名词性从句多媒体教学课件.pptVIP

GRAMMAR名词性从句1.Itisknowntousthatheisafamoussinger.2.Thethoughtthatwemightsucceedexcitedus.3.Whathesaidiscorrect.4.Ibelieveitthatheishonest.5.Thequestionishowhedidit.6.Iamgladthatshewillcome.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?usall.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?understandwhathehadsaid.?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Heknows(that)hisEnglishteacherisfromEnglandandthatshehastwochildren.?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?do2.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。

1Thenewsthatourteamhaswonthefinalmatchisencouraging.

2Thenewsthatyoutoldusisreallyencouraging.

3、whether和if的用法

①whether可用于介词之后.It?all?depends?on?whether?they?will?come?back?②whether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?inWuhan?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.?IfIhaveenoughtime,Iwillplayfootball.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.?②no?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.?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?be