WARNING: Holding a cellphone against your ear or storing it in your pocket may be hazardous to your health.
警告:将手机贴在耳边或者塞在口袋里可能有害健康。
This paraphrases a warning that cellphone manufacturers include in the small printthat is often tossed aside when a new phone is purchased. Apple, for example, doesn't want iPhones to come closer to you than 1.5 centimeters; Research In Motion, BlackBerry's manufacturer, recommends 2.5 centimeters.
在消费者购置新机后,常对手机厂商印在不起眼位置的小字警告不以为然。例如,苹果公司提醒称iPhone手机距离人体至少要有1.5厘米,黑莓手机生产商RIM公司建议最小距离为2.5厘米。
If health issues arise from cellphone use, the implications are huge. Voice calls - Americans chat on cellphones 2.26 trillion minutes annually - generate $109 billion for the wireless carriers.
如果手机使用可导致健康问题,后果将很严重。美国每年手机通话的时长共计2.26万亿分钟,这些语音通话为无线运营商带来了1090亿美元的收入。
Devra Davis, an epidemiologist who has worked for the University of Pittsburgh, has published a book about cellphone radiation, "Disconnect." The book surveys scientific research and concludes the question is not settled.
匹兹堡大学的流行病学专家德芙拉 戴维斯出版了一本有关手机辐射的书《关机》。这本书对有关科学研究进行了调查,其结论是:这个问题还没有定论。
Brain cancer is a concern that Ms. Davis examines. Over all, there has not been an increase in its incidencesince cellphones arrived. But the average masks an increase in brain cancer in the 20-to-29 age group and a drop for the older population.
脑癌是戴维斯女士研究的辐射后果之一。总体而言,自手机出现以来,脑癌发病率并未上升。但这一平均率掩盖了如下事实:脑癌在20至29岁年龄群体中的发病率增加,而在老年人群中的发病率下降。
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2014人教新目标英语八下unit 10《I’ve had this bike for three years》section b 1c课本听力素材(mp3)
2014人教新目标英语八下unit 1《What’s the matter》section a 1b课本听力素材(mp3)
2014人教新目标英语八下unit 2《I’ll help clean up the city parks》 section a1课件
2014人教新目标英语八下unit 2《I’ll help clean up the city parks》复习课件
2014人教新目标英语八下unit 1《What’s the matter》section a 2d课本听力素材(mp3)
2014人教新目标英语八下unit 1《What’s the matter》period 3课件
2014人教新目标英语八下unit 1《What’s the matter》section a 3a-4c(含grammar focus)课件
2014人教新目标英语八下unit 3《Could you please clean your room》 period 4课件
2014人教新目标英语八下unit 3《Could you please clean your room》section a 1b课本听力素材(mp3)
2014人教新目标英语八下unit 2《I’ll help clean up the city parks》 section b 2课件
2014人教新目标英语八下unit 3《Could you please clean your room》 period 2课件
2014人教新目标英语八下unit 1《What’s the matter》period 2课件
2014人教新目标英语八下unit 3《Could you please clean your room》period 2课件
2014人教新目标英语八下unit 10《I’ve had this bike for three years》课件
2014人教新目标英语八下unit 1《What’s the matter》section a 1a-1c课件
2014人教新目标英语八下unit 3《Could you please clean your room》period 4课件
2014人教新目标英语八下unit 1《What’s the matter》section b 1c课本听力素材(mp3)
2014人教新目标英语八下unit 1《What’s the matter》section b 1b课本听力素材(mp3)
2014人教新目标英语八下unit 10《I’ve had this bike for three years》words单词听力朗读素材(mp3)
2014人教新目标英语八下unit 3《Could you please clean your room》section a 1a-2d课件
2014人教新目标英语八下unit 10《I’ve had this bike for three years》课件3
2014人教新目标英语八下unit 2《I’ll help clean up the city parks》课件
2014人教新目标英语八下unit 3《Could you please clean your room》section a 2a课本听力素材(mp3)
2014人教新目标英语八下unit 10《I’ve had this bike for three years》专题复习课件
2014人教新目标英语八下unit 3《Could you please clean your room》 period 5课件
2014人教新目标英语八下unit 10《I’ve had this bike for three years》section b 1b课本听力素材(mp3)
2014人教新目标英语八下unit 2《I’ll help clean up the city parks》 self check课件
2014人教新目标英语八下unit 3《Could you please clean your room》 period 3课件
2014人教新目标英语八下unit 2《I’ll help clean up the city parks》 section b 1课件
2014人教新目标英语八下unit 1《What’s the matter》section a 3a课本听力素材(mp3)