2019高考英语二轮专题强化典题精析—阅读理解13.doc

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1、2019高考英语二轮专题强化典题精析—阅读理解13It’struethatquiteafewmostrespectedscientificauthoritieshaveconfirmedthattheworldisbecominghotterandhotter.There’salsostrongevidencethathumansarecontributingtothewarming.Countlessrecentreportshaveprovedthesamething.Forinstance,a2010summaryaboutthe

2、climatesciencebytheRoyalSocietynotedthat:“Theglobalwarmingoverthelasthalf-centuryhasbeencausedmainlybyhumanactivity.”Youmaynotbelievethathumanscouldchangetheplanet’sclimate,butthebasicscienceiswellunderstood.Eachyear,billionsoftonsofgreenhousegasesarereleasedintotheatmos

3、pherebecauseofhumanactivity.Ashasbeenknownforyears,thesegasesholdheatthatwouldotherwiseescapetospace,wrappingtheplanetinaninvisible(看不见旳)blanket.Ofcourse,theearth’sclimatehasalwaysbeenchangingdueto“natural”factorssuchasvolcaniceruption（熔化）orchangesinsolar,orcyclesconcern

4、ingtheEarth’sgoingaroundthesun.Accordingtothescientificresearch,however,thewarmingobservedbynowmatchesthepatternofwarmingwewouldexpectfromabuild-upofgreenhousegasintheatmosphere–notthewarmingwewouldexpectfromotherpossiblecauses.Evenifscientistsdiddiscoveranotherreasonabl

5、eexplanationforthewarmingrecordedsofar,thatwouldgivebirthtoadifficultquestion.AsRobertHensonputsit:“Ifsomenewlydiscoveredfactoristoblamefortheclimatechange,thenwhyaren’tcarbondioxideandtheothergreenhousegasesproducingthewarmingthatbasicphysicstellsustheyshouldbe?”Theonly

6、waytoprovewith100%certaintythathumansareresponsibleforglobalwarmingwouldbetorunanexperimentwithtwoidenticalEarths– onewithhumaninfluenceandonewithout.Thatobviouslyisn’tpossible,andsomostscientistsarecarefulnottostatehumaninfluenceasanabsolutecertainty.1.Inmostscientists’

7、opinion,theglobalwarmingismainlycausedby________.A.solaractivityB.volcanicactivityC.naturalfactorsD.humanfactors2.Thetextisdevelopedby________.A.givingtypicalexamplesB.followingtheorderofspaceC.analyzingatheoryandarguingitD.comparingandfindingdifferences3.Theunderlinewor

8、d“identical”inthelastparagraphprobablymeans________.A.totallydifferentB.exactlythesameC.extremelyimport