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1、 聚焦高考聚焦高考itit精练与解析精练与解析梳理it用法精练与解析I. 代词 it a. 用作人称代词, 代替前文提到的事物。 My watch is missing. I cant find (it) anywhere Her father has gone abroad. Have you heard about (it)? b. 代替指示代词this, that。Whats this? (Its) a computer Whose pen is that? Its minec. 表示时间、天气、距离、季节、明暗等。Its time for lunch.Its getting warme
2、r and warmerIts forty years since my hometown was liberated Its summer now How far is it from here to the airport？ Its about twenty minutes walk from here to the bus stopII. 引导词： a. 作形式主语, 代替由不定式, 动名词或从句表示的真正主语。其基本句型为： It (形式主语) +adj. + to+ v. It (形式主语) +adj. + that (subject (主语)+v. ) It (形式主语)+adj.
3、+ whether (subject +v.) It is adj.forsb. to do sth. (of ) Itseems (appears)that (subject v.) happens It is very important to help each other It is no use / useless going there again Its not decided yet when they will leave for Shanghai It seems that he has caught a cold. =He seems to have caught a c
4、old Is _ possible to master a foreign language in two months? A. now B. that C. it D. man Is _ necessary to tell his father the truth? A. it B. that C. what D. heb. 作形式宾语, 代替由不定式、动名词或从句表示的真正宾语。其主要基 本句型为: 主语谓语it (形式宾语)宾语补足语to do sth. (doing sth. 或that从句). Marx found it important to study the situatio
5、n in Russia She thought it no use to write to him again They want to make it clear to the public that they do an important and necessary job Do you think _ difficult to work out this maths problem? A. that B. very C. yourself D. it Having been there many times, _to find Mr. Wangs house. A .it was ea
6、sy for him B. for him it was easy C. he found it easy D. he found easy c. 用在强调句型中, 为了强调句子的某一成分(通常是主语、宾语或状语), 常用结构: It is / was 被强调部分that (who) . I met Tom in the street yesterday It was I who (that) met Tom in the street yesterday. It was Tom that I met in the street yesterday. It was in the street
7、that I met Tom yesterday. It was yesterday that I met Tom in the street.主语宾语时间状语地点状语 _ she had arrived home that she remembered her appointment (预约) with the doctor. A. It was not until B. Not until it was C. Not until D. Until it was not 1. It _ for this reason _ her uncle moved out of New York.A.
8、is . which B. was . why C. was . that D. were . How 2. It was _ he said at the meeting _ disappointed me.A. what, that B. that, that C. what, what D. that, whatDrills3. -Wasnt it Dr. Li who spoke to you just now?- _ .A. I didnt know he was B. Yes, he didC. No, he didnt D. Yes, he was 4. Was it durin
9、g the Second World War_ he died?A. this B. then C. that D. while5. I dont think _ possible to master a foreign language without much memory work.A. this B. it C. that D. its6. Does _ matter if he cant finish the job on time?A. it B. this C. that D. he7. Toms mother kept telling him that he should wo
10、rk harder, but _didnt help.A. he B. which C. she D. it8. Was _ in 1998 _ your teacher graduated from university?A. that, that B. it. which C. it. that D. it. when9. He felt _ duty to work for human rights and progress.A. it his B. his C. that is a D. that is his 10. _ is no good _ without doing anyt
11、hing.A. This. talking B. It. to speakC. That. to say D. It. talking11. All the children except my partner _ late because of traffic jam.A. is B. are C. was D. has been12. Your new clothes fit you, but mine _ me.A. dont fit B. doesnt fit C. dont fit for D. arent fit(II) It的用法及强调句型 性质功 能例 句代词用作人称代词，代替
12、上文提到的人或事物。 Who is it ? Its me. Youve helped me a lot; Ill never forget it. 性质质功 能例 句代词词用以代替指示代词词this或that。 Whats this? Its a computer Whose book is that? Its hers 性质功 能例 句代词表示时间、天气、距离、价钱等。 Its time for lunchIts raining hardIts two miles from the school to our home引导导词词作形式主语语, 代替由不定式、动动名词词或从句等表示的真正主语
13、语。It is easy to buy a new radio.It is no use telling him that.It doesnt matter whether she comes or not. 引导词作形式宾语, 代替由不定式、动名词或从句等表示的真正宾语。I feel it my duty to help him.We thought it no use doing that.Ive made it clear that nobody is allowed to smoke here. 引 导 词表示强调,其结构是: It is/was+强调 部分+ that+原句剩余部分。
14、此结构 只限于强调状语、主语和宾语。 注意：如果强调的是人, 其后用 that或who 均可; 如果强调的是物 、时间或地点等状语, 其后只能用 that不用where、when、why。引 导 词I saw Tom yesterday here. It was I that/who saw Tom yesterday here It was Tom that /who I saw yesterday here It was yesterday that I saw Tom here It was here that I saw Tom yesterday引 导 词注意: 若原句是notuntil句型, 在强调 until 部分时,要把否定形式放入被强调 部分。例如: He didnt leave until l returned. = It was not until I returned
