleep Disorders Research Program at Brigham and Women’s Hospital in Boston.
“During the night, we are prepared to sleep,” Shea says. “During the day, we are prepared to eat and move around, If you reverse ( 颠倒) what you are doing, everything is out of phase. That can have adverse consequences.
【小题1】What does the underlined sentence suggest?

A．We don’t need to care about time.

B．We don’t need the clock.

C．The clock is not useful.

D．The clock is not remembered.

【小题2】What makes some like to stay up late while others go to bed early?

【小题3】Steven Shea suggests ________.

A．when we eat, we are prepared to eat.

B．when we sleep, we are prepared to sleep

C．when we eat and when we sleep are important parts of how healthy we are

D．we are prepared to follow clocklike system

【小题4】“Everything is out of phase.” means________.

A．everything is out of order

B．everything is bad

C．everything is good

D．everything is not controlled

阅读理解

I have a friend called Mark. Last Sunday it was a beautiful day. When it got too hot, Mark rolled up his sleeves. I was very surprised to see that he had a tattoo! Then he told me he has lots of tattoos. He has tattoos on his arms, legs, chest and back. So of course I asked him lots of questions about the tattoos!

“It was ten years ago,” he said, “I remember I was on an island in the middle of the sea. I chose a dolphin tattoo because I wanted to have something about the sea.”

“I liked the idea of doing more designs about the sea. So after the dolphin I had an octopus, and then a starfish. These are on my left leg. Then, over my left arm I had lots of fish swimming together. They took a long time to do. I also have a crab and a lobster too!”

“Most recently I got a mermaid. It was finished two weeks ago. I saw a painting of a beautiful mermaid in a museum. I took a photograph and then decided to get a tattoo. I made the design a little simpler.”

“People ask me if getting a tattoo hurts. It depends. If you feel relaxed then it’s OK. But if you’re tired or nervous then you feel it more. It also depends where on the body the tattoo is done.”

1.Where did the writer find the tattoo?

A. On Mike’s sleeves. B. On Mike’s arms. C. On Mike’s body.

2. When was the mermaid done?

A. Ten years ago. B. Last Sunday. C. Two weeks ago.

3. Where did he get the idea for the beautiful mermaid?

A. From the sea. B. From a painting. C. From the cinema.

4. We can learn from the last paragraph that _______.

A. it’s not good to feel nervous when getting a tattoo

B. people can do anything they like with their tattoos

C. people have different feelings about their tattoos

5. What does “tattoo” mean?

A. 烟草 B. 图片 C. 文身

Do you know why you sleep? You may think it’s because you’re tired. Or perhaps you’ve been told sleep is good for you. Yet no one knows exactly why or how people sleep.

Until the early 1950s, most scientists thought the body and brain rested during sleep. Then a scientist watched people sleep. He noticed that during periods of between 5 and 30 minutes each, sleepers’ eyes made rapid movements, as if they were watching something. He called these periods REM sleep, for Rapid Eye Movement. Periods when sleepers’ eyes did not move he called non-REM sleep.

Whenever the scientist woke people during REM sleep, they were having vivid dreams. Measurements showed that sleepers’ pulses（脉搏）went up quickly during REM sleep. Their breathing, heartbeat, and the blood going to the brain also increased. Far from being a time of rest, REM sleep is a time when the body is hard at work. Scientists still don’t know the reason for this. Some believe REM sleep makes learning easier. Babies spend a lot of time in REM sleep. Because of this, some scientists believe that REM sleep helps the brain grow. Others think REM sleep is a time for the brain to empty the day’s garbage.

One thing all the scientists agree on is that sleep is necessary. Without enough sleep, people make mistakes. Most major car accidents happen during the early morning hours, when people are sleepiest.

1.During REM sleep, a person’s breathing and heartbeat ________.

A．stop B．increase C．decrease D．stay the same

2.Which word in paragraph（段落）3 means “colorful and lively”?

A．easier B．empty C．vivid D．quickly

3.Which paragraph tells what happens when people don’t get enough sleep?

A．1 B．2 C．3 D．4

4.What is the main idea of the article?

A．REM sleep helps the brain grow.

B．REM sleep has been watched and recorded by scientists.

C．REM sleep is a time to empty the day’s garbage.

D．REM sleep is an active time when the body is hard at work.

5.You can decide from the article that REM sleep ________.

A．has a restful effect on people

B．can be avoided with lots of sleep

C．is something that all people experience

D．is something that all scientists agree on

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