决战阅读之说明文-现象解说类2 精讲课件(强化篇).pptx

决战阅读之说明文-现象解说类2 精讲课件(强化篇).pptx

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(高中说明文)现象解说2决战阅读之巅

培养快速理清篇章结构,抓取文章大意的能力。运用说明文体裁分析,规范阅读理解的解题步骤。学会使用“脱衣服”大法分析长难句。积累与现象解说类说明文相关的主题词汇。

真题讲解示例22017北京卷CPART3

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2017北京卷C题目见讲义①Measles(麻疹),whichoncekilled450childreneachyearanddisabledevenmore,wasnearlywipedoutintheUnitedStates14yearsagobytheuniversaluseoftheMMRvaccine(疫苗).Butthediseaseismakingacomeback,causedbyagrowinganti-vaccinemovementandmisinformationthatisspreadingquickly.Alreadythisyear,115measlescaseshavebeenreportedintheUSA,comparedwith189foralloflastyear.②Thenumbersmightsoundsmall,buttheyaretheleadingedgeofadangeroustrend.Whenvaccinationratesareveryhigh,astheystillareinthenationasawhole,everyoneisprotected.Thisiscalled“herdimmunity”,whichprotectsthepeoplewhogethurteasily,includingthosewhocan’tbevaccinatedformedicalreasons,babiestooyoungtogetvaccinatedandpeopleonwhomthevaccinedoesn’twork.③Butherdimmunityworksonlywhennearlythewholeherdjoinsin.Whensomerefusevaccinationandseekafreeride,immunitybreaksdownandeveryoneisinevenbiggerdanger.④That’sexactlywhatishappeninginsmallneighborhoodsaroundthecountryfromOrangeCounty,California,where22measlescaseswerereportedthismonth,toBrooklyn,N.Y.,wherea17-year-oldcausedanoutbreaklastyear.⑤Theresistancetovaccinehascontinuedfordecades,anditisdrivenbyarealbutverysmallrisk.Thosewhorefusetotakethatriskselfishlymakeotherssuffer.

2017北京卷C题目见讲义⑥Makingthingsworsearestatelawsthatmakeittooeasytooptout(决定不参加)ofwhataresupposedtoberequiredvaccinesforallchildrenenteringkindergarten.Seventeenstatesallowparentstogetanexemption(豁免),sometimesjustbysigningapapersayingtheypersonallyobjecttoavaccine.⑦Now,severalstatesaremovingtotightenlawsbyaddingnewregulationsforoptingout.Butnoonedoesenoughtolimitexemptions.⑧Parentsoughtto

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