单项选择题
根据短文回答 23~30 题。
Can Mobile Phones Cause Disease?
1 'Mobile phone killed my man,' screamed one headline last year.Also came claims that an unpublished study had found that mobile phones cause memory loss.And a British newspaper devoted its front page to a picture supposedly(假定地)showing how mobile phones heat the brain.
2 For anyone who uses a mobile phone,these are worrying times.But speak to the scientists whose work is the focus of these scares and you will hear a different story. According to them,there is no evidence that mobile phones cause cancer or any other illness in people.
3 What we do have,however, are some results suggesting that mobile phones' emissions 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 experiments are answered that we' be able to say for Sure what mobile phones might be doing to the head.
4 One of the odd effects comes from the now famous' memory loss' study.Alan Preece and his colleagues at the University of Bristol placed a device that imitated the microwave emissions of mobile phones to the Left ear of volunteers.The volunteers were just as good at recalling words and pictures they had been shown on a computer screen, whether or not the device was switched on.Preece says he still can't comment or 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.
5 Another expert,Tatters all,remarked that his latest findings have removed fears about memory loss.One result,for instance,suggests that nerve cell synapses(突触) exposed to microwaves become more-rather than less-receptive(感受的)to undergoing changes linked to memory formation.
6 Hopefully, microwaves might turn out to be good for you.It sounds crazy, but 3 couple of years ago a team led by William Adey at the Veterans Affairs Medical Center in California found that mice exposed to microwaves for two hours a day were Less Likely to develop brain tumours when given a cancer-causing chemical.
第 23 题 paragraph 2_____________
A.Bad Results
B.Widespread Opposition
C.Groundless Anxiety
D.NO Effect on Short-term Memory
E.Mysterious Effects
F.Further Reassurance
- A.Also
B.And
C.
2
D.But
E.
3
F.And
G.
4
H.Alan
I.The
J.Preece
K.But
L.
5
M.One
N.
6
O.It
P.Bad
Q.Widespread
R.Groundless
S.NO
T.Mysterious
U.Further
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根据短文回答 36~40 题。 Two People, Two Paths You must be familiar with the situation: Dad's driving, Mum's telling him where to go He's sure that they need to turn left But she says it's not for another two blocks Who has the better sense of direction? Men or womenThey both do, a new study says, but in different waysMen and women, Canadian researchers have found, have different methods of finding their way Men look quickly at landmarks (地标) and head off in what they think is the right direction Women, however, try to picture the whole route in detail and-the follow the path in their head'Women tend to be more detailed,' said Edward Cornell, who led the study, 'while men tend to be a little bit faster and… a little bit more intuitive (直觉感知的)In fact, said Cornell, 'sense of direction' isn't one skill but twoThe first is the 'survey method' This is when you see an area from above, such as a printed map You can see, for example, where the hospital is, where the church is and that the supermarket is on its rightThe second skill is the 'route method' This is when you use a series of directions You start from the hospital, then turn left, turn right, go uphill -- and then you see the supermarketMen are more likely to use the survey method while women are more likely to use one route and follow directionsBoth work, and neither is betterSome scientists insist that these different skills have a long history they argue it is because of the difference in traditional rolesIn ancient times, young men often went far away with the older men to fish or hunt the trip took hours or days and covered unfamiliar places the only way to know, where you were was to use the survey method to remember landmarks - the mountains, the lakes and so onThe women, on the other hand, took young girls out to find fruits and plants these activities were much closer to home but required learning well-used paths So, women's sense of space was based on learning certain routes. 第 36 题 When finding his way, Dad tends to rely on( )A.his intuitive knowledgeB.his book knowledgeC.Mum's assistanceD.the police's assistance
A.his
B.his
C.Mum's
D.the
