it作形式主语、形式宾语、it开头的短语市公开课金奖市赛课一等奖课件

1、语法辅修刘爽第1页2Strength & courageIt takes strength to fit in.It takes courage to stand out.It takes strength to feel a friends pain.It takes courage to feel your own pain. It takes strength to hide your own pain.It takes courage to show them.It takes strength to survive.It takes courage to live.适应环境需要力量。

2、与众不一样需要勇气。感觉朋友痛需要力量。感觉自己痛需要勇气。隐藏自己痛需要力量。展示自己痛需要勇气。生存需要力量。生活需要勇气。第2页It作形式主语 动词不定式，动名词或主语从句作主语时，通常把它们放在谓语动词前，而用it作形式主语，放到句首。第3页10/10/It作形式主语1. It + be + 形容词+主语从句It is uncertain whether he can come to Jennys birthday party or not. 第4页10/10/It作形式主语2. It + be + 名词词组(+for sb.) + 主语从句这类名词有：a fact, a pity,

3、a shame, an honor，a question等。Its a pity that you missed the exciting football match. It remains a question whether he will come or not. 第5页10/10/It作形式主语3. It + be + 过去分词 + 主语从句这类过去分词有：announced, believed, expected, hoped, decided, reported, said, shown等。It is reported that 16 people were killed in

4、the earthquake. It is not decided who will give the operation to the patient. 第6页10/10/It 作形式主语4. It + 不及物动词(seem, appear, happen, occur 等) + 主语从句It seemed that he didnt tell the truth. It happened that I was out when he called. ItneveroccurredtomethatIwouldtravelto America.Itappearsthattheywont bea

5、bletocomeat all.第7页10/10/It 作形式主语5. It + be + 形容词 +（for sb.）+ 动词不定式 惯用形容词easy, difficult, hard, important, possible，wise等作表语Its necessary for the young to master two foreign languages. It is unwise to give the children whatever they want. 第8页10/10/It 作形式主语6. It + be + 形容词 + of sb. + 动词不定式形容词：kind, n

6、ice stupid, clever, foolish, polite, impolite, silly, selfish, considerate等Its very kind of you to help me with the work. =You are kind to help me. It seemed selfish of him not to share his dictionary with others. =He seemed selfish not to share his dictionary with others. 第9页It 作形式主语7. It + be +名词词

7、组+ 动词不定式，如： It is not a good habit to stay up too late. 10/10/第10页It 作形式主语8. It + be + 名词或形容词 + 动名词，名词和形容词：good, no good, no use, a waste of, useless, senseless, no hope, hopeless等Its a waste of time talking to her any more. It is no use arguing about the matter with him. 10/10/第11页It 作形式主语9. It + t

8、ake ( sb. )+ 时间（金钱）+ 动词不定式It took the workers almost three years to finish building the dam. It will take a whole day to get to the top of the mountain on foot.10/10/第12页练习题1. In fact， is a hard job for the police to keep order in an important football match. A. this B. that C. there D. it10/10/It +

9、 be + 名词词组（+ for sb.）+ 动词不定式D第13页练习题2. It is never too late to learn, _? A. is it B. isnt it C. does it D. doesnt it 10/10/BIt + be + 形容词+ 动词不定式第14页练习题 is a fact that English is being accepted as an international language.A. There B. This C. That D. It 10/10/It + be + 名词词组+ 主语从句D第15页练习题4. _ will tak

10、e you a lot of time to find him in the crowd. A. It B. I C. We D. They 10/10/It + take ( sb. )+ 时间（金钱）+ 动词不定式A第16页练习题1.(1)_ is known to us all is that English is a useful language. (2)_ is known to us all, English is a useful language. (3)_ is known to us all that English is a useful language. A. It

11、 B. What C. That D. As 10/10/BDAIt + be + 过去分词+ 主语从句 第17页练习题2.(1)It is kind _ you to do so. (2)It is easy _ you to do so. A. to B. for C. of D. with 10/10/CBIt + be + 形容词 + for sb. + 动词不定式It + be + 形容词 + of sb. + 动词不定式第18页练习题3.(1)_ is a fact that English is being accepted as an international languag

12、e. (2)_ is no need for us to discuss the problem again since it has already been settled. (3)_ is unnecessary for you to explain it to us any more. A. This B. That C. It D. There 10/10/CDCIt + be +名词词组 + 主语从句It + be + 形容词 + （for sb.）+ 动词不定式第19页以It开头句型第20页以it开头句型1.it+特定动词+asif从句特定动词：appear,seem等。Itap

13、pearsasifyouareverytired.10/10/第21页以it开头句型2. ithasbeen/is+一段时间+since从句ItissixyearssinceIbegantoworkhere.IthasbeensixyearssinceIworkedhere.10/10/第22页以it开头句型3. it+be+一段时间+before从句Itwontbealongtimebeforewefinishcooking.Itwasfourdaysbeforetheyfoundthelostchild.10/10/第23页以it开头句型4. itis(high)time+that从句=i

14、tis(high)timeforsb.todosth从句谓语要用普通过去时，也可用shoulddoItishightimethatIwenttoseemymotherinthehospital.Itistimeforyoutodoyourhomework.10/10/第24页以it开头句型5. itis/was+强调内容+that/who从句ItisinthestreetthatIcameacrossMr.Li.Itwasmyfriendwhopickedmeupatthestation.10/10/第25页练习题1.(1)It was eight oclock _ he left here.

15、 (2)It is at eight oclock _ he will leave here. (3)It is eight hours _ he left here. (4)It will be eight hours _ we meet again. A. when B. that C. before D. since 10/10/ABDC第26页练习题2.(1)Its good _ you to take a walk after supper every day. (2)It was really stupid _ him to refuse the invitation. A. of

16、 B. to C. for D. at 10/10/CA第27页练习题3.(1)Was it on Nov. lst, _ the famous scientist was born? (2)Was it Nov. 1st, _the famous scientist was born? A. in which B. on that C. that D. when 10/10/CD第28页练习题4.(1)It is about ten days _ he returned home. (2)It was ten days ago _ he left home. A. before B. tha

17、t C. since D. when10/10/CD第29页练习题5.(1)It was not until I had read your letter _ the truth. (2)Not until I had read your letter _ the truth. A. did I learn B. I didnt learn C. that I learned D. that I had learned10/10/CA 第30页练习题10/10/有必要把这一切都告诉他父亲吗?熬夜没有好处。很显然，他读过这本书。他说什么没关系。Is it necessary to tell hi

18、s father everything?Its no good sitting up too late.It is quite clear that he has read the book.It doesnt matter what he says.第31页It作形式宾语 当不定式（短语）、动名词（短语）或从句在某个句子中作宾语时，惯用it作形式宾语.第32页It 作形式宾语有宾语补足语情况10/10/第33页It 作形式宾语 it代替不定式短语 表示 “感觉”/“对待”动词+ it +形容词/名词 + 不定式短语 I find it pleasant to work with him.Th

19、ey felt it difficult to finish the work in such a short time. She thinks it her duty to help us. I think it my honor to be invited to speak here.Tom didnt find it difficult to write letters in Chinese.All these noises made it impossible for me to go on with the work.10/10/第34页It 作形式宾语 it代替动名词短语The p

20、rofessor considers it no good reading without understanding. Do you consider it any good trying again? He found it useless( no use) arguing with him. He thought it absolutely senseless attempting the impossible. I dont think it worthwhile going to such a place.10/10/第35页It作形式宾语 it代替宾语从句We all though

21、t it a pity that the conference should have been cancelled. I took it for granted that they were not coming. Ill see to it that everything is ready in time.10/10/第36页练习题1. Idontthink_possibletomasteraforeignlanguagewithoutmuchwork.A.thisB.thatC.itsD.it10/10/Dit代替不定式短语 第37页It作形式宾语没有宾语补足语情况10/10/第38页I

22、t 作形式宾语1. 动词itwhen / if 从句常见动词appreciate, enjoy, like, dislike, love, hate, preferWe would much appreciate it if you could do us that favor. Id prefer it if I didnt have to finish the work. 10/10/第39页It作形式宾语2. 动词+ it + that从句。常见动词like, take, have, putI take it that they will succeed sooner or later. The newspapers have it that some Japanese firms have gone bankrupt. 10/10/第40页It作形式宾语3.动词 + it + 介词短语 + that从句。常见短语bring it to ones attention; owe it to sb; take it for granted I owe it to you that I finished my work in time. Dont take it for granted that they w