Ⅰ.Matchthefollowinggreatscientistswiththeircontributions.1.Theelectriclightbulb(F)2.TheOriginofSpecies(D)3.UniversalGravitationandThreeLawsofMotion(B)4.Thedevelopmentoftelescope(C)5.BigBangTheoryandBlackHoleTheory(A)6.TheoryofRelativity(E)Ⅱ.Skimthepassageandanswerthefollowingquestion.Whyisthecholeracalled“KingCholera”inthetext?____________________________________________________________________________________________________________________________________________________________Becausecholerawasthedeadlydiseaseofitsday.Neitheritscausenoritscurewasunderstood.Somanythousandsofterrifiedpeoplediedeverytimetherewasanoutbreak.Ⅲ.Fillintheblanksaccordingtothetext.Ⅳ.Scanthereadingpassageandchoosethebestanswers.1.What’sthepurposeofthetext?A.Toshowushowdifficultitwastofindacureforcholera.B.TotellushowJohnSnowfoundthecauseofcholeraandthecureforit.C.Toshowushowdifficultitwastocarryoutexperimentsatthattime.D.Totellusthewaycholeraspreadandhowseriousitwas.2.JohnSnowfinallyprovedthetheoryhebelievedby_____.A.gatheringinformationwiththehelpofamapB.lookingintothesourceofthewaterforBroadStreetandCambridgeStreetC.separatingthosewhosufferedcholerafromthosewhodidn’tD.bothAandB3.WhichofthefollowingisTRUEaccordingtothetext?A.JohnSnowbecamefamousaftercholerahitEnglandinthe19thcentury.B.JohnSnowbegantocollectinformationlongbeforecholerahitEnglandinthe19thcentury.C.ThemotherandherdaughtermentionedinthetextbothlivedinBroadStreet.D.JohnSnowfeltunsureaboutthecauseofcholeraafterhemarkedonthemap.4.WhichofthefollowingtheoriesdidJohnSnowbelieve?A.Choleramultipliedintheair.B.Peopleabsorbedthediseaseintotheirbodies,thenwereaffectedanddied.C.Peoplespreadtheviruswhenspeakingtoeachother.D.Peopledidn’tpayattentiontopersonalhygiene(卫生)．5.WhenwasJohnSnowabletoannounceforsurethatpollutedwatercarriedthevirus?A.Afterhefoundasupportingevidence.B.Afterhelookedintothesourceofthewaterforthosetwostreets.C.Whencholerabrokeout.D.AftermanymorepeoplediedⅤ.Fillintheblanksaccordingtothereadingpassageusingwordswehavejustlearnt.JohnSnowwasan1.expertphysicianwhoever2.attendedQueenVictoria.Cholerawasthedeadlydiseaseofitsday.Asneitheritscausenorits3.curewasfound,manythousandsofpeoplewhowere4.exposedtothediseasediedeverytimetherewasan5.outbreak.Tohelptheordinarypeople,JohnSnowwasdeterminedtofacethe6.challengeandsolvethisproblem.Throughanalysis,JohnSnow7.suspectedthatpeople8.absorbedthisdiseaseintotheirbodieswiththeirmeals.SowhenanotheroutbreakhitLondonin1854,hewasreadytomakean9.enquiryandcollectinformation.Hemappedtheplaceswhereallthedeadpeoplehadlivedandfoundthatthe10.victimshadbeendrinkingthewaterfromtheriver11.pollutedbythedirtywaterfromLondon.He12.instructedpeopletoremovethe13.handlefromthepumpandthediseasesloweddown.Havingfoundanothersupportingevidence,he14.announcedwithcertaintythatthewaterwasto15.blame.Finally,“KingCholera”was16.defeated.Intherushtogettoschool,youdropapieceoftoastonthefloor.Doyouthrowitawayordecideit’sstillOKtoeat?Ifyou’relikemostpeople,youeatit.Maybeyoufollowthe“5-secondrule”,whichclaimsfoodsaresafetoeatifyoupickthemupwithin5secondsafterdroppingthem.Butyoumightwanttothinkagain.Scientistsnowsaythat5secondsisallittakesforfoodstobecomepollutedwithenoughbacteria(细菌)tomakeyousick.Bacteriacancausemanykindsofillnesses.Somekindsofbacteriacangrowonfood.Ifyoueatfoodsonwhichthesebacteriaaregrowin...
