(完整版)人教版英语选修六高二unit3语法Grammar—it的用法(1)

it 充当形式主语，构成大量的常用句式。

要注意it后谓语不同的形式，并译成通顺的汉语。

1.It is a fact that... 事实是……It is a wonder that... 这真是个奇迹It is no wonder that... 难怪……2.It is obvious that... 很明显……,很清楚…It is strange that... 奇怪的是……，……令人费解3.It so happened that... 碰巧……，说来也巧It follows that... 从而……于是乎……,这样一来It seems that... 看来……It appears that... 看来……似乎It turns out that... 原来……，结果It occurred to me that... 我突然想到……4.It was said that... 据说……It was reported that... 据报道……It is believed that... 据认为，人们相信…It is universally accepted that... 普遍认为……It was announced that... 据宣布……It is estimated that... 据估计……It is to be noted that... 值得注意的是……It must be admitted that... 必须承认……It can safely be said that... 完全可以说……It can thus be concluded that... 由此可以得出结论……It doesn't matter... ……是无关紧要的It doesn't need to be bothered that... 无须担忧……It makes no difference... ……毫无区别、。

Unit3 单元语法详解“it”的用法一、代词it1. 代替前文提到的事物。

如：——Where is the dog?-It's in the bedroom. ——狗在哪?——在卧室里。

2. 指性别不明的婴儿或不明确身份的人。

如：There is a knock on the door. It must be the postman.有人在敲门，一定是邮递员。

3. 代替指示代词this，that。

如：——What's this?——It's a new machine. ——这是什么？——是一种新机器。

二、it 用于某些句型It's time for sth. 该做某事了It's time to do sth. 该做某事的时候了It's time for sb. to do sth. 是某人该做某事的时候了It's(about/high）time+that从句某人该做某事了（从句谓语用一般过去时）It's the first(second)time+that从句某人第几次做某事（从句谓语用现在完成时）It's+时间段+since从句自从……有多长时间了It will be/was+时间段+before从句过多长时间才……(1）It is the first time that I have been here.这是我第一次来这儿。

(2）It is three years since the war broke out.自战争爆发以来有三年了。

(3）It will be half a year before I come back.还得再过半年我才能回来。

三、it用作形式主语当不定式、动名词、从句等复杂成分用作句子主语时，为保持句子平衡，通常把真正的主语后置，而在句首使用形式主语t。

如：(1）It's unknown when he will come.他什么时候来还不知道。

高中英语人教版选修六Unit3AhealthylifeGrammar：it的用法（Ⅰ）学校:___________姓名：___________班级：___________考号：___________一、句型转换句型转换。

在空格处填上适当的单词，使上下两句话句意一致。

（每空一词）1． To my surprise, he thought that it was impossible for him to learn English well.→To my surprise, he thought _______ ___________ for him to learn English well. 2．36 students are said to have passed the exam in our class.→_______ _______ _______ ________ 36 students passed the exam in our class. 3． To give up smoking is not easy.→______ ______ not easy to give up smoking.4．Arguing about it is useless.→______ ________ useless arguing about it.5． I became stronger and stronger, which made my parents glad.→I became stronger and stronger, and ________ _______ _______ _______ _________.6． He felt it was his duty to serve the customers heart and soul.→He felt ________ _______ _______ to serve the customers heart and soul. 7． In the west, people send Christmas presents to their relatives and friends, making it a rule.→In the west, people ________ _______ _______ _______ to send Christmas presents to their relatives and friends.8．When and where to hold the match hasn’t been decided.→________ _______ _______ _______ when and where to hold the match.9．In my opinion, to finish our work in a week was difficult.→I found _______ _______ to finish our work in a week.10．We met each other two weeks ago.→_____ _______ ________ _______ _______ since we met each other.二、阅读选择阅读理解。

人教版高中英语选修六知识点梳理重点题型（常考知识点）巩固练习it的用法（1）概念引入小词it是我们学英语之初就学会的，是不是感觉它似乎有点无所不能，经常出现呀？那么我们是不是已经了解了it的用法了呢？本单元和下单元我们就把it的用法做一小结。

先看这些句子，想想it的用法是什么？1. It is a beautiful day here and I am sitting under the big tree at the end of the garden.(表天气)2. It seems amazing that at my age I am still fit enough to cycle 20 kilometres in anafternoon.(代替that从句作主语)3. It’s my birthday in two weeks’ time and I’ll be 82 years old!(表时间)4. Your mother tells me that you started smoking some time ago and now you are finding itdifficult to give it up.(第一个it代替to give it up作宾语；第二个it代替上文中“吸烟”的事) 下面我们就先学习it作为代词和形式主语、形式宾语的用法。

用法讲解代词it1. 作人称代词人称代词it是有实义的，是单数第三人称代词。

主格与宾格相同。

1）指代人以外的一切生物或事物，如前文提到的事物或未指明但谈话双方都知道的那件事；Ningbo is a beautiful city, isn’t it? 宁波是座美丽的城市，是不是？It doesn’t matter. 没关系。

2）替代前文中的this, that；This is your plan? Will you hand it in? 这是你的计划？你要交上去吗？3）指代婴儿、小孩或性别不明的人。

高中英语学习资料madeofjingetiejiGRAMMAR“it”的用法（一）【概括】it的用法好多，本单元我们主要学习它的基本用法以及它作形式主语或形式宾语的用法。

1.用作人称代词，指代上文提到的事物、动物、性别不明或没必需知道性其他人。

如：“Where’syourcar?”“It’sinthegarage.”Herdogwashowlingatthedoor,soheletitin.Thebabynextdoorkeptmeawake.Itcriedallnight.用作非人称代词，用来指代时间、日期、地址、天气、温度、距离、环境、状况等。

如：Itwas4o ’clockandthemailstillhadn’tcome.It’squitewarmatthemoment.It’sover200milesfromLondontoManchester.It’sgettingverycompetitiveinthecarindustry.3.用作形式主语，真实的主语常为不定式（短语）、动词-ing形式（短语）或名词性从句。

如：It’s impossibleforustogetthereintime.It’salwayssadsayinggoodbyetosomeoneyoulove.It’sstrangethatshenevermentionedthewedding.4.用作形式宾语，真实的宾语常为不定式（短语）、动词-ing形式（短语）或名词性从句。

如：Manypeoplefindithardtostopsmoking.Shefindsitboringstaying/tostayathome.Ifinditstrangethatshedoesn ’twanttotravel.【辨析】it,one和that1.it指物时，是明确指上文提到的那个事物。

it能够取代单数可数名词、不行数名词及前方提到的事情或状况。

第三部分：语法---It的用法【学习目标】知识目标：学习代词it的各种用法。

能力目标：能熟练运用到各种场合，能够解答与之相关的习题，学会使用it有关的高级句型尤其是强调句型、it作形式主语。

【课前自学】代词的用法：一、作人称代词1、it代替前面（或后面）的单数名词或分句等所表示的事物。

e.g. You cannot eat your cake but have it.（it代替前面的_________）Although we cannot see it, there is air all around us. （it代替后面的_________）They say he has left town, but I don’t believe it.（it代替前面_________）2、代替有生命但不能或不必分阴阳性的东西（包括婴儿）。

e.g. Yesterday we saw a big tree. It was fully twenty metres high. （it代替前面的_______）The baby cried because it was hungry. （it代替前面的_________）3、在某些习惯说法中，可以代替人。

e.g. ---- Someone is knocking at the door, Peter.---- Who is _________? ---- _________ me.---- Who are singing? ---- It is the children.---- The light is still on in the lab. It must be the third-year students doing the experiment.4、it与one的区别：这两个词都可以代表前面说过的名词，但it用于同名同物的场合；one则用于同名异物的场合。

Book6 Unit3 A healthy life语法：it 用法一、代词1.人称代词it 用来指代上文所提到的事物，或代替整个句子或该句中谓语部分所表示的意思:①---What do you think of the movie? ---It’s one of the best movies that I’ve seen.②You saved my life; I’ll never forget it.③Tom’s mother kept telling him that he should work harder, but it didn’t help.2.指代婴儿或儿童;在不清楚某人性别时,也可使用it,尤其在问答的形式中更为常见.例如:①---Who’s the lovely baby? ---It’s Mr. Black’s.②---Look, someone is coming. Who can it be? ---It may be the headmaster.1)I was cooking in the kitchen when someone knocked at the door. ___ was my close friend, Lisa. 3.还可以替代指示代词this 或that. ---What is that? ---It is his dictionary.2)This is the first time that I have come here, ____ ?(反义疑问句)4.用来表示时间, 天气, 气候, 距离, 温度, 环境, 季节, 价钱, 状况，次数等。

①It's awful—I've got so much work I don't know where to start.（笼统状况）②How is it going?③It was very noisy outside now.(表示环境)3)was a sunny day. Now__ was eight o’clock. They decided to go for a walk to the park, though __ _was two miles away. ___ was so comfortable to walk on the street _____ was quiet there. Suddenly ___ began to rain. They found __ hard to go home. When they got home, they were wet through. Thus ___ was a day that they would never forget.4)从这到我们家大约半小时的车程。

人教版高中选修六第三单元语法it的用法(1)人教版高中英语选修六的语法武汉市新洲区新洲二中英语组张元利人教版高中英语选修六的语法It’s 10:08 It weighs only 3 kilosIt’s lovely It’s a large sum of money人教版高中英语选修六的语法It was a sunny day. Jack wanted to make an ____ appointment with Rose. They decided to go for a it was two miles walk to the park, though _____ It was comfortable to walk on the street. away. ___人教版高中英语选修六的语法it it Suddenly ___began to rain. They found __ hard to walk there. Then they took a bus home. Unfortunately ___ it went wrong. When they got home, they were wet through. Thus ___ it was a day that they would never forget. 人教版高中英语选修六的语法学习纲要The Usage 形式主语 of 形式宾语“it” 固定用法基本用法三个句型常见用法特殊用法三个句型人教版高中英语选修六的语法1.基本用法:1.it作人称代词1.1.it的最基本用法是作人称代词，主要指刚提到的事物，以避免重复: 1.2.也可以指动物或婴儿(未知性别的婴儿或孩子): 1.3.也可指抽象事物:人教版高中英语选修六的语法1.基本用法:2.非人称代词it2.1.指天气：2.2.指时间:2.3.指环境:3.作指示代词:可用来代替this ,that.BACK人教版高中英语选修六的语法学习大纲that 从句——虚拟语气… possible It is / was + adj. necessar y + ( for sb. ) to do sth. / clause 逻辑主语的特性important (of sb.) … … that 从句——虚拟语气 one’s duty It +is /was + n. a pity + ( for sb. ) to do sth. / that an honour … … said/reported/noticed It is / was p.p + that-clause suggested/ordered that 从句——虚拟语气…2. it 用作形式主语人教版高中英语选修六的语法2. it 用作形式主语2.1 作形式主语替代不定式1). It takes sb. ... to do sth. ;做...要花费某人..;2). It is kind ( of sb. ) to do sth.3). It is necessary ( for sb. ) to do sth4).It +is /was + a pity ( for sb. ) to do sth.人教版高中英语选修六的语法2. it 用作形式主语2.2.作形式主语替代ing形式It is no good (use ) doing sth. 该句型中的真正主语是动名词短语，主句中的表语可以是no good,( not any good ),no use,( not any use ),no fun, useless,a waste of time d+doing sth.It is no good learning English without speaking English.人教版高中英语选修六的语法2. it 用作形式主语2.3 代替主语从句 1)It is + adj. +that从句① It is clear ( obvio us,true,possible,certain....) that .....“清楚(显然，真的，肯定...)” ②. It is important ( necessary,right,strange,natural...) that ...人教版高中英语选修六的语法2. it 用作形式主语2)It is +v-ed +that 从句① It is said (reported, learned....) that ... 据说(据报道，据悉...)“。

Section_ⅢGrammar—it的用法(1)语法图解探究发现①It is a beautiful day here and I am sitting under the big tree at the end of the garden.②Your mother tells me that you started smoking some time ago and now you are finding it difficult to give it up.③It is never too late to mend.④It is no use talking to them.⑤It is said that he stole the money.⑥I think it difficult to learn English well.⑦We make it clear that speaking to the teacher in that way is not polite.⑧I don't like it when people talk with the mouth full of food.[我的发现](1)①句it表示天气，②句第一个it代替to_give_it_up作形式宾语；第二个it代替句中所说的“吸烟”的事。

(2)在句③④⑤中it用作形式主语，其中句③用在“It is＋形容词＋(for/of＋sb.)＋动词不定式(短语)”中，it指代动词不定式(短语)；句④用在“It is＋no use/good＋动名词(短语)”中，it指代动名词(短语)；句⑤用在“It is＋said/believed/reported＋that从句”中，it指代that 从句。

(3)在句⑥⑦⑧中it用作形式宾语，其中句⑥用在“动词＋it＋形容词＋动词不定式(短语)”中，it指代动词不定式(短语)，句⑦用在“动词＋it＋形容词＋that从句”中，指代that 从句；句⑧it用在某些特殊的句式中，指代when从句。