it用法大全(形式宾语形式主语)讲解学习
it+形式主语、形式宾语+课件-2025届高三英语上学期一轮复习专项
2. 用法： ③It 代替从句
A. It be + n.短语+that...
Legend has it that...
谣传…… 传说……
Rumour has it that Kim is not his student.
据说金不是他的学生。
Legend has it that Wu Song is buried at Hangzhou.
传说武松葬在杭州。
2. 用法： ① 动词+it+宾语补足语+不定式/动名词/从句
think, believe, make, find, consider, feel, take, support, regard...
The meeting is to make it clear how the project should go on.
He hates it when people use his bike.
他讨厌别人用他的自行车。
I enjoy it that everyone had a good time.
每个人都玩得高兴我很开心。
2. 用法：
③ 动词+介词构成的固定词组，如果介词后跟宾语从句，
必须用： 动词+it+介词+名词+从句
it 做形式主语
empty subject
That a single man in possession of a good fortune must be in
英语语法it形式主语和形式宾语ppt课件
1 it 代替不定式（短语） 当不定式（短语）在复合宾语结构中作某些动词（如think, make, find,
consider, feel, suppose等）的宾语时。
I find it pleasant to work with him. They felt it my honor to be invited to speak here.
It
6.(改错)That felt funny watching myself on TV.
It
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Summary
it
①It is+adj for/of sb+to do sth
作 代替不定式 ②It is+n+to do sth
为
③It takes/took sb+sth+to do sth
形
代替动名词 It is+no use/good/useless/pleasure/a wa
3
？ It is frightening to go climbing with him. to go climbing with him 是真正的主语
To go climbing with him is frightening.
通常it作为形式主语，在句中没有实 际意义，只是满足语法需要，起到 一个平衡句子结构，避免句子头重 脚轻的作用。
11
• ⑥ It + takes + (sb.) + some time + to do sth. •这是一个表示“（某人）花多少时间干某事”的 句型，其中it是形式主语，代替后面的不定式 （to do sth.），句型中的sb.也可以省略。
it用法大全形式宾语形式主语
2.非人称代词it
it有时并不指详细旳东西，而泛指天气、时间、环境等， 称为非人称旳it： 2.1.指天气： It is a lovely day, isn’t it? It is a bit windy.
2.2.指时间: It was nearly midnight when she came back.
用It作形式主语旳句型： (1) It is adj.＋ to do sth. It is difficult to translate this article.翻译这篇文章 极难。
(2) It is adj. ＋ for/of sb.＋ to do sth. It is important for us to learn English.学习英语对我 们很主要。
㈠ 1.it作人称代词
1.1.it旳最基本使用方法是作人称代词，主要指刚 提到 旳事物，以防止反复:
Ningbo is a beautiful city, isn’t it?
1.2.也能够指动物或婴儿(未知性别旳婴儿或孩子): Is this your dog？No, it isn’t.
1.3.也可指抽象事物: It was a great surprise to me when he did a thing like that．
2）.It is +v-ed +that 从句 ① It is said (reported， learned....) that ...
据说（据报道，据悉．．．）“。 It is said that he has come to Beijing.
= He is said to have come to Beijing.
②不论被强调部分是哪种状语，只能用 that连接，不得使用where、when等连词.
it作为代词的用法总结
it作为代词的用法总结一、it 作为人称代词1. 表示特指的人或物：当我们想要提及已经被提到过的人或物时，可以使用 it 来代替。
例如：I saw a bird in the garden this morning. It was singing beautifully.2. 表示不具体指向的事物：当我们谈论天气、时间等与特定对象无关的概念时，可以使用 it。
例如：It is raining outside.What time is it?3. 用于强调句子中的主语或宾语：在强调句型中，it 可以用来指代原本句子中的名词，并将其放在句首。
例如：It was John who ate all the cake.It was the cat that knocked over the vase.二、it 作为形式主语或形式宾语1. 当真正的主语或宾语是一个从句时，我们通常使用 it 作为形式主语或形式宾语。
例如：It is important to exercise regularly.I find it difficult to understand his accent.2. 当强调整个动作而不是特定执行者时，也可使用 it 作为形式宾语。
例如：I find it interesting to learn new languages.She found it hard to say goodbye.三、it 作为虚主语1. 在一些较长的句子中，如果没有一个具体的主语和动词，我们可以使用 it 占据主语的位置，以保持句子的语法结构平衡。
例如：It is important to study before the exam.It seems that nobody is home.2. 在许多固定短语中，it 作为一个虚拟主语引入一个句子。
例如：It is said that he will be promoted soon.It doesn't matter if we arrive late.四、it 作为指代前文提到的内容1. 当我们在上下文中已经谈论过某个事物，并且想要通过代词回指时，可以使用 it。
“It”作形式主语和形式宾语的用法详解
it作形式主语和形式宾语it既可作人称代词，用来表示动物或无生命的物体等，也可以作无人称代词，在句中作主语，表示“时间”、“距离”、“天气”等。
它还可以引导强调句，使语气得以加强。
此外，it在句中能作引导词，充当句子中的形式上的成分，如形式主语、形式宾语等。
㈠it作形式主语：it作形式主语时没有具体的意义，而只是帮助把真正的主语移到句子后部去，使句子显得平稳一些。
it作形式主语时，可以代替三种形式：不定式、动名词和主语从句。
1. it代替不定式短语常用于下列句型中：It + be +形容词+ (for/of sb.) to do sth.It + be + 名词+ to do sth.It takes sb. some time to do sth. 干…花了某人…时间It’s up to sb. to do sth. 干…是某人的职责或义务如：①It is everyone’s duty to obey the law.遵守法律是每个人的义务。
（it作形式主语, 代替不定式短语to obey the law）②It is difficult for a foreigner to learn Chinese.对于一个外国人来说，学习汉语是困难的。
（it作形式主语, 代替不定式短语to learn Chinese）③It is not right to use these places as rubbish dumps.把这些地方用来倒垃圾是不对的。
（it作形式主语, 代替不定式短语to use these places as rubbish dumps）④It took them a year to build the bridge.建这座桥花了他们一年的时间。
（it作形式主语, 代替不定式短语to build the bridge）⑤It is bad manners to stare at people.瞪着眼睛看人是不礼貌的。
it作形式主语或形式宾语的用法
it作形式主语或形式宾语的用法1. it用作形式主语当不定式、动名词、从句等用作主语时，为避免头重脚轻，通常在句首使用形式主语it，而把真正的主语放在句子末尾。
如：It’s a pity to refuse. 拒绝是令人遗憾的。
It’s no use saying any more about it.再谈这事没有用。
It’s not known where she went.她到哪里去了没人知道。
注：It is said / reported / believed / understood that…这类结构中的 it 也是形式主语。
如：It’s reported that two people were injured in the accident. 据报导这次事故中有两人受伤。
2. it用作形式宾语当不定式、动名词、从句等用作宾语且其后跟有宾语补足语时，就应在宾语补足语前使用形式宾语，而将真正的宾语移至句末。
如：I find it easy to get on with her. 我发现她很容易相处。
I think it best that you should stay here. 我认为你最好住这儿。
They haven’t made it known where they are to hold the conference. 他们还没宣布会议在哪里开。
几种特殊的形式宾语it1. enjoy, like, dislike, love, hate, prefer, appreciate等动词后接 if 从句或 when 从句，通常应先在动词后接 it 作形式宾语。
如：She won’t like it if you arrive late. 她不喜欢你迟到。
He hates it when people use his bike. 他讨厌别人用他的自行车。
I hate it if you say such things in public. 我讨厌你在大庭广众之下说那样的事。
it考点讲义：it用作形式主语和形式宾语的用法归纳总结- 高考英语语法二轮复习专题.docx
高中英语语法高考二轮复习it考点讲义【精讲版】it用作形式主语和形式宾语的用法归纳总结一、用作形式主语当不定式、动名词、从句等用作主语时，避免头重脚轻，通常在句首使用形式主语厄而把真正的主语放在句子末尾。
如：It is stupid to do such a thing.做这种事真蠢。
It's no good sitting up too late.熬夜没有好处。
It is necessary that he should be sent there at once.有必要马上派他到那里去。
注：类似以下句子中的il也可视为形式主语：It happened that the harvest was bad in 1988.碰巧1988 年的收成很不好。
It seems that she is afraid to tell them about it.似乎她怕将此事告诉他们。
二、用作形式宾语当不定式、动名词、从句等用作宾语且其后跟有宾语补足语时，就应在宾语补足语前使用形式宾语，而将真正的宾语移至句末。
如：I've made it a rule never to hurry,我已养成凡事从容不迫的习惯。
Do you think it possible to root out crime?你认为可以根除犯罪吗？He found il difficult to breathe at high altitudes.他觉得在高空呼吸困难。
注：通常意义的形式宾语主要见于真正宾语为不定式、动名词、从句等且其后跟有宾语补足语时的情形，即用于“动词+it+宾语补足语+真正的宾语”这样的结构，但以下两类形式宾语却比较特殊，其后没有宾语补足语:1.由于介词后通常不能直接跟that从句作宾语，有个别特殊结构就在介词后先接it作形式宾语，再跟that从句。
如：You may depend on it that it is true.你可以相信这是真的。
“It”作形式主语和形式宾语的用法详解
新希望英语语法精讲------“It”作形式主语和形式宾语“It”作形式主语和形式宾语的用法详解It作形式主语和形式宾语用法，是英语学习的主要语法项目之一。
无论是单项选择，还是完行填空，it 用法始终是反复考查的重、热点之一。
现将it在特殊句型中作形式主语和形式宾语用法，进行如下归纳分析，以供学习参考。
一、It 用作形式主语当不定式（短语）、动名词（短语）或从句在某个句子中作主语时，为保持句子结构前后平衡，避免头重脚轻，因此常用it作形式主语置于句首，而将真正的主语放在句尾。
此时it只起先行引导作用，本身无词义。
e.g. It is wrong to tell a lie. (说谎是错误的。
) 〔It为to tell a lie的形式主语〕It is no use arguing about it. (争吵是没用的。
) 〔It为arguing about it的形式主语〕It is uncertain who will come. (谁要来还不确定。
) 〔It为who will come的形式主语〕It 作形式主语的常见句型：①It + be + 形容词+ to do sth. / doing / that ….e.g. It is very important to learn a foreign language. (学一门外语非常重要。
)It is useless crying over the spilt milk. (覆水难收。
)It was really surprising that she married a man like that.(她嫁给那样的男士真让人惊讶。
)②It + be +名词词组+ doing / that ….e.g. It is no good telling lies. (撒谎没好处。
)It is a pity that you didn’t go to see the film yesterday. (你昨天没看成那部电影真遗憾。
“It”用法及其句型和固定搭配讲解
“It”用法及其句型和固定搭配讲解“It”用法及其句型和固定搭配，是高中英语语法的重点、难点，又是近几年高考的热点，因此应给予充分的重视，现将it用法归纳如下:一、It用作实词表达以下概念：指代前文提到的事物，前文中的this，that；替代前文中的内容；指代一位性别不明的小孩或未知的人；指代未指明但谈话双方都知道的那件事；指代时间、天气、气候、距离等自然现象……二、It用作形式主语替代作主语的从句、动词不定式、动名词,而把真正作主语的从句、动词不定式、动名词置于句尾.It 作形式主语的常见句型：1。
代作主语的动词不定式，其句型为（1)It be adj。
（for sb.)to do sth.此处adj。
通常为描述事件的形容词:easy，difficult，hard,necessary，unnecessary，possible，impossible，likely，unlikely，right,wrong，important,unimportant，legal，illegal，well—mannered,ill-mannered,polite，impolite,clear，obvious，certain，suitable，proper，fit，useful,useless，dangerous…例It is illegal（for a teenager)to drive a car without a license.(2）It be adj. of sb。
to do sth.此处adj. 通常为描述人的形容词：kind，unkind，nice，rude，cruel，considerate,thoughtful,thoughtless,careful，careless，silly，foolish,stupid，clever,wise，crazy。
例It’s kind of you to help me with the problem.（3）It替代作主语的动名词的常见句型It’s no good/use doing…It's（well）worth doing…It's（well）worth one’s while doing/to do…It’s（well)worth while doing/ to do例It's no use crying over spilt milk.2。
高考中 it作形式主语和形式宾语用法大汇总
it作形式主语和形式宾语用法It作形式主语和形式宾语用法，是中学阶段英语学习的主要语法项目之一。
纵观历届高考题，无论是单项选择，还是完行填空，it用法始终是反复考查的重、热点之一。
现将it作形式主语和形式宾语用法，进行如下归纳分析，以供学习参考。
一、It 用作形式主语当不定式（短语）、动名词（短语）或从句在某个句子中作主语时，为保持句子结构前后平衡，避免头重脚轻，因此常用it作形式主语置于句首，而将真正的主语放在句尾。
此时it只起先行引导作用，本身无词义。
e.g. It is wrong to tell a lie.(说谎是错误的。
) 〔It为to tell a lie的形式主语〕It is no use arguing about it.(争吵是没用的。
) 〔It为arguing about it的形式主语〕It is uncertain who will come.(谁要来还不确定。
) 〔It为who will come的形式主语〕It 作形式主语的常见句型（必背）：①It + be + 形容词+（for sb）+ to do sth. / doing / that …. e.g. It is very important to learn a foreign language.(学一门外语非常重要。
)It is useless crying over the spilt milk.(覆水难收。
)It was really surprising that she married a man like that.(她嫁给那样的男士真让人惊讶。
)比较：①It + be + 形容词+of sb+ to do sth. / doing / that ….It is brave of him to save the girl in danger without hesitation.(他毫不犹豫地去救那个处于危险中的女孩真是太勇敢了.)②It + be +名词词组+ doing / that ….e.g. It is no good telling lies.(撒谎没好处。
英语中it用法全解析
英语中it用法全解析摘要本文主要介绍了英语中it的用法，包括以下几个方面：it作为人称代词，指代前文提到的或语境中明确的人或物。
it作为非人称代词，表示天气、时间、温度、距离等抽象概念。
it作为形式主语或形式宾语，代替不定式、动名词或从句等真正的主语或宾语。
it用于强调句型，突出句子中的某一成分。
it用于其他常见的句式和短语，表达不同的意思和功能。
1. it作为人称代词it作为人称代词，通常指代前文提到的或语境中明确的人或物。
它在句中可以作主语、宾语、定语或表语等。
例如：句子说明He took a quick look at the house and noticed it was veryold.it指代前文提到的house，作主语。
John hates children, and it is difficult to say why.it指代前面提到的事情，作主语。
She made it clear (that) we were not welcome.it作形式宾语，真正的宾语是that引导的从句。
It's me.it作形式主语，真正的主语是me。
2. it作为非人称代词it作为非人称代词，表示天气、时间、温度、距离等抽象概念。
它在句中通常作主语或宾语。
例如：句子说明It is raining.it表示天气，作主语。
It is an hour's walk from my home to the school.it表示距离，作主语。
It is a pity that I didn't think of it earlier.it表示一般情况，作主语。
I don't like it when you are angry.it指代后面的when引导的从句，作宾语。
3. it作为形式主语或形式宾语当不定式、动名词或从句等用作主语或宾语时，为避免头重脚轻或保持句子平衡，通常在句首使用形式主语或形式宾语it，而把真正的主语或宾语置于句尾。
“It”作形式主语和宾语
“It”作形式主语和宾语it作形式主语和宾语A形式主语⑴It’s +adj. +for/of +sb. to do sth.It’s very kind of youIt’s important for you to learn English well.⑵It’s time for sb.to do sth.It’s time for you to sing⑶It seems that .....It seems that you are right.⑷It’s one’s turn /job/duty to do sth.It’s your turn/job/duty to clean the desk.⑸It’s +adj. that 从句It’snecessary/certain/natural that he wiil win.⑹It’s no use /good doing sth.做某事没有用处/好处。
It’s no use /good eating too much⑺It’s +一段时间since +一般过去时态从句或It has been +some time +since +一般过去时态从句It’s(been) five years since we saw last .⑻It’s a pity that ......It’s a pity that only six pieces of music in total were recorded for the future world to hear.⑼It is said that/It is consider that/It is believed that ......It is said that he became a famous pianist.B形式宾语动词(feel，think，make,believe,consider,suppose 等)+it +adj./n.+ to do sth.I think it necessary to learn English well.。
专题五：It作形式主语和形式宾语的用法
专题五：It作形式主语和形式宾语的用法一、It用作形式主语当从句、不定式、动名词等用作主语时，为避免头重脚轻，通常在句首使用形式主语it，而把真正的主语放在句子末尾。
1. 指代主语从句。
It is possible that he has stolen the car. 很可能他偷了小车。
It is strange that he should not have passed the test. 他测试没有通过真奇怪。
It is uncertain whether/if he will leave for Beijing tomorrow. 明天他是否去北京还不敢肯定。
2. 指代不定式（短语）作主语。
It is a pity to refuse. 拒绝是令人遗憾的。
It was his duty to attend to the matter. 处理这件事是他的责任。
It is impossible to finish the work on time. 准时完成工作是不可能的。
3. 指代动名词。
It is no good staying up too late. 熬夜是没有好处的。
It is no use saying anything more about it. 再说这件事没用。
It is useless crying over the spilt milk. 覆水难收。
It is a waste of time arguing with him. 与他争论简直是浪费时间。
It is a pleasure talking with you. 与你交谈真是件快乐的事情。
4. It用作形式主语的常用句型。
①It+is/was+形容词+to do sth./that…常见的形容词有known, clear, necessary, likely, unlikely, right, wrong, important, certain, obvious, strange, natural, kind, nice等。
it用法大全(形式宾语形式主语)
3）.It +n+that ... 1. It is a pity ( a shame ... ) that ...
that后的从句一般用虚拟语气（should + 动词原形）， should可省去．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。
It doesn’t matter if they are old.
.2.作形式主语替代不定式
1). It takes sb. ... to do sth. ＂做．．．要花费某人．．＂ It took thousands of people many years to build the Great Wall.
2.非人称代词it
it有时并不指具体的东西，而泛指天气、时间、环境等， 称为非人称的it： 2.1.指天气： It is a lovely day, isn’t it? It is a bit windy.
2.2.指时间: It was nearly midnight when she came back.
2）.It is +v-ed +that 从句 ① It is said (reported， learned....) that ...
据说（据报道，据悉．．．）“。 It is said that he has come to Beijing.
= He is said to have come to Beijing.
难怪他不愿去。 在该句型中如果用肯定形式，表示“真奇怪， 真是令人惊讶”；
It is a wonder that he reused such a good offer.
it做形主和形宾的句型
“it” 作为形式主语（形主）和形式宾语（形宾）的句型在英语中是非常常见的。
以下是具体的句型：
1. 形式主语（形主）：
**主语从句句型：** It + be + 形容词/名词 + (for sb.) + to do sth.
例如：It is difficult for me to learn French. （对我来说，学习法语很难。
）
在这个句子中，“it” 没有实际的意义，只是作为句子的形式主语，真正的主语是后面的不定式短语“to learn French”。
2. 形式宾语（形宾）：
**动词+ it + 宾语补足语 + 真正的宾语**
例如：I found it hard to get along with others. （我发现和别人相处很难。
）
在这个句子中，“it” 作为形式宾语，真正的宾语是后面的不定式短语“to get along with others”。
以上信息仅供参考，如果还有疑问，建议查阅英语语法书籍或询问英语老师。
英语it的用法
英语it的用法摘要本文主要介绍了英语中it的五种常见用法，分别是：作为代词，指代前面提到过的人或事物作为形式主语，代替由不定式、动名词或从句所表示的真正主语作为形式宾语，代替由不定式、动名词或从句所表示的真正宾语作为虚拟主语，没有实际意义，只是在句中起到填补主语位置的作用用于构成强调句型，强调句子中的某一部分本文通过举例和对比，解释了每种用法的特点和规则，并给出了一些注意事项和练习题。
希望本文能够帮助你掌握英语it的用法，并提高你的英语水平。
一、it作为代词it作为代词，可以指代前面提到过的人或事物，或者语境中明确的人或事物。
它通常用来指非生命的东西，如物体、动物、植物、天气、时间等。
它有主格和宾格两种形式，都是it。
例如：I like this book. It is very interesting.（我喜欢这本书。
它很有趣。
）Look at that cat. It is so cute.（看那只猫。
它太可爱了。
）It is raining outside.（外面下雨了。
）It is nine o'clock now.（现在九点了。
）有时候，it也可以指代一个人，特别是当这个人的性别不确定或不重要时。
例如：Who is it? It is me.（是谁？是我。
）Someone called you, but it was a wrong number.（有人给你打电话了，但是打错了号码。
）二、it作为形式主语在英语中，有些句子的真正主语是由不定式、动名词或从句所表示的，例如：To learn English well is important.（学好英语很重要。
）Swimming is good for your health.（游泳对你的健康有好处。
）That he is honest is obvious.（他很诚实是显而易见的。
）这些句子虽然正确，但是看起来很笨拙，因为主语太长，而且不容易区分出谓语和补语。
英语中it的用法
it 在英语中的意思较多,用法较广,现总结如下;一、it作句子的真正主语1．it 指前面已经提到过的人或事物,有时指心目中的或成为问题的人或事物,作真正主语;例如：What’s this －It is a sheep这是什么这是一只绵羊;Who is it －It’s me I. 谁是我;It’s the wind shaking the window. 是风刮得窗户响;2．it指时间、季节;一般用在无人称动词的主语;例如：What time is it －It’s nine. 几点了九点了;It’s time for the meeting. Let’s go. 开会的时间到了,我们走吧;What day is today －It’s Saturday. 今天星期几今天星期六;What’s the date today －It is October 1st.今天是几号今天是十月一日;What season is it －It is summer. 现在是什么季节是夏季;3．it 指气候;一般作无人称动词的主语;例如：Is it cold in this room －No, it isn’t. 屋里冷吗不冷;What’s the weather like today －It is fine.今天天气怎么样是晴天;It often rains in summer and it often snows in winter in this city.这个城市夏天经常下雨,冬天经常下雪;4．it指距离、情况等;一般用作无人称动词的主语;例如：It is five kilometers from my home to the school.从我家到学校有五公里;It is very near from this factory to that one.从这个工厂到那个工厂非常近;It is a long way to the sea. 离海很远;Is it well with you 你身体好吗二、it作形式主语动词不定式、动名词短语起、从句在句子中起主语作用,而这一部分用词较多时,可以用it作为形式主语,放在句首代表其后所说的事实上的、真正的主语,而把真正的主语放在后面;1．It +谓语＋动词不定式;It 作形式主语,动词不定式作真正的主语;例如：It is difficult to climb a mountain. 爬山是很艰难的;It’s a good habit to do morning exercises. 作早操是个好习惯;It’s important to do proper memory work in the study of a foreign language. 在学习外语时适当地做一些有助于记忆的练习是很重要的;It is right to do so. 这样做是对的;2．It＋谓语＋动名词短语;It 作形式主语,动名词短语作真正的主语;例如：It is dangerous playing with fire. 玩火是危险的;It is no use learning without thinking. 学而不思则罔;It’s useless arguing with a silly boy. 和笨孩子争论是没有用的;3．It ＋谓语＋名词性从句;It 作形式主语,以that 引导的名词性从句是真正的主语;例如：It is a pity that you didn’t see such a good film.你没看这么好的电影,真可惜;It is certain that we shall succeed. 我们一定会成功;It is strange that nobody knows where he lives.真奇怪,谁也不知道他住在哪里;It is strange that…后面可用虚拟语气;如：It is strange that he should have made such a mistake.他居然犯了这样一个错误,真奇怪;It is strange that nobody should know where he lives.居然没有人知道他住在哪里,真奇怪;It is said that the plane will take off at ten tomorrow morning.据说飞机明天上午十点起飞;三、it作形式宾语it 作形式宾语,代表其后所说的真正的宾语;真正的宾语是以that 引导的名词性从句或不定式短语;例如：I consider it wrong that you Chinese students learn English without comparing it with your own language.我认为你们中国学生学习英语,不和你们自己的语言比较是不对的;I find it not so difficult to learn a foreign language.我发现学习一门外语不那么困难;I remember I made it clear to you that I was not coming.我记得向你明确表示过我不来;They want to make it clear to the public that they are doing an important and necessary job.他们要向公众表明,他们在做一件重要而又必要的工作;四、it 用于强调结构在表示强调的结构中,it 可用作先行代词,这种结构的句型如下：It +is/was +被强调的部分＋that +其他部分;如果强调的部分是人,可用who, whom 代替that.例如：Professor Wang teaches us English every Monday afternoon.王教授每星期一下午教我们英语;强调主语：It is Professor Wang who teaches us English every Monday afternoon.强调间接宾语：It is us whom Prof. Wang teaches English every Monday afternoon. 强调直接宾语：It is English that Prof. Wang teaches us every Monday afternoon.强调状语：It is every Monday afternoon that Prof. Wang teaches us English.It was here that I first met him. 这就是我初次与他见面的地方;强调状语It is the people who are realy powerful.翻译练习1该上课了,快;It is time for class. Hurry up.2从这儿到你们学校远吗不远,大约一公里;Is it far from here to your school No, it isn’t. It’s about a kilometer.3从我家到颐和园去很近;It is very near from my home to the Summer Palace.4天正在下雨;It’s raining now.5电灯是爱迪生发明的;It was Edison who invented the electric light.6我认为学习一门外语是很重要的;I think it important to learn a foreign language.7他通常一天读两次英语;He made it a rule to read English twice a day.8从我家去天安门广场坐公共汽车大约要一个小时;It takes about an hour to go from my home to the Tian’anmen Square by bus.反意疑问句反意疑问句相当于“对不对”“好不好”“行不行”,用yes或 no 回答;由两部分组成,前一部分是陈述句,后一部分是附加疑问短语,中间用逗号隔开,所以反意疑问句又叫附加疑问句;通常的形式是：肯定的陈述句＋否定的附加疑问,或否定的陈述句＋肯定的附加疑问;如：He studies English, doesn’t heHe doesn’t study English, does heThey are from America, aren’t theyThey are not from America, are they反意疑问句的主要形式：1．如果主句是be或其他助动词如can, shall, will 等,其反意疑问句用同一助动词; 如：We are late, aren’t weYou haven’t met my wife, have youHe can drive a car, can’t heThey used to have difficulty in just making ends meet, didn’t usedn’t theyYou’d better eat with knives and forks, hadn’t you2．如果主语带有seldom, hardly, never, rarely, few, little等否定词或半否定词时,因为主句本身具有否定意义,附加疑问部分的动词用肯定式,如：We seldom go to the cinema, do weSue almost never worked, did she3．如果主句部分是“I am…”结构,由于”am not” 没有相应的缩略形式,附加疑问部分一般用aren’t I 代替;如：I am your friend, aren’t II’m late, aren’t II am a student, aren’t I在祈使句中的附加疑问部分一般用will you, won’t you.4. 在祈使句中的附加疑问部分一般用will you, won’t you.如：Sit down, will youHave some tea, won’t youOpen the window, won’t you这种句子可以理解为: Will you do something如:Will you open the window注意：否定的祈使句之后,只能用will.Don’t forget, will youDon’t make so much noise, will you5．以Let’s… 开头的祈使句,肯定的用shall we否定的用all right或OK,如：Let’s go back to our seats, shall weLet’s not have hot food this t ime, OK all right这种句子可以理解为：Shall we do something,如:Shall we go back to our seats.这样有助于理解和记忆;注意：Let’s 与Let us 的区别：Let’s包括听话人在内,应用shall we, 而Let us 不包括听话人在内,表示“请你让我们…”,要用will you.如：Let’s watch the news on TV, shall we 表示建议Let us watch the news on TV, will you 表示请求6．主句是I suppose, I think, I believe等时,附加疑问部分则往往与that 从句中的主语和谓语动词保持对应关系,但要注意否定的转移;如：I suppose that you know the meaning of the word, don’t you这句话明显是要问“你是不是知道”而不是问“我是不是这样认为”I don’t think that you have read the book, have you7．当主句的动词have 表示“拥有”时,附加疑问既可用have, 也可用do,如：You have a color TV set, haven’t you/don’t you当主句的have不表示“拥有”而表示其他意思时,附加疑问要用do,如：You had a cold yesterday, didn’t youThey don’t have coffee with breakfast, do theybe句型的反意疑问句,用there 作主语;如：There is something wrong, isn’t thereThere won’t be any trouble, will there 不会有任何麻烦,是吗9.陈述部分的主语是everyone, someone, anyone, no one, nobody等不定代词时,其疑问部分的主语可用he, 也可用they.Everyone knows it, doesn’t he/don’t they英语反意疑问句的回答有点和汉语的相反;但一定要记住：只要回答是肯定的,都用yes,只要回答是否定的,都用no;这在主句是否定句的时候要特别注意;例如：Mr. Jones can’t speak French, can he No, he can’t.琼斯先生不会讲法语,对吗对,他不会讲法语;Mr. Jones can’t speak French, can he Yes, he can.琼斯先生不会讲法语,对吗不,他会讲法语;This is not a door, is it －Yes, it is. It is an iron door.这不是门,对吗不,这是门;是扇铁门;。
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It happened ( so happened ) that he met his teacher in the street. 碰巧．．.
It seems that he will be back in a few days. 看 来．．It l．ooks as if he is ill.（真的病了）
2）.It is +v-ed +that 从句 ① It is said (reported， learned....) that ...
据说（据报道，据悉．．．）“。 It is said that he has come to Beijing.
= He is said to have come to Beijing.
2). It is kind ( of sb. ) to do sth. 主句中的形容词必须是能表示逻辑主语特征的形容词。 常见的有： bad ， brave ， careless， clever ， cruel ， foolish ，stupid ， wise wrong等。 这个句型可以改写为：sb. is kind to do sth. 。 It is kind of you to say so. = You are kind to say so.
②不管被强调部分是哪种状语，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．
③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.非人称代词it
it有时并不指具体的东西，而泛指天气、时间、环境等， 称为非人称的it： 2.1.指天气： It is a lovely day, isn’t it? It is a bit windy.
2.2.指时间: It was nearly midnight when she came back.
用过去时态表示虚拟．常译为“是（正是）．．．的时 侯．．．” / should+原型
It is time that children went to bed. It is high time that the children should go to school.
3. It is the first ( second ... ) time that ... “是第一（二）．．．次．．．”。 该句型中的 that 从句用完成时态。如果主句动词be是一般现 在时，后面从句用现在完成时态；如果主句动词be是一般过 去时，后面从句则用过去完成时态。该结构中 that 可以省去。 例如： It was the first time that I had been praised.
难怪他不愿去。 在该句型中如果用肯定形式，表示“真奇怪， 真是令人惊讶”；
It is a wonder that he reused such a good offer.
真奇怪，他拒绝了这样好的帮助。
4). It+v+that从句 It happens (seems， looks， appears ) that...
A. it, it
B. what, what
C. it, what
D. what, it
㈡.引导词it 1. It is + 被强调部分 + that ...
使用该句型有以下几点请注意： ① 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．
2.3.指环境: It was very quiet in the café.
2.4.指距离： It is half an hour’s walk to the city centre.
㈠ 1.it作人称代词
Everyone knows that _______ is dangerous to play with fire, but _______ is difficult is to prevent children from playing with fire.
3). It is necessary ( for sb. ) to do sth. 常见的形容词有：① important， necessary， natural ② easy ， safe ，common ，normal ，hard ， difficult ,dangerous ， 等。 在①中的形容词作表语可以用从句改写， 如： It is important for her to come to the party. = It is important that she (should ) come to the party.
It is no good learning English without writing English.
It's useless trying to argue with Shylock.
4). It is/was not until....that... It was not until his mother came back that he turned off the TV.
It looks as if he were ill. （没有生病）
It seemed as if he were dying.
It doesn’t matter whether ( if ) ...
该句型中whether(if) 引导的从句是真正主语， 该句型常译为＂不论（是否）．．．没关 系．．．。
. it 用作形式主语
.1 it代替主语从句
1）It is + adj. +that从句
① It is clear ( obvious， true， possible certain....) that ..... “清楚（显然，真的，肯定．．．）”
It is very clear that he’s round and tall like a tree.
②. It is important ( necessary， right， strange， natural...) that ... that 后的从句中要用虚拟语气（should + 动词原形）， should 可以省去，建议记住该句型中的形容词。 It is important that we (should) learn English well.
5) It is one’s turn to do sth.
It is your turn to clean our classroom today.
今天该轮到你做教室清洁。
.3.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 , no use ,useless
It doesn’t matter if they are old.
.2.作形式主语替代不定式
1). It takes sb. ... to do sth. ＂做．．．要花费某人．．＂ It took thousands of people many years to build the Great Wall.
It is a pity that such a thing ( should ) happen in your class.
It is a pity that he is ill.
2. It is time ( about time ，high time ) that ... 该句型中that 后的从句应该用虚拟语气，值得注意的是常
㈠ 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: Ningbo is a beautiful city, isn’t it?
1.2.也可以指动物或婴儿(未知性别的婴儿或孩子): Is this your dog？No, it isn’t.
1.3.也可指抽象事物: It was a great surprise to me when he did a thing like that．
用It作形式主语的句型： (1) It is adj.＋ to do sth. It is difficult to translate this article.翻译这篇文章 很难。
(2) It is adj. ＋ for/of sb.＋ to do sth. It is important for us to learn English.学习英语对我 们很重要。
It is suggested that the meeting ( should ) be put off.
3）.It +n+that ... 1. It is a pity ( a shame ... ) that ...
that后的从句一般用虚拟语气（should + 动词原形）， should可省去．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。
2) It was I that/who met your father in the street yesterday．
④强调句中也要注意主谓一致、人称一致和否定转移 的问题。
It is they who are our friends． It was not until ten o'clock that we got home last night．