主語(yǔ)從句優(yōu)秀PPT課件

1、 Noun Clauses -By Debby1CHENLIGrammar What part does the underlined part serve as in each sentence? A tree has fallen across the road. You are a student. To find your way can be a problem. Smoking is bad for you.2CHENLI “How do you do?” is a greeting. What she said is not yet known. That we shall be

2、 late is certain. It is certain that we shall be late. 3CHENLI 主語(yǔ)從句主語(yǔ)從句（Noun Clauses as the Subject） 定義：定義： 用作主語(yǔ)的從句叫主語(yǔ)從句，它是名用作主語(yǔ)的從句叫主語(yǔ)從句，它是名詞性從句之一。引導(dǎo)主語(yǔ)從句的連接詞有：詞性從句之一。引導(dǎo)主語(yǔ)從句的連接詞有：連詞連詞that, whether；連接代詞連接代詞who, what和和which；連接副詞連接副詞when, where, how和和why。4CHENLI主語(yǔ)從句的連接詞主語(yǔ)從句的連接詞 連詞連詞that(無(wú)詞義無(wú)詞義, 不作成分不作成分

3、, 不能省不能省略略);whether(是否是否),if不能位于句首。不能位于句首。 That he will come and help us is certain. Whether we will succeed is still a question. It is not known if he will come.注意注意: : 已確定的事由已確定的事由thatthat引導(dǎo)引導(dǎo); ; 沒(méi)決定的事由沒(méi)決定的事由whetherwhether引導(dǎo)引導(dǎo). . 5CHENLI主語(yǔ)從句常用主語(yǔ)從句常用it it作形式主語(yǔ)放句首作形式主語(yǔ)放句首因而我們常見(jiàn)到這種句式：因而我們常見(jiàn)到這種句式：It+b

4、e+n./adj/-ed從句（從句（that, whether,etc.)例：例：Its a pity that you should have to leave. = That you should have to leave is a pity.It is great that I have a teacher like you.= That I have a teacher like you is great.6CHENLI2)連接代詞連接代詞who ，what ，which, whatever, whichever, whoever 充當(dāng)成分，有具體意義充當(dāng)成分，有具體意義What s

5、eems easy to some people seems difficult to others.Which side will win is not clear. 3)連接副詞連接副詞when，where， how， why等。等。Why he did it remains a mystery.When they will start is not known yet.How he became a great scientist is known to us all.7CHENLI2.位置：位置： 主語(yǔ)從句可以前置，也可以主語(yǔ)從句可以前置，也可以后置。用后置。用it做形式主語(yǔ)，而把主語(yǔ)

6、從做形式主語(yǔ)，而把主語(yǔ)從句，在句末，常用下面幾種句型。句，在句末，常用下面幾種句型。1）It + be + 表語(yǔ)表語(yǔ) +主語(yǔ)從句主語(yǔ)從句表語(yǔ)：（名詞，表語(yǔ)：（名詞， 形容詞，過(guò)去分詞）形容詞，過(guò)去分詞）It is a fact (a shame, a pity, good news) thatIt is still uncertain whether he is coming or not.It is an honour that I was invited to attend the meeting.8CHENLIIt is certain that she will do well in

7、her exam.It is true that I told her everything.It is said that Mr. Green has arrived in Beijing.It is reported that China has sent another manmade earth satellite into orbit.9CHENLI2）It+不及物動(dòng)詞不及物動(dòng)詞+主語(yǔ)從句主語(yǔ)從句It seemed (happened, doesnt matter, has turned out) that It happens that they were absent.It se

8、ems that Alice is not coming to the party at all.It doesnt matter whether she will come or not.It makes no difference where we shall have the meeting.10CHENLI3) It +及物動(dòng)詞（被動(dòng)語(yǔ)態(tài)）及物動(dòng)詞（被動(dòng)語(yǔ)態(tài)）+主語(yǔ)從句主語(yǔ)從句It has been decided that the exhibition will not open on Sundays.注意注意:1）主語(yǔ)從句在句首時(shí)，必須由連接詞引導(dǎo)，）主語(yǔ)從句在句首時(shí)，必須由連接詞

9、引導(dǎo)，不能省略這些連接詞；但是如果用不能省略這些連接詞；但是如果用it做形式做形式主語(yǔ)，而把主語(yǔ)從句放在句末時(shí)，從屬連詞主語(yǔ)，而把主語(yǔ)從句放在句末時(shí)，從屬連詞that可以省略?？梢允÷浴?1CHENLI4) . 用于用于It is important / natural / necessary / impossible that.句型中句型中, 主語(yǔ)從句應(yīng)使用虛主語(yǔ)從句應(yīng)使用虛擬語(yǔ)氣擬語(yǔ)氣, 謂語(yǔ)動(dòng)詞用謂語(yǔ)動(dòng)詞用“should + 動(dòng)詞原形動(dòng)詞原形”的的形式形式, should有時(shí)可以省略。有時(shí)可以省略。5) 在在It + be+suggested/advised/ordered/reques

10、ted/ insisted/required 中中, that從句的謂語(yǔ)也從句的謂語(yǔ)也應(yīng)該用應(yīng)該用“should + 動(dòng)詞原形動(dòng)詞原形”的形式的形式, should有時(shí)可以省略。有時(shí)可以省略。12CHENLI(1)主語(yǔ)從句中用陳述語(yǔ)序主語(yǔ)從句中用陳述語(yǔ)序What she is afraid of is their taking her to Paris. ( What is she afraid of Wrong )(2)主語(yǔ)從句后謂語(yǔ)動(dòng)詞用三人稱(chēng)單數(shù)主語(yǔ)從句后謂語(yǔ)動(dòng)詞用三人稱(chēng)單數(shù)That they havent phoned is strange.(3)that引導(dǎo)的主語(yǔ)從句中，引導(dǎo)的主語(yǔ)從

11、句中，that不可不可被省略被省略That price will go up is certain.13CHENLI 4. what 與與that 在引導(dǎo)主語(yǔ)從句時(shí)的在引導(dǎo)主語(yǔ)從句時(shí)的區(qū)別區(qū)別 what 引導(dǎo)主語(yǔ)從句時(shí)在句時(shí)在從句中充當(dāng)引導(dǎo)主語(yǔ)從句時(shí)在句時(shí)在從句中充當(dāng)句子成分，如主語(yǔ)賓語(yǔ)表語(yǔ)，而句子成分，如主語(yǔ)賓語(yǔ)表語(yǔ)，而that 則則不然。例如：不然。例如： 1) What you said yesterday is right. 2) That she is still alive is a consolation. What在此引導(dǎo)主語(yǔ)從句,又做said的賓語(yǔ)That 只起連接作用,不做

12、成分14CHENLIpractice15CHENLI1.Where shall we spend the holiday isnt decided.2.You have made a mistake is a fact.3.That is certain that we can win.4.No matter who leaves the room last ought to turn off the lights.5.It is important that a student learns a foreign language.we shallThat you haveIt isWhoev

13、ershould learn改錯(cuò)練習(xí)改錯(cuò)練習(xí)16CHENLIDescribe your mother with your partner.Suggested structures:What my mother likes is_.What my mother doesnt like is _Whether my mother would feel happy is _Why my mother would be happy is _Why my mother feels upsad is_17CHENLI 1. _ you dont like him is none of my busines

14、s. 2. _ he said at the meeting astonished everybody present3. _ the 2000 Olympic Games will be held in Beijing is not known yet.4. _ well go camping tomorrow depends on the weather.5. _ leaves the room last ought to turn off the lights. ThatWhatWhetherWhetherWhoever18CHENLI 6. _ is a fact that Engli

15、sh is being accepted as an international language.7.It worried her a bit _ her hair was turning grey. 8. The Foreign Minister said, “_ is our hope that the two sides will work towards peace.”9. After Yang Liwei succeeded in circling the earth, _ our astronauts desire to do is walk in space. ItthatIt

16、what19CHENLI1.I hate _ when people talk with their mouths full（MET98） A. it B. that C. these D. them 2. I feel _ strange that he should be so careless. A. / B. it C. that D. how 3. It worried her a bit _ her hair was turning grey.（MET92） Awhile B. that Cif Dfor20CHENLI1. _ made the school proud was_

17、 more than 90 of the students had been admitted to key universities. A. What; because B. What ; thatC. That ; what D. That ; because21CHENLI2. _ we will go camping tomorrow depends on the weather. A. If B. Whether C. That D. Where3 _ that they can pass the written exam this time. A. That is hoped B.

18、 It is hoped C. It hopes D. That hopes22CHENLI 5. _ leaves the room last ought to turn off the lights. A. Anyone B. The person C. Whoever D. Who 6. _ is a fact that English is being accepted as an international language. A. There B. This C. That D. ItCD23CHENLI 7. _ in the newspaper that the price o

19、f food will go up. A. It says B. It is said C. It has said D. He is said8. It worried her a bit _her hair was turning grey. A. while B. that C. if D. forBB24CHENLI 9. There is no doubt _. A. that Mr. Hansen is in good health B. whether is Mr. Hansen healthy C. if Mr. Hansens health was returning D.

20、whether Mr. Hansen in healthA25CHENLI 10. The Foreign Minister said, “_ our hope that the two sides will work towards peace.” A. This is B. There is C. That is D. It is D26CHENLI 11. It is necessary that a college student _ at least a foreign language. A. masters B. should master C. mastered D. will

21、 masterB27CHENLI It 作形式主語(yǔ)代替主語(yǔ)從句，主要是為了平衡句作形式主語(yǔ)代替主語(yǔ)從句，主要是為了平衡句子結(jié)構(gòu)，主語(yǔ)從句的連接詞沒(méi)有變化。而子結(jié)構(gòu)，主語(yǔ)從句的連接詞沒(méi)有變化。而it引導(dǎo)的強(qiáng)引導(dǎo)的強(qiáng)調(diào)句則是對(duì)句子某一部分進(jìn)行強(qiáng)調(diào)，無(wú)論強(qiáng)調(diào)的是調(diào)句則是對(duì)句子某一部分進(jìn)行強(qiáng)調(diào)，無(wú)論強(qiáng)調(diào)的是什么成分，都可用連詞什么成分，都可用連詞that。被強(qiáng)調(diào)部分指人是也可。被強(qiáng)調(diào)部分指人是也可用用who/whom。例如：。例如： It is a pity that you didnt go to see the film. It doesnt interest me whether you succeed or not. It is in the morning that the murder took place. It is John that b