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时间:2020-04-03
《中考英语 阅读理解分类训练--科学小品篇素材 牛津版.doc》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、SectionIII科学小品篇 Passage23 Researchers(研究者)haveannounced(宣布)theresultoftwostudiesonthehealtheffectsofthedrugaspirin(阿斯匹林).Onestudyshowsaspirincansharplyreducethechancethatahealthy,oldermanwillsufferfromaheartattack(心脏病). Thestudyofferedtwonewresultsfromearlierfindings.Its
2、aidtakingoneaspirinpilleveryotherdayhelpedonlyhealthymenovertheageoffifty.Italsosaidaspiringavethegreatestprotectionagainstheartattackstomenwithlowbloodcholesterol(胆固醇)levels. EarlierintheUnitedStatesbeganamajoraspirinstudyintheearly1980s.Itincluded22,000healthymendoctors
3、.Allwerebetweentheagesoffortyandeighty-four.Morethan11,000ofthedoctorstookaharmlesspillthatcontainednodrug.Themendidnotknowwhichkindofpilltheyweretaking. Thedoctorswhotookaspirinsuffered44%fewerheartattacksthanthosetakingtheharmlesspill.139menwhotookaspirinsufferedfromhea
4、rtattacks.Tenofthemdied.239menwhodidnottakeaspirinsufferedfromheartattacks.Twenty-sixofthemdied. Theresearcherssaidthedoctors’studyprovidesclearproofthattakingaspirincanpreventafirstheartattackinhealthy,oldermen.Theysaid,however,theresultdoesnotmeaneverymanovertheageoffif
5、tyshouldtakeaspirin.Theysaidaspirincouldn’thelpmenwhodonoteathealthyfoods,whosmokecigarettesandwhoarefat.Theresearcherssaidmenwhothinktheywouldbehelpedbytakingaspirinshouldtalkwiththeirdoctorsfirst. 1.Thepassagetellsusthatthenewuseofaspirinis______. A.totreatheartdisease
6、 B.toreducepainwhileonesuffersfromaheartattack C.tohelpoldpeopletobemorehealthy D.toreducethechanceofaheartattackinoldmen 2.Aspirincanhelpthosewho______. AworkasdoctorsB.areunder40yearsold C.arefatandsmokecigarettesD.areolderandhealthy 3.Atlasttheresearchersadvisedus
7、totakeaspirin______. A.withcareB.asmuchaswelike C.everydayD.onlyconsideringtheage 4.Fromtheexperimentwecanconcludethatabout_____ofpeoplewhosufferedfromheartattackswithoutaspirindied. A.7%B.11%C.19%D.44% Passage24 Itseemstobestrangetoyouthereisablindspot(盲点)ontheeyes.
8、Hereisaninterestingexperiment(实验)thatcanmakesomethingdisappear,whenoneeyeisopen. Makeaca
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