Unit 1 Science and Scientists Reading and Thinking 学案-2022-2023学年高中英语人教版2019选择性必修第二册

Unit1Scienceandscientistswarming-up&readingLearningaims:1.Totalkaboutscienceandcontributionsofscientists.2.Tohaveabetterunderstandingofthereadingpassage.3.Tolearntoorganizeascientificresearch.Learningprocedure:Step1Warmingup:matchthescientistintheleftcolumnwithhis/hercontributionsintherightcolumnArchimedesWhichscientistdiscoveredthatobjectsinwaterareliftedupbyaforcethathelpsthemfloat?ThomasNewcomenWhowroteabookexplaininghowanimalsandplantsdevelopedastheenvironmentchanged?ThomasEdisonWhoinventedthefirststeamengine?MarieCurieWhousedpeastoshowhowphysicalcharacteristicsarepassedfromparentstotheirchildren?CharlesDarwinWhodiscoveredradium?LeonardodaVinci Whoinventedthewayofgivingelectricitytoeverybodyinlargecities?ZhangHengWhowasthepainterthatstudieddeadbodiestoimprovehispaintingofpeople?GregorMendelWhoinventedalamptokeepminerssafeunderground?StevenHawkingWhoinventedtheearliestinstrumenttotellpeoplewhereearthquakeshappened?SirHumphryDavyWhoputforwardatheoryaboutblackholes?2.Doyouknowwhatischolera?Ifnot,pleasereadthefollowingpassageandknowaboutit.CholeraisaninfectiousdiseasecausedbythebacteriumVibrio.Itinfectsthesmallintestine(小肠).TherearemanytypesoftheVibriocholerabacteria.Someofthemcausemoreseriousillnessesthanothers.Becauseofthis,somepeoplewhogetcholerahavenosymptoms;othershavesymptomsthatarenotverybad,andothershaveverybadsymptoms.Themostcommonsymptomislargeamountsofwaterydiarrhea(水性腹泻).Intheworstcases,diarrheacanbesobadthatpeoplecandieinafewhours.Cholerastillaffectsmanypeoplethroughouttheworld.Estimatesfrom2010saythatbetween3millionand5millionpeoplegetcholeraeveryyear,and58,000–130,000peoplediefromthediseaseeveryyear.Today,choleraisconsideredapandemic(流行性疾病).However,itismostcommonindevelopingcountries,especiallyinchildren.Step2:Newwords&expressionsGothroughthepassageandtrytounderstandthefollowingwordsandexpressions(Ifnecessarypleaserefertoadictionary):expert2.attend3.beexposedto4.itsday5.terrified6.multiplyAo...8.suspect9.enquiry10.neighborhoods11.mark12.betoblame13.belinkedto14.beinstructednottodoStep3:Skimming&scanning:listentothetapeandchoosethebestanswers(1)Whatdoesthepassagemainlytalkabout?A．JohnSnowwasafamousdoctorinLondon.B．Thereasonthatcausedthedeadlydiseasecholera.C．JohnSnowsolvedtheproblemofcholera.D．Cholerawasandisaseriousdeadlydisease.(2)Whatwastheoriginalsourceofdiseaseof“KingCholera”？A．Acloudofdangerousgas.B．Thespreadingofvirusamongpeople.C．WaterinacertainpumpinLondon.D．Ariverpollutedbythedirtywater.(3)WhydidNo.21BroadStreetinLondonhavenodeaths?A．Thepeoplejustdrankthewaterfromthepump.B．Theydrunkbeeraswellaswaterfromthepump.C．Theydidn’tabsorbthedangerousair.D．Theysufferednogermsatall.(4)WhichofthetwotheoriesthatJohnSnowwasinterestedinwastruefinally?A．Both.B．Thefirstone.C．Thesecondone.D．Neither.(5)WhatdoyouthinktheLondonerswoulddowiththeunusedpumpsafterdefeating“KingCholera”？A．Theywoulddestroythem.B．Theywouldreusethemaftercleaning.C．Theywoulddesertthemforgood.D．Theywouldgoontousethemwithoutcleaning.Fastreading(1)～(5)CDDDBStep4:Carefulreading:Matchtheparagraphsandstagesinanexperimentwithexamplesinthisinvestigation.ParagraphStagesinanexperimentExampleinthisinvestigation1CollectresultsWhichtheoryiscorrect?2FindaproblemPlotinformationonamaptofindoutwherepeoplediedordidnotdie.3AnalyseresultsFindotherevidencetosupporttheanalysis.4FindsupportingevidenceFindoutwheretheygottheirwater.Analysethewatertoseeifitisthecauseofthedeaths5ThinkofamethodWhatcausescholera?6MakeaquestionCollectdataonthosewhofellillordiedandwheretheylived.7DrawaconclusionItwascertainthatpollutedwatercarriedthedisease.Thesourceofalldrinkingwatershouldbeexaminedtomakesureitissafe.参考答案详见教师用书P27Whatisthepassagewrittenas?politicalnewsB.ascientificreportC.sciencefictionD.ascientificpaperWhichstatementistrueaccordingtothepassage?JohnSnowwouldbecamemorefamousbecausehefoundthecureforcholera.JohnSnowwouldstillhavesolvedthisproblemwithoutthemap.JohnSnowshowedcholerawasinfectiousbylookingintothesourceofthewater.JohnSnowsuggestedthatthesourceofthewatersuppliesbecutoff.参考答案：2.B3.CStep5:Summary:closeyourbookandfillintheblanksJohnSnowwasawell-known1._____________inLondoninthe19thcentury.Hewantedtofindthe2._____________ofcholerainordertohelppeople3._____________tocholera.In1854whenacholera4._____________out,hebegantogatherinformation.He5._____________onamapwhereallthedeadpeoplehadlivedandfoundthatmanypeoplewhohaddrunkthedirtywaterfromthe6._____________died.Sohedecidedthatthepollutedwatercarriedcholera.Hesuggestedthatthe7._____