Mobile Phones
　　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 build until the long-term health effects of the electromagnetic radiation they emit is 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 by3 2, 000 a day.
　　_____ (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.
　　詞匯：
　　mobile ['məubail] adj. 移動的 circulate ['sə:kjuleit] v.流傳
　　electromagnetic [ɪlektrəʊ'mæɡnɪtɪk] adj. 電磁的 density ['densiti] n. 密度
　　transmitter tower [trænz'mitə 'tauə]發(fā)射塔 disregard [͵disri'ɡɑ:d] v. 不顧
　　shield [∫i:ld] n. 隔離屏 accelerate [æk'seləreit] v. 加速，加快
　　注釋：
　　1. 動詞prove用的是過去式形式proved,這是一種虛擬語氣表示假設(shè)的用法。
　　2. Nobody’s going to drop dead overnight … : “沒有人會在一個晚上倒地死去……” overnight 是副詞，意為“一夜間；一下子；整夜”。如：
　　This stadium was not built overnight . 這個體育場不是一下子建起來的。
　　On his way to Europe, John stayed with his parents in Chicago overnight.
　　3. 介詞by表示“以……（的速度增加）”。
　　4. 介詞by表示“到……前”。
　　By Thursday morning you should complete writing the experiment report.
　　the year 2000 ： 公元2000年。
　　5. many in high density residential areas :是獨(dú)立分詞短語。注意它省略了being, 即 many (being) in high density residential areas. 此外，many 指的是 many transmitter towers.
　　6. at a rate more than three times that of adults 可以理解為 at a rate (that is ) more than three times that of adults, 意為“以比成人多兩倍的比率……”短語中的that 指代rate。倍數(shù)的表達(dá)法是：“數(shù)字 + times + 名詞/that”。如：
　　His salary is three times that of mine.
　　The sales volume of refrigerators in 2000 was two times that in 1999.
　　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(xiàng)。此外，直接陰郁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(jī)的現(xiàn)狀。選項(xiàng)B的內(nèi)容是對到2000年年底之前手機(jī)發(fā)展前景的預(yù)測，內(nèi)容連貫，是正確答案。
　　3. E 這一段的第一句說的是，許多微波發(fā)射塔建在人口稠密的居民區(qū)。選項(xiàng)E的內(nèi)容涉及微波發(fā)射塔的地點(diǎn)選擇只考慮到地理位置，而不顧及公眾的需求。選項(xiàng)E擴(kuò)展了第一句表達(dá)的信息。此外，選項(xiàng)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)該禁止在學(xué)校操場、兒童日托中心、醫(yī)院、運(yùn)動場所以及兒童占比例較高的居住場所方圓500米范圍內(nèi)建發(fā)射塔。選項(xiàng)A說明要這樣做的原因，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(xiàng)目的問題，提示了D是正確答案。