Question

阅读理解。

Do you or someone you know use a mobile phone? In today’s world, many people use a mobile phone especially businessmen and businesswomen. These people are an important part of the business world and help our economies develop. In fact in some countries even children and the elderly use mobile phones to keep in touch with family and friends. We know how useful it is to have a mobile phone, but do we know how safe these phones are? Some scientists say that mobile phones could be a risk to our health. So, money is being given to scientific re search to find out if mobile phones may be harmful in any way.

What does the future look like? Is a hands - free phone the an swer? The idea behind hands - free sets is simple and maybe they are a safer way for people to communicate. The hands - free set has a piece in your ear and a microphone near your mouth which is con nected to a wire that goes into your phone. Some scientists think this is a much safer way to use a phone. Some scientists have proved that a mobile phone 10 centimeters from your head is far safer than if the headset is right against your ear. Some reports say that hands - free sets have 95% less radiation exposure, while other reports say that hands - free sets expose you to more radiation. Governments and the mobile phone industry are researching the effects, including:

● the effects of radio waves on blood pressure and the brain, such as the abilities to concentrate, remember and learn the connections between mobile phone use and brain cancer long - term effects of mobile phone use, looking at health histories of people who have used mobiles since the 1980s. They will be looking at both current mobile phones and the new generation of 4G phones. The results from these studies will help us understand more about the world beyond mobile communications. Wouldn’t it be strange if scientists discovered that mobile phones were too dangerous and we had to stop using them and go back to writing letter and using the normal telephone?

1.The underlined word ＂concentrate＂ means      .

A. feel interested            B. take actions

C. think carefully           D. answer quickly

2.From the passage we can know     .

A. wearing headsets is a safer way when we communicate with mobile phones

B. nobody can tell exactly which the safer way to use a mobile phone is

C. we’d better stop using hands - free sets while scientists are looking at them

D. there is some connections between mobile phone use and some illness

3.The writer thinks that .

A. it’s certain that new technology brings new problems

B. it would be strange if we stop using mobile phones

C. using the normal telephone can avoid the risk from mobile phones

D. we couldn’t stop using mobile phones though they might be harmful in any way

Answer

1.C

2.B

3.D

【解析】

试题分析：手机在我们的日常生活中使用非常广泛。人们利用它来保持家人和朋友的联系。手机的使用可能会给我们的健康造成危害。但我们的生活中已离不开手机，没有人能告诉准确的说出使用手机更安全的方式。

1.C词意猜测题。根据短文中出现的句子“the effects of radio waves on blood pressure and the brain, such as the abilities to concentrate, remember and learn” 无线电波对血压和大脑的影响，如集中能力、记忆和学。A. feel interested 感兴趣；B. take actions 行动；C. think carefully 认真思考；D. answer quickly快速回答。故答案为C。

2.B细节理解题。根据短文中的句子“Some scientists think this is a much safer way to use a phone. while other reports say that hands - free sets expose you to more radiation.”可知，没有人能告诉准确的说出使用手机更安全的方式。答案为B。

3.D细节理解题。根据短文最后的句子“Wouldn’t it be strange if scientists discovered that mobile phones were too dangerous and we had to stop using them and go back to writing letter and using the normal telephone?”可知，作者认为尽管手机对人的身体可能有害，我们还是不能停止对手机的使用。答案为D。

考点：科普类短文阅读。