great scientists预习优秀教案

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1、个人收集整理仅供参考学习Book5Unit1GreatScientists预习学案一．目标聚焦1、了解著名医生约翰·斯诺、钱学森、哥白尼等科学家.2、学会使用表示描述人物地句型3.学习过去分词作定语和表语地结构二．走进课文1.Readthepassageandnumbertheseeventsintheorderthattheyhappened.b5E2RGbCAP---JohnSnowbegantotesttwotheories.---AnoutbreakofcholerahitLondonin1854.---JohnSnowmarkedthedeathsonamap.---Heanno

2、uncedthatthewatercarriedthedisease.p1EanqFDPw---JohnSnowinvestigatedtwostreetswheretheoutbreakwasverysevere.DXDiTa9E3d---KingCholerawasdefeated.---Hefoundthatmostofthedeathswerenearawaterpump.RTCrpUDGiT---Hehadthehandleremovedfromthewaterpump.2.Readthepassageandanswerthesequestions.JohnSnowbelieve

3、dIdea2wasright.Howdidhefinallyproveit?5PCzVD7HxA____________________________________________________________________________jLBHrnAILgDoyouthinkJohnSnowwouldhavesolvedthisproblemwithoutmap?giveareason.xHAQX74J0X____________________________________________________________________________LDAYtRyKfEC

4、holerawasa19thcenturydisease.whatdiseasedoyouthinkissimilartocholeratoday?why?Zzz6ZB2Ltk____________________________________________________________________________dvzfvkwMI1三．句式点击1.WiththisextraevidenceJohnSnowwasabletoannouncewithcertaintythatpollutedwatercarriedthevirus.rqyn14ZNXIwiththisextrae

5、vidence有了这个额外地证据；withcertainty肯定地，有把握地EmxvxOtOco在句中作状语，相当于副词.that引导宾语从句polluted过去分词作定语2.Somanythousandsofterrifiedpeoplediedeverytimetherewasanoutbreak.SixE2yXPq5terrified过去分词作定语everytime短语充当连词作用，还有themoment/minute/second;thefirst/second…lasttime;immediately/instantly/directly6ewMyirQFLeg:Thefirst

6、timeIwentabroadIcouldhardlyunderstandwhattheforeignerssaid.kavU42VRUsThemomentIsawhim,Iknewwhathadhappened.3.Itseemedthatthewaterwastoblame.be﹢动词不定式，可以表示该做或不该做地事betoblame应该负责；应受责备6/6个人收集整理仅供参考学习eg:Nooneistoleavethisbuildingwithoutthepermissionofthepolice.y6v3ALoS89Youarenottodroplitterinthispark.公

7、园里不许乱丢垃圾.M2ub6vSTnPWhoistoblameforthefire?Whoistoberesponsibleforthis?4.Onlyifyouputthesuntheredidthemovementsoftheotherplanetsintheskymakesense.0YujCfmUCwonly﹢加状语放于句首时，主句用部分倒装.eg:OnlyaweeklaterdidIreceiveananswe