课件18张PPT。 以形式主语it引导的句型句型1. It?(so)?happened(chanced)?that?+clause.?=?sb.?happened?/chanced?to?do?sth.?=sb.did?sth.?by?
chance
当我到那儿时,碰巧他不在
It?happened?that?he?was?out?when?I?got?there.
=He?happened?to?be?out?when?I?got?there .
=It?chanced?that?he?was?out?when?I?got?there .
=He?was?out?by?chance?when?I?got?there.? 句型2. ?done(还有动词appear等可这样使用) It?seems?that?sb.?do/?be?doing/?have?done/?had?done=?Sb.?seems?to?do/?be?doing/?have?done/to?be?done/to?have?been
如:他好象以前去过北京 It?seemed?that?he?had?been?to?Beijing?before .
=He?seemed?to?have?been?to?Beijing?before.? 句型3. It?is?/?was+被强调的部分+that(who)+剩余的部分.如:
1.直到他回来我才睡觉。(一定要注意被强调句型中的谓语动词否定的转移)
2.只因为他有病了今天没有来上学。 It?wasn't?until?he?came?back?that?I
?went?to?bed.
?It?was?because?he?was?ill?that?he
?didn't?come?to?school?today. (只能用because而不能用for,?as?或since)? 3.?我确实是个学生。 It?is?I?who?am?a?student. (句中am不能用are来代替。) 句型4. It?is?high?time?(time/?about?time)+?(that)?主语+should?do?/?did+其它。(从句中的谓语动词用的是虚拟语气。)如:?
我们该回家了。 It?is?high?time(?that?)we?should?go?/?went?home. 句型5. It?is?/?was?said?(?reported…)+that+从句.?如:
?据说他读过这篇小说 .
It?was?said?that?he?had?read?this?novel .
=He?was?said?to?have?read?this?novel.? 句型6. It?is?impossible?/?necessary/?strange…that?clause.(从句中的谓语用should+do?/?should?have?done,其形式是虚拟语气。)如:
?真奇怪,他这次考试没有及格。 It?is?strange?that?he?should?have?failed
?in?this?exam. 句型7. It?is?+?a?pity/?a?shame…that?clause.(注意从句中的谓语动词用should?do或should?have?done的形式,但should可以省略。)如:? 他直到电影结束才回来。他没有看到这部电影真可惜。? He?didn't?come?back?until?the?film?ended.
?It?was?a?pity?that?he?should?have?missed
?this?film. 句型8. It?is?suggested?/?ordered/?commanded?/…that?+clause.(从句的谓语动词用should?do,?但should可以省略。)如:
? 有人建议推迟会议。? It?is?suggested?that?the?meeting?
should?be?put?off. 句型9. It?is/was+表示地点的名词+where+从句。(注意本句不是强调句型,而是以where引导的定语从句。)如:
? It?was?this?house?where?I?was?born.请比较:It?was?in?this?house?that?I?was?born(后一句是强调句型。)? 句型10. It?is?/?was?+表示时间的名词+when+从句。(注意本句型也不是强调句型,而是以when引导的定语从句。)如:
? It?was?1999?when?he?came?back?from?
the?United?States.?请比较:It?was?in?1999?that?he?came?back?from
?the?United?States.? ?句型11. It?is?well-known?that+从句。如:? 众所周知,她是个知识渊博的妇女。? It?is?well-known?that?
she?is?a?learned?woman 句型12. It?is?+段时间+since+主语+did.?请比较:? It?was?+段时间+since+主语+had?done.?如:
?他已经离开这儿五年了
注意下列句型的翻译 It?is?five?years?since?he?lived?here. It?is?five?years?since?he?______here. It?was five?years?since?he ________ here. left had left他从这儿搬走已经有五年了 句型13. It?+谓语+段时间+before+主语+谓语.(?before引导的是时间状语从句。) 如:
1.?三个小时之后他才能回来。
2.没有多久那个国家的人民就起义了。 It?will?be?three?hours?before?he?_______back comesIt?wasn't?long?before?the?people?in
that?country?rose?up. 句型14. It?is?+形容词(possible,?impossible,?necessary等)?+for+?sb.+?to?do.?如:
?我明天之前完成此工作是不可能的。 It?is?impossible?for?me?to?finish
?this?work?before?tomorrow. 句型15. It?is?+(心理品质方面的)形容词+of?+?sb.?+to?do.=?主语+?be?+形容词+to?do.(常用的形容词有:kind,?stupid;?foolish,?good,?wise等。)如:?
你真好给我提供了帮助。? It?is?kind?of?you?to?help?me.=You?are?kind?to?help?me.