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2019-2020年高中英语Unit4Astronomy thescienceofthestars教案3新课标人教版必修3Period1Grammarpoints.一.语法要点 主语从句在复合句中作主句的主语的从句叫主语从句引导主语从句的词有连词thatwhether;连接代词whowhatwhich;连接副词whenwherehowwhy等 Eg:Whichteamwillwinthematchisstillunknown. 主语从句放在句首,句子常显得笨重,因此一般把它放到句子后面,前面用引导词”it”来作主语 Eg:It’sstrangethathedidn’teyesterday.二.重点难点 1.Nobodyknewthatitwasgoingtobedifferentfromotherplanetsgoingtobedifferentfromotherplanetsgoingroundthesun. goingroundthesun为现在分词短语定语,表示一般的动作 Eg:Menbreakingthelawwillbepunished. 现在分词短语,也可表示进行的动作
2.Weatherlifewillcontinueontheearthformillionsofyearstoewilldependonwhetherthisproblemcanbesolved. formillionsofyearstoe中不定式toe作定语,与前面的名词有逻辑上的主谓关系 Eg:Sheisthelastpersontotelllies. 3.Theproblemwasthattheearthbecameviolentbecauseitwasnotclearwhetherthesolidshapewastolastornot. Theproblemwasthat…that引导表语从句...。