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It的用法及练习题


It 的用法
It 的用法在高考中也是重现率较高的语言点,尤其是 it 用于强调句。其考查方式多通过“单项填空”进行,偶尔也出 现在“短文改错”和“完形填空”中。 1. It was only when I reread his poems recently ___ I began to appreciate their beauty. A.until B.that C

.then D.so 正确答案:B 此题考查强调句,所以用 that。 2. I hate ____when people talk with their mouths full. A.it B.that C.these D.them 正确答案:A 此题考查 it 作形式宾语的用法,所以选 A。 3.(短文改错)David and I did not agree and David pointed to a path which he thought it would probably lead to a village. 正确答案:去掉 it,因为定语从句中已有宾语 which。

一、要点点拔
1.代替上文中提到过的人或事物。指代人时,一般用于小孩或身份不十分明朗的人。 1) -Who is the baby?-It?s my teacher ?s son. 2) -Who is that gentleman?-It's my friend Tom.He(不可用 It) wants to see you. 2.用于表达天气、环境、时间、距离、季节等。例如: 1) It?s half an hour ?s walk from here to our school.2) It?s nice and warm here. 3) But it's two o'clock now, and it's time for us to go to school. 3.用作形式主语.it 没有具体意义,而只是帮助把真正的主语移至句子后尾,使句子显得平稳一些,能借 it 给移至 句子后尾的主语有三种:一种由不定式表示,一种由动名词表示,一种由从句表示。 1).It 替代真正的主语——动词不定式短语. It is easier to say than to do . It is a good act to help the others. 2).it 替代真正的主语 —— 动名词短语 , 以动名词短语做主语的句子,主要在以 no good, no use, no harm, dangerous, foolish 等词作表语的句中. It?s no harm drinking running water in that area。 It?s foolish talking like that. 3).it 替代从句作主语,用从句做主语的带 it 的句子很多,常见的有下面几类: ① It is a pity (a shame ,a fact ,a wonder ,a good thing,etc. )that… It is a shame that he didn?t pass the exam. ② It is strange ( surprising,obvious ,true, good,possible,clear,etc. ) that…。 It was clear that they had no desire for peace. ③ It seems (happened ,turned out,etc.)that… It seemed that things were not as they expected. ④ It is said ( decided ,expected ,etc)that … It is said that the tickets have been sold out . 4.用作形式宾语。 当复合宾语中的宾语是不定式,-ing 短语或从句往往用 it 作形式宾语,而将真正的宾语移至句末,句子重心后移。 1) We find it difficult to learn English well in such a short time. 2) We think it no use crying over spilt milk. 3) We made it clear when and where we were going to have the meeting. 5.用于强调句型,即“It is/was+被强调部分+that/who/whom+其它”句型之中。 使用该句型有以下几点请注意: ① 强调句的谓语 is 或 was 永远用单数. It was yesterday that I met your father in the street. ②不管被强调部分是哪种状语,只能用 that 连接,不得使用 where、when 等连词. It was in the street that I met your father yesterday. ③被强调部分为人时,可用 who(主格或宾格)和 whom(宾格)代替 that,用 that 也行。 1)It was your father that/whom /who I met in the street yesterday. 2) It was I that/who met your father in the street yesterday. ④强调句中 也要注意主谓一致、人称一致和否定转移的问题。 1)It is they who are our friends.2) It was not until ten o'clock that we got home last night. ⑤注意不要混淆强调句和其他从句。It is was…that…为强调句标志,去掉后仍可组成一个完整的句子,只是没被 强调,而其他从句一般不具备这一特征。

比较:1) It was ten o'clock when we got home last night.我们昨晚到家时已十点了。 2) It was at ten o'clock that we got home last night.我们昨晚是在十点到家的。 第一句不是强调句, when 不可改为 that,因为去掉 it was 和 that 后, 只能组成“We got home ten o'clock last night. ” 这样一个不完整的句子;第二句是强调句,that 不可改为 when.

二、常用句型及考点
I. 形式主语型 1. It is clear (obvious,true,possible,certain…) that… 2. It is important (necessary,right,strange,natural…)that… 掌握本句型,应该记住所列举的形容词,并且记住 that 后的从句应用虚拟语气 (should+动词原形),should 可以 省去。 3. It is no good (use) doing sth. 4. It is a pity (a shame …) that… 本句型中,that 后的从句一般用虚拟语气 (should 十动词原形),should 可以省去。表示出乎意料,常译为“竟然”。 没有这种意义时,则不用虚拟语气。 5. It is time (about time,high time) that… 本句型中 that 后的从句应该用虚拟语气。 6. It is the first (second…)time that… 7. It is said (reported,learned….)that… 8. It is suggested (ordered…) that… 本句型中的过去分词应该是表示请求、建议、命令等的词, that 后的从句要用虚拟语气(should 十动词原形),should 可以省略。常译为“据建议;有命令……”。 9. It happens (seems,appears) that… 10. It takes sb…to do sth. 11. It doesn?t matter whether… 12. It is kind (of sb) to do sth. 本句型中的不定式如果需要逻辑主语,则须要前置介词 of, 而句型中的形容词必须是能表示逻辑主语特征的形容词, 常见的有 bad, brave, careless, clever, cruel, foolish, honest, horrible,kind,lazy,modest,naughty, polite,rude,silly, stupid,wise,wrong 等。 13. It is necessary ( for sb) to do sth. 14. It is (just) like sb to do sth. 本句型为“某人(恰恰)是…… 样子”。用来表示赞扬或不满,若用否定式,则表示怀疑。 例:It's like him to leave the work to others. 他就是这样的一个人,把工作推给别人。 15. It is up to sb to do sth. 本句型表示“谊由某人做……”。 II.强调句型 It is+ 被强调部分+that/who… 本句型中被强调部分可以是主语、宾语或状语。强调的主语如果是人,that 可以 由 who 换用。 III.其他句型 1. It is…since… 本句型主句中用时间作表语,一般用现在时或完成时,since 引导的从句常用瞬 间动词的一般过去时态。主句如用一般过去时,则从句用过去完成时。 2. It is…when… 本句型中的 when 引导的是一个时间状语从句,主句中的 it 指时间,表语由具体 的时间充当。 3. It looks (seems) as if. . . 本句型中的 as if 引导一个状语从句,常译为“看起来好像……”。如果与事实不相 符合,则用虚拟语气. 例 1 It looks as if he is ill (真的病了) . 例 2 It looks as if he were ill (没有生病) .

Exercises:
一.单项选择 1.It was at the gate ____ he told me the news. when 2.Is ____necessary to tell his father everything 3.Was it in this palace ____ the last emperor died? which 4.Is ____ possible to fly to the moon in a spaceship? 5.Was it during the Second World War ____he died? then A. that A. it A. that A. now A. that B. what C. which D.

B. that C. what D. he B. in which C. in where D. B. man B. while C. that D. it C. in which D.

6.Is ____necessary to complete the design before National Day? A. this B. that C. it D. he 7.I don't think ____possible to master a foreign language without much memory work. A. this B. that C. Its D. it 8.Does ____matter if he can't finish the job on time? A. this B. that C. he D. it 9.It was not ____she took off her dark glasses ____ ,I realized she was a famous film star. A. when; that B. until; that C. until; when D. when; then 10.Tom?s mother kept telling him that he should work harder, but ____didn?t help. A. he B. which C. she D. it 11.____is a fact that English is being accepted as an international language. A. There B. This C. That D. It 12. Is ________ possible to fly to the moon in a spaceship? A.now B.man C.that D.it 13. Our food and service are better than ________ used to be. A. it B. we C. they D. them 14.________ appears to me ________ the report must be truth. A.That; it B.It; that C.It; it D.That; that 15.He feels ________ duty to help others. A.that he B.that his C.it he D.it his 16.Take ________ easy. The roads are icy. A.it B.them C.us D.you 17. The TV sets made in China are much better than ________ in Japan. A. that B. those C. them D. It 18.—— Have you found the bike you lost yesterday?—— Yes, I've found ________ already. A.it B.that C.the one D.that one 19.—— I'm looking for a flat.—— Would you like ____ with ____ garden? A.it; the B.it; a C.one; a D.one; the 20.________ was ________ who I met in the museum this morning. A.It; him B.It; he C.That; he D. That; him 21.It was in the rice fields ________ we had our League meeting. A.where B.that C.in which D.on which 22. ________ you come to the party so late? A. Why is it B. Why it is C. Why it is that D. Why is it that 23.—— Were all three people in the car injured in the accident —— No, ___ only the two passengers ___ got hurt. A.they were; that B.there was; that C.it was; who D.there are; who 24.I don' t think ________ possible to master a foreign language without much memory work . A.this B.that C.its D.it 25.It was not ________ she took off her glasses ________ I realized she was a famous film star. A. when; that B. until; that C. until; when D. when; then 26.It was not until 1920 ____ regular radio broadcasts began. A. while B. which C. that D. since 27. ________ is a fact that English is being accepted as an international language. A. There B. This C. That D. It 28.It was about 600 years ago ________ the first clock with a face and an hour hand was made. A.that B.until C.before D.when 29.It was only when I reread his poems recently ____ I began to appreciate their beauty. A.until B.that C.then D.So 30.I hate ______ when people talk with their mouths full. A.it B.that C.these D.them 31. —— Why don't we take a little break? — Didn't we just have ______ ? A. it B. that C. one D. this 32.Was it during the Second World War ____ he died? A. that B. While C. in which D. Then 33.Is ____ possible to fly to the moon in a spaceship? A. now B. that C. it D. Man 34.I don't think ___ possible to master a foreign language without much memory work. A.This B.that C.Its D.It 35.___ is a fact that English is being accepted as an international language. A.There B.This C.That D.It 36.It was about 600 years ago ___ the first clock with face and an hour hand was made.

A.that B.until C.before D.when 37.____computers play such an important part in our daily life? A.Why it is that B.Why is it that C.Why was it that D.Why is it 38. Was it during the Second World War _____he died? A. that B. while C. in which D.then 39. Is ____ necessary to take off our shoes when we enter the lab? A. everyone B.this C.her D.it 40. Is ____ possible to fly to the moon in a spaceship? A.now B.that C.it D.man 41. I don?t think ___ possible to master a foreign language without much memory work. A.this B.that C.its D.it 42. She heard of a terrible noise, ___ brought her heart into her mouth. A.it B.which C.this D.that 43. Alice received an invitation from her boss, ____ came as a surprise.A.it B.that C.which D.he 44. Does ____ matter if he can?t finish the job on time? A.this B.that C.he D.it 45.Tom?s mother kept telling him that he should work harder, but ____ didn?t help. A.he B.which C.she D.it 46.The weather turned out to be very good, ___ was more than we could expect. A.what B.which C.that D.it 47.____is a fact that English is being accepted as an international language. A .There B.This C.That D.It 48.I hope there are enough glasses for each guest to have _____. A.it B.those C.them D.one 49.It was about 600 years ago___the first clock with a face and an hour hand was made. A.that B.until C.before D.when 50.I hate ____ when people talk with their mouths full. A.it B.that C.these D.them 51.It was only when I reread his poems recently____ I began to appreciate their beauty. A.until B.that C.then D.so 52.It is the ability to do the job ____ matters not where you come from or what you are. A.one B.that C.what D.it 53.It ____ you that ____ to blame. A.is;is B.is; are C.are;are D.are;is 54.Was_____that I saw last night at the concert? A.it you B.not you C.you D.that you 55.____ electricity plays such an important part in our life? A.Why is it that B.Why is it C.Why it is that D.Why is that 56.It was ____ he said _____ disappointed me. A.what;what B.that;that C.what;that D.that;what 57.It was in the lab ___ was taken charge of by Professor Harris ___ they did the experiment. A.which; that B.that; what C.whom; that D.which; where 58.Many people now make a rule to buy cards for their friends before Christmas. A.themselves B.it C.that D.this 59.Someone is at the door, who is ? A.this B.that C.it D.he 60.—It is raining cats and dogs. — . A.So it is B.So is it C.Neither it is D.Neither is it

二.分析 it 成分,辨清相似句型。 1.①_____ is well know to us all that the earth is round.②____ is well known to us all, the earth is round. A.That B.As C.It D.Which 2. ①_____doesn’t matter much whether he’ll come to the party. ②I feel ____ an honour to be invited to speak here. A.this B.it C.that D.what 3. ①___ no wonder that he has passed the exam. ②___ no need for you to wait here. A.There being B.It was C.It is D.There is 4. ①Was it the house ____ Abraham Lincoln was born? ②Was it in the house ____ Abraham Lincoln was born? A.that B.where C.which D.both A and B 5. ① It’s very kind ____ you to help us. ② It’s very important _____ you to keep the balance of nature. A.for B.of C.to D.with . 6. ① It is no good ____ such a thing. ②It’s of no importance _____ such a thing. A.do B.to do C.doing D.done 7.①It's time that we ____ to school.②It is the second time that we _____ to Beijing. A.go B.went C.have been D.have gone 8.①It's tomorrow ____ he is going to Beijing. ②It was 8 o'clock _____ he went to school. A.that B.when C.before D.since 9.①It is 3 years ____ he joined the army. ②It will be 3 years ____ we meet again. A.before B.after C.since D.when 答案:一.单项选择 1-30 ABADA CDDBD DDCBD ABACA BDADB CDABA 31-60 CACDD AB ADC DBCDD BDDAA BBBAA CABCA 二.分析 it 成分, 辨清相似句型。 21.CB 22.BB 23.CD 24.BA 25.BA 26.CB 27.BC 28.AB 29.CA


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