“It”用法及其句型和固定搭配讲解
it的用法
语法：it的用法一.it 作人称代词1.it的最基本用法是作代词，指代前面所提到过的事情、事物、群体、想法，也可以指代未指明但谈话双方都明白的事情或情况。
如：The Parkers bought a new house but it will need a lot of work before they can move in.---I have broken a plate.---It (Breaking the plate) doesn’t matter.2.it也可以指代性别不明或性别被认为不重要的人或动物。
如：---Is it your dog？---No, it isn’t.二.it 作非人称代词1.指时间It is half past two now.2.指距离It is 6 miles to the nearest hospital.3.指温度It is very cold in the room.4.指天气A lovely day, isn’t it?/ It is a bit windy.5.指日期---What’s the date today? --- It’s May 1st, 2014.6.指季节It is winter now.7.指环境It was very quiet in the café.8.指价值---What’s the price of the T-shirt？---It is 150 yuan.三.it作形式主语1.it替代作主语的动词不定式（to do）(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, possible, right, important, polite, clear, obvious, useful, dangerous, legal, illegal等。
高中英语语法大全归纳总结-高中语法归纳总结
高中英语语法权威解析（共十二章）第一章名词性从句在句子中起名词作用的句子叫名词性从句(Noun Clauses）。
名词性从句的功能相当于名词词组 , 它在复合句中能担任主语、宾语、表语、同位语、介词宾语等，因此根据它在句中不同的语法功能，名词从句又可分别称为主语从句、宾语从句、表语从句和同位语从句。
一．主语从句主语从句是在复合句中充当主语的从句，通常放在主句谓语动词之前或由形式主语it 代替，而本身放在句子末尾。
1.It 作形式主语和 it 引导强调句的比较It 作形式主语代替主语从句，主要是为了平衡句子结构，主语从句的连接词没有变化。
而that。
it 引导的强调句则是对句子某一部分进行强调，无论强调的是什么成分，都可用连词被强调部分指人时也可用who/whom 。
例如：a)It is a pity that you didn ’ t go to see the film. 你不去看那场电影真可惜。
b)It doesn ’t interest me whether you succeed or not. 我对你成功与否不感兴趣。
c)It is in the morning that the murder took place.谋杀案是在早上发生的。
（强调句型）d)It is John that broke the window. 是 John 打碎的窗户。
（强调句型）2.用 it 作形式主语的结构(1) It is ＋名词＋从句It is a fact that 事实是It is an honor that 非常荣幸It is common knowledge that 是常识(2) It is ＋形容词＋从句It is natural that 很自然It is strange that 奇怪的是(3) It is ＋不及物动词＋从句It seems thatIt happened that It appears that似乎碰巧似乎(4) It ＋过去分词＋从句It is reported thatIt has been proved that It is said that据报道已证实据说3.主语从句不可位于句首的五种情况：（1） if 引导的主语从句不可居于复合句句首。
it用法-1
5. It was __C____ he came back from Africa that year______ he met the girl he would like to marry. (江西2009) A. when; then B. not; until C. not until; that D. olny, when 6. It was along the Missippi River __C____ Mark Twain spent much of hid childhood. (天津2008) A. how B. which C. that D. where
2. I know there is not easy to be a teacher.
(2004湖北) there → it
3. This is not surprising that the Silver Ghost was regarded as “the best car in
the world”. This → It
to our school. Distance 3) I hope that it will be fine tomorrow. Weather 5) It’s spring now. Season 6) It’s quiet here. Circumstance
用法二：引导词 “1、iti”t 用作形式主语
• You may depend on it that he will turn up in time. 你可以相 信他会及时赶到的。
• I can’t answer for it that the boy is honest. 我不能保证这个 男孩是诚实的。
• I’ll see to it that all these letters will be sent to the post before twelve. 我将注意让所有的信件在12点以前送到邮局。
高中英语it形式主语和形式宾语分析
mind. (看来汤姆可能会改变主意。)
⑤ 若句子是疑问形式，就只能用it作形 式主语。
e.g. Does it matter much that they won’t come tomorrow? (他们明天
(据说他们发明了一种新型电脑。) • It is believed that China will become one of the strongest
countries in the world. • (大家都相信中国将会步入世界强国之列。)
④ It + seems / appears / happens等不及 物动词 + that …. e.g. It seems that he enjoys pop songs
• ② It + 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。) •
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
高考英语专题复习 模块二 代词(it用法)、介词、连词
2008高考英语专题复习模块二代词（it用法）、介词、连词☆基础知识自助餐互学释疑，举一反三！☆一、考点导航 ---Bob从高考题看模块二的命题热点：考查重点是代词（it用法）、介词、连词的基本运用。
考查焦点是：1.注意找到代词的指代本体和单复数形式。
人称代词中主要考查名词性物主代词和形容词性物主代词的用法；人称代词的宾格形式；动词或介词与反身代词的连用及反身代词作作表语和同位语。
2.指示代词的用法。
3.不定代词的指代的语义和内容；及其词性变化和句法功能。
4.疑问代词(W H-ever的用法)和关系代词的用法。
5.哪些代词用于肯定，哪些代词用于否定，各指代什么。
焦点：one,this, that, so，much, same。
6.介词主要集中在固定搭配的考查，建议同学们多掌握一些常用的搭配并思考运用。
7.连词考查主要与并列句和复合句结合，尤其是名词性从句、定语从句和状语从句（注意分句间逻辑关系的理解），但是不能忽略并列连词的用法（主要关注表示转折和因果两种关系）。
二、考点聚焦【基本规则、功能与用法】Unit 1 代词代词种类一.人称代词:代替人或物,可做主\ 宾\ 表语人称代词的一般顺序:单you he I；复we you they单复数对应：单you he I；复you they we二.物主代词表所属关系，做主\ 宾\ 表\ 定语三. 反身代词: 放在名词.代词后或句末表示亲自.自己起强调作用可做宾\ 表\ 同位语用于某些短语:help oneself to look after oneself Enjoy oneself = have a good timedress oneself teach oneself = learn …by oneself lose oneself in (陶醉于)come to oneself (醒过来) talk to oneself四. 指示代词:起指示, 指代作用，做主\ 宾\ 表\ 定语this these 近指that those 远指such 这样的same 同样的This book is mine and that one is yours.Such a lot of people = so many peopleWe were born on the same day.That 或those 代替前面提到过的名词.The weather of BeiJing is colder than that of Nan Jing.The bikes in BeiJing is much more than those in Tokyo.五.疑问代词: 表疑问, 做主宾表定语Who whom whose which what1.who went with you to the park?2.whom did you go with to the park?3.Whose book is this?六. 关系代词：引导定语从句，做主\ 宾\ 定语Who whom whose which that1.He is the boy who was named Tom.2.This is the book that /which I read .七. 连接代词:引导名词性从句, 做主\ 宾\ 表\定语Who whom whose which what1.I wanted to know which team would win.2.He said that he had lived in London for years.八. 不定代词1. some 的用法(1) some 通常表示不定数量“一些”, 修饰可数名词复数或不可数名词,可指人也可指物.I want to drink some water. Give me some.(2) some 有时可以修饰可数名词单数,表示“某个”He went to some place in Europe.Some Mr li called this morning. 某位李先生上午来电话了。
高考英语备考笔记
高考英语冲刺笔记整理高中英语语法权威解析目录:第01章名词性从句第02章“It”用法及其句型和固定搭配讲解第03章高中英语语法中的省略现象第04章主谓一致第05章动词不定式第06章倒装结构第07章定语从句第08章被动语态第09章祈使句第10章感叹句第11章疑问句第12章名词第一章名词性从句在句子中起名词作用的句子叫名词性从句(Noun Clauses)。
名词性从句的功能相当于名词词组, 它在复合句中能担任主语、宾语、表语、同位语、介词宾语等，因此根据它在句中不同的语法功能，名词从句又可分别称为主语从句、宾语从句、表语从句和同位语从句。
一. 主语从句主语从句是在复合句中充当主语的从句，通常放在主句谓语动词之前或由形式主语it代替，而本身放在句子末尾。
1. It 作形式主语和it引导强调句的比较It 作形式主语代替主语从句，主要是为了平衡句子结构，主语从句的连接词没有变化。
而it引导的强调句则是对句子某一部分进行强调，无论强调的是什么成分，都可用连词that。
被强调部分指人时也可用who/whom。
例如：a) It is a pity that you didn’t go to see the film. 你不去看那场电影真可惜。
b) It doesn’t interest me whether you succeed or not.我对你成功与否不感兴趣。
c) It is in the morning that the murder took place. 谋杀案是在早上发生的。
(强调句型)d) It is John that broke the window. 是John打碎的窗户。
(强调句型)2. 用it 作形式主语的结构(1) It is + 名词 + 从句It is a fact that … 事实是…It is an honor that …非常荣幸It is common knowledge that …是常识(2) It is + 形容词 + 从句It is natural that… 很自然…It is strange that… 奇怪的是…(3) It is + 不及物动词 + 从句It seems that… 似乎…It happened that… 碰巧…It appears that… 似乎…(4) It + 过去分词 + 从句It is reported that… 据报道…It has been proved that… 已证实…It is said that… 据说…3. 主语从句不可位于句首的五种情况：(1)if 引导的主语从句不可居于复合句句首。
“It”作形式主语和宾语
It is very important to learn a foreign language. (学一门外语非常重要。) 翻译 1.覆水难收。
I_t_is__uselessc_r_y_in_g_ over the spilt milk. 2.她嫁给那样的男பைடு நூலகம்真让人惊讶。
_I_t_w_a_s__really surprising _t_h_a_t_ she _m__a_rr_i_e_d_ a man like that.
② 某些表示“喜、怒、哀、乐”的动 词，如like, enjoy, love, hate等，往 往不能直接接宾语从句；
I don’t like it that he’s so lazy. 我不喜欢他那么懒惰。
I hate it when my mother asks me to eat eggs. 我讨厌母亲要我吃鸡蛋。
How long _d_o_e_s_i_t_t_a_k_e_y_o_u_to go to Beijing from Fuzhou by train?
二、It 用作形式宾语
当不定式（短语）、动名词（短语）或从句在 某个句子中作宾语时，为保持句子结构平衡， 避免句式结构的混乱，常用it作形式宾语，而 将真正的宾语放在句尾。此时it仍只起先行引 导作用，本身无词义。
翻译：他坚持说自己是无辜的。 He __in_s_i_s_te_d__o_n__it _t_h_a_t__ he was innocent.
④ 由及物动词与介词组成的固定搭 配中，宾语从句若作该动词的宾语时， 须借用it。 I leave it to your own judgment whether you should do it.
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2009-09-21 09:58:41| 分类：study | 标签：|字号大中小订阅一、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 ...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 yesterda y.(你昨天没看成那部电影真遗憾。
英语-高中英语语法归纳总结-35页
. 高中英语语法权威解析 目录: 第01章 名词性从句 第02章 “It”用法及其句型和固定搭配讲解 第03章 高中英语语法中的省略现象 第04章 主谓一致 第05章 动词不定式 第06章 倒装结构 第07章 定语从句 第08章 被动语态 第09章 祈使句 第10章 感叹句 第11章 疑问句 第12章 名词
第一章 名词性从句
在句子中起名词作用的句子叫名词性从句(Noun Clauses）。 名词性从句的功能相当于名词词组, 它在复合句中能担任主语、宾语、表语、同位语、介词宾语等，因此根据它在句中不同的语法功能，名词从句又可分别称为主语从句、宾语从句、表语从句和同位语从句。
一． 主语从句 主语从句是在复合句中充当主语的从句，通常放在主句谓语动词之前或由形式主语it代替，而本身放在句子末尾。
1. It 作形式主语和it引导强调句的比较 It 作形式主语代替主语从句，主要是为了平衡句子结构，主语从句的连接词没有变化。而it引导的强调句则是对句子某一部分进行强调，无论强调的是什么成分，都可用连词that。被强调部分指人时也可用who/whom。例如： a) It is a pity that you didn’t go to see the film. 你不去看那场电影真可惜。 b) It doesn’t interest me whether you succeed or not. 我对你成功与否不感兴趣。 c) It is in the morning that the murder took place. 谋杀案是在早上发生的。（强调句型） d) It is John that broke the window. 是John打碎的窗户。（强调句型）
2. 用it 作形式主语的结构 (1) It is ＋ 名词 ＋ 从句 It is a fact that … 事实是… It is an honor that …非常荣幸 It is common knowledge that …是常识 (2) It is ＋ 形容词 ＋ 从句 It is natural that… 很自然… It is strange that… 奇怪的是… .
高中英语语法归纳总结_(1)
高中英语语法权威解析第一章名词性从句句子是按照一定的语法规律组成的，表达一个完整的意义。
一个句子一般由两部分构成，即主语部分和谓语部分，这两部分也叫做句子的主要成分。
句子的次要成分包括宾语，定语，状语，表语等。
句子成分是句子中起一定功用的组成部分。
在句子中起名词作用的句子叫名词性从句(Noun Clauses）。
名词性从句的功能相当于名词词组, 它在复合句中能担任主语、宾语、表语、同位语、介词宾语等，因此根据它在句中不同的语法功能，名词从句又可分别称为主语从句、宾语从句、表语从句和同位语从句。
一．主语从句主语从句是在复合句中充当主语的从句，通常放在主句谓语动词之前或由形式主语it代替，而本身放在句子末尾。
1. It 作形式主语和it引导强调句的比较It 作形式主语代替主语从句，主要是为了平衡句子结构，主语从句的连接词没有变化。
而it引导的强调句则是对句子某一部分进行强调，无论强调的是什么成分，都可用连词that。
被强调部分指人时也可用who/whom。
例如：a) It is a pity that you didn’t go to see the film. 你不去看那场电影真可惜。
b) It doesn’t interest me whether you succeed or not.我对你成功与否不感兴趣。
c) It is in the morning that the murder took place.谋杀案是在早上发生的。
（强调句型）d) It is John that broke the window.是John打碎的窗户。
（强调句型）2. 用it 作形式主语的结构(1) It is ＋名词＋从句It is a fact that …事实是…It is an honor that …非常荣幸It is common knowledge that …是常识(2) It is ＋形容词＋从句It is natural that…很自然…It is strange that…奇怪的是…(3) It is ＋不及物动词＋从句It seems that…似乎…It happened that…碰巧…It appears that…似乎…(4) It ＋过去分词＋从句It is reported that…据报道…It has been proved that…已证实…It is said that…据说…3. 主语从句不可位于句首的五种情况：（1）if 引导的主语从句不可居于复合句句首。
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“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. It替代作主语的从句常见句型（1）It is + noun +从句例It is no secret that the president wants to have a second term at office。
（2）It is adj. +clauseIt’s surprising that…（should)………竟然……It's a pity/shame that…（should）………竟然……例It's important that you should apologize to her for your rudeness。
（=It’s of much importance that you should apologize to her for your rudeness.）（3）It verb sb。
+ clause= It is v-ing + clauseIt+surprise/delight/interest/disappoint/worry/disturb/annoy/amaze/bother/concern/frighten/please/anger sb. that…例It worried me that she drove so fast.（= It was worrying that she drove so fast.）(4)It verb（to sb。
）that…= sb/sth verb to do（verb = appear，seem，come about，emerge,follow,chance，happen,occur，transpire，turn out ，work out）例It（so)happened/chanced that they were out.（= They happened/chanced to be out。
）（5)It is v-ed that…=sb/sth is to do（verb=say,report，think，believe，hope,expect，agree，accept，decide，determine，intend，plan，understand,know）例It is said that the couple have gotten divorced.（=The couple are said to have gotten divorced.）(6）It is v-ed that …(should）…（verb=demand,request，require,order,suggest，advise，recommend例It is suggested that they should begin with the third question。
“It"用法及其句型和固定搭配讲解2007-05—01 17:14：05。
0中国高中生网(http://www。
）三、It作主语的句型1. It takes sb. …to do…（=sb takes…to do…)某人用多长时间做某事例It took the men a week to mend our roof。
（= The men took a week to mend our roof。
）2. It's（just）（un）like sb。
to do…（不）像某人做某事的风格例It was（just)like him to think of helping us。
3。
It’s（about/high）time that…should /v-ed…是该做某事的时候了例It's（about/high）time that we should take action.4. It's the x-th time（that）…have v—ed…第几次做某事了例It's the third time that he has failed the driving test。
5。
It is/has been…since …continuous v-ed（延续性动词）某动作已有多长时间不发生了例It’s 10 years that he lived here6。
It was（not）…before…过（不）了多长时间某动作发生了例It was not long before they arrived.四、It 作形式宾语用来替代作宾语的从句、动词不定式、动名词，而把真正作宾语的从句、动词不定式、动名词置于句尾。
It 作形式宾语的常见句型：1。
verb+ it+ adj./noun(for/of)to do/clause (verb=think，believe，suppose，consider，feel，make,keep…)例I think it hard for you to do the task on your own。
/I think it hard that you’ll do the task on your own.2。
verb+it+adj。
/noun(one’s）doing（adj.=useless/worth/worthwhile)（noun=no use/no good/worth one's while/a waste of time/money/energy/words）(verb=think，believe，suppose，consider，feel,make，keep…)例I’ll make it worth your while telling me about his secret。
3。
verb+it+ important/unimportant/necessary/unnecessary/natural/essential that …（should）…verb+it+of much/great/no/little importance that…（should）…（verb=think,believe，suppose，consider,feel，make，keep…）例I think it important that you（should）attendthe conference.4。
verb + it+ as+ noun/adj.+ clause（verb=accept，regard，take，see，view）例The lecturer takes it as encouraging when so many students attend his lecture.5。
v。
+it + prep。
+ that…owe it to sb. that…把…归功于…leave it to sb that…把…留给某人去做take it for granted that …想当然keep it in mind that…例Don’t bother to arrange anything. Just leave it to me to sort out。
6。
It用在不能直接跟宾语从句的动词后面，尤其是表示好恶的动词后，enjoy,like,love，dislike，resent，hate，don't mind，be fond of，feel like，see to 宾语从句紧跟it之后例I hate it you can swim so well and I can’t.7。
It用在不能直接跟宾语从句的介词后面，宾语从句紧跟it之后（except that例外) 例I’m for it that you will follow their advice.五、强调句型It is/was+被强调部分+ that（who）…强调句型用来强调谓语动词以外的任何句子成分。
当被强调部分是人时也可以用who。
在使用强调句型时需注意以下几点：1. 请注意强调句型的特殊疑问句例When was it that he changed his mind to take part in the activity？2. 在强调原因状语从句时,只能强调由because所引导的从句例It was because he was ill that he didn't come to school yesterday。