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,*,彭泽一中高中英语高考复习教学课件,彭泽一中 赵万,2018.10.26,it的用法、常用句型及高考改错之十大典型,知识梳理,it,可以作代词（如人称代词、非人称代词）和引导词，也可以用于强调句式中，还可以用于一些固定表达中。,一、,it,作代词,1.,用作人称代词，指代：,上文提到过的人、事、物或情况等；,婴儿、性别不明或没必要区分性别的人或动物。此外，,it,也可指代未知的人。如：,In my opinion,life in the twenty-first century is much easier than,it,was used to.,Someone is ringing the doorbell.Go and see who it is.,It,s John on the phone.,2.,用作非人称代词，指时间、天气、距离或自,然现象等。如：,It,is only half an hours walk to the hospital.,It,s about two kilometers from here to the station.,It,is raining heavily outside.,二、,it,作引导词,1.it,作形式主语的常用句型,“,It+be+,名词,+,主语从句,”中从句谓语常用“（,should+,）动词原形”。常用于本句型的主要有,a,pity,a shame,no wonder,no accident,等。如：,It,is a great pity that he should be so greedy.,It,is a shame that he should attempt to injure the reputation of an honest man.,It,was no accident that such a book should appear in the 18th century.,“,It+be+,形容词,+,主语从句,”中从句谓语常用“（,should+,）动词原形（或完成时）”。常用于本句型的形容词主要有,impossible,strange,surprising,等。如：,It,is impossible that it should be a mere coincidence.,It,s strange that she should have been arrested for stealing.,It,was surprising that he should have finished writing a novel in only twenty days.,“,It+,动词（,+,宾语或状语）,+,主语从句,”。常用于本句型的动词主要有,please,happen,等。如：,It,pleased me very much that he succeeded.,It,pleases me that he should want to talk with me.,It,so happened that he had just left for Tianjin,.,“,It+,动词的被动语态,+,主语从句,”。常用于本句型的动词主要有,accept,admit,allow,announce,等。如：,It,s accepted that the universe is endless.,It,is generally admitted that he is a trustworthy person.,It,was announced that all prisoners would be set free.,2.it,作形式宾语,根据句子结构的需要，人们常用,it,作形式宾语，而将真正的宾语放在宾语补足语后。常用于这种句型的动词有,believe,bring,consider,declare,feel,find,make,prove,think,等。如：,I find,it,amazing that anyone would want to listen to that music.,I dont think,it,possible to master a foreign language within 3 months.,I found,it,worthwhile reading this book.,it,作形式宾语的常用句型：,1,）动词,+it+if/when,从句,当,enjoy,like,dislike,love,hate,prefer,appreciate,等动词后需要接一个,if,或,when,引导的从句时，需要在动词后接,it,作形式宾语。如：,She wont like,it,if you arrive late.,He hates,it,when people use his bike.,Id prefer,it,if I didnt have to do so much work.,I would appreciate,it,very much if you would help me with it.,2,）动词,+,介词,+it+that,从句,能用于此句型的主要有：,depend on,answer for,see to,。如：,You may depend on,it,that he will turn up in time.,I cant answer for,it,that the boy is honest.,Ill see to,it,that all these letters will be sent to the post before twelve.,三、,it,用于强调句型中,强调句型可以对句中除谓语动词以外的成分加以强调。,四、,it,用在一些固定表达中,As someone puts it,.,像某人所说的那样,Please see to it that.,请务必,When it comes to.,当提到,时,It looks/seems as if.,看起来好像,Its time for sth,.,该做某事了,Its time(for sb.)to do sth,.,（某人）该干某事了,It is(high)time that.,（早就）该,Its first/second/third/.time+that.,这是某人第几次干某事（从句谓语用现在完成时）,It is/has been+,一段时间,+since.,自从,已经,；,It wasnt/wont be long before.,没过多久就,/,很快,Its+,时间段,+before.,过,时间才,五、,it,与,one,的区别,两者均可代替前面提到的事物，区别是：,it,指的是与前面已提到的事物为同一物，此时的,it,等于“,the+,名词”；而,one,指的是与前面已提到的事物为同一类物，此时的,one,等于“,a+,名词”。如：,I have a dictionary but Ive lent it to Mary.,I havent a dictionary;can you lend me one?,巩固练习,I.,选用括号内合适的词填空。,1.It was only after she had begun to carry out,the task _(that,when)Mary realized,it was extremely difficult to complete.,2._(It,As)is our belief that we can make a,good life if we work hard.,3._(It,What)is suggested that parents,should pay more attention to their childrens,inner world.,that,It,It,4.As a matter of fact,_(that,it)is not,failure itself,but what we think of failure and,what we do afterwards that counts.,5.Do you still drive your Ford car?,No,I sold _(it,that)two years ago.,6.You must keep _(it,what)in mind,that you can never be too careful when,proofreading the newspaper.,7.Will _(that,it)be convenient for you,to start work tomorrow?,it,it,it,it,8._(There,It)is no doubt that the,visiting team,which has better players,will,win the match.,9.I dont think I can work out the maths,problem.Its too difficult.,Think it over,and perhaps you will make,_(it,that).,There,it,II.,用,there,或,it,的正确形式填空。,1.During my stay there I made _ a rule not,to eat fatty foods.,2.Id appreciate _ if you could help,me find out the reason why the computer,doesnt work.,3.I kept telling Mary not to stay up too late,any more,but _ didnt help.,4._ is an urgent need for qualified,teachers.,5.I like _ when I am with people like,Mr.Ma,who is always willing to help others.,it,it,it,There,it,6.Who is making loud noises outside the,window?,_ is Tom,my neighbours,son.,7._ was no point in staying any longer.,8.Im as good a cook as she is except when,_ comes to making pizza.,9.I have no idea who _ was that taught,me the trick,which helped me to solve the,problem.,10._ is a hard job for such a little boy,to carry the heavy box upstairs.Lets,give him a hand.,It,There,it,it,It,III.,选择正确的词完成下面短文。,it,these,that,what,the,Do you have a drawer or a box of your special stuff?1._ may look like junk to anybody else,but to you 2._ may be very important.Maybe 3._ is your set of last yea