Unit 1 Science and Scientists Discover Useful Structures 表语从句课件-2024-2025学年高中英语人教版（2019）选择性必修第二册+.pptxVIP

Unit1ScienceandScientists表语从句

Learningobjectives:

Learnhowtoidentifypredicativeclauses.Mastertheuseofthepredicativeclauses.Practiceusingandtranslatingthepredicativeclauses.

REVIEW

Hisdiarrheaseemssevere.Thetwopoliciesarecontradictory.Thisisawaterpump.Hisjobistohandletheproblem.

Whatdothesentenceshaveincommonintheirstructures?predicative表语是用来说明主语的身份、性质、品性、特征和状态的，表语常由名词、代词、数词、动词过去分词、动词的-ing形式、副词、介词短语、形容词、不定式和从句等来充当。Hisdiarrheaseemssevere.Thetwopoliciesarecontradictory.Thisisawaterpump.Hisjobistohandletheproblem.

twocontradictorytheoriesTheoryone:__________________causedbybadairTheorytwo:__________________causedbygermsOnetheorywasthatbadaircausedthedisease.__________________主语系动词表语从句表语从句是指______________________,紧跟在________之后，对主语进行解释、说明，使主语的内容具体化。从句在句子中充当表语系动词Whatispredicativeclause?

一、可以接表语从句系动词有：LinkingVerbs系动词be动词am,is,are感官类look，sound，smell，taste，feel，变化类变得：become、get、turn、grow；保持：keep、hold、stay、stand;仍然：remain似乎：seem、appear；证明：prove、turnout;

1.从属连词that引导的表语从句Myadviceisthatweshouldgettherebytrain.Thereasonisthattheynevergiveup.Oneideaisthatfishisthebestbrainfood.that仅起_______作用，______(有/无)词义，______(是/否)充当句子成分，通常________(能/不能)省略。连接无不不能

2.从属连词whether引导的表语从句Thequestionisifwecanfinishourwork.Thequestioniswhetherthefilmisworthwatching.Thedoctor’sdoubtiswhethershewillsurvive.whether起_________作用，意为“_______”，在句中_________(是/否)作成分。(注意：if______(能/不能)引导表语从句)。连接是否不不能

Thequestionis_________wecanrelyonhim.Heoftentellslies.Thequestionis_________wecanfinishthetaskontime,forwehaveonlythreedaysleft.Mybeliefis______________Iwillsucceedbyworkinghard.whetherwhetherthat

3.从属连词asif/asthough/because引导的表语从句Itsoundsasif/thoughsomeoneisknockingatthedoor.Shelookedasifshehadbeenhitbylightning.Itseemsasifsheweremad.Hedidnotseethefilmlastnight.Thatisbecause