Mobile phones should carry a label if they proved1 to be a dangerous source of radiation, according to Robert Bell, a scientist. And no more mobile phone transmitter towers should be built until the long-term health effects of the electromagnetic radiation they emit are scientifically evaluated, he said. “Nobody’s going to drop dead overnight2 but we should be asking for more scientific information，” Robert Bell said at a conference on the health effects of low-level radiation. ____1____

　　A report widely circulated among the public says that up to now scientists do not really know enough to guarantee there are no ill-effects on humans from electromagnetic radiation. According to Robert Bell, there are 3. 3 million mobile phones in Australia alone and they are increasing by 2,000 a day3. ____2____

　　As well, there are 2,000 transmitter towers around Australia, many in high density residential areas5. ____3____The electromagnetic 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 metre radius of school grounds, child care centres, hospitals, sports playing fields and residential areas with a high percentage of children. ____4____ He adds that there is also evidence that if cancer sufferers are subjected to electromagnetic waves the growth rate of the disease accelerates.

　　____5____ According to Robert Bell, it is reasonable for the major telephone companies to fund it. Besides, he also urges the Government to set up a wide-ranging inquiry into possible health effects.

　　練習(xí)：

　　A　He says there is emerging evidence that children absorb low-level radiation at a rate more than three times that of adults6.

　　B　By the year 20004 it is estimated that Australia will have 8 million mobile phones ：nearly one for every two people.

　　C　“If mobile phones are found to be dangerous, they should carry a warning label until proper shields can be devised,” he said.

　　D　Then who finances the research?

　　E　For example, Telstra, Optus and Vodaphone build their towers where it is geographically suitable to them and disregard the need of the community.

　　F　The conclusion is that mobile phones brings more harm than benefit.

　　答案與題解：

　　1.C　“空1”應(yīng)該填入與low-level radiation有關(guān)的內(nèi)容，例如：low-level radiation究竟有害還是無害。所以，C是合適的選項。此外,直接引語也佐證了選擇的合理性。

　　2.B　“空2”前面一句介紹了澳大利亞擁有手機的現(xiàn)狀。選項B的內(nèi)容是對到2000年之前手機發(fā)展前景的預(yù)測，內(nèi)容連貫，是正確答案。

　　3.E　這一段第一句說的是，許多微波發(fā)射塔建在人口稠密的居民區(qū)。選項E的內(nèi)容涉及微、波發(fā)射塔的地點選擇只考慮到地理位置，而不顧及社區(qū)的安全。選項E擴展了第一句表達的信息。此外，選項E中出現(xiàn)tower這個詞，與第一句的tower相呼應(yīng)，也佐證了選擇的合理性。

　　4.A　“空4”前面一句說的是Robert Bell建議政府應(yīng)該禁止在兒童比例高的地區(qū)(如學(xué)校操場、兒童醫(yī)療中心、居住小區(qū)等)的500米半徑范圍內(nèi)建造發(fā)射塔。選項A說明為什么要這樣做的原因，因而是答案。

　　5.D　“空5”后面一句說的是major telephone companies出錢資助研究項目的問題，提示了D是正確答案。