CELL phones help us easily find people anywhere at any time. A cell phone can include many things, such as games, music and Internet access. Today, 4.6 billion people around the world have cell phones 题目和参考答案——青夏教育精英家教网—

题目内容

CELL phones help us easily find people anywhere at any time. A cell phone can include many things, such as games, music and Internet access. Today, 4.6 billion people around the world have cell phones, according to CBS News.
    However, cell phones may cause cancer（癌症）, according to the World Health Organization. In a 2010 study, people who used a cell phone for 10 years or more were more than two times as likely to get cancer, according to CNN.
    The following suggestions may help you reduce your risk of cancer:
    1. Use a headset（头带式耳机）or speaker
    Headsets give out much less radiation（辐射）than phones. Some wireless（无线的）headsets give out low-level radiation. However, you should take it off your ear when you’re not talking to anyone. Using your phone with a speaker will also make it safer.
    2. Listen more, talk less

Your phone gives out radiation when you talk or text, but not when you’re listening or getting messages. Listening more and talking less can lower the risk of cancer.
3. Hold the phone away from your body

Hold the phone away from your body when you’re talking, not against your ear. Also, don’t keep it in your pocket.
    4. Choose texting over talking
    Phones emit（发出）less radiation to send texts than to carry a person’s voice. Texting also keeps radiation away from your head.
    5. Poor signal? Stay off the phone
    Fewer signal bars on your phone mean that the phone needs to give out more radiation to work. Make and take calls when your phone has a strong signal.

47. According to CBS News, _____ people all over the world have got cell phones.

A. 460 thousand B. 4.6million C. 4.6 billion D. 46 billion

48. From Paragraph 1, we know that _____.

A. cell phones have three new ways B. people can do nothing without cell phones

C. it’s dangerous to use cell phones too much

D. cell phones help us a lot and many people use them

49. How many suggestions to reduce cancer are mentioned in this passage?

A. Five. B. Four. C. Three. D. Six.

50. The passage mainly talks about ______.

A. the development and advantages of cell phones

B. the reason why cell phone radiation causes cancer

C. the best ways to use cell phones to communicate

D. how to protect ourselves from cell phone radiation

CDCD

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相关题目

It Seemed Like a Good Idea at the Time

I really only meant it as a joke. I wasn't trying to steal anything honestly.
My friend Matthew started bringing his new cell phone to class last week. He was walking around bragging (吹嘘) about it to everyone. He was saying, "My cell phone can download (下载) the newest 41 off the internet."Then he 42everyone by downloading a game and starting to play it. The pictures and sound were really 43 .
44 class, he would use his cell phone to watch TV. The rest of us didn't have a phone like 45 , so we had to crowd around him. I was just trying to see the screen, 46 there were so many other kids that I could not see it clearly. I was getting really jealous (嫉妒).
But then yesterday, he forgot his cell phone at the end of class. He left it right on his desk. 47 noticed it was there except me. I decided to teach him a lesson. I took his phone quietly off the desk, and put it in my own bag. My 48 was to give it back to him the next day. I 49 wanted to see his reaction (反应). Maybe he would stop being such a show-off.
But this morning he rushed into class, screaming and yelling (吼叫). He was very 50 and almost mad. He started accusing (指责) different people of 51 his phone, but I had it in my 52 the whole time. He even started fighting with another classmate 53 Matthew was sure that person had taken it. The teacher sent them to the headmaster's office. They 54 got in a lot of trouble. Now I don't know what to 55 ! If I tell him that I took the cell phone, he'll think I stole it. If I don't tell him, then I really did steal it. How did I get into such a trouble?

I really only meant it as a joke. I wasn't trying to steal anything honestly.
My friend Matthew started bringing his new cell phone to class last week. He was walking around bragging (吹嘘) about it to everyone. He was saying, "My cell phone can download the newest 36 off the Internet."Then he 37 everyone by downloading a game and starting to play it. The pictures and sound were really 38 .
39 class, he would use his cell phone to watch TV. The rest of us didn't have a phone like 40  , so we had to crowd(拥挤) around him. I was just trying to see the screen,  41there were so many other kids that I could not see it clearly. I was getting really jealous.
But then yesterday, he forgot his cell phone at the end of class. He left it right on his desk. 42 noticed it was there except me. I decided to teach him a lesson. I took his phone quietly off the desk, and put it in my own bag. My  43 was to give it back to him the next day. I44 wanted to see his reaction (反应). Maybe he would stop being such a show-off.
But this morning he rushed into class, screaming and yelling (吼叫). He was very 45 and almost mad. He started accusing (指责) different people of 46 his phone, but I had it in my 47 the whole time. He even started fighting with another classmate  48   Matthew was sure that person had taken it. The teacher sent them to the headmaster's office. They 49 got in a lot of trouble. Now I don't know what to 50 ! If I tell him that I took the cell phone, he'll think I stole it. If I don't tell him, then I really did steal it. How did I get into such a trouble?

“When can I get a cell phone?” The answer is when your parents think you need one, though many kids seem to be getting them around age 12 or 13. Some younger kids may have them because their parents see it as a matter of safety and convenience. For example, a kid can call mom and dad when sports practice is over. And a cell phone can give kids almost instant access(快捷通道) to their parents if something goes wrong or they need help. It can give parents quick access to their kids so they can check on them and make sure they’re OK.
If you do get a cell phone, make some rules with your parents, such as how many minutes you’re allowed to spend on the phone, when you can use your phone, when the phone must be turned off, and what you will do if someone calls you too often, and so on.
You’ll also have to learn to take care of the phone in your life. Keep it charged(充电) and store it in the safe place so it doesn’t get lost. And whatever you do, don’t use it in the bathroom. I know someone who dropped her phone in the toilet!
【小题1】Parents buy cell phones for their kids because ___________.

A．they think it is necessary

B．they think their kids are old enough

C．they have asked the author for advice

D．they want to follow their kids wherever they are.

【小题2】The author of the passage ___________.

A．wants to describe how children use cell phones

B．knows nothing about when children can have a cell phone

C．may have done a survey on kids using cell phones

D．has been a teacher for many years

【小题3】Which of the following is true?

A．It is too young for kids of 12 or 13 to get a cell phone.

B．A cell phone is useful for kids and their parents.

C．The author is against the idea of kids to have cell phones.

D．Most kids are considering having cell phones.

【小题4】Who is the passage most probably written by?

A．Parents who have bought phones for their kids.

B．Someone who does cell phone business.

C．A teacher who cares most about school safety.

D．Someone who works for children’s education.

【小题5】 Which might not be a rule for kids with a cell phone?

A．Keep it on all the time.

B．Make a call if something goes wrong.

C．Don’t use it in the bathroom.

D．Take care not to lose it.

WARNING: Holding a cell phone against your ear or putting it in your pocket may be bad for your health.

This sentence is a warning that you’d better not put it close to you when a new phone is bought. Apple company, for example, doesn't want IPhones to come closer to you than 1.5 centimeters; Research In Motion, BlackBerry's producer, recommends 2.5 centimeters.

(1)If cell phone use can health problems, the will be very serious. Americans spend 2.26 trillion minutes chatting on cell phones every year, which brings $109 billion for the wireless businessmen.

Devra Davis, an epidemiologist(皮肤病专家) who has worked for the University of Pittsburgh, has published a book about mobile phone radiation（辐射）"Disconnect." Davis studies how often brain cancer happens during different age groups. She finds a big increase in brain cancer in the 20-to-29 age group and a drop for the older people.

Children are more easily hurt by radiation than grown-ups, Ms. Davis and other scientists point out. But no studies have yet been finished on cell phone radiation and children, she says.

Henry Lai, a research professor, began lab radiation studies in 1980 and found that mice exposed to(暴露在) radiofrequency（电波频率）radiation had destroyed DNA in their brains.

Ms. Davis recommends using wired earphones（有线耳机）or the phone's speaker. (2)Children should send text messages rather than call, she said, and pregnant（怀孕的） women should keep phones away from their bodies.

1.在（1）句空白处填入适当的词使句意完整、上下文通顺。

2.将（2）句翻译成中文。

3.回答问题：What kind of people with brain cancer are getting more and more?

4.找出同义句。

Scientists are still carrying on with the studies on cell phone radiation and children

5.找出或写出该短文的主题句。

阅读表达阅读短文，按要求完成短文后的各项任务。（10分）

The summer is coming, and the storms are often. Though they happen often, some people don’t take them seriously. 1) In fact, it’s very ______ for people and it even can ______ people die at once.

So how do we keep safe during a lightning storm?

If you are indoors, stay away from windows and doors during a lightning storm. Don’t take a shower or do some dishes, because lightning can travel through water. Turn off the TV and computer. I learnt the hard way, and my computer was broken. Never use the phone. Lightning could travel through the phone line and hit you.

If you are outdoors during a lightning storm, never take shelter under a tree, because the lightning could hit the tree and travel through the trees to hit you. Stay away from anything that is metal. Try to get in your car and close all the windows or go into a nearby building right away.２） If there is no building around, try to find a low place to stay in. Squat(蹲) down near the ground and put your hands over your ears. Never use a cell phone.

1.在1）句的空白处填入适当的词使句意完整、上下文通顺；

2.将２）句译成中文：

3.回答问题：Why can’t people use the phone?

4.在文中找出与 If something is made of metal, keep away from it.意思相近的句子。

5.在文中找出最能表达该短文主题的句子。

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