高中英語(yǔ)課件-it的用法.ppt
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(潑水).,Proverbs(諺語(yǔ)) with “It”,活到老, 學(xué)到老。,摔倒容易爬起來(lái)難。,覆水難收。,不鳴則已, 一鳴驚人。, It is easy to open a shop but hard to keep it always open. It takes three generations (代,輩) to make a gentleman.,創(chuàng)業(yè)容易守業(yè)難。,十年樹(shù)木，百年樹(shù)人。,Grammar: Use of “It”,2019/5/6,課文原句再現(xiàn),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 know how easy it is to begin smoking and how tough it is to stop.,The use of “it”,1.用作人稱(chēng)代詞，代表前面提到的人或事物。,Whos it? _me. Look at the picture. _is a picture of our school.,Its,It,2.用于代替指示代詞this 和that。,-Is this jacket yours? -Yes, _is.,it,Read and analyze the following sentences.,It is Friday today. It was very cold 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 可以用作非人稱(chēng)代詞，表示_,_,_,_,_,_等。,Date,weather,time,distance,place,Temperature,日期,天氣,時(shí)間,距離,地點(diǎn),溫度,e.g: _ a. Jim is at the door_wants to see you b. Someone is at the door_must be Jim A. That, It B. It, He C. He, It D. Who, He 一般說(shuō)來(lái)，在指代身份或性別明確的人時(shí)，通常要根據(jù)情況用代詞heshe；若是指代身份或性別不明的人，則用代詞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 _.,_用來(lái)指代前面提到的可數(shù)名詞，所指的是事物本身； _則用來(lái)替代前面出現(xiàn)過(guò)的可數(shù)名詞，泛指，指一類(lèi)事物中的一個(gè) . _用來(lái)代替不可數(shù)名詞或單數(shù)可數(shù)名詞，特指。,one,that,it,it,one,that,It 作為形式主語(yǔ) 當(dāng)不定式、動(dòng)名詞、從句等用作句子主語(yǔ)時(shí)，為保持句子平衡，通常把真正的主語(yǔ)放在句末，而在句首使用形式主語(yǔ)it.,2019/5/6,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_ ,真正主語(yǔ)是_。,形式主語(yǔ),不定式短語(yǔ),（1）It +be +adj.+（for sb.）to do sth. 此處adj. 通常為描述事件的形容詞：easy，difficult，hard，necessary，impossible，likely，right，wrong，important，obvious，useful，useless，dangerous,2019/5/6,（2）It +be+ adj+ of sb. to do sth 此處adj. 通常為描述人的形容詞：kind，unkind，nice，rude，cruel，considerate，careless，foolish，stupid，wise，crazy. 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.,2019/5/6,3.It is no good crying over spilt milk. 4.It is no use casting pearls before swine . 在句3與句4中，it的作用是_, 真正主語(yǔ)是_.,形式主語(yǔ),動(dòng)名詞短語(yǔ),構(gòu)成如下結(jié)構(gòu)： 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 of our country? It is amazing that at my age I still look like a student! Analysis：it是_ ,句子真正的主語(yǔ)是_,形式主語(yǔ),that引導(dǎo)的主語(yǔ)從句,Conclusion：It is+ _+ that從句,adj.,跟蹤訓(xùn)練1：It is+ adj. + that從句,很明顯他已經(jīng)知道了那個(gè)壞消息。 姚明籃球比易建聯(lián)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 than Yijianlian.,It is said that 據(jù)說(shuō) It is reported that It is supposed that It is hoped that It is well known that,據(jù)報(bào)導(dǎo),據(jù)推測(cè),希望,眾所周知,普遍認(rèn)為,有人建議,It is said (reported) that .,It is suggested that,It is generally considered that,該句型中的it 仍是形式主語(yǔ)，真正主語(yǔ)是 that引導(dǎo)的主語(yǔ)從句。,1.吸煙危害健康，這是事實(shí)。 2.碰巧我們?cè)谕婚g大學(xué) 。 3.據(jù)說(shuō)日本發(fā)生了地震。 4.有人建議他應(yīng)該立刻戒煙。,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,二、it作形式賓語(yǔ),1. I found it very interesting to study English. 我發(fā)現(xiàn)學(xué)英語(yǔ)非常有趣。 2. I think it no use arguing with him. 我認(rèn)為和他爭(zhēng)吵沒(méi)有用。 3. He made it clear that he was not interested in this subject. 他非常清楚地表示他對(duì)那門(mén)學(xué)科不感興趣。,小結(jié)： it在句中充當(dāng)_，真正賓語(yǔ)可以由_ 以及_短語(yǔ)充當(dāng)。 還可以由_引導(dǎo)的賓語(yǔ)從句充當(dāng)。,不定式,動(dòng)名詞,that,形式賓語(yǔ),總結(jié)：當(dāng)復(fù)合賓語(yǔ)中的賓語(yǔ)是不定式、動(dòng)名詞賓語(yǔ)從句時(shí), 往往把真正的賓語(yǔ)放在它的補(bǔ)足語(yǔ)后面，而用it 作形式賓語(yǔ), 放在賓語(yǔ)補(bǔ)足語(yǔ)之前。 該句型中的it 作形式賓語(yǔ), 常用的動(dòng)詞有think, believe, make, find, consider, feel等。,在一些固定用法中考查,常見(jiàn)的固定用法有: make it forget it believe it or not Dont mention it It doesnt matter It(That) depends Got it Its hard to say Its up to you to do sth. take it/things easy,成功，做到，趕上等 別提了，忘了它吧 信不信由你 別提了，表示不用謝 沒(méi)關(guān)系 視情況而定 明白了，懂了 很難說(shuō) 由你來(lái)決定做某事 不要慌，別擔(dān)心，沉住氣,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 stressful 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.,One 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.”O(jiān)ne 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 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 much I want to be marry you.”,it,it,It,It,It,It,It,it,that,that/which,that,that,Fill in the blanks,Translation,1. 是到戒煙的時(shí)候了。(quit) It is time to quit smoking.,2. 讓人驚訝的是在我這個(gè)年紀(jì)我依然 這么健康。(It is amazing that.) It 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. 一旦你吸煙上了癮, 你會(huì)發(fā)現(xiàn)要把它戒掉 很難。(addict. to; tough) Once you are addicted to smoking, you will find it tough to give it up.,4. 這似乎是一件怪事：這位發(fā)展了共產(chǎn)主義 的人竟然在倫敦生活過(guò)，并且在倫敦去世。,5.I (認(rèn)為有必要) to take plenty of hot water every day.(think) 6. _(據(jù)說(shuō))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_(我也許可以) 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_(抱怨是毫無(wú)用處的)，and they never listen.(use),think it necessary,It is said that,The professor is said,it,代詞,人稱(chēng)代詞,指示代詞,非人稱(chēng)代詞,引導(dǎo)詞,it 用在強(qiáng)調(diào)句中,it 用作形式主語(yǔ) it 用作形式賓語(yǔ),小結(jié)：,
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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(潑水).,Proverbs(諺語(yǔ)) with “It”,活到老, 學(xué)到老。,摔倒容易爬起來(lái)難。,覆水難收。,不鳴則已, 一鳴驚人。, It is easy to open a shop but hard to keep it always open. It takes three generations (代,輩) to make a gentleman.,創(chuàng)業(yè)容易守業(yè)難。,十年樹(shù)木，百年樹(shù)人。,Grammar: Use of “It”,2019/5/6,課文原句再現(xiàn),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 know how easy it is to begin smoking and how tough it is to stop.,The use of “it”,1.用作人稱(chēng)代詞，代表前面提到的人或事物。,Whos it? _me. Look at the picture. _is a picture of our school.,Its,It,2.用于代替指示代詞this 和that。,-Is this jacket yours? -Yes, _is.,it,Read and analyze the following sentences.,It is Friday today. It was very cold 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 可以用作非人稱(chēng)代詞，表示_,_,_,_,_,_等。,Date,weather,time,distance,place,Temperature,日期,天氣,時(shí)間,距離,地點(diǎn),溫度,e.g: _ a. Jim is at the door_wants to see you b. Someone is at the door_must be Jim A. That, It B. It, He C. He, It D. Who, He 一般說(shuō)來(lái)，在指代身份或性別明確的人時(shí)，通常要根據(jù)情況用代詞heshe；若是指代身份或性別不明的人，則用代詞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 _.,_用來(lái)指代前面提到的可數(shù)名詞，所指的是事物本身； _則用來(lái)替代前面出現(xiàn)過(guò)的可數(shù)名詞，泛指，指一類(lèi)事物中的一個(gè) . _用來(lái)代替不可數(shù)名詞或單數(shù)可數(shù)名詞，特指。,one,that,it,it,one,that,It 作為形式主語(yǔ) 當(dāng)不定式、動(dòng)名詞、從句等用作句子主語(yǔ)時(shí)，為保持句子平衡，通常把真正的主語(yǔ)放在句末，而在句首使用形式主語(yǔ)it.,2019/5/6,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_ ,真正主語(yǔ)是_。,形式主語(yǔ),不定式短語(yǔ),（1）It +be +adj.+（for sb.）to do sth. 此處adj. 通常為描述事件的形容詞：easy，difficult，hard，necessary，impossible，likely，right，wrong，important，obvious，useful，useless，dangerous,2019/5/6,（2）It +be+ adj+ of sb. to do sth 此處adj. 通常為描述人的形容詞：kind，unkind，nice，rude，cruel，considerate，careless，foolish，stupid，wise，crazy. 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.,2019/5/6,3.It is no good crying over spilt milk. 4.It is no use casting pearls before swine . 在句3與句4中，it的作用是_, 真正主語(yǔ)是_.,形式主語(yǔ),動(dòng)名詞短語(yǔ),構(gòu)成如下結(jié)構(gòu)： 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 of our country? It is amazing that at my age I still look like a student! Analysis：it是_ ,句子真正的主語(yǔ)是_,形式主語(yǔ),that引導(dǎo)的主語(yǔ)從句,Conclusion：It is+ _+ that從句,adj.,跟蹤訓(xùn)練1：It is+ adj. + that從句,很明顯他已經(jīng)知道了那個(gè)壞消息。 姚明籃球比易建聯(lián)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 than Yijianlian.,It is said that 據(jù)說(shuō) It is reported that It is supposed that It is hoped that It is well known that,據(jù)報(bào)導(dǎo),據(jù)推測(cè),希望,眾所周知,普遍認(rèn)為,有人建議,It is said (reported) that .,It is suggested that,It is generally considered that,該句型中的it 仍是形式主語(yǔ)，真正主語(yǔ)是 that引導(dǎo)的主語(yǔ)從句。,1.吸煙危害健康，這是事實(shí)。 2.碰巧我們?cè)谕婚g大學(xué) 。 3.據(jù)說(shuō)日本發(fā)生了地震。 4.有人建議他應(yīng)該立刻戒煙。,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,二、it作形式賓語(yǔ),1. I found it very interesting to study English. 我發(fā)現(xiàn)學(xué)英語(yǔ)非常有趣。 2. I think it no use arguing with him. 我認(rèn)為和他爭(zhēng)吵沒(méi)有用。 3. He made it clear that he was not interested in this subject. 他非常清楚地表示他對(duì)那門(mén)學(xué)科不感興趣。,小結(jié)： it在句中充當(dāng)_，真正賓語(yǔ)可以由_ 以及_短語(yǔ)充當(dāng)。 還可以由_引導(dǎo)的賓語(yǔ)從句充當(dāng)。,不定式,動(dòng)名詞,that,形式賓語(yǔ),總結(jié)：當(dāng)復(fù)合賓語(yǔ)中的賓語(yǔ)是不定式、動(dòng)名詞賓語(yǔ)從句時(shí), 往往把真正的賓語(yǔ)放在它的補(bǔ)足語(yǔ)后面，而用it 作形式賓語(yǔ), 放在賓語(yǔ)補(bǔ)足語(yǔ)之前。 該句型中的it 作形式賓語(yǔ), 常用的動(dòng)詞有think, believe, make, find, consider, feel等。,在一些固定用法中考查,常見(jiàn)的固定用法有: make it forget it believe it or not Dont mention it It doesnt matter It(That) depends Got it Its hard to say Its up to you to do sth. take it/things easy,成功，做到，趕上等 別提了，忘了它吧 信不信由你 別提了，表示不用謝 沒(méi)關(guān)系 視情況而定 明白了，懂了 很難說(shuō) 由你來(lái)決定做某事 不要慌，別擔(dān)心，沉住氣,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 stressful 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.,One 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.”O(jiān)ne 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 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 much I want to be marry you.”,it,it,It,It,It,It,It,it,that,that/which,that,that,Fill in the blanks,Translation,1. 是到戒煙的時(shí)候了。(quit) It is time to quit smoking.,2. 讓人驚訝的是在我這個(gè)年紀(jì)我依然 這么健康。(It is amazing that.) It 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. 一旦你吸煙上了癮, 你會(huì)發(fā)現(xiàn)要把它戒掉 很難。(addict. to; tough) Once you are addicted to smoking, you will find it tough to give it up.,4. 這似乎是一件怪事：這位發(fā)展了共產(chǎn)主義 的人竟然在倫敦生活過(guò)，并且在倫敦去世。,5.I (認(rèn)為有必要) to take plenty of hot water every day.(think) 6. _(據(jù)說(shuō))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_(我也許可以) 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_(抱怨是毫無(wú)用處的)，and they never listen.(use),think it necessary,It is said that,The professor is said,it,代詞,人稱(chēng)代詞,指示代詞,非人稱(chēng)代詞,引導(dǎo)詞,it 用在強(qiáng)調(diào)句中,it 用作形式主語(yǔ) it 用作形式賓語(yǔ),小結(jié)：,
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