Download presentation
Presentation is loading. Please wait.
1
GRAMMAR 名词性从句
2
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.
3
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.
4
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
5
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.
6
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
7
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。If表示“如果”时,不能用whether。 Whether he comes or not, we will begin our party on time. If I have enough time, I will play football.
8
4、what\who\which + ever和no matter + what\who\which的区别:
①what\who\which + ever可引导名词性从句和让步状语从句Whoever breaks the rule must be punished. Whatever you do, you must do it well. ② no matter + what\who\which只能引导让步状语从句。如: No matter who breaks the rule, he must be punished.
9
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. has have has
10
宾语从句中主句和从句的时态保持一致,但如果从句中表示提示的是客观现象,虽然主句是过去时态,从句仍用一般现在时。如:
The teacher told us that light travels at a very high speed. 名词性从句在句中要用陈述句语序。如: He asked me where we should meet.
11
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.
12
Thank you !
Similar presentations