Question

语篇补全

Do you often feel sleepy in class? Maybe you should move your smartphones and tablets (平板电脑) away from your bed at night.

If kids use electronic devices (电子产品) at bedtime, they may have poor sleep. A new study by BBC found this. A smartphone or a tablet can make you excited.1.The devices also give out a special “blue light”. 2.

According to the study, 89 percent of US teenagers have at least one device near their bed. 3. “Kids should stop looking at electronic devices at least 30 minutes before bedtime,” says the study. 4.You can also keep a diary or drink some milk before sleep. That also helps you sleep better.

A. The blue light stops you from sleeping.

B. Nobody should use the phone before bedtime.

C. This means it will take you much more time to fall asleep.

D. That way, your brain can slow down and get ready for sleep.

E. And most of them use their devices before bedtime.

Answer

1.C

2.A

3.E

4.D

【解析】

本文大意：BBC最新的研究发现智能手机或平板电脑发出的蓝光会让人兴奋。建议孩子们入睡前30分钟停止看电子设备，睡前可以写日记或喝一些牛奶。

1.句意：这意味着你需要更多的时间来入睡。

根据前文“If kids use electronic devices (电子产品) at bedtime, they may have poor sleep. A new study by BBC found this. A smartphone or a tablet can make you excited.”可知，如果孩子睡前使用电子产品，那么会使孩子更兴奋更难入睡。结合选项，故选C。

2.句意：蓝光使你无法入睡。

根据前文“The devices also give out a special “blue light”.”可知，此处在描述“蓝光”对人的影响。结合选项，故选A。

3.句意：大多数人在睡觉前使用电子设备。

根据前文“According to the study, 89 percent of US teenagers have at least one device near their bed.”可知，此处是在说睡前使用电子设备的问题。结合选项，故选E。

4.句意：这样，你的大脑就可以慢下来，准备睡觉。

根据“‘Kids should stop looking at electronic devices at least 30 minutes before bedtime,’ says the study.”可知，如果睡前至少30分钟停止使用电子设备，那么你的大脑就会慢下来，准备睡觉。结合选项，故选D。