C
Hundreds of thousands of young children are being given mobiles(移动电话) by their parents against official health advice. One in nine five-to-nine-year olds has a mobile. This will rise to one in five in a year or two, making this the fastest growing group of mobile users.
A report on mobile safety says that while it is not sure whether they hurt users, children should not be allowed to use mobiles as much as grown-ups. This is because their brains are still developing and their bones are thinner, making it easier for mobile phone radio waves to pass through them. Mobile phone companies say they do not aim at under-16s, although some of their mobiles are designed to interest younger children.
Many of the mobiles are paid for as a safety measure so that the child can always call a parent when necessary. However, when children see that their friends have a mobile, it can become popular among them.
Professor Colin at Oxford University, who studies mobile phone radio waves, told BBC News “It’s new technology(技术) and the science is still developing. We have to be very careful about children—if there are any effects they would hurt young children more than grown-ups.” He suggested that children should be encouraged to use text messages rather than spoken conversations, this would reduce the amount of radio waves greatly.
43. Which age group of mobile users is increasing fastest?
A. From 1 to 5 B. From 5 to 9
C. From 9 to 16 D. Above 16
44. What do mobile phone companies say about their business?
A. They make mobiles for those over 16.
B. They don’t serve those who are under 16.
C. Their designers know the brains of children users.
D.Younger children are more interested in their mobiles.
45. According to Professor Colin, which of the following is TRUE?
A. Reducing radio waves is a hard task for scientists.
B. Children should not be allowed to use mobiles.
C. Scientists usually care for young children more than grown-ups.
D. Sending each other text message is safer than regular calling.
46. What do you think is the purpose of this passage?
A. To make known that children mobile users are increasing very fast.
B. To warn people about the danger of children using mobiles.
C. To discuss the effects of mobile phone radio waves.
D. To teach people a safe way of using mobiles.
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