THE PASSAGE MAINLY DISCUSSES ______. A. PUBLIC ASSISTANCE IN AMERICA...

Câu 10: The passage mainly discusses ______.

A. public assistance in America B. immigration into America

C. ways of fund-raising in America D. funding agencies in America

Đọc kỹ đoạn văn sau và chọn phương án đúng (A hoặc B, C, D) cho mỗi câu từ 11 đến 20.

Millions of people are using cellphones today. In many places, it is actually considered unusual not to use one. In many

countries, cellphones are very popular with young people. They find that the phones are more than a means of

communication - having a mobile phone shows that they are cool and connected.

The explosion in mobile phone use around the world has made some health professionals worried. Some doctors are

concerned that in the future many people may suffer health problems from the use of mobile phones. In England, there has

been a serious debate about this issue. Mobile phone companies are worried about the negative publicity of such ideas.

They say that there is no proof that mobile phones are bad for your health.

On the other hand, medical studies have shown changes in the brain cells of some people who use mobile phones.

Signs of change in the tissues of the brain and head can be detected with modern scanning equipment. In one case, a

traveling salesman had to retire at young age because of serious memory loss. He couldn't remember even simple tasks.

He would often forget the name of his own son. This man used to talk on his mobile phone for about six hours a day, every

day of his working week, for a couple of years. His family doctor blamed his mobile phone use, but his employer's doctor

didn't agree.

What is it that makes mobile phones potentially harmful? The answer is radiation. High-tech machines can detect very

small amounts of radiation from mobile phones. Mobile phone companies agree that there is some radiation, but they say

the amount is too small to worry about.

As the discussion about their safety continues, it appears that it's best to use mobile phones less often. Use your

regular phone if you want to talk for a long time. Use your mobile phone only when you really need it. Mobile phones can

be very useful and convenient, especially in emergencies. In the future, mobile phones may have a warning label that says

they are bad for your health. So for now, it's wise not to use your mobile phone too often.