每题3分，共15分 1、 Mobile Phones Mobile phones should carry a label if they proved to be a dangerous source of radiation, according to Robert Bell, a scientist. And no more mobile phone transmitter towers （发射塔） should be built until the long-term health effects of the radiation they emit （放射） is scientifically eva luated, he said. "Nobody''s going to drop dead overnight but we should be asking for more scientific information," Robert Bell said at a conference on the health effects of low-level radiation. "If mobile phones are found to be dangerous, they should carry a warning label until proper shields can be devised," he said. A report widely circulated （传播） among the public says that up to now scientists do not really know enough to guarantee there are no ill effects on humans from radiation. According to Robert Bell, there are . million mobile phones in Australia alone and they are increasing by 2,000 a day. By the year 2000 it is estimated that Australia will have 8 million mobile phones: nearly one for every two people. As well, there are 2,000 transmitter towers around Australia, many in high density （密度） residential areas. For example, Telstra, Optus and Vodaphone build their towers where it is geographically suitable to them and disregard the need of the community. The radiation emitted from these towers may have already produced some harmful effects on the health of the residents nearby. Robert Bell suggests that until more research is completed the government should ban construction of phone towers from within a 500 meter radius （半径） of school grounds, child care centers, hospitals, sports playing fields and residential areas with a high percentage of children. He says there is emerging evidence that children absorb low-level radiation at a rate more than three times that of adults. He adds that there is also evidence that if cancer sufferers are subjected to radiation the growth rate of the disease accelerates （提高）. Robert Bell calls on the major telephone companies to fund adequate research and urges （敦促） the government. to set up a wide ranging inquiry into possible health effects.
参考答案： D
答案解析： 第一段的第一句话告诉我们：被证实有辐射危险的手机应该带着标签。
1According to Robert Bell, if mobile phones prove to be dangerous to people''s health.
参考答案： B
答案解析： 第二段的最后一句话讲的是：几乎每两个人中就有一个人使用手机。
2How many mobile phone users will there be in Australia by the year 2000 according to the passage?
参考答案： D
答案解析： 第三段的第一句话说的是：大多数信号塔建造在高密度的居民区内。
3Many transmitter towers were built
参考答案： A
答案解析： 第四段的第三句话的意思是：孩子吸收辐射的速度是成年人的三倍。
4Who absorb low-level radiation at a higher rate than the others?
