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1、Good morning,everyone!,It is never too old to learn.It is easier to fall than to rise.It is no use crying over spilt(溢出的)milk.It never rains but it pours(泼水).,Proverbs(谚语)with“It”,活到老,学到老。,摔倒容易爬起来难。,覆水难收。,不鸣则已,一鸣惊人。,It is easy to open a shop but hard to keep it always open.It takes three generations
2、(代,辈)to make a gentleman.,创业容易守业难。,十年树木，百年树人。,Grammar:Use of“It”,2023/6/25,课文原句再现,1.Its a beautiful day here and I am sitting under the big tree at the end of the garden.2.Your mother tells me that you started smoking some time ago and now you are finding it difficult to give it up.3.Believe me,I kn
3、ow how easy it is to begin smoking and how tough it is to stop.,The use of“it”,1.用作人称代词，代表前文提到的人或事物。,Whos it?_me.Look at the picture._is a picture of our school.,Its,It,2.用于代替指示代词this 和that。,-Is this jacket yours?-Yes,_is.,it,Read and analyze the following sentences.,It is Friday today.It was very c
4、old last Monday.It is about 8:30 now.It is about 25km from Longxian to Bazi.It lies in the south of Shaoguan city.It is 40C!You got a high fever!Conclusion:it 可以用作非人称代词，表示_,_,_,_,_,_等。,Date,weather,time,distance,place,Temperature,日期,天气,时间,距离,地点,温度,e.g:_ a.Jim is at the door_wants to see you b.Someon
5、e is at the door_must be Jim A.That,It B.It,He C.He,It D.Who,He一般说来，在指代身份或性别明确的人时，通常要根据情况用代词heshe；若是指代身份或性别不明的人，则用代词it,Back,C,1.I cant find my pen.Im going to buy _.2.Life today is better than _ in the old days.3.I cant find my pen.I must have lost _.,_用来代替不可数名词或单数可数名词，特指。表示“同类不同物”，（只在平级结构或比较级结构或表对比
6、结构中指代前文出现的表特指的可数名词单数或不可数名词。（复数名词用those指代),one,that,it,it,one,that,_用来指代前面提到的可数名词，所指的是事物本身；即“同类又同物”;,_则用来替代前面出现过的可数名词，泛指，指一类事物中的一个.即“同类不同物”(复数n用ones指代),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.which2.Weve been looking at houses but haven
7、t found _ we like yet.A.one B.ones C.it D.them3.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,It 作为形式主语 当不定式、动名词、从句等用作句子主语时，为保持句子平衡，通常把真正的主语放在句末，而在句首使用形式主语it.
8、,2023/6/25,eg:It is illegal（for a teenager）to drive a car without a license.It is necessary for you to give him a letter.Conclusion：在句1和句2中 it 的作用是_,真正主语是_。,形式主语,不定式短语,（1）It+be+adj.+（for sb.）to do sth.此处adj.通常为描述事件的形容词：easy，difficult，hard，necessary，impossible，likely，right，wrong，important，obvious，use
9、ful，useless，dangerous,2023/6/25,（2）It+be+adj+of sb.to do sth此处adj.通常为描述人的形容词：kind，unkind，nice，rude，cruel(残忍的)，considerate（体贴的，关心的），careless（粗心的），foolish，stupid，wise，crazy（疯狂的）.eg:1.Its kind of you to help me with the problem.某人做某事某人是.,2 Its foolish of you to quit your job now.,2023/6/25,3.It is no g
10、ood crying over spilt milk.4.It is no use casting pearls before swine.在句3与句4中，it的作用是_,真正主语是_.,形式主语,动名词短语,构成如下结构：It is+no use/no good/not any good/not any use+doing sth.,Read and analyze the following sentences.,It is obvious that the water was to blame.Is it possible that he will become the chairman
11、 of our country?It is amazing that at my age I still look like a student!Analysis：it是_,句子真正的主语是_,形式主语,that引导的主语从句,Conclusion：It is+_+that从句,adj.,跟踪训练1：It is+adj.+that从句,很明显他已经知道了那个坏消息。姚明篮球比易建联打得好是肯定的。,It is obvious that he has known the bad news.,It is certain that Yaoming plays basketball better th
12、an Yijianlian.,It is said that 据说 It is reported that It is supposed that It is hoped that It is well known that,据报导,据推测,希望,众所周知,普遍认为,有人建议,It is said(reported.)that.,It is suggested that,It is generally considered that,该句型中的it 仍是形式主语，真正主语是that引导的主语从句。,1.吸烟危害健康，这是事实。2.碰巧我们在同一间大学。3.据说日本发生了地震。4.有人建议他应该
13、立刻戒烟。,It is a fact that smoking does harm to health.,It happens that we are in the same college.,_ there is an earthquake in Japan.,It is said that,_ he should quit smoking at once.,It is suggested that,it作形式宾语,1.I found it very interesting to study English.我发现学英语非常有趣。2.I think it no use arguing wit
14、h him.我认为和他争吵没有用。3.He made it clear that he was not interested in this subject.他非常清楚地表示他对那门学科不感兴趣。,小结：it在句中充当_，真正宾语可以由_ 以及_短语充当。还可以由_引导的宾语从句充当。,不定式,动名词,that,形式宾语,总结：当复合宾语中的宾语是不定式、动名词宾语从句时,往往把真正的宾语放在它的补足语后面，而用it 作形式宾语,放在宾语补足语之前。该句型中的it 作形式宾语,常用的动词有think,believe,make,find,consider,feel等。,1.S+think+it+
15、necessary+(for sb.)to do sth.,The chairman thought _ necessary to invite Professor Smith to speak at the meeting.A.that B.it C.this D.him,Sentence patterns:,B,find,possible,feel,important,/clause,形式宾语,2.S+V+it+ones duty+(for sb.)to do sth./clause,3.S+V+it+no good+doing sth.no use,形式宾语,I think it his
16、 duty to clean the blackboard.,Sentence patterns:,a rule,an honour,find possibleS+think+it+necessary+(for sb.)to do sth./clause feel important,Sentence patterns:,形式宾语,a rule2.S+V+it+ones duty+(for sb.)to do sth./clause an honour,3.S+V+it+no good+doing sth.no use,I like _ in the autumn when the weath
17、er is clear and bright.A.this B.that C.it D.one,点拨:这是it作形式宾语的一种特殊用法.少数动词(如like,love,enjoy,dislike,hate,appreciate等)或包含介词的动词短语(如see to,depend on等)后接宾语从句,必须先由it担任形式宾语,再接从句.,I like(enjoy,hate)it when.I would appreciate it ifsee to(depend on)it that,Sentence patterns:,C,形式宾语,It 用于强调句型,I met Tom in the p
18、ark yesterday.,1)It was I who met Tom in the park yesterday.,2)It was Tom who I met in the park yesterday.,3)It was in the park that I met Tom yesterday.,4)It was yesterday that I met Tom in the park.,It is/was+被强调部分+that/who+句子的其他部分 Mr.Zhu teaches us math.It is Mr.Zhu that/who teaches us math.We be
19、gin our class at 7:35 in the morning.It is at 7:35 that we begin our class.,It was five oclock _ I got home.It was at five oclock _ I got home.,when,that,It is not until+被强调部分+that.该句型也是强调句型。主要用于强凋时间状语,It was not until she took off her dark glasses that I realized she was a famous film star.=Not unt
20、il she took off her dark glasses did I realize she was a famous film star.=I didnt realize she was a famous film star until she took off her dark glasses.,译为“直到才”,可以说是not.until.的强调形式。如:,在一些固定用法中考查,常见的固定用法有:make itforget itbelieve it or not Dont mention it It doesnt matter It(That)depends Got itIts h
21、ard to sayIts up to you to do sth.take it/things easy,成功，做到，赶上等别提了，忘了它吧信不信由你别提了，表示不用谢没关系视情况而定明白了，懂了很难说 由你来决定做某事不要慌，别担心，沉住气,Rewrite the sentences using an“it”structure.,1 Giving up smoking is difficult.(It is)2 Most people believe smoking causes cancer.(It is believe that)3 Dont try to quit on a stre
22、ssful day.(Its no use)4 you could suffer from bad health if you keep smoking.(It is likely that),It is difficult to give up smoking.,It is believed that smoking causes cancer.,It is no use trying to quit on s a stressful day.,It is likely that you could suffer from bad health if you keep smoking.,On
23、e midnight,was raining heavily.Mary was lying in bed.She couldnt fall sleep.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!i
24、s me”the man answered.She rushed to open the door.John was just 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 m
25、uch I want to be marry you.”,it,it,It,It,It,It,It,it,that,that/which,that,that,Fill in the blanks,1.It is you asked me to help you.2.There were some children crying in the house.It was terrible.3.It is quite a long way from here to Beijing.4.It was about nine oclock.5.He found it very interesting to
26、 know about the history of China.6.I was told that it was dangerous to walk alone in the street.7.We couldnt get out of the building until it stopped raining.,Exercises,表示强调,人称代词,距离,时间,形式宾语,形式主语,天气,Translation,1.是到戒烟的时候了。(quit)It is time to quit smoking.,2.让人惊讶的是在我这个年纪我依然 这么健康。(It is amazing that.)I
27、t is amazing that at my age I am still so fit.,It seems strange that the man who had delevoped communism should have lived and died in London.,3.一旦你吸烟上了瘾,你会发现要把它戒掉 很难。(addict.to;tough)Once you are addicted to smoking,you will find it tough to give it up.,4.这似乎是一件怪事：这位发展了共产主义的人竟然在伦敦生活过，并且在伦敦去世。,5.I(认
28、为有必要)to take plenty of hot water every day.(think)6._(据说)the professor has already succeeded in carrying out this expriment.(say)7._to have succeeded(已成功)in carrying out this expriment.(succeed)8._It is likely for me_(我也许可以)to leave a message for her.(possible)9._It is likely that_(很可能)the thieves dont know how much it is worth.(likely)10._It is no use comlaining_(抱怨是毫无用处的)，and they never listen.(use),think it necessary,It is said that,The professor is said,it,代词,人称代词,指示代词,非人称代词,引导词,it 用在强调句中,it 用作形式主语it 用作形式宾语,小结：,
