it的用法公开ppt课件

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,s time for class.,It,s on her desk.,It,is Miss Qi who is rather careless.,It,is very important for me to be a careful person.,Its time for class.Its on he,1,The use of it,The use of it,2,-What do you think of,the movie,?,-_ is,one of the best movies that Ive seen.,It,-What do you think of the mov,3,Whos the lovely baby?,My father is Mr.Black.,_is,Mr.Blacks.,It,My father is Mr.Black._is Mr,4,-,_ is very,lovely.,-,How do you find the dog?,It,-_ is very lovely.-How,5,It,can be used as personal,pronouns,referring to the person,animal or matter mentioned above,or the person whose gender you are not sure of.,summary1,It,6,_ was a sunny day.Peter decided to go for a walk to the park,though _ was two miles away._ was so comfortable to walk on the street.,it,It,It,_ was a sunny day.Pet,7,Eg:,It,was a sunny day.Peter decided,to go for a walk to the park,though,it,was two miles away.,Summary 2,It,can be used as impersonal,pronouns to talk about time,date,distance or weather and so on.,Eg:It was a sunny day.Pe,8,The Parkers bought a new house but _ will need a lot of work before they can move in.,A.they B.it C.one D.which,2.Weve been looking at houses but havent found _ we like yet.,A.one B.ones C.it D.them,3.Im moving to the countryside because the air there is much fresher than _ in the city.,A.ones B.one C.that D.those,易误辨析,:,it/one/that,B,A,C,the house that the Parkers bought,a house,the air,The Parkers bought a new house,9,.,引导词,it,（,Guide word,）,1.It iswas+,被强调部分,+that.,注意：,不管被强调部分是哪种状语，只能用that连接，不得使用where、when等连词.,被强调部分为人时，可用,who(,主格或宾格,),和,whom(,宾格,),代替,that,，用,that,也行。,It was yesterday that I met your father in the street,It was Mike thatwhowhom I saw in the supermarket,.引导词it（Guide word）注意：不管被,10,强调句中 也要注意主谓一致、人称一致和否定转移。,强调句型的特殊疑问句式为：,It is they who are our friends,It was not until ten oclock that we got home last night,How is it that he,_(go),to school every day?,Who was it that,_(give),you an impressive lesson?,特殊疑问词,+iswas+it+that?,goes,gave,强调句中 也要注意主谓一致、人称一致和否定转移。强调句型,11,Eg:,It was we,who/that,called,on Professor Wang at his,office this morning.,It was Professor Wang,whom/that/who,we called,on at his office this morning.,Eg:It was we who/that called,12,It was at his office,that,we,called on Professor Wang,this morning.,When was it,that,we,called on Professor Wang,at his office?,It was at his office that we W,13,注意不要混淆强调句和其他从句。It is wasthat为强调句标志，去掉后仍,可组成一个完整的句子,，只是没被强调,而其他从句一般不具备这一特征。比较：,1),It was ten oclock when we got home last night,2),It was at ten oclock that we got home last night,要点点拔,第一句,不是强调句,，,when,不可改为,that,因为去掉,it was,和,that,后，只能组成“,We got home ten oclock last night,”这样一个不完整的句子；第二句是,强调句,，,that,不可改为,when,我们昨晚到家时已十点了。,我们昨晚是在十点到家的。,注意不要混淆强调句和其他从句。It is wasthat,14,1.(2007,浙江)It _ we had stayed together for a couple of weeks _ I found we had a lot in common.,A.was;when B.was that;that,C.wasnt until;when D.wasnt until;that,2.(2008，重庆)It was at midnight _ they reached the camp site.,A.that B.when C.while D.as,3.(2007,山东),Where did you get to know her?,It was on the farm _we worked.,A.that B.there C.which D.where,正确答案：,D,。易判断这是考查,not until,的强调形式。,正确答案：,D,。答句完整形式应为：,It was on the farm,where we worked that I got to know her.,1.(2007,浙江)It _ we had stay,15,It is important that we(should)learn English well.,It is said that he has come to Beijing.,It is uncertain whether he can come to Jennys birthday party or not.,It is suggested that the meeting(should)be put off.,Its necessary for you to protect yourself from being dangerous.,Its very kind,of,you to help me with the work.,It is important,for,us to learn English well,Its a waste of time talking to her any more.,It is no good learning English without speaking English.,It is no use arguing about the matter with him.,It is important that we(shoul,16,A.It 用作形式主语,当不定式（短语）、动名词（短语）或从句在某个句子中作主语时，为保持句子结构前后平衡，避免头重脚轻，因此常用it作形式主语置于句首，而将真正的主语放在句尾。此时it只起先行引导作用，本身无词义。,It be+,adj,n,p.p,(for/of sb)to do sth,主语从句,doing sth,+,A.It 用作形式主语 It be+adj(for/of,17,B.,It,作形式宾语,.(Formal object),We think it our duty,to clean our classroom,every day.,He felt it important,learning English well,.,They found it difficult,that they would finish their work,in two days.,We consider it important to learn a foreign language.,该句型中的,it,作形式宾语,为了记忆方便我们可称该句型为,“,6123,结构”。,6,指主句中常用的动词,think,believe,make,find,consider,feel,；,1,指的是形式宾语,it,；,2,指的是宾补的两种形式：形容词或名词；,3,指的是真正宾语的三种形式：,不定式短语，动名词短语或,that,引导的宾语从句,B.It 作形式宾语.(Formal object),18,常见用法,特殊用法,6123,结构,三大句型,形式主语,形式宾语,Summary,3,It be+adj,It be+n,It be+p.p,常见用法6123结构三大句型形式主语形式宾语Summary3,19,It,was,5 oclock when he,came,here.,3).It be.before.,“,之后”,1).It be.since.,。,“自从,.,以来已经多久时间,了”,四、特殊句型,It,is(has been),5 years since his father,died,.,2).It be.when.,。,“当的时候，是”,It,was,3,days,before he,went,to Beijing.,It is.since+_,动词，译为：自从,.,以来，已经多久时间,It is.since+_,动词,译为：不在,.,以来，已经多久时间,延续性,非延续性,自从他爸死了已经有,5,年。,他来的时候是,5,点,他,3,天后去北京,It,will be,not long before he,finishes,his job.,不久后他就做成了他的工作,It,is(has been),5 years since he,s