题目内容：

The weekend is here! You can sleep longer(更长) and get up later(更晚) than usual(比平时). But is it a good idea to sleep longer during weekends?

Scientists(科学家) from the United States said this habit(习惯) is bad for your health and can make you gain weight(增加体重).

According to sleep expert(专家) Vsevolod Polotsky, sleeping longer during weekends isn’t good for you. You might feel like you’re catching up on sleep. But if you still sleep poorly during weekdays, you will feel hungry more(更加;更多) often. You might eat more and gain some weight.

Also, sleeping more during weekends can change your biological clock(生物钟). If you get up late on the weekend, you might eat breakfast, lunch and dinner later than usual. Eating later in the day can also cause you to gain weight.

1.The article tells us that it _______ sleep longer and get up later than usual at the weekend.

A. is a good idea to B. is a bad idea to

C. doesn’t matter(无所谓) if D. is a good way to be healthy to

2.Polotsky ________ .

A. is a sleep expert B. likes sleeping

C. sleeps when he works D. doesn’t like sleeping

3.________ can change your biological clock.

A. Sleeping during weekends B. Sleeping during weekdays

C. Sleeping more during weekends D. Sleeping the same during weekends

4.This passage gives us _______ reasons why we might gain some weight when we sleep more during the weekends..

A. One B. two C. three D. four

5.The best title of the article is _______.

A. Sleep at the weekends is bad. B. What is the right time to sleep?

C. Sleep at the weekend is good. D. Too much sleep at the weekends is bad.