Not only is sleep necessary for your body, it’s important for your brain, too.______kids between 13 and 20 get about 8 hours a night,______experts agree that some kids need more than others. When your body doesn’t have enough hours to______, you may feel______or crazy, or you may be unable to think clearly. You______have a hard time following directions, or you might have an argument with a friend over______really silly. A school task that’s normally easy may feel______, or you may feel it hard to play your favorite sport or instrument.
One more reason to get enough sleep: If you don’t, you may not grow______. That’s right. Researchers believe too little sleep can______growth and your immune system(免疫系统), which______you from getting sick.
1.A. Many B. Most C. Some D. Any
2.A. but B. and C. so D. or
3.A. work B. job C. rest D. food
4.A. happy B. excited C. tired D. relaxed
5.A. must B. will C. can D. might
6.A. things B. something C. everything D. somebody
7.A. worried B. surprised C. impossible D. possible
8.A. as well B. too fast C. all along D. by yourself
9.A. change B. realize C. affect D. increase
10.A. helps B. teaches C. tells D. keeps
Debby dreamed about the house faced the sea. She planned to visit it.
A. where B. who C. which D. what
I am used to the city life, I enjoy the weekends in the countryside.
A. Although B. As C. Unless D. Until
The sunshine is so bright and hot. Why not your sunglasses?
A. put on B. take off C. wearing D. putting on
My parents for Hainan to attend an international meeting yesterday.
A. put off B. fell off C. set off D. kept off
Have you decided Chinese folk music as a course? Well, it’s a good idea.
A. take B. taken C. taking D. to take