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1、传播优秀Word版文档 ，希望对您有帮助，可双击去除！高三一轮复习 It的用法总结 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“语法填空”进行，偶尔也出现在“短文改错”和“完形填空”中。一、it 作人称代词的用法1. 指事物 作为人称代词，it 可以除人以外的一切事物或动物。如： I dropped my watch and it broke. Its hard work, but I enjoy it. “Where is the dog?” “Its in the bedroom. ” 2. 指人 it 指人主要用于指不性别不明的婴儿或用于确认某人的身
2、份。如： Is it a boy or a girl? There is a knock on the door. It must be the postman. 【说明】在答语中，常用来指本人，如说 Its me。3. 代替某些代词 代词 it 还可用于代替指示代词this, that 以及复合不定代词 something, anything, nothing等。如： “Whats this?” “Its a new machine. ” Nothing is wrong, is it? 二、it 作非人称代词的用法1. 基本用法 ： 主要用于指时间、距离、价值、天气、气候及温度等自然现象。
3、如： Its too late to go there now. It rained all day yesterday. It can get very hot here. 2. 用于某些句型： Its time for sb to do sth. 某人该干某事了。 Its (about / high) time + that-从句. 某人该做某事了。 (从句谓语用过去式，有时也用“should+动词原形”) Its first (second) time + that-从句. 某人第几次干某事。(从句谓语用现在完成时) Its + 时间段 + since-从句. 自从有一段时间了。 Its
4、 + 时间段 + before-从句. 过多长的时间才 Its not until.that.直到.才.三、it用作形式主语1. 基本用法：当不定式、动名词、从句等复杂成分用作句子主语时，为保持句子平衡，通常把真正的主语放在句末，而在句首使用形式主语it。如：Its very important to remember this. Its hard work climbing mountains. Its unknown when he will come. 2. 用作形式主语的的重要句型(1) It + be + adj. for (of) sb to do sth 某人做某事 It is
5、hard for him to make up his mind. （介词for表示对象，意为“对来说” ） It was foolish of her to say such a thing. （of 用于指某人的性格、属性、特征等）(2) It takes sb + 时间段 + to do sth. 某人做某事花了时间(3) It is up to sb to do sth. 该由某人做某事(4) it look (seem, appear, happen, occur) that as if 似乎(5) If it were not for / If it hadnt been for
6、若不是因为四、it用作形式宾语当不定式、动名词、从句等复杂成分用作宾语且其后跟有宾语补足语时，通常会在宾语补足语前使用形式宾语，而将真正的宾语移至句末。其基本结构为“动词+it+宾语补足语+不定式(动名词或从句)”。如：I find it difficult to do the job well. I think it best that you should stay here. We think it no use complaining. 五、用于强调句型 即“It is/was被强调部分that/who/whom+其它”句型之中。 It was yesterday that I met
7、 your father in the street It was in the street that I met your father yesterday. It的相关练习 姓名：_ 得分：_一、选择题 20( )1. It was at the gate _ he told me the news. A. that B. what C. which D. when( )2. Is _necessary to complete the design before National Day? A. this B. that C. it D. He( )3.I dont think _pos
8、sible to master a foreign language without much memory work. A. this B. that C. its D. it( )4.Does _matter if he cant finish the job on time? A. this B. that C. he D. it ( )5.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; whe
9、n D. when; then 二、填空 201._（据报道）alotofpeoplelosttheirjobsinthecitylastmonth. 2._（碰巧）Ihadbeenawaywhenhecalled. 3._（看来）nobodyknowswhathashappened.(seem) 4._（感到遗憾）Ihaventbeentotheget-together. 5.Itsnouse_（为打翻的牛奶而哭泣).3、 改写下面的强调句 40Myfatherdidtheexperimentinthelabyesterdayevening. 主 宾 地点 时间 1._（强调主语）2._（强
10、调宾语）3._（强调时间状语）4._（强调地点状语）I met your father in the street yesterday .5. _(强调宾语)6. _（强调地点状语）7.He didnt realize his fault until we pointed out it to him. （改为下面句型结构） It was not until _that _. 四、翻译 20 1.是该我们好好学习的时候了。_ 2.健康饮食是非常重要的。_ 3.抱怨是毫无用处的,他们从来都不听的。_ 4. 我们昨晚直到十点才到家。_It的答案一ACDDB 二. It was reported th
11、atIt happened thatIt seems thatI feel it a pity thatcryingoverspiltmilk三、1.Itwasmyfatherdidtheexperimentinthelabyesterdayevening.（强调主语）Itwastheexperimentthatmyfatherdidinthelabyesterdayevening.（强调宾语）Itwasyesterdayeveningthatmyfatherdidtheexperimentinthelab.（强调时间状语）Itwasinthelabthatmyfatherdidtheexpe
12、rimentyesterdayevening.（强调地点状语）2.Its your father that/who I met in the street yesterday. It was in the street that I met your father.3. we pointed out his fault to him; he realized it.四1.Its time for us to study hard. /Its high time that we studied hard.2.Its is important to eat healthy food. 3.It is useless to complain,they never listen./ Its /Theres no use complaining ,they never listen.4.It was not until ten oclock that we got home last night