it用法课件.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,*,*,平阴县第一中学 高二英语,1.Revise the basic usages of“it”.,2.Conclude the rules of“it”.,3.Improve the abilities of,cooperation and expression.,The use of“it”,Learning aims:,It,is never too old,to learn,.,It,is no use,crying over spilt,(,溢出的,),milk,.,It,takes three generations(,辈,代,),to make a gentleman.,Proverbs(,谚语,)with“It”,活到老学到老；学无止境。,覆水难收。,十年树木,百年树人。,Read the book on P87-88 and answer the question:,What functions does“it”have?,Self-study,Functions of“it”:,1.,代词,:,1)_2)_ 3)_,2.,引导词,:,1)_2)_3)_,代上文,代,this/that,代时间,/,地点,/,天气,/,温度,/,距离,/,环境,形式主语,形式宾语,强调句型,固定句型,1.,It,gets dark very early in the winter.,2.What will you call,it,if its a boy?,3.I love spring-,It,s a wonderful time of the year.,4.,It,s less than 100,kilometres,from here to Jinan.,5.When the factory closes,it,will mean 500 people losing their jobs.,6.The little animal is a monkey and,it,lives in Sichuan.,7.,It,has snowed much this year.,指时间,指婴儿,指季节,指距离,指上文提到的事,指,天气,指上文提到的动物,一：用作代词,What does“it”refer to?,特别注意：,it,one,和,that,those,作替代词的区别,(1),The book in your bag,is very interesting.Can I borrow,?,(2),The book,in your bag is more interesting than _ on the desk.,(3)The weather here is much colder than_ in Nanjing.,(4)The books are free.You can take_ free of charge.,(5)The books in the bag are better than _ on the,destk,.,it,the one,that,that,one,those,the ones,To remember this rule,is important.,2.,Chatting on the internet,is a waste of time.,3.,Whether you come or not,doesnt interest me.,4.,We should make our country much stronger,which is our duty.,It is important to remember this rule.,Its our duty to make our country much stronger.,It is a waste of time chatting on the internet.,It doesnt interest me whether you come or not.,二：用作形式主语,用,it,改写下列句子：,二：用作形式主语,基本结构：,It+be/v.+,(for,sb,/of sb.)to do,sth,doing,sth,.,that/whether,注意,1:,For,or,Of,?,1.It is important,_,us,to learn English well.,2.It is very kind _ you to help,me learn English.,3.It is foolish _ you to believe him,.,4.It is necessary _ you to go over this lesson,.,of,of,for,for,It+be+,doing,sth,翻译：,覆水难收。,_,和他争论没有用。,_,打电脑游戏是浪费时间。,_,注意,2:,no use,no good,a waste of time,It,何时代替,doing?,It is no good arguing with him,。,It is no use crying over spilt milk,。,It is a waste of time playing computer games,。,注意,3:,(1).,It is a pity(,a shame/an honor/a good thing/a fact/a surprise/.,)that.,(2).It is important,(necessary,，,strange,，,natural.),that.,(3).It is insisted,(ordered/,commanded,suggested,/advised/proposed,demanded/requested/required.),that.,that,后的从句要用虚拟语气（,should+,动词原形），,should,可以省,=,It,is said/reported,tha,t,he has gone abroad.,It is said that he,is,the richest man in the world.,2.It is reported that he,is writing,an interesting novel.,3.It is believed that all the students,have done,their best.,=He _ the richest man in the world.,is said to be,=He _,an interesting novel.,is reported to be writing,=All the students _ their best.,are believed to have done,注意,4:,He is said/reported,to have gone abroad.,It+,vi.(,不及物动词,),+that clause,It,happens that,he was out,It seems that,he doesnt know the secret.,It appears that,he is honest.,It occurred to me,that,I lost my purse on the bus.,It,doesnt matter,whether,he will come or not.,注意,5:,Translate,：,碰巧,好像,好像,我突然想到,没有关系,1)_ is known to all,that,he is diligent.,2)_is known to us all,he is diligent.,3)_ is known to us all is that he is diligent.,4),_is important,that,we,should,learn every subject well.,5,）,_ is important is that we should learn English well.,It,It,What,As,What,注意,6:,It,代替的从句与其他从句的区别,动词,+it+,形容词,/,名词,+,（,for/of,sb,+,）,to do,+doing,sth,.,+that,从句,think,believe,find,feel,consider suppose make,keep,necessary,possible,natural,nouse/nogood/,awasteoftime/,三：用作形式宾语,1.,基本结构：,I,found,it,_,to study,English.,Ithink,it,important,that,you_the,conference.,I think,it,important for you _the conference.,no use arguing,very interesting,三：用作形式宾语,(should)attend,to attend,我认为和他争吵没有用。,我发现学英语非常有趣。,我认为你去参加这会议很重要。,I,think,it,_,with him.,Translate,：,2.it,作形式宾语的特殊句型,动词有喜欢类：,enjoy,like,appreciate,prefer,讨厌类：,hate,dislike,I would,appreciate,it if,you paid in cash.,I,like,it,in the autumn,when,the weather is clear and bright.,I,hate,it when,people talk with their mouths full.,V.+it+if/that/when,1.Ihate_ that youcandancesowell,butIcant.,2.I like/,enjoy_,when,all the family sit at table.,3.I would appreciate _,if,I could be accepted.,it,it,it,1.,基本结构,It is/was,+,被强调部分,+that/who(,人,).,四、强调句型,注意：在从句中用陈述语序,I,asked,him,_,he couldnt help me.,why it was that,It was,because he was ill,that,he couldnt help me.,Was it,because he was ill,that,he couldnt help me?,Why was it that,he couldnt help me?,例如：,他是因为病了才没能帮我,2.notuntil,句式的强调句型,He didnt get home until it was dark.,比较：,Not until _,it was dark,he got home,It is/was not until+that.,“,直到,才,”,注意,:,it was dark,did,he get home,.,It was not until,_,that,_.,make it,Forget it,Dont mention it,It(all)depends!,Its hard to say,Its up to you.,I cant be helped!,Get it,获得成功；准时到达；渡过难关,没关系，不必在意，算了吧,视情况而定,很难说,你说了算，由你决定,无法避免,没办法,明白了,懂了,五：,常见的固定用法,(,别人道谢时,),不客气,see to it that,owe it to,sb,that,rely/depend on it that,take it for granted that,make it a rule that,make it clear that,一定注意,保证，确保,把,归功于，因为，幸亏,请放心，相信,认为,.,是理所当然,定为常规，习惯于，总是,明确表示，说清楚,1.I have _that I will do some English reading every day.,2.Dont _that everyone should help you.,3.I _Tom that I found the job I wanted.,4 I will _ that everything is ready in time.,5.You may _that the work will be finished ahead of time.I promise.,Fill in the blanks with the following:,see to it that,take it for granted that,depend/rely on it that,owe it to,sb,that,make it a rule that,，,make it clear that,made it a rule,take it for granted,owed it to,see to it,depend/rely on it,1.It is time,(about time/high time),that sb._,did/should do,2,.,It,is,the first,(second.),time that _,was,3.It _+,时间段,.since did,is/has,been,4.It _+,时间段,.before.,was/will be,固定句型,It has been 5 years,since,his father died.,It is10years,since,hehad breakfast.,It was 3 days,before,he went to Beijing.It will be not long,before,he finishes his job.,have/has done,had done,Practice makes perfect,Practice time,“it”,的用法,-,你懂的,?,Umbrella is what we easily forget and leave behind in our daily life.When the weather is fine,we certainly dont think of,it,;only when,it,is raining,well carry,it,purposefully.but as soon as the rain stops,it,s most likely well forget where weve put,it,.,Once I suddenly found my longtime used umbrella“disappeared”.I really regretted losing,it,for my carelessness.Days later,out of my expectation,I saw,it,quietly stand in a corner of my office.I was extremely glad to regain it,.,It,occurred to me that I just sought for,it,only when I needed,it,.,It,sets me thinking.Id appreciate,it,that around us there is a person giving us support in silence just like an old umbrella.,Who is,it,that protects you from the rain or any wretched weather?Please say thanks to him or her.,Make detailed notes by themselves.Refer to your grammar books when necessary.,Finish the exercises on the test paper.,Homework,填空,_ is a wonder _ he refused such a good offer.,_ is no good _(talk)without doing anything.,_ is a waste of time talking to him.,_ is no need for us to discuss the problem again,_ is no difference between them.,It is for this reason _her uncle moved out of New York.,Toms mother kept telling him that he should work harder,but _didnt help.,He felt _his duty to work for human rights and progress.,9.Its foolish _ you to refuse the chance.,10.What a pity my new computer doesnt work!_ must be something wrong with it.,11._is not how much you read but what you read that counts.,12.It is not clear _ he didnt report the accident earlier.,1.It was necessary that he _ about what had happened.,A.should be told B.was told,C.should tell,D.tell,2.It is strange that she _ marry such an ugly man.,A.would,B.should,C.shall,D.must,3.Its a pity that he _ such a good chance.,A.should,miss,B.should,have missed,C.has,missed,4.It is suggested that we _ here at once.,A.should leave,B.must leave,C.left,D.ought to leave,5.It is ordered that everyone _ their own work in time.,A.must complete,B.completed,C.completes,D.complete,Choose the best answer:,分析,it,成分，辨清相似句型。,1.,_ is known to us,that,the earth is round.,_ is known to us,is that,the earth is round.,_ is known to us all,the earth is round.,2.,_,doesn,t matter much whether he,ll,come.,I feel _ an,honour,to be invited to speak here.,3.,_ no wonder that he has passed the exam.,_ no doubt that he will come.,_ no need to do/no sense(point)in doing,sth,.,4.,Was it the house _ Abraham Lincoln was born?,Was it,in,the house _ Abraham Lincoln was born?,5.,It,s very kind _ you to help us.,It,s very important _ you to keep the balance of nature.,It,it,It is,where,of,What,As,It,There is,There is,that,for,6.,It is no good _(do)such a thing.,It,s of no importance _ such a thing.,7.,Its time that we _ to school.(go),It is the second time that we _ to Beijing.,8.,Its tomorrow _ he is going to Beijing.,It was 8 oclock _ he went to school.,A.that B.when C.before D.since,9.,It is 3 years _ he joined the army.,It will be 3 years _ we meet again.,doing,went,when,since,to do,have been,that,before,He seems that he knows nothing about it.,2.The color of my coat is different from it of yours.,3.How long will you take to finish the work?,4.He wrote a poem,it is difficult for me to understand.,5.It is reported in the newspapers,talks between the two countries are making progress.,改错,It,that,it,which,As,6.It is well known is that the earth is round.,7.It is the first time that he has been to Australia,isnt he?,8.I hate when people talk with their mouths full.,9.Was it during the Second World War when he died?,10.,It was this village that I was brought up.,What,it,it,that,in,One midnight,_ was raining heavily.Mary was lying in bed.She couldnt fall asleep.Suddenly she heard someone knocking at the door.”Who is _”She asked.She looked at the clock hung on the wall._ was striking two._ is me,one man answered.“_ was impossible for him,to appear here.”She thought.“John,Is _ you?”“Yeah,_ is me”the man answered.She rushed to open the door.John was standing in front of her.He said to Mary excitedly,I missed the plane._ was said that the plane _ I would take crashed down three hours ago.It was in that plane _ I should have gone to New York.After this,I think _ clearly that I love you so much _ I want to marry you.,It+be+,adj./n,./V-ed,+,(for,sb,/of sb.)to do,sth,doing,sth,.,that/whether,necessary,strange,likely,possible,certain,kind/nice,cruel,foolish.,a pity/a shame,an honor,a surprise,a/no wonder,a fact,ones duty,ones turn,said,reported,believed,known,suggested,ordered,required,.,2.,动词,+it+,特殊形容词,+that,从（,should,）,important/,unimportant/,necessary/,unnecessary,/natural/,essential,形式宾语,find,possible,S+,think,+,it,+,necessary,+(for sb.)to do/that,feel,important,a rule,2.S+V +,it,+,ones duty,+(for sb.)to do/that,an,honour,no good,3.S +V+,it,+,no use,+doing,sth,a waste of time,常跟,it,作形式宾语的动词有,think,believe,make,find,consider,feel,(should)do,1.It+be+,adj./n,./V-ed,+,(of/for,sb,)to do,sth,/,that,2.It+be+,V-,ed,(,过去分词,),+that,3.,It+,vi.(,不及物动词,),+that/,necessary/strange/,likely/possible/certain,/,kind/cruel,.,It+be+said/reported/believed/known/,suggested/ordered,.,adj,:,n.,a pity/a shame/an honor/a surprise/a wonder/no wonder,/a fact/ones duty/ones turn,It happens/seems/appears/occurred to sb.that.,It doesnt matter that/whether/who.,常见谓语形式,