Cellphones, tablets, and computers are keeping children and teenagers awake at night-even when they' re not in use, according to new research. A study published on Monday in JAMA Pediatrics says that media devices are causing kids to sleep less and reducing the quality of sleep that they get. This leads to trouble of staying awake the next day.

Researchers analyzed hundreds of studies of children and teens aged 6-19. The scientists found a strong and consistent association between the use of technology at bedtime and poor sleeping. The reason is not just that kids are staying up too late with their devices. Using a computer can overstimulate the mind and emotions, the researchers say. A smartphone or tablet also gives off a light that affects the body's natural timing. These factors contribute to poor quality sleep. And many kids could be at risk. According to the study,72% of all children and 89% of adolescents have at least one device in their sleep environment. Most of these devices are used near bedtime.

"The harmful association between screen-based devices and kids' sleep is a major public health concern," the study concludes. In their conclusion, the researchers urge parents to understand the damaging influence of device use before sleep.

【小题1】What do the researchers disagree with?

A．Children even in dreams can be influenced by media devices.

B．Most adolescents like to play media devices before sleep.

C．Using media devices on bed makes kids sleep difficultly.

D．Using media devices can not excite the mind and emotions.

【小题2】How does a smartphone affect a child's sleep?

A．By making noises.

B．By giving off a light.

C．By attracting a kid's attention.

D．By sending out electronic waves.

【小题3】What can we learn from the second paragraph?

A．Media devices anytime put kids in danger.

B．Adolescents are more easily affected than children by phones.

C．Using technology at bedtime causes poor sleeping.

D．Media devices affect kid's performance at school.

【小题4】Whom does this article most probably writes to？

A．Scientists.	B．Parents.
C．Children.	D．Producers.

短文改错

The news which the English examination will be reformed has caused a big“earthquake”in our country.  Many people, included students, are for it. But there is also some people who are against it. Personal, I think the reform had both advantages and disadvantages. On the one hand, it can reduce students' learning burden and enable English to return back to its true function. On the other hand, it will cause students to spend less time study English and attach less importance to English. If so, students will not have good knowledge of English. What's more, if students don't have so a good ability, they will not be able to broaden our horizons and meet the future challenges.

短文改错
Dear Editor,

I’m writing to tell you about discussion we recently had about if it is good or not for families to own cars.

As the development of people’s living conditions, more and more people have our own cars. Some of us think it’s good to own a car. Firstly, it’s a convenient, fast, and comfortable mean of transportation. Secondly, it shows that people are becoming richer, and the country much strong. It also makes relative businesses and industries to develop faster.

Others have different opinions. They think that cars give off waste gases and polluted the environment. Too many cars will have some bad effects, such as more accidents. Beside, the limited parking space is another big problem.

In my view, people should think careful before they buy a car.

Yours truly,

Li Hua

   Pop stars today enjoy what once only belonged to royalty. Wherever they go, people turn out in their thousands to greet them. The crowds go wild trying to catch a brief glimpse of their smiling, or colorfully dressed idols. The stars are transported by Rolls- Royces, private helicopters or executive aeroplanes. They are surrounded by managers,press agents and bodyguards. Photographs of them appear regularly in the press and all their comings and goings are reported. If they enjoy many of the privileges of royalty, they certainly share many of the inconveniences as well. They are no longer private individuals, but public property. The financial rewards they receive for this sacrifice cannot be calculated, for their rates of pay are great.
And why not? Society has always rewarded its top entertainers generously. The great days of Hollywood have become legendary:famous stars enjoy fame, wealth and adulation(奉承). According to today's standards, the excesses of Hollywood do not seem quite so surprising. A single record nowadays may earn much more in royalties(版税) than the films of the past ever did. The competition for the title"Top of the Pops"is fierce, and the rewards are truly huge.
It is only right that the stars should be paid in this way. Don't the top men in industry earn enormous salaries for the service they perform to their companies and their countries? Pop stars earn vast sums in foreign currency-often more than large industrial companies-and the taxman can only be grateful for their massive annual contributions to the exchequer(国库). So who would begrudge them their rewards?
It's all very well for people in boring jobs to complain about the successes and rewards of others. People who make envious remarks should remember that the most famous stars represent only the tip of the iceberg. For every famous star, there are hundreds of people struggling to earn a living. A man working in a steady job and looking forward to a pension at the end of it has no right to expect very high rewards. He has chosen security and peace of mind, so there will always be a limit to what he can earn. But a man who attempts to become a star is taking enormous risks. He knows at the very beginning that only a handful of competitors can get to the very top. He knows that years of concentrated effort may be rewarded with complete failure. But he knows, too, that the rewards for success are very high indeed: they are the payback for the huge risks involved and once he makes it, he will certainly earn them. That's the essence of private enterprise.
【小题1】The underlined word "begrudge"in the third paragraph is closest in meaning to "________".

A．be jealous of	B．be satisfied with
C．be anxious about	D．be crazy about

【小题2】According to the passage, which of the following can match the view of the author?

A．He who laughs last laughs best.

B．Nothing ventured, nothing gained.

C．He who makes no mistakes makes nothing.

D．Success belongs to the persevering.

【小题3】The author holds a(n) ______ attitude towards the high income of pop stars.

A．critical	B．indifferent
C．optimistic	D．supportive

【小题4】Which of the following is true according to the passage?

A．People are blind in idolizing stars.

B．There is fierce competition in becoming pop stars.

C．The government taxes pop stars very little.

D．Pop stars' life is more luxurious than that of royalty.

   Parents and teens have long been warned that not getting enough sleep can be unhealthy. However, with the demands of schoolwork, activities and family responsibilities teens often don’t spend enough time on sleep. According to one study, only 15% of teens are getting 8-10 hours of sleep a night they need to function best.

High school English teacher and writer Emily Genser says, “My kids are always asking for nap time! Their lives at home are very stressful. I would be more likely to push for later start times for high school students. They would benefit from another hour of sleep.” Not enough sleep is not only bad for teens’ health, but it can also wreak havoc with their academic (学业的) and athletic performance. It is found that not enough sleep can be linked with drinking, smoking and drug use.

Some high schools are trying a different way. They are allowing tired teens to take a nap in school during the school day in specially designed Energy Pods or just allowing them to spend time in a “quiet room” where technology and conversation are banned. Schools say that a little rest during a packed school day helps students face mounting pressure to get into college.

Because students who sleep better do better and not all of our schools offer nap time, here are some suggestions to help our teens get the sleep they need:

▲Just like in earlier childhood, parents should create a calm atmosphere in the house at bedtime.

▲Encourage a relaxing, regular routine (常规) before bedtime which gives them an opportunity to relax.

▲Persuade them to avoid caffeine after 4 pm.

▲If they do nap, tell them to keep daytime naps less than an hour.

▲Teach them that alcohol and nicotine not only damage their health, but affect their sleep.

▲Show them how regular exercise and a healthy diet promote (促进) good sleep.

【小题1】What does Paragraph 1 mainly want to show?

A．Today’s teens are under too much pressure.

B．Not getting enough sleep harms teens’ health.

C．Today’s teens generally don’t get enough sleep.

D．Teenage students should be helped to function best.

【小题2】What does the underlined part “wreak havoc with” in Paragraph 2 mean?

A．do great harm to	B．get along with
C．take the place of	D．make a contribution to

【小题3】Why are Energy Pods created for students at some schools?

A．To reduce students’ pressure.	B．To help students get refreshed.
C．To prevent students from talking.	D．To reduce the usage of technology.

【小题4】What should parents do according to the last part of the text?

A．Create a calm atmosphere the whole day.

B．Prevent their children from drinking coffee all the time.

C．Encourage exercise and healthy eating at home.

D．Make sure their teens nap for at least an hour daily.