GRAMMAR名词性从句.pptVIP

GRAMMAR 名词性从句 1.It is known to us that he is a famous singer. 2.The thought that we might succeed excited us. 3.What he said is correct. 4.I believe it that he is honest. 5.The question is how he did it. 6. I am glad that she will come. 1、注意that 的用法 一.主语从句、表语从句、同位语从句中用的that 不能省略。 That?they?are?good?at?English?is?known?to?us all. 二.宾语从句中的连接词that有时可省有时又不可省，在以下几种情况中that不能省略： １当that宾语从句中间有插入词语,that不可省 He?judged?that ,because?he?was?a?child,?he ?did?not? understand what he had said.? ２当that?从句有并列从句时，that不能省； Everyone?knew?what?happened?and?that?she?was? worried. ３当多个that从句作并列宾语时,前面从句的that可省可不省,但最后一个that不可以省 　He knows (that) his English teacher is from England and that she has two children. ?４当that作介词宾语时，that不可省掉。如： The?reason?lies?in?that?she?works?harder? than?the? others?do 2.注意同位语从句和定语从句的区别： A.定语从句中关系词代替先行词在从句中做成分;而在同位语从句中连接词不做成分。  B.定语从句是对前面名词进行修饰,同位语从句是对前面的名词进行解释说明。 1 The news that our team has won the final match is encouraging. 2 The news that you told us is really encouraging.  3、whether和if的用法 ①whether 可用于介词之后. It?all?depends?on?whether?they?will?come?back ? ② whether可用于不定式之前 I?have?not?decided?whether?to?go?or?not. ③后面直接跟or?not?时用whether。.. ?I?didn’t?know?whether?or?not?he?had?arrived?in Wuhan? 4、what\who\which?+?ever和no?matter?+?what\who\which的区别： 5、名词性从句中主句和从句的时态一致、主谓一致、语序 ? (1) 一个主语从句做主语，谓语动词常用单数：如果由and?连接两个或两个以上的主语从句做主语时，谓语动词用复数； (2) 由两个或多个连接词引导一个主语从句，谓语动词用单数。如：?When?the?meeting?will?begin_____not?been?decided?yet. When?they?will?start?and?where?they?go?___not?been?decided? yet.? When?and?where?the?meeting?will?begin?___not?been?decided.? 6.关于doubt 肯定句中doubt后跟if/whether，否定句中doubt后面跟that. sb. doubts if/whether….. sb. doesn’t doubt that ……. There is no doubt that ……. There is no doubt that he will win the game. * ④主语从句，表语从句，同位语从句句首中只能用whether，宾语从句中则两者都可Whether?the?meeting?will?be?put?off?has?not?been?decided?yet.?? ? ⑤whether可引导一个让步状语从句表示“不管”、“无论”，而if不能。