知識(shí)點(diǎn)-it作形式賓語的結(jié)構(gòu)課件

1、知識(shí)點(diǎn)it作形式賓語的結(jié)構(gòu)課件知識(shí)點(diǎn)it作形式賓語的結(jié)構(gòu)課件it作形式賓語的結(jié)構(gòu)【知識(shí)點(diǎn)解析】一、基本用法1. it作形式賓語時(shí)，可以代替三種形式：不定式、動(dòng)名詞和賓語從句。2. it作形式賓語時(shí)，需具備兩個(gè)條件：真正的賓語是不定式、動(dòng)名詞或從句有賓語補(bǔ)足語具備了這兩個(gè)條件，形式賓語it一定要用。 it作形式賓語的結(jié)構(gòu)【知識(shí)點(diǎn)解析】一、基本用法it作形式賓語的結(jié)構(gòu)【知識(shí)點(diǎn)解析】二、it 作形式賓語的三種形式1. it代替不定式短語think/ find/ feel/ consider/ make/ regard+ it +形容詞/名詞 + 不定式短語，如：I find it pleasant

2、to work with him.(it 作形式賓語，代替不定式短語to work with him)我覺得和他一起工作很愉快。They felt it difficult to finish the work in such a short time.（it 作形式賓語，代替不定式短語to finish the work in such a short time）他們認(rèn)為在這么短的時(shí)間內(nèi)完成這項(xiàng)工作是困難的。it作形式賓語的結(jié)構(gòu)【知識(shí)點(diǎn)解析】二、it 作形式賓語的三種it作形式賓語的結(jié)構(gòu)【知識(shí)點(diǎn)解析】She thinks it her duty to help us.（it 作形式賓語，代替

3、不定式短語to help us）她覺得幫助我們是她的責(zé)任。I think it my honor to be invited to speak here.（it 作形式賓語，代替不定式短語to be invited to speak here）我覺得應(yīng)邀在這兒演講是我的榮耀。Tom didnt find it difficult to write letters in Chinese.（it 作形式賓語，代替不定式短語to write letters in Chinese）湯姆發(fā)現(xiàn)用漢語寫信不難。it作形式賓語的結(jié)構(gòu)【知識(shí)點(diǎn)解析】She thinks iit作形式賓語的結(jié)構(gòu)【知識(shí)點(diǎn)解析】All

4、 these noises made it impossible for me to go on with the work.（it 作形式賓語，代替不定式短語to go on with the work）這些噪音使我無法繼續(xù)工作。2. it代替動(dòng)名詞短語( 這只限于少數(shù)句型，在多數(shù)情況下用不定式時(shí)更多一些)。如：The professor considers it no good reading without understanding.這位教授認(rèn)為閱讀而不理解沒有益處。Do you consider it any good trying again?你覺得再試會(huì)有好處嗎？ it作形式賓語

5、的結(jié)構(gòu)【知識(shí)點(diǎn)解析】All these noit作形式賓語的結(jié)構(gòu)【知識(shí)點(diǎn)解析】He found it useless( no use) arguing with him.他發(fā)現(xiàn)和他辯論沒有用。He thought it absolutely senseless attempting the impossible.想做不可能的事情，他認(rèn)為是完全沒道理的。I dont think it worthwhile going to such a place.到這樣一個(gè)地方去我看是不值得的。 it作形式賓語的結(jié)構(gòu)【知識(shí)點(diǎn)解析】He found it it作形式賓語的結(jié)構(gòu)【知識(shí)點(diǎn)解析】3. it代替賓語從句

6、：如：We all thought it a pity that the conference should have been cancelled.會(huì)議取消了我們都感到很遺憾。I took it for granted that they were not coming.我想他們準(zhǔn)是不會(huì)來的了。Ill see to it that everything is ready in time.我負(fù)責(zé)使一切都按時(shí)準(zhǔn)備好。 it作形式賓語的結(jié)構(gòu)【知識(shí)點(diǎn)解析】3. it代替賓語從句：如it作形式賓語的結(jié)構(gòu)【知識(shí)點(diǎn)解析】三、含it 的常用句型英語中有一些固定句型中含有it,應(yīng)注意這些句型的使用。1. It

7、 be + 被強(qiáng)調(diào)部分 + that/ who + 其他成分強(qiáng)調(diào)句型可以強(qiáng)調(diào)一個(gè)句子的主語、賓語、表語及狀語等成分。如果被強(qiáng)調(diào)的成分是表示人的詞，可以用that或who(whom)連接其他成分；被強(qiáng)調(diào)的成分是表示人以外的詞，例如表示事物、時(shí)間或地點(diǎn)的詞，用that連接其他成分。例如我們可以用強(qiáng)調(diào)句型強(qiáng)調(diào)下列句子的主語（如）、賓語（如）、地點(diǎn)狀語（如）及時(shí)間狀語（如）原句：I met Peter in Japan last year. It was I who/that met Peter in Japan last year.（強(qiáng)調(diào)主語I） it作形式賓語的結(jié)構(gòu)【知識(shí)點(diǎn)解析】三、含it 的常用

8、句型it作形式賓語的結(jié)構(gòu)【知識(shí)點(diǎn)解析】 It was Peter whom/that I met in Japan last year.（強(qiáng)調(diào)賓語Peter） It was in Japan that I met Peter last year.（強(qiáng)調(diào)地點(diǎn)狀語in Japan） It was last year that I met Peter in Japan.（強(qiáng)調(diào)時(shí)間狀語last year）注意：not until 也可用于強(qiáng)調(diào)句型，此句型也可以變?yōu)楹琲t的強(qiáng)調(diào)句型。例1：Mr. Brown didnt come back until eleven oclock.可變?yōu)椋篒t was n

9、ot until eleven oclock that Mr. Brown came back.例2 The rain didnt stop until midnight.可變?yōu)椋篒t was not until midnight that the rain stopped. it作形式賓語的結(jié)構(gòu)【知識(shí)點(diǎn)解析】 It was Peteit作形式賓語的結(jié)構(gòu)【知識(shí)點(diǎn)解析】注意：強(qiáng)調(diào)句也可變?yōu)樘厥庖蓡柧淅?：It was in 1949 that the PRC was founded.可變?yōu)椋篧hen was it that the PRC was founded?例2 Your dad work

10、ed in this factory two years ago.可變?yōu)椋篧here was it that your dad worked two years ago?22. Its + 地點(diǎn)狀語+ that（強(qiáng)調(diào)句。如：It was in the town that I was born.(in the town為地點(diǎn)狀語，強(qiáng)調(diào)句型)我出生在這個(gè)鎮(zhèn)子。 it作形式賓語的結(jié)構(gòu)【知識(shí)點(diǎn)解析】注意：強(qiáng)調(diào)句也可變?yōu)樘厥鈏t作形式賓語的結(jié)構(gòu)【知識(shí)點(diǎn)解析】3. Its +地點(diǎn)名詞+ where (定語從句)。如：It is the town where I was born.(the town 為地點(diǎn)

11、名詞，定語從句)這是我出生的鎮(zhèn)子。4. Its + 時(shí)間名詞+ when(時(shí)間狀語從句)。如：It was 8 oclock when he returned.(8 oclock 是時(shí)間名詞，時(shí)間狀語從句)他回來的時(shí)候是八點(diǎn)鐘5. Its + 時(shí)間狀語 +that(強(qiáng)調(diào)句)。如：It was at 8 oclock that he returned.(at 8 oclock是時(shí)間狀語，強(qiáng)調(diào)句)他是在八點(diǎn)鐘回來的。 it作形式賓語的結(jié)構(gòu)【知識(shí)點(diǎn)解析】3. Its +地點(diǎn)名詞it作形式賓語的結(jié)構(gòu)【知識(shí)點(diǎn)解析】6. if it is convenient to you: 如果你方便的話。如：If i

12、t is convenient to you, you can start tomorrow.如果方便的話，你明天可以動(dòng)身。7. believe it or not 信不信由你。如：Believe it or not, Ill go abroad next month.不管你信還是不信，我下個(gè)月要出國。Believe it or not, we were left waiting in the rain for two hours.信不信由你，我們冒雨一直等了兩個(gè)小時(shí)。8. Its time thatdid / should do (定語從句)。 如：It is time that I wen

13、t and picked up my daughter from school.我該去學(xué)校接我女兒放學(xué)了。 it作形式賓語的結(jié)構(gòu)【知識(shí)點(diǎn)解析】6. if it is cit作形式賓語的結(jié)構(gòu)【知識(shí)點(diǎn)解析】Its high time that we stopped/should stop this practice.我們的確該停止這種做法了。9. It is /has beensincedid (時(shí)間狀語從句)。如：It is just a week since we arrived here.我們來這里已一星期了。10. It wont be before用不了（多長時(shí)間）就會(huì) 如：It wil

14、l be a long time before we finish the task.我們還需要很長時(shí)間才能完成這項(xiàng)任務(wù)。11. It will bebefore得過（多長時(shí)間）才 如：It wasnt long before he learned to use the computer.不久他就學(xué)會(huì)使用計(jì)算機(jī)了。 it作形式賓語的結(jié)構(gòu)【知識(shí)點(diǎn)解析】Its high tiit作形式賓語的結(jié)構(gòu)【知識(shí)點(diǎn)解析】12. It wasnt before沒過（多長時(shí)間）就 如：It was some time before he told me about this affair.過了一段時(shí)間之后他告訴了

15、我這件事。13. It wasbefore過了（多長時(shí)間）才如：It wont be long before we meet again.不久之后我們還會(huì)再見面的。四、易混用其他句型英語中有一些句型不含it, 但卻易被誤用了it，常見的有以下句型：it作形式賓語的結(jié)構(gòu)【知識(shí)點(diǎn)解析】12. It wasntit作形式賓語的結(jié)構(gòu)【知識(shí)點(diǎn)解析】1. There is something/nothing wrong/ the matter with sb. / sth.如：There is nothing wrong /the matter with him. Hes just pretending.

16、他沒什么事，他只是在裝呢。2. There is no doubt about對毫不懷疑或There is no doubt that對毫不懷疑。如：There is no doubt about his suitability for the job.毫無疑問，他適合這個(gè)工作。There is no doubt about the fact.關(guān)于這個(gè)事實(shí)毫無懷疑。There is no doubt that he is hard to deal with.毫無置疑他很難對付。it作形式賓語的結(jié)構(gòu)【知識(shí)點(diǎn)解析】1. There is sit作形式賓語的結(jié)構(gòu)【知識(shí)點(diǎn)解析】3. There is

17、no need (for sb.) to do sth. 沒必要。如：There was no need for him to remain in Paris.他沒有必要繼續(xù)留在巴黎。There is no need for you to start yet.你現(xiàn)在還不必動(dòng)身。4. There is no/a possibility that 沒可能/有可能 (= It is impossible/possible that ) 如：There is a possibility that the train may be late.可能火車要晚點(diǎn)There is no possibility

18、that well see him this weekend.我們本周末不可能見到他。it作形式賓語的結(jié)構(gòu)【知識(shí)點(diǎn)解析】3. There is nit作形式賓語的結(jié)構(gòu)【知識(shí)點(diǎn)解析】5. There is a chance that 可能如：There is a chance that the sick child will get well.這個(gè)生病的孩子可能會(huì)好起來的。6. There be no/ some differences betweenand和之間沒/有區(qū)別。如：There are some differences between the two languages.這兩種語言之

19、間有些區(qū)別。it作形式賓語的結(jié)構(gòu)【知識(shí)點(diǎn)解析】5. There is ait作形式賓語的結(jié)構(gòu)【知識(shí)點(diǎn)解析】7. After what seemed + 時(shí)間。如：After what seemed a very long time, the wounded soldier came back to life.在經(jīng)過似乎很長的一段時(shí)間之后，那個(gè)受傷的士兵蘇醒了過來。8. There be difficulty/ trouble (in) doing sth.干有困難。如：There was no difficulty in finding him.找到他沒費(fèi)什么事。it作形式賓語的結(jié)構(gòu)【知識(shí)點(diǎn)解

20、析】7. After whatit作形式賓語的結(jié)構(gòu)【典型例題】1. He found _ to sleep. A. difficult to get B. it difficult getting C. it difficult to get D. that difficult to get答案：C解析：句意：他發(fā)現(xiàn)很難入睡。分析：find 后常接it作形式賓語的形式，句型為find+ it+ adj. +to do sth.結(jié)合選項(xiàng)可知C項(xiàng)正確。 it作形式賓語的結(jié)構(gòu)【典型例題】1. He found _it作形式賓語的結(jié)構(gòu)【典型例題】2. I think is impossible for me to climb such a high mountain. A. it B. this C. that D. these答案：A解析：句意：我想對于我來說爬上這么高的山是不可能的。it 代詞，可代替物；也可作形式主語或形式賓語；this 這個(gè)，指示代詞；that 那個(gè)，指示代詞；these這些。 這里是句型It is +形容詞+for sb. to do sth.，對于某