it用法及练习附答案

1、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.It s hard work, but I enjoy it.“Where is the dog?” “It s 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份。如：Is it a boy or a girl?There is a

2、 knock on the door. It must be the postman.【说明】在答语中，常用来指本人，如说It s 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?” “It s 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。如：It s too late to go there now.It rained all d

3、ay yesterday.It can get very hot here.2. 用于某些句型：It s time for sbto do sth.某人该干某事了。It s (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”)It s first (second) time + that-从句.某人第几次干某事。( 从句谓语用现在完成时 )It s + 时间段+ since-从句 .自从有一段时间了。It s + 时间段+ before-从句 .过多长的时间才Its not until.that.直到 .才 .三

4、、 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：It s veryimportant to remember this.It s hard work climbing mountains.It s 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 hard for him to make up his mind.（介词 for 表示对象，意为“对来说”）I

5、t 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 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

6、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 your father in the streetIt was in the street that I

7、 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. thatB. whatC. whichD. when()2. Is _necessary to complete the design before National Day?A. thisB. thatC. itD. He()3.I don't think _possible to master a foreign language without much memory work.

8、A. thisB. thatC. itsD. it()4.Does _matter if he can't finish the job on time?A. thisB. thatC. heD. it()5.Itwas not_she tookoff herdarkglasses _ I realizedshe was a famous film star.A. when; thatB. until; thatC. until; whenD. when; then二、填空20 1._（据报道）alotofpeoplelosttheirjobsinthecitylastmonth.2.

9、 _（碰巧 ）I had been away when he called.3._（看来） nobodyknowswhathashappened.(seem)4._（感到遗憾 ）Ihaven tbeentotheget-together.5.It snouse_（为打翻的牛奶而哭泣).三、改写下面的强调句40 Myfatherdidtheexperimentinthelabyesterdayevening.主宾地点时间1._ （强调主语）2._ （强调宾语）3._ （强调时间状语）4._ （强调地点状语）I met your father in the street yesterday .5.

10、_( 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 that It happened thatIt seems thatI feel it a pity thatcryingoverspiltmilk三

11、、1.Itwas myfatherdidtheexperimentinthelabyesterdayevening.（强调主语）Itwastheexperimentthatmy fatherdidinthelab yesterdayevening. （强调宾语）Itwasyesterdayeveningthatmy fatherdidtheexperimentinthe lab. （强调时间状语）Itwasinthelabthatmyfatherdidtheexperimentyesterdayevening. （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. /It s high time that we studied hard.2.Its is import