辽宁地区高二英语语法 it课件.ppt

单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,It,1,指代时间，天气，距离，日期等。,Its about an hours walk from here to the village.,It was nearly midnight when I arrived home.,2,指代,this,that,Whats this in English?,Its a computer.,3,指代无生命吴或性别不明，身份不明的人,What a lovely baby,isnt it?,Someone is knocking at the door,who can it be?,4,指代上文，即事件,Jim has left.Have you heard of it?,I told him to read a lot,but it didnt help.,5,形式主语，代替不定式，动名词，从句,It is necessary to keep the balance of nature.,It is no use crying over spilt milk.,It is well-known that Taiwan belongs to china.,6,形式宾语，,代替不定式，动名词，从句、,I found it necessary to tell the truth.,I think it is no use arguing with him over it.,You must keep it in mind that you are a student.,7.,强调句型,It was in the street that I saw him yesterday.,Where was it that I saw him yesterday?,She didnt go to bed until her father came back.,1),Not until,her father came back,did she go,to bed.,2),It was not until,her father came back,that,she went to bed.,It was not _ she took off her dark glasses _ I realized she was a famous film star.A.when,that B.until,when C.until,that D.when,then,Exercises,2)It was not until _ that _ to prepare his lessons.,A.did his father come in,the boy began B.did his father come in,did the boy begin C.his father came in,did the boy begin D.his father came in,the boy began,8,固定句型。,1 Hate/like it when,讨厌喜欢某人做,2 See to it that,务必做,3 Take it for granted that,认为想当然,4 Owe it to,sb,.that,把归功于某人,5 It occurred to,sb,that,某人想起,6 It happened that,碰巧,7 It appeared/seemed that,似乎,8 It is said/suggested/reported/thought that,据说,9 It turns/turned out that,原来是,1.I like it when you help others.,2.See to it that you dont catch a cold.,3.He took it for granted that I should support him.,4.He owed it to the doctor that he was still alive.,5.It occurred to him that he should leave.,6.It so happened that there was nobody,7.It appeared that he didnt tell me the truth.,8.It is suggested that we should hold a speech,9.It turns out that the,whether is fine,9,，常用句型,It will/be was+,时间段,+before.,要过过了多才,It is/has been+,时间段,+since did,自从,.,已经,It was+,时间段,+since had done,It is/was+,时间点,+when,当时时间是,It is/was+,介词,+,时间点段,+that,强调句型,9,，易错句式,:,下列句式用,there be,There is no need doing/for,没有必要,There is no possibility that,没有可能,there is some difficulty/trouble in,做,有困难,there is no doubt that,无疑,There is a chance that,做,有可能,1,there is no need waiting for his answer.,2.There is no possibility that the boy will win the prize.,3.I dont know whether there is any chance of arriving on time.,4.There is some difficulty in explaining this to the boy.,Revision,It was not until 1920 _ regular radio broadcast began.,A while B which C that D since,2.Many people now make _a rule to buy cards for their friends before Christmas.A.themselves,B.it C.that,D.this,3._ is very clear to everyone that hes round and tall like a tree.A.This B.What C.That D.It,4.In the United States,bus travel doesnt cost much as train travel,_?A.dont they,B.does it C.do they,D.doesnt it,5.Has _ been decided when we are to hold the sports-meeting?A.that,B.this C.it D.what,6.Someone is at the door,who is_?A.this B.that C.it,D.he,7.-Do you want a new watch?,-Yes,I want _.,A it B that C one D what,8.My home is in that tall building over there.,_?,A.Can it see,B.Can see it C.Can be seen it,D.Can it be seen,9._ is a fact that English is being accepted as an international language.A.that,B.this C.it,D.what,10.Did Tom call me while I was out?,Yes,it was _that called you.A.him,B.he C.who,D.whom,11.I dont think _ difficult for a Chinese student to master a foreign language within five years A.that B.it C.too,D.very,12.Its the second time you _,late this week.A.arrive,B.arrived,C.have arrived,D.had arrived,