Answer the questions at the end based on the text.

"Mobile phones killed our man,"screamed one headline last year. Also came claims that an unpublished study had found that mobile phones cause memory loss. And a British newspaper devoted its front page to a picture supposedly showing how mobile phones heat the brain. 

For anyone who uses a moblie phone, these are worring times. But speak to the scientists whose work is the focus of these scared and you will hear a different story. 

What we do have, however, are some results suggesting that mobile phones'emission have a variety of strange effects on living tissue that can't be explained by the general radiation biology. And it's only when the questions raised by these experients are answered that we'll be able to say for sure what moblie phones might be doing to the brain. 

One of the odd effects comes from the now famous"merrory loss" study. Alan Preece and his colleagues at the prefix = st1 /UniversityofBristolplaced a device that imitated the microwave emission of mobile phones to the left ear of volunteers. The volunteers were all goood at recalling words and pictures they had been shown on a computer screen. Preece says he still can't comment on the effects of using a mobile phone for years on end. But he rules out the suggestion that mobile phones have an immediate effect on our cognitive abilities."I'm pretty sure there is no effect on short-term memory," he says. 

Another expert, Tatterasll, remarked that his latest findings have removed fears about memory loss. One result, for instance, suggests that nerve cell synapses exposed to microwaves become more----rather than less-----receptive to under-going changes linked to the memory formation. 

It would be an even happier outcome if microwave turned out to be good for you. It sounds crazy, but a couple of years ago a team led by William Adey at the Veterans Affairs Medical Center in California, found that mice exposed to microwave for two hours a day were less likely to develop brain tumours when given a cancer-causing chemical. 

So should we forget about mobile phone radiation causing brain tumours and scrambling our minds? 

"If it doesn't certainly cause cancer in animals and cells, then it probably isn't going to cause cancer in humans,"says William. And while there's still no evidence that mobile phone does mangle your memories or give your cancer, the _ is:Don't panic.

1. What common tool is the subject of this article?
2. Is it about how high roaming prices are?
3. Then what it is about?
4. Do they make the head get hot or cold?
5. Who did an experiment to see if they make you remember poorly?
6. Did he come to a conclusion about immediate use?
7. What was it?
8. Did someone suggest it might help prevent forgetting things?
9. Who?
10. What happened to rodents that were tested?
11. Who tested them?
12. Where?
1. Mobile phones
2. no
3. mobile phones causing memory loss
4. hot
5. Alan Preece
6. yes
7. there is no effect on short-term memory
8. yes
9. Tatterasll
10. mice exposed to microwave for two hours a day were less likely to develop brain tumours when given a cancer-causing chemical
11. William Adey
12. the Veterans Affairs Medical Center in California