选材规范、标准演练;循序渐进、梯度提升;题量丰富、有效提高;技巧同步、一语中的;缩略速记,全面覆盖。 注意直接听写正文
Cellphonesareanunavoidablepartofdailylife. Evenifyoudonotownoneyourself, youareexposedtothemallthetimewheneveryouenterthepublicareas. Mostpeoplethinkoftheircellphonesassomethingthattheyjustcouldnotlivewithout. Makesureyouareinformedaboutthepotentialhealthhazardsassociatedwithcellphoneusethatthecellphonecompaniesdonotwantyoutoknow. Whilestudiesarenotconclusive, scientistsarebeginningtosuspectthatcellphoneusecouldcontributetoeverythingfromheadachetobraincancer. Thisisbecausecellphonesemitelectromagneticwavesandsmallamountsofradiation. Whileresearchdoneinthe 1990sindicatedthattheradiationusingacellphonecouldexposeyoutoisnotreallyenoughtodoanydamage, manyexpertsarenowabolishingthatopinion. Theyrecommendthat, attheveryleast, children, teensandyoungadultsavoidusingcellphonesexceptinemergencies.
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