Unit 5 Discover Useful Structures 主语从句（ppt课件）-2022新人教版（2019）《高中英语》选择性必修第一册.pptx

1、Unit5主语从句01030204content宾语从句主语从句表语从句同位语从句陈述句语序一般疑问句语序特殊疑问句语序同位语从句和定语从句的区别PART 01陈述句语序一般疑问句语序特殊疑问句语序 我不知道他们要去打架。我不知道他们是否要去打架。我不知道他们要去和谁打架。I dont know whom they are going to have a fight with.I dont know whether they are going to have a fight.I dont know that they are going to have a fight.语序 他们要去打架。T

2、hey are going to have a fightPART 02宾语从句例句（1）陈述句作宾语从句（引导词：that常省略，在从句中不做句子成分，只起引导作用）I realized(that)he was an old friend of mine.I know(that)he is the top students in his class.that 不可省略的情况：宾语从句是由两个并列的句子组成。第一个that可省略，第二个that不可省略e.g.I know(that)he is a good student and that he studies hard.例句（2）一般疑问句

3、作宾语从句（引导词：whether/if通常可互换，在从句中不做句子成分，只起引导作用）只能用whether不能用if的情况l It depends on whether it will be fine tomorrow.（接在介词后）l I dont know whether he will come or not tomorrow.（与or not连用时：书面语或正式场合用whether；口语或非正式场合 用whether或if都可以whether or not；if or not）例句拓展 宾语从句该用什么时态用什么时态；条件状语从句或时间状语从句需符合主将从现 I dont know

4、whether he will come.If he comes,I will tell you.（条件状语从句）I dont know when he will come here tomorrow.When he comes,I will tell you.（时间状语从句）例句（3）特殊疑问句作宾语从句（连接词在从句中即起引导作用，又做句子成分）主语，宾语，表语，定语：what;who;whom;which;whose;wh-ever;状语：how;when;where;why;how “缺什么补什么”原则缺主语，指人用_，指物用_缺宾语，指人用_，指物用_缺时间状语用_；地点状语用_；原

5、因状语用_；方式状语用_；定语用_；什么都不缺用_，缺“是否”_whowhatwho/whomwhatwhenwherewhyhowwhich/whose主语从句的连接词thatwhether/if例句例：1.What we dont have always attracts us.2.Who will be the president is still unknown.3.Whenever you come is welcomed.4.Ill take whoever wants to go.5.When well start tomorrow will be told soon.6.Why

6、 he came here is not known.7.How this happened is not clear to anyone.例句注意（主系表结构，陈述句语序）Whats wrong with you?Whats the matter with you?whats the trouble with you?-He asked what was wrong/the matter/the trouble with Li Ping.-He asked what wrong/the matter/the trouble was with Li Ping.PART 03主语从句表语从句同位

7、语从句1.陈述句语序（that 一般不省略）（1）宾语从句：He suggested(that)Tom(should)have a rest.主语从句：It was suggested that Tom(should)have a rest.（形式主语与真实主语）表语从句：His suggestion was that Tom(should)have a rest.同位语从句：His suggestion that Tom(should)have a rest was accepted by us.（that 在同位语从句中不充当成分）2.一般疑问句语序（常用whether）（1）句型转换 主

8、语从句：Whether he will come or not tomorrow is not known/clear.表语从句：The question is whether he will come or not tomorrow.同位语从句：The question whether he will come or not tomorrow is unknown/clear.2.一般疑问句语序（常用whether）（2）注意 I have no idea that同位语从句 I dont know that宾语从句 There is no doubt that同位语从句 I dont do

9、ubt that宾语从句 I doubt that宾语从句 There is some doubt that同位语从句 Truth/fact/news/evidence/information that.同位语从句2.一般疑问句语序（常用whether）（2）注意 I have no idea that同位语从句 I dont know that宾语从句 There is no doubt that同位语从句 I dont doubt that宾语从句 I doubt that宾语从句 There is some doubt that同位语从句 Truth/fact/news/evidence

10、/information that.同位语从句PART 04同位语从句和定语从句的区别同位语从句和定语从句的区别 The news that Class 2 won the match excited students.The news(that)you told me just now excited students.（1）the reason is.The reason is that he got up late.The reason is because he got up late.The reason is why he got up late.同位语从句和定语从句的区别（2）the reason.The reason that he explained to the teacher was that he got a flat tyre.（定语从句）The reason why he was late for school was that he got a flat tyre.（定语从句）The reason that he had a flat tyre was his excuse.（同位语从句）Thanks