阅读理解。 Researchers believe the mobile ph

题目：

阅读理解。

     Researchers believe the mobile phone system makes young people less thoughtful and more likely

to make mistakes elsewhere in life.

     Hitting a few keys and then seeing the desired word appear in full trains children to be fast but

inaccurate when doing other things, according to Australian scientists.

     They warn that this could have repercussions throughout the country, especially as more than 9 out

of 10 16-year-olds now own a mobile phone as well as 40 percent of primary schoolchildren.

     In a new study, Professor Michael Abramson, a researcher at Monash University, Melbourne,

Australia, analyzed the mobile phone use of children aged between 11 and 14 and their ability to carry

out a number of computer tests.

     A quarter of the children made more than 15 voice calls a week and a quarter of them wrote more

than 20 text messages a week.

     When researchers studied the way in which the children handled IQ-type tests they found that

increased mobile phone use appears to change the way their brains work.

     Prof Abramson said, "The kids who used their phones a lot were faster on some of the tests, but

were less accurate.

     "We suspect that using mobile phones a lot, particularly tools like predictive texts for SMS (Short

Message Service), is training them to be fast but inaccurate.

     "Their brains are still developing, so if there are effects then potentially it could have effects in the

future.

     "The use of mobile phones is changing the way children learn and pushing them to become more

impulsive (易冲动的) in the way they behave."

     Experts concerned about the possible impact of mobile phone radiation on developing brains have

given a warning over children's use of them.

     But Prof Abramson says the amount of radiation given off when texting is a mere 0.03 percent of

that given off during voice calls - suggesting radiation is not to blame for the brain effects. Instead, he

thinks predictive texting could be doing the damage.

     The study was published in the journal Bioelectromagnetics and disagreed with previous studies

which suggested that text messaging encourages children's language skills and did not damage their

ability to spell.

1. The underlined word "repercussions" probably means _______.

A. negative effects

B. profits

C. chances

D. positive influences

2. Abramson probably agrees that _______.

A. voice calls produce less radiation than texting

B. text messaging is bad for children's spelling

C. mobile phone use encourages children's language skills

D. children can be more accurate if they use mobiles a lot

3. Which of the following is the best title for the passage?

A. Mobile phone use is training children to be fast

B. Children use mobile phones much more than before

C. The negative impacts of mobile phone radiation

D. Text messaging is making children more impulsive