Itisnotunusualtoseeyourdeskmateyawn(打呵欠)ashecomplainsth...

问题详情：

It is not unusual to see your deskmate yawn (打呵欠) as he complains that he didn’t have a good sleep the night before. Many teens don’t get enough sleep because they have too much homework，which keeps them up at night. Some teens cannot sleep at night even when they want to.

Studies show that during your teenage years，the body’s biological clock is reset，telling you to sleep later at night and wake up later in the morning.

But changes in the body clock aren’t the only reason teens lose sleep. Lots of people have insomnia (失眠)．The most common cause of insomnia is stress. But all sorts of things can lead to e include physical discomfort，emotional troubles and even sleeping environment. It’s common for everyone to have insomnia from time to time. But if it lasts for a month or more go and see a doctor.

Some people have a condition that causes stomach acid (*) to move backward towards the produces the uncomfortable, burning feeling called heartburn. So even if the person doesn’t notice the feelings of heartburn because he is sleeping，he may feel tired the next day.

Most teens have nightmares（噩梦） sometimes. But，if they are frequent，a person’s sleep pattern can be seriously affected. The most common cause of nightmares is emotional problems，such as stress (压力) or you have them a lot，it’s a good idea to talk to a doctor.

Doctors encourage teens to make lifestyle changes to develop good sleeping probably know that coffee can keep you awake，but did you know that playing video games or watching TV does the same?

25．The main idea of the first paragraph is ________.

A．teenagers can’t get enough sleep at all               B．sleeping problems have different causes

C．yawning is a good way to get rid of sleep          D．teenagers care too much for homework

26．The teenagers’ biological clock ________.

A．easily makes teenagers lead to insomnia             B．is the origin of their insomnia

C．provides them with plenty of time at night         D．is helpful to improve their concentration

27．What does the writer say about “nightmares”？

A．It is nothing and shouldn’t be taken seriously.      B．It can release their stress or anxiety.

C．Emotional problems might contribute to nightmares. D．People will suffer from sleep if frequent.

28．Which way can help to get rid of insomnia?

A．Drinking some coffee before going to bed.         B．Playing video games or watching TV often.

C．Turning to a doctor for help.                    D．Eating much medicine for insomnia.

【回答】

AACC

知识点：阅读理解

题型：阅读理解