高中必修3英语Unit5第三课时教案

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1、Nounclauses教学目标：1.学生能够识别出主语从句2．学生能够适当运用主语从句的主要连接词3．学生能够翻译简单的主语从句I．Revision：predicativeclausesandobjectclause听一首歌，补全歌词AlthoughlonelinesshasalwaysbeenafriendofmineI'mleavingmylifeinyourhandsPeoplesay①I'mcrazyandthatIamblindRiskingitallinaglance②HowyougotmeblindisstillamysteryIcan'tget

2、yououtofmyheadDon'tcare③whatiswritteninyouhistoryAslongasyou'reherewithmeIdon'tcare④whoyouare，whereyou'refrom，whatyoudidAslongasyoulovemeWhoyouareWhereyou'refromDon'tcare⑤whatyoudidAslongasyoulovemeEverylittlethingthatyouhavesaidanddoneFeelslikeit'sdeepwithinmeDoesn’treallymatterify

3、ou'reontherunItseemslike（asif）⑥we'remeanttobe找出其中的宾语从句和表语从句Objectclauses_________________________Predicativeclauses_____________________Leadin:比较主语，引出主语从句Howyougotmeblindisstillamystery（谜）ThecauseisstillamysteryII．LearningsubjectiveclausesStep1划出主语从句,让学生初步识别主语从句Howyougotmeblindissti

4、llamystery.Thatshehadwonthefirstprizemadethegirlveryhappy.Whathesaidisnottrue.Whattheyneedisadictionary.Step2归纳文中的主语从句，总结主语从句的位置特点。阅读第四单元的课文，找出文中的主语从句，并进行小组讨论。1.Whatitwastobecomewasuncertainuntilbetween4.5and3.8billionyearsago.2.Whatisevenmoreimportantisthatastheearthcooleddown,wate

5、rbegantoappearonitssurface.3.Whatmanyscientistsbelieveisthatthecontinuedpresenceofwaterallowedtheearthtodissolveharmfulgasesandacidsintotheoceansandseas.4.Whytheysuddenlydisappearedstillremainsamystery.5.Sowhetherlifewillcontinueontheearthformillionsofyearstocomewilldependonwhethert

6、hisproblemwillbesolved.1）先划分句子，归纳出主语从句所在的位置，1．Whatitwastobecomewasuncertainuntilbetween4.5and3.8billionyearsago.2．Whatisevenmoreimportantisthatastheearthcooleddown,waterbegantoappearonitssurface.3．Whatmanyscientistsbelieveisthatthecontinuedpresenceofwaterallowedtheearthtodissolvehar

7、mfulgasesandacidsintotheoceansandseas.4．Whytheysuddenlydisappearedstillremainsamystery.5．Sowhetherlifewillcontinueontheearthformillionsofyearstocomewilldependonwhetherthisproblemwillbesolved.根据以上主语从句实例，总结主语从句的位置特点：主语从句通常位于句首主语的位置。Step3学习主语从句的主要连接词给出一组主语从句找出引导词。Whowillgoisnotimportan

8、t.Whichisthebestisn