Question

Sleep is like food for the brain. Enough sleep helps the body and brain grow and develop. According to the National Sleep Foundation in the US, adults need seven to nine hours of sleep every night. For students aged 10 to 17, a healthy amount is about eight to nine hours per night.

But many students don’t get enough sleep because of early school start times and heavy homework. About 80 percent of middle school students don’t get enough sleep, the China Youth and Children Research Center reported. For some students, they want to sleep early, but they keep worrying about their schoolwork and can’t fall asleep quickly. For others, they may even have insomnia which might keep them awake all night.

These sleeping problems greatly affect people’s lives. Experts have shown that lack of sleep for teenagers leads to poor grades. Students without enough sleep cannot pay attention in class or do well in sports. Also, the lack of sleep may make them depressed (沮丧的).

Luckily, with good sleep habits, it is easier to fall asleep. Some of these good habits include avoiding drinks that make people excited late in the day, going to sleep at the same time each night, and sleeping in a comfortable place that is dark, quiet, and neither too warm nor too cold.

1.If Li Hong is 15years old, how much sleep does she need every night?

A. 10-12 hours.               B. 8-9 hours.

C. 7-8 hours.                 D. Less than 7 hours.

2.______ if teens don’t get enough sleep?

A. They might do well in sports.

B. Their bodies and brains might grow better.

C. They might feel upset.

D. They might not be able to finish their schoolwork.

3.The underlined word “insomnia” means “_______” in Chinese.

A. 健忘症                   B. 肥胖症

C. 多动症                   D. 失眠症

4.Which of the following are good sleeping habits?

A. a and b         B. a and c

C. b and c         D. b and d

a. Sleeping in a bright place.

b. Going to bed at the same time.

c. Sleeping in a dark and quiet place.

d. Drinking something that makes you excited.

Answer

1.B

2.C

3.D

4.C

【解析】

试题分析：短文大意：睡眠就像大脑的食物。充足的睡眠有助于身体和大脑生长发育。该短文主要谈论了人们的睡眠问题，并对如何提高睡眠质量提出了具体建议。

1.B细节理解题。根据第一段中For students aged 10 to 17, a healthy amount is about eight to nine hours per night.可知10岁至17岁的学生大约每晚该睡8到9个小时。所以选B。

2.C细节理解题。根据第三段中Experts have shown that lack of sleep for teenagers leads to poor grades. Students without enough sleep cannot pay attention in class or do well in sports. Also, the lack of sleep may make them depressed (沮丧的)可知专家表明青少年缺乏睡眠会导致成绩差。学生没有足够的睡眠不能在课堂上或运动时注意集中力,睡眠不足还可能使他们沮丧，所以选C。

3.D词义猜测题。根据划线词后的定语从句which might keep them awake all night可知该词的意思是“失眠症”，所以选D。

4.细节理解题。根据最后一段中Some of these good habits include avoiding drinks that make people excited late in the day, going to sleep at the same time each night, and sleeping in a comfortable place that is dark, quiet, and neither too warm nor too cold.可知好的睡眠习惯包括避免晚些时候喝使人兴奋的饮料,每晚在同一时间睡觉,睡在一个舒适的黑暗,安静,既不太热也不太冷的地方。所以选C。

考点：健康保健类阅读。