it的用法课件ppt.ppt

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1、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(谚语谚语) with “It”活到老

2、学到老；学无止境。活到老学到老；学无止境。覆水难收。覆水难收。十年树木十年树木, 百年树人。百年树人。 Read the book on P87-88 and answer the question: What functions does “it” have? Self-studyFunctions of “it”:1. 代词代词: 1)_2)_ 3)_2. 引导词引导词: 1)_2)_3)_代上文代上文代代this/that代时间代时间/地点地点/天气天气/温度温度/距离距离/环境环境形式主语形式主语形式宾语形式宾语强调句型强调句型固定句型固定句型1.It gets dark very e

3、arly in the winter.2.What will you call it if its a boy?3.I love spring-Its a wonderful time of the year.4.Its 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 muc

4、h this year. 指时间指时间指婴儿指婴儿指季节指季节指距离指距离指上文提到的事指上文提到的事指指天气天气指上文提到的动物指上文提到的动物一：用作代词What does “it” refer to?特别注意：特别注意：it, one和和that, those作替代词的区别作替代词的区别 (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

5、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.itthe onethatthatonethosethe 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. W

6、e 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：用作形式主语二：用作形式主语用用it改写下列句子：改写下列句子：二：二： 用作形式主语用作形式主语基本结构：基本结构：It

7、 + be/v. + It + be/v. + (for sb/ of sb.) to do (for sb/ of sb.) to do sth sth doing doing sth.sth. that/ that/ whether whether 注意注意 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 _

8、you to go over this lesson.ofofforforIt +be + + doing sthdoing sth翻译：翻译：覆水难收。覆水难收。_和他争论没有用。和他争论没有用。_打电脑游戏是浪费时间。打电脑游戏是浪费时间。1. _注意注意 2:no useno gooda waste of timeIt 何时代替何时代替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。注意注意 3:(1)

9、. 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（后的从句要用虚拟语气（should + 动动词原形），词原形），should 可以省可

10、以省=It is said/reported that 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 re

11、ported to be writing= All the students _ their best. are believed to have done注意注意 4:He is said/ reported to have gone abroad. It + It + vi.(vi.(不及物动词不及物动词) ) + that clause + that clauseIt It happens thathappens that he was out he was outIt seems thatIt seems that he doesnt know the secret. he doesn

12、t know the secret.It appears thatIt appears that he is honest. he is honest.It occurred to me It occurred to me thatthat I lost my purse on the bus. I lost my purse on the bus.It It doesnt matterdoesnt matter whether whether he will come or not. he will come or not. 注意注意 5:Translate：碰巧碰巧好像好像好像好像我突然想

13、到我突然想到没有关系没有关系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.ItItWhatAsWhat注意注意 6:It代替的从句与其他从句的区别代替的从句与其他从句的区

14、别动词动词+ it + 形容词形容词/名词名词 +（ for/of sb +）to do + doing sth. + that 从句从句thinkbelieve find feel consider suppose make keep necessary possiblenatural,no use/no good/a waste of time/三：用作形式宾语三：用作形式宾语1.1.基本结构：基本结构： I found it _to study English. I thinkI think itit importantimportant thatthat you _the you _t

15、he conference. conference. I think I think itit important for you _the important for you _the conference.conference.no use arguingvery interesting三：用作形式宾语三：用作形式宾语(should) attendto attend 我认为和他争吵没有用。我认为和他争吵没有用。 我发现学英语非常有趣。我发现学英语非常有趣。 我认为你去参加这会议很重要。我认为你去参加这会议很重要。I think it _with him.Translate：2. it作形式

16、宾语的特殊句型作形式宾语的特殊句型动词有喜欢类：enjoy, like, appreciate, prefer 讨厌类：hate, dislikeI 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/when1. I hate _ that you can dance so well but I cant.

17、2. I like/ enjoy_ when all the family sit at table.3. I would appreciate _ if I could be accepted.it it it 1.1.基本结构基本结构 It is/wasIt is/was + + 被强调部分被强调部分 + that /who(+ that /who(人人) .) . 四、强调句型四、强调句型注意：在从句中用陈述语序注意：在从句中用陈述语序I asked him _he couldnt help me.why it was thatIt was because he was ill that

18、 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：例如： 他是因为病了才没能帮我他是因为病了才没能帮我2. notuntil句式的强调句型句式的强调句型 He didnt get home until it was dark.比较：比较： Not until _it was darkhe got home It is/was not until + that . “直到直到才才”注意注意:it was dark did he ge

19、t home.It was not until _that _.make itmake itForget it Forget it Dont mention itDont mention itIt (all) depends ! It (all) depends ! Its hard to sayIts hard to sayIts up to you. Its up to you. I cant be helped! I cant be helped! Get itGet it获得成功；准时到达；渡过难关获得成功；准时到达；渡过难关没关系，不必在意，算了吧没关系，不必在意，算了吧视情况而定视

20、情况而定很难说很难说你说了算，由你决定你说了算，由你决定无法避免无法避免,没办法没办法 明白了明白了,懂了懂了五：五：常见的固定用法常见的固定用法(别人道谢时)不客气see to it thatowe it to sb thatrely/ depend on it thattake it for granted thatmake it a rule thatmake it clear that一定注意一定注意,保证，确保保证，确保把把归功于，因为，幸亏归功于，因为，幸亏请放心，相信请放心，相信认为认为.是理所当然是理所当然定为常规，习惯于，总是定为常规，习惯于，总是明确表示，说清楚明确表示，说

21、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 th

22、at, take it for granted that, depend/rely on it that, owe it to sb that, make it a rule that，make it clear thatmade it a ruletake it for grantedowed it tosee to itdepend/rely on it1.It is time (about time /high time ) that sb. _ did /should do2. It is the first ( second . ) time that _was3. It _+时间段

23、时间段.since didis/has been4. It _+时间段时间段. before .was /will be固定句型固定句型It has been 5 years since his father died. It is 10 years since he had breakfast . It was 3 days before he went to Beijing. It will be not long before he finishes his job.have /has done had donePractice makes perfect “it” “it” 的用法的用

24、法-你懂的你懂的? ? 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, its most likely well forget where weve put it. Once I suddenly found my longt

25、ime 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 appreci

26、ate 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 th

27、e test paper.填空填空 _ 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

28、 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.

29、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.tell2.It is strange that she _ marry such an ugly man.A.would B.should C.shall D.must3.Its a pity that he _ such a good chance. A.should mis

30、s B.should have missed C.has missed 4.It is suggested that we _ here at once.A. should leaveB. must leave C. left D. ought to leave5. It is ordered that everyone _ their own work in time. A. must completeB.completed C.completes D.complete Choose the best answer:分析分析itit成分，辨清相似句型。成分，辨清相似句型。1.1._ is k

31、nown to us _ is known to us thatthat the earth is round. the earth is round. _ is known to us _ is known to us is that is that the earth is round.the earth is round. _ is known to us all _ is known to us all, , the earth is round. the earth is round.2. 2. _doesn_doesnt matter much whether het matter

32、 much whether hell come .ll come . I feel _ an honour to be invited to speak here.I feel _ an honour to be invited to speak here.3. 3. _ no wonder that he has passed the exam._ no wonder that he has passed the exam. _ no doubt that he will come. _ no doubt that he will come. _ no need to do / no sen

33、se (point )in doing _ no need to do / no sense (point )in doing sth.sth.4. 4. Was it the house _ Abraham Lincoln was born?Was it the house _ Abraham Lincoln was born? Was it Was it in in the house _ Abraham Lincoln was born?the house _ Abraham Lincoln was born? 5. 5. It Its very kind _ you to help u

34、s.s very kind _ you to help us. It Its very important _ you to keep the balance of s very important _ you to keep the balance of nature.nature.It itIt is whereofWhatAsItThere isThere isthatfor6. 6. It is no good _(do) such a thing. It is no good _(do) such a thing. ItIts of no importance _ such a th

35、ing.s of no importance _ such a thing.7.7.Its time that we _ to school. (go)Its time that we _ to school. (go) It is the second time that we _ to Beijing.It is the second time that we _ to Beijing.8.8.Its tomorrow _ he is going to Beijing.Its tomorrow _ he is going to Beijing. It was 8 oclock _ he w

36、ent to school.It was 8 oclock _ he went to school. A .that B. when C. before D. since A .that B. when C. before D. since9.9.It is 3 years _ he joined the army.It is 3 years _ he joined the army. It will be 3 years _ we meet again.It will be 3 years _ we meet again.doingwentwhensinceto dohave been th

37、atbefore 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.改错改错It

38、 Itthatthatit itwhichwhichAsAs6. 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. WhatWhati

39、t itit itthatthatin 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 app

40、ear 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

41、to New York. After this, I think _ clearly that I love you so much _ I want to marry you.It + be +It + be +adj./nadj./n./V-ed ./V-ed + + (for sb/ of sb.) (for sb/ of sb.) to do sth to do sth doing doing sth.sth. that/ that/ whether whether necessarystrangelikelypossiblecertainkind/nicecruelfoolish.a

42、 pity/a shamean honora surprisea/no wondera factones dutyones turnsaidreportedbelievedknownsuggestedorderedrequired.2.动词动词+ it + 特殊形容词特殊形容词 + that从（从（should） important/unimportant/necessary/unnecessary/natural/essential形式宾语形式宾语 findfind possiblepossibleS+ S+ thinkthink + + itit + + necessarynecessar

43、y +( for sb. ) to +( for sb. ) to do/thatdo/that feelfeel importantimportant a rulea rule2. S+ V + 2. S+ V + itit + + ones dutyones duty + ( for sb. ) + ( for sb. ) to do /thatto do /that an honouran 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,

44、find, consider, feel (should) do1. It + be + 1. It + be + adj./nadj./n./V-ed./V-ed + + (of/ for sb) to do sth (of/ for sb) to do sth / / that that 2. It + be + 2. It + be + V-ed(V-ed(过去分词过去分词) ) +that +that 3. 3. It + It + vi.(vi.(不及物动词不及物动词) ) + that / + that /necessary/strange/likely/possible/certain/kind/crkind/crueluel.It +be +said/reported/believed/known/suggested/orderedsuggested/ordered.adj:n.a pity/a shame/an honor/ a surprise/a wonder/no wonder / a fact/ ones duty/ones turnIt happens/ seems/ appears / occurred to sb. that.It doesnt matter that/ whether/who. 常见谓语形式常见谓语形式