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1、Unit1Makingadifference优秀教案(人教版高二英语上册教案教学设计)I.TeachingAims1.Talkaboutscienceandscientists;2.Talkaboutpeople;3.Practisedescribingpeopleanddebating;4.Learnmoreabouttheinfinitive;5.Writeadescriptiveparagraph;II.Teachingtime:fourperiodsIII.BackgroundInformationTheBeginningofTimea
2、ndaRemarkableManCalledStephenHawkingIfyouhaveeventhoughtabouthowtheuniversebeganandwhethertimehasabeginningoranending,thenyoushouldknowabouta55-year-oldEnglishmancalledStephenHawking.Why?BecauseheisconsideredtobeoneofthebrainiestmenintheworldandtobethemodernsuccessorofAlbert
3、Einstein.Stephenhasspenthislifestudyingandthinkingabouttheoriginsftheuniverseandhowitcanbeexplainedbyusingthemoderntheoriesofphysicssuchasrelativityandquantummechanics.Hisdiscoveriesandhisscientificproposalshavebeenrevolutionary.Peoplecallhimagenius.Justasamazingisthefasttha
4、tsincehisearlytwenties,hehasbeensufferingfromanincurablediseaseofthenervoussystemwhichhasaffectedhismovementsandhisspeech.But,fortunately,althoughhemustuseawheelchairandothertechnicalaidstodothings,hisbrainfunctionsperfectly.Indeed,itfunctionsbetterthanthevastmajorityofpeopl
5、e’s.So,inspriteofaseveredisability,hehasmadetremendouscontributionstoourunderstandingofouruniverse.SowhatdoesStephenthinkaboutthebeginningofourworld?Well,hethinksthatitbeganaroundfifteenbillionyearsago.Healsothinksthatouruniversewasprobablycreatedbyanenormousexplosion,a“BigB
6、ang”.Thisisaviewheldbymanycosmologists(scientistswhostudytheuniverse).ButscientistsholddifferentviewaboutwhattheuniversewaslikebeforetheBigBang.Somepeoplethinkthatthereisnowaythatmodernphysicscanexplainor精品学习资料可选择pdf第1页，共26页-----------------------predictanythingbeforetheBigB
7、ang.ManyotherpeoplethinkthattheBigBangmusthavebeentheworkofGod.StephenHawkinghashisownviewonwhattheuniversewaslikebeforethebigbang.Hehassuggestedthat,yes,wecansaythattheuniversebeganatoneparticularpoint(abigbang).But,thisonepointwasjustanordinarypointintimelike,say,theNorthP
8、oleisapointonthesmoothsurfaceoftheearth.Itwasnotapointofrealbeginning,justa
