高二英语it的用法人教实验版 知识精讲

1、用心 爱心 专心高二英语高二英语 itit 的用法的用法人教实验版人教实验版【同步教育信息同步教育信息】一. 本周教学内容：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. (NMET98) It was only when I reread his poems recently _ I began to appreciate their beauty. A. untilB. thatC. thenD. so正确答案：B 此题考查强调句，所以用 that。2. (NMET98) I

2、 hate_ when people talk with their mouths full. A. itB. thatC. theseD. them正确答案：A 此题考查 it 作形式宾语的用法，所以选 A。3. (NMET91，短文改错)David and I did not agree and David pointed to a path which he thought it wouldprobably lead to a village. 正确答案：去掉 it，因为定语从句中已有宾语 which。重点讲解一、要点点拨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

3、分明朗的人。1) Who is the baby? Its my teachers son. 2) Who is that gentleman? Its 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) Its half an hours walk from here to our school. 2) Its nice and warm here. 3) But its two oclock now, and its time for us to go to school. 3. 用作形式主语。

4、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 被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。Its no harm drinking running water i

5、n that area。Its 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： It is a pity (a shame ,a fact ,a wonder ,a good thing, etc. )thatIt is a shame that he didnt pass the exam.用心 爱心 专心 It is strange ( surprising, obvious ,true, good, possible, clear, etc. ) that 。It was clear that the

6、y had no desire for peace. It seems (happened ,turned out, etc.)thatIt seemed that things were not as they expected. 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 lea

7、rn 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： 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. 不管被强

8、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. 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. 强调句中 也要注意主谓一致、人称一致和否定转移

9、的问题。1) It is they who are our friends. 2) It was not until ten oclock that we got home last night. 注意不要混淆强调句和其他从句。It is wasthat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 oclock when we got home last night. 我们昨晚到家时已十点了。2) It was at ten oclock that we got home last night. 我们昨晚是在十点到家

10、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 oclock last night. ”这是一个不完整的句子；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

11、)，should 可以省去。 3. It is no good (use) doing sth. 用心 爱心 专心 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，lear

12、ned. )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 sbto do sth. 11. It doesnt 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，则需要前置介词 of，而句型中的形容词必须是能表示逻辑主语特征

13、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：Its like him to leave the work to others. 他就是这样的一个

14、人，把工作推给别人。 15. It is up to sb to do sth. 本句型表示“宜由某人做” 。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 issince 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 iswhen 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 (

15、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. It looks as if he is ill (真的病了) . It looks as if he were ill (没有生病) .用心 爱心 专心【模拟试题模拟试题】一. 单项选择1. It was at the gate _ he told me the news. A. that B. what C. which D. when2. Is _necessary to tell his father everything A. it B. that

16、 C. what D. he3. Was it in this palace _ the last emperor died?A. that B. in which C. in where D. which 4. Is _ possible to fly to the moon in a spaceship?A. now B. man C. that D. it 5. Was it during the Second World War _he died? A. that B. while C. in which D. then 6. Is _necessary to complete the

17、 design before National Day? A. this B. that C. it D. he7. I dont think _possible to master a foreign language without much memory work. A. this B. that C. its D. it8. Does _matter if he cant finish the job on time?A. this B. that C. he D. it 9. It was not _she took off her dark glasses _ ,I realize

18、d she was a famous film star. A. when; that B. until; that C. until; when D. when; then10. Toms mother kept telling him that he should work harder, but _didnt 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. It12

19、. Is _ possible to fly to the moon in a spaceship? A. now B. man C. that D. it13. Our food and service are better than _ used to be.A. it B. we C. they D. them14. _ appears to me _ the report must be truth.A. That; it B. It; that C. It; it D. That; that15. He feels _ duty to help others.A. that he B

20、. that his C. it he D. it his16. Take _ easy. The roads are icy.A. it B. them C. us D. you17. The TV sets made in China are much better than _ in Japan.A. that B. those C. them D. it18. Have you found the bike you lost yesterday? Yes, Ive found _ already.用心 爱心 专心A. it B. that C. the one D. that one1

21、9. Im looking for a flat. Would you like _ with _ garden?A. it; the B. it; a C. one; a D. one; the20. _ was _ who I met in the museum this morning.A. It; him B. It; he C. That; he D. That; him21. It was in the rice fields _ we had our League meeting.A. where B. that C. in which D. on which 22. _ you

22、 come to the party so late?A. Why is it B. Why it isC. Why it is that D. Why is it that23. 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; thatC. it was; who D. there are; who 24. I don t think _ possible to master

23、a foreign language without much memory work .A. this B. that C. its D. it25. 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; then26. It was not until 1920 _ regular radio broadcasts began.A. while B. which C. that D.

24、 since27. _ is a fact that English is being accepted as an international language.A. There B. This C. That D. It28. 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. when29. It was only when I reread his poems recently _ I began to appre

25、ciate their beauty.A. until B. that C. then D. so30. I hate _ when people talk with their mouths full.A. it B. that C. these D. them31. Why dont we take a little break? Didnt we just have _ ?A. it B. that C. one D. this 32. Was it during the Second World War _ he died？(NMET88)A. that B. while C. in

26、which D. then33. Is _ possible to fly to the moon in a spaceship？(NMET88)A. now B. that C. it D. man34. I dont think _ possible to master a foreign language without much memory work. (NMET90) A. this B. that C. its D. it用心 爱心 专心35. _ is a fact that English is being accepted as an international langu

27、age. (NMET95)A. There B. This C. ThatD. It36. _computers play such an important part in our daily life?A. Why it is thatB. Why is it thatC. Why was it thatD. Why is it37. She heard of a terrible noise, _ brought her heart into her mouth. A. it B. which C. this D. that 38. Alice received an invitatio

28、n from her boss, _ came as a surprise. A. it B. that C. which D. he39. Does _ matter if he cant finish the job on time?A. this B. that C. he D. it40. Toms mother kept telling him that he should work harder, but _ didnt help. A. he B. which C. she D. it41. The weather turned out to be very good, _ wa

29、s more than we could expect. A. what B. which C. that D. it42. _is a fact that English is being accepted as an international language. A. There B. This C. That D. It43. I hope there are enough glasses for each guest to have _. A. it B. those C. them D. one44. It is the ability to do the job _ matter

30、s not where you come from or what you are. A. one B. that C. what D. it45. It _ you that _ to blame. A. is; is B. is; are C. are; are D. are; is46. Was_ that I saw last night at the concert?A. it you B. not you C. you D. that you 47. _ electricity plays such an important part in our life?A. Why is i

31、t that B. Why is it C. Why it is that D. Why is that 48. It was _ he said _ disappointed me. A. what; what B. that; that C. what; that D. that; what 49. 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; where50

32、. Many people now make a rule to buy cards for their friends before Christmas. A. themselves B. it C. that D. this 51. Someone is at the door, who is ?用心 爱心 专心A. this B. that C. it D. he 52. It is raining cats and dogs. . A. So it is B. So is it C. Neither it isD. Neither is it 二. 分析 it 成分，辨清相似句型。1.

33、 _ is well know to us all that the earth is round. _ is well known to us all, the earth is round. A. That B. As C. It D. Which2. _doesnt matter much whether hell come to the party. I feel _ an honour to be invited to speak here. A. this B. it C. that D. what 3. _ no wonder that he has passed the exam. _ no need for you to wait here. A. There being B. It was C. It is D. There is4. Was it the house _ Abraham Lincoln was born? Was it in the house _ Abraham Lincoln was