资源描述：
《2019-2020年高考英语二轮复习 阅读理解（2）(I)》由会员上传分享，免费在线阅读，更多相关内容在教育资源-天天文库。
1、2019-2020年高考英语二轮复习阅读理解（2）(I)阅读下列短文，从每题所给的四个选项（A、B、C和D）中，选出最佳选项。(TheAffectofElectricityonCancer) Canelectricitycausecancer?Inasocietythatliterallyrunsonelectricpower,theveryideaseemspreposterous.Butformorethanadecade,agrowingbandofscientistsandjournalistshaspo
2、intedtostudiesthatseemtolinkexposuretoelectromagneticfieldswithincreasedriskofleukemiaandothermalignancies.Theimplicationsareunsettling,tosaytheleast,sinceeveryoneesintocontactwithsuchfields,whicharegeneratedbyeverythingelectrical,frompowerlinesandantennastop
3、ersonalputersandmicro-waveovens.Becauseevidenceonthesubjectisinconclusiveandoftencontradictory,ithasbeenhardtodecidewhetherconcernaboutthehealtheffectsofelectricityislegitimate—ortheworstkindofparanoia. NowthealarmistshavegainedsomequalifiedsupportfromtheU.S
4、.EnvironmentalProtectionAgency.Intheexecutivesummaryofanewscientificreview,releasedindraftformlatelastweek,theEPAhasputforwardwhatamountstothemostseriousgovernmentwarningtodate.Theagencytentativelyconcludesthatscientificevidence“suggestsacasuallink”betweenext
5、remelylow-frequencyelectromagneticfields—thosehavingverylongwave-lengths—andleukemia,lymphomaandbraincancer,WhilethereportfallsshortofclassifyingELFfieldsasprobablecarcinogens,itdoesidentifythemon60-hertzmagneticfieldas“apossible,butnotproven,causeofcancerinh
6、umans.” Thereportisnoreasontopanic—oreventolostsleep.Ifthereisacancerrisk,itisasmallone.TheevidenceisstillsocontroversialthatthedraftstirredagreatdealofdebatewithintheBushAdministration,andtheEPAreleaseditoverstrongobjectionsfromthePentagonandtheWhitHouse.Bu
7、tnownoonecandenythattheissuemustbetakenseriouslyandthatmuchmoreresearchisneeded.Attheheartofthedebateisasimpleandwell-understoodphysicalphenomenon:Whenanelectriccurrentpassesthroughawire,titgeneratesanelectromagneticfieldthatexertsforcesonsurroundingobjects,F
8、ormanyyears,scientistsdismissedanysuggestionthatsuchforcesmightbeharmful,primarilybecausetheyaresoextraordinarilyweak.TheELFmagneticfieldgeneratedbyavideoterminalmeasuresonlyafewmilligaus
