高考英语语法知识之It 的用法总结
1．It is + 被强调部分+ that ...
该句型是强调句型。将被强调的部分放在前面，其它部分置于that之后。被强调部分可以是主语，宾语，状语。强调的主语如果是人，that可以由who换用。
如果把这种句型结构划掉后，应该是一个完整无缺的句子。这也是判断强调句型与其它从句的方法。
It was they that (who) cleaned the classroom yesterday. It was in the street that I met her father.
2．It was not until + 被强调部分+ that ...
该句型也是强调句型。主要用于强凋时间状语，译成汉语＂直到．．．才．．．＂，可以说是not ... until ... 的强调形式。
It was not until she took off her dark glasses that I realized she was a famous film star.
= Not until she took off her dark glasses did I realize she was a famous film star.
= I didn’t realize she was a famous film star until she took off her dark glasses.
3．It is clear ( obvious, true, possible,certain....) that .....
该句型中it 是形式主语，真正的主语是that 引导的主语从句，常译为＂清楚（显然，真的，肯定．．．）＂是主语从句最常见的一种结构。
It is very clear that he’s round and tall like a tree.= That he’s round and tall like a tree is very clear.
4. It is important ( necessary, right, strange, natural...) that ...
由于主句中的形容词不同，that 后的从句中要用虚拟语气（should + 动词原形），should 可以省去。
It is important that we (should) learn English well. It is necessary that he (should) remember these words.
5. It is said (reported, learned....) that ...
该句型中的it 仍是形式主语，真正主语是that 引导的主语从句。该结构常译为＂据说（据报道，据悉．．．）＂。It is said that he has come to Beijing.
6. It is suggested ( ordered ... ) that ...
主句中的过去分词是表示请求，建议，命令等词时，that后的从句要用虚拟语气（should + 动词原形），should 可以省。常译为＂据建议；有命令．．
It is suggested that the meeting ( should ) be put off.
It was ordered that we ( should ) arrive there in two hours.
7. It is a pity ( a shame ... ) that ...
该句型中，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 is a pity that such a thing ( should ) happen in your class. It is a pity that he is ill.
8. 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①常用过去时态表示虚拟．②有时也用should + 动词原形，should 不能省。常译为＂是（正是）．．．的时侯．．．＂。
It is time that children should go to bed. = It is time that children went to bed.
9. It is the first ( second ... ) time that ...
该句型中的that 从句不用虚拟语气，而用完成时态。至于用什么完成时态，由主句的谓语动词的时态决定。如果是一般现在时，后面从句用现在完成时态；如果是一般过去时，后面从句则用过去完成时态。该结构中that 可以省去；it有时用this / that 替换．常译为＂这是某人第几次做某事了＂。
It is the first time I have been here. = This is the first time I have been here.
10 It is the +形容词最高级+ 名词+ that + …..
该句型中的that 从句不用虚拟语气，而用完成时态。至于用什么完成时态，由主句的谓语动词的时态决定。如果是一般现在时，后面从句用现在完成时态；如果是一般过去时，后面从句则用过去完成时态。该结构中that 可以省去；it有时用this / that 替换．常译为＂这是某人做过的最…的事情＂。
This is the best film that I have ever seen . That was the worst song that he had heard .
11. It is .... since ...
该句型主要用作处理瞬间动词的完成时，又要和表示一段时间的时间状语连用的问题。主句中是时间作表语，其时态是现在时或完成时，since 引导的从句通常是一般过去时态，而且是瞬间动词。如果主句是一般过去时，从句则用过去完成时。
It is ( has been ) 5 years since his father died.
12. It is ... when ...
该句型中的when 引导的是一个时间状语从句，主句中的it 指时间，表语由具体的时间充当。常译为＂当．．．的时候，是．．．＂。
It w as 5 o’clock when he came here.
比较：There was a time when + 定语从句（曾经一度….；有一个时期…）
There was a time when Iraq was one of the strongest countries in the world .
There was a time when I was disappointed and wanted to leave here .
13. It be ... before ...
该句型主句中的it 指时间, 主句中的时态常是将来一般时或过去时两种时态．主句中的表语多是long, not long , 3 days , 2 weeks 等表示时间段的词或短语。常译为＂．．．之后．．．＂。
It was 3 days before he went to Beijing. It will be not long before he finishes his job.
14. It happens (seems, looks, appears ) that...
该句型中it是形式主语，that 引导的是主语从句，主句中的happen , seem等词是不及物动词．
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．．．
15. It looks ( seems ) as if ...
该句型中it无意义。as if 引导一个状语从句。常译为，＂看起来好象．．．＂如果与事实不相符合，则用虚拟语气．
It looks as if he is ill.It looks as if he were ill. It seemed as if he were dying.
16. It takes/costs sb. ... to do sth.
该句型中的不定式是真正的主语，it是形式主语，句型中的直接宾语是时间。常译为＂做．．．要花费某人．．．＂。It took thousands of people many years to build the Great Wall.
注意：当主语和表语都是不定式时，不能用it 作形式主语代替动词不定式。
To see is to believe . To respect others is to be respected .
17. It is kind ( of sb. ) to do sth.
该句型中的不定式短语是真正主语，如果不定式的逻辑主语是由of引起，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 , good （好心的）, honest , horrible , kind , lazy , modest , naughty , nice（有教养的）, polite, rude , silly , stupid , wise , wrong（错误的）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.
18. It is necessary ( for sb. ) to do sth.
如果不定式的逻辑主语是由for引起，主句中的形容词通常是表示重要性，紧迫性，频繁程度，难易，安全等情况的形容词。常见的形容词有：①important, necessary, natural ②easy , safe , common , normal , hard , difficult , dangerous , unusual, rare , impossible , pleasant等。
在①中的形容词作表语可以用从句改写，
It is important for her to come to the party. = It is important that she (should ) come to the party
19. It is no good / use / fun doing sth.
It is a great pleasure / a waste of time / a bore doing sth .
It is useless / nice / good doing sth .
该句型中的真正主语是动名词或动名词短语，主句中的表语可以是名词或形容词。
It is no good learning English without speaking English. It is useless crying over spilt milk .
20 . 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 doesn’t matter if they are old.
21. We think it important to learn a foreign language.
该句型中的it 作形式宾语。为了记忆方便我们可称该句型为"6123结构"。
6：指主句中常用的动词：think, believe, make, find, consider, feel ( 另外表示人的心理状态的动词还有：like , love , hate , appreciate , don’t mind , depend on 等)
1：指的是形式宾语it；
2：指的是宾补的两种形式：形容词或名词；
3：指的是真正宾语的三种形式：不定式短语，动名词短语或that引导的宾语从句。
We think it our duty to clean our classroom every day.
He felt it important learning English well.
They found it difficult that they would finish their work in two days.
I hate it when people talk with their mouths full of food .
I’d appreciate it if you would help me .
I like it when it rains in spring . 最新人教版九年级物理第十四章单元测试卷（含答案）
高中英语语法权威解析 目录: 第０１章名词性从句 第0２章“Iｔ”用法及其句型与固定搭配讲解 第03章高中英语语法中得省略现象 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得句子叫名词性从句(Ｎｏun Cｌaｕsｅs)。名词性从句得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得语法功能,名词从句又可分别称为主语从句、宾语从句、表语从句与同位语从句、一. 主语从句 主语从句就是在复合句中充当主语得从句,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 作形式主语与ｉt引导强调句得比较 It 作形式主语代替主语从句,主要就是为了平衡句子结构,主语从句得连接词没有变化、而i ｔ引导得强调句则就是对句子某一部分进行强调,无论强调得就是什么成分,都可用连词that。被强调部分指人时也可用who/ｗｈｏｍ、例如: ａ) It isａpitｙｔhaｔyoｕｄidn’t go ｔo seｅｔhｅｆilm.您不去瞧那场电影真可惜。 b) It doeｓn’tｉntereｓt me whethｅrｙou sｕｃceed or not、我对您成功与否不感兴趣、 c) Ｉｔisｉn thｅｍoｒnｉng thaｔｔｈe ｍurder took place. 谋杀案就是在早上发生得、(强调句型) d) Ｉt is Joｈn tｈat broke ｔｈeｗｉｎdow。就是Joｈn打碎得窗户。(强调句型) 2、用ｉt 作形式主语得结构 (1)It is + 名词＋从句 It is ａfaｃt tｈat…事实就是… Ｉt ｉs an honor ｔhat …非常荣幸 It ｉｓｃommon knowlｅdge ｔhat …就是常识 (2)Ｉt is + 形容词+从句 It is naturａl thａt…很自然… It ｉｓstrａｎｇe that…奇怪得就是…(3) It ｉｓ＋不及物动词+ 从句 Ｉｔｓｅems thａｔ…似乎… Ｉt ｈappeneｄthat…碰巧… Iｔappeaｒs that…似乎…
高中英语语法：It的完整用法精讲 it可用作人称代词、指示代词、先行词及引导词等。 1. 人称代词it，是第三人称单数中性，代表前文已提到过的一件事物。如： 1）That vase is valuable. It's more than 200 years old. 那个花瓶很珍贵，它有200多年的历史。 2）I love swimming. It keeps me fit. 我喜欢游泳，它能使我保持健康。 当说话者不清楚或无必要知道说话对象的性别时，也可用it来表示。如： 3）It's a lovely baby. Is it a boy or a girl? 宝宝真可爱，是男孩还是女孩？ it可用来指代团体。如： 4）The committee has met and it has rejected the proposal. 委员会已开过会，拒绝了这项建议。 it用以代替指示代词this, that.如： 5）--- What's this? --- It's a pen. —这是什么？—是一支钢笔。 6）--- Whose book is that? --- It's Mike's. —那是谁的书？—是迈克的。 2. 指示代词it，常用以指人。如： 7）Go and see who it is. 去看看是谁。 8）--- Who is making such a noise? —是谁发出这样的吵闹声？ --- It must be the children. —一定是孩子们。 3.虚义it无指代性，常用作没有具体意义的主语，出现于表示天气、气候、温度、时间、地点、距离等意义的句子中。如： 9）It is half past three now. 现在是三点半钟。 10）It is six miles to the nearest hospital from here. 这里离最近的医院也有六英里。 11）It was very cold; it snowed and grew dark. 天气很冷；天下着雪，渐渐地变黑了。 it也常用来表示一般的笼统的情况。如： 12）It's awful—I've got so much work I don't know where to start. 糟透了——我有这么多工作要做我不知从何开始。 13）How is it going with you? 你近况如何？ 14）Take it easy. 不要紧张。 it也常用于下列结构： 15）It looks as if the college is very small. 看起来这个学院很小。 16）It seems as though our plan will be perfect. 似乎我们的计划很完善。 17）It's my turn. 该轮到我了。 it也常用于某些习惯用语中作宾语，各该习惯用语有具体意义，但it并无具体意义。如：cab it 乘车catch it 受责，受罚come it 尽自己分内come it strong 做得过分walk it 步行make it 办成take it out of somebody 拿某人出气 4. 先行词it. it充当形式主语或形式宾语，本身无意义，只起一种先行引导的作用，先行词不重读。后面的真正主语或真正宾语通常是不定式结构、-ing分词结构或名词性从句。 （1）用作形式主语
高中英语语法总结 懂一点语法，在英语阅读方面的理解会更加透彻。下面是小编给大家整理的高中英语语法的相关知识，供大家参阅! 高中英语语法：助动词一.概念: 助动词是帮助主要动词构成各种时态,语态,语气以及否定或疑问结构的动词.助动词分为时态助动词和结构助动词两种. 二.相关知识点精讲: 1. 助动词be的用法 1) be +现在分词，构成进行时态。例如： They are having a meeting. 他们正在开会。 English is becoming more and more important. 英语现在越来越重要。 2) be + 过去分词，构成被动语态。例如： The window was broken by Tom.. 窗户是汤姆打碎的。 English is taught throughout the world. 世界各地都教英语。 3) be + 动词不定式，可表示下列内容： a. 表示最近、未来的计划或安排。例如： He is to go to New York next week.. 他下周要去纽约。 We are to teach the freshmen. 我们要教新生。 说明：这种用法也可以说成是一种将来时态表达法。 b. 表示命令。例如：
You are to explain this. 对此你要做出解释。 He is to come to the office this afternoon. 要他今天下午来办公室。 c. 征求意见。例如： How am I to answer him? 我该怎样答复他? Who is to go there? 谁该去那儿呢? d. 表示相约、商定。例如： We are to meet at the school gate at seven tomorrow morning. 我们明天早晨7点在校门口集合。 2. 助动词have的用法 1)have +过去分词，构成完成时态。例如： He has left for London. 他已去了伦敦。 By the end of last month, they had finished half of their work. 上月未为止，他们已经完成工作的一半。 2)have + been +现在分词，构成完成进行时。例如： I have been studying English for ten years. 我一直在学英语，已达十年之久。 3)have +been +过去分词，构成完成式被动语态。例如： English has been taught in China for many years. 中国教英语已经多年。 3.助动词do 的用法 1)构成一般疑问句。例如：
高考英语语法总结 一．非谓语动词 一．不定式： 一）不定式的常考形式： 1) 一般形式：He decided to work harder in order to catch up with the others. 被动形式: He preferred to be assigned some heavier work to do. 语法功能：表示与谓语动词同步发生 2) 完成形式：He pretended not to have seen me. 被动形式：The book is said to have been translated into many languages. 语法功能：表示发生在谓语动词之前 二）不定式常考的考点： 1）不定式做定语----将要发生 2）不定式做状语----目的 3）不定式充当名词功能---To see is to believe. 三)不定式的省略 1)感官动词see, watch, observe, notice, look at, hear, listen to, smell, taste, feel + do 表示动作的完整性，真实性； + doing 表示动作的连续性，进行性 I saw him work in the garden yesterday. 昨天我看见他在花园里干活了。(强调"我看见了"这个事实) I saw him working in the garden yesterday. 昨天我见他正在花园里干活。（强调"我见他正干活"这个动作） " 感官动词后面接形容词而不是副词：The cake tastes good; It feels comfortable. 2) 使役动词have bid make let 等词后不定式要省略但同1)一样被动以后 要还原to I 'd like to have John do it. I have my package weighed. Paul doesn't have to be made to learn. 3) help help sb do help sb to do help do help to do 四)有些动词后只跟不定式如： want，wish，hope，manage，promise，refuse，pretend，plan，offer，decide，agree，expect allow sb to do, cause sb to do , permit sb to do, enable sb to do force sb to do. be more likely to do love to do warn sb to do be able to do be ambitious to do. begin to do . start to do We agreed _______ here，but so far she hasn't turned up yet．（NMET 1995） A．having met B．meeting C．to meet D．to have met （Key：C） 五) 有的时候to后面要接-ing形式
按：本套资料省去了名词、代词、形容词等部分，保留了最最核心的句型和动词。希望能有所帮助。 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。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 …; It is an honor that…; It is common knowledge that… (2) It is ＋形容词＋从句 It is natural that…It is strange that… . (3) It is ＋不及物动词＋从句 It seems that…It happened that…It appears that… (4) It ＋过去分词＋从句 It is reported that…It has been proved that…It is said that… 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。 （2）It is said /reported…结构中的主语从句不可提前。例如： 正确表达：It is said that President Jiang will visit our school next week. ( 错误表达：That President Jiang will visit our school next week is said. （3）It happens/occurs…结构中的主语从句不可提前。例如： 正确表达：It occurred to him that he failed in the examination. 错误表达：That he failed in the examination occurred to him. （4）It doesn’t matter how/whether …结构中的主语从句不可提前。例如： 正确表达：It doesn’t matter whether he is wrong or not. 错误表达：Whether he is wrong or not doesn’t matter. （5）含主语从句的复合句是疑问句时，主语从句不可提前。例如： ； 正确表达：Is it likely that it will rain in the evening 错误表达：Is that will rain in the evening likely 4. what 与that 在引导主语从句时的区别 what 引导主语从句时在句时在从句中充当句子成分，如主语．宾语．表语，而that 则不然。例如：
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。 一、it用作人称代词和非人称代词 1．用作人称代词 (1)it用来指代前面的名词或前面提到过的事。 My friend offered me a beautiful gift yesterday, and I like it very much. 我朋友昨天给了我一件漂亮的礼物，我非常喜欢。
高中英语语法总结（完整版；高中必看！） 专题一：定语从句 一、关系代词引导的定语从句 1、that 指人或物在从句中作主语，宾语或表语 which指物在从句中作主语，宾语或表语（作宾语时可以省略） who指人在从句中作主语，宾语或表语 whom指人在从句中作宾语 whose指人或物在从句中作定语 as指人或物在从句中作主语，宾语或表语 but指人或物在从句中作主语，宾语或表语 注意：指物时，whose+名词=the+名词+of which或of which+the+名词2、as 的用法 （1）常用于下列结构：such…as; so…as;the same…as; as…as 注意：the same…as 表示同一类，不同一个 the same…that 表示同一个
（2）as与which的区别 a、位置不同 as可放在主句后，主句前或主句中间；which只能放在主句后。 b、as起连接作用，表达说话人的观点、看法，并指出主句内容的根据或出处，意为“正如，正像”。 Which相当于并列句，可以用and this来代替，意为“这一点，这件事’”。 注意：as常用于下列结构：as we know/ as is known to all, as we all can see, as has been said before/above, as might be excepted, as is often the case, 一般不能用which代替as。 c、在从句中作主语时，which既可作系动词be的主语也可作实义动词的主语，而as只可作系动词be的主语。 二、只用that不用which的情况 1、.先行词为all , much, everything, nothing , something ,anything, nothing, none, the one等不定代词时 2、先行词被only, any, few, little, no , all, just , very ,right等修饰时. 3、当先行词是最高级或被形容词最高级修饰时。
高一英语语法归纳总结----定语从句的归纳 一．几个基本概念 1.定语从句的定义：用作定语的从句叫定语从句。 2.先行词：被定语从句所修饰的名词或代词。 3.定语从句的位置：紧跟先行词（名词或代词）之后。 4.引导词：引导定语从句的词（包括关系代词和关系副词）。 ﹙1﹚关系代词：that/who/whom/which/as ﹙2﹚关系副词：when/where/why 5.引导词的位置：位于定语从句之前（先行词之后）。【as除外】 6.引导词的功能（作用）： ﹙1﹚连接先行词和定语从句。 ﹙2﹚在定语从句中充当一定的成分（关系代词充当主语或宾语，关系副词充当状语）。7.定语从句的类型： ﹙1﹚限定性定语从句（主句和定语从句之间无逗号）。 ①直接由引导词引导定语从句 The man who you’re talking to is my friend. ②由介词+关系代词（whom/which）引导 The man to whom you’re talking is my friend. I need a pen with which I can write a letter. =I need a piece of paper on which I can write a letter. 介词的选用可根据从句中的相关词组确定，该介词通常可以放在关系代词之前，也可放在从句之尾。例如： The man (who/whom/that) I talked about at the meeting is from Beijing University. =The man about whom I talked at the meeting is from Beijing University. The palace (which/that) I often pay a visit to was built in the 17th century. =The palace to which I often pay a visit was built in the 17th century. ﹙2﹚非限定性定语从句（主句和定语从句之间用逗号隔开）。 ①直接由引导词引导定语从句。 ②由介词+关系代词（whom/which）引导。 I live in a house far away from the city, in front of which is a big tree. There is an apple tree standing at the gate, on which are many apples. This is the man to whom I gave the book. ③由“代词/名词+of+whom/which”或“of which/ whom +名词/代词”(先行词指 人用whom,指物用which)引导。One, some, any, none, all, both, several, many, most, neither, either等词、数词、分数或百分比与of whom或of which连用。 He has five children, two of whom are abroad. (比较：He has five children, and two of them are abroad.)
高中英语语法总结 第一章主谓一致 (一) 语法一致原则: 即主语为单数,谓语用单数,主语为复数,谓语也用复数. 以下为注意事项: 1. 单数主语即使后面带有with , along with, together with, like(像), but (除了),except, besides, as well as, no less than, rather than(而不是), including, in addition to 引导的短语, 谓语动词仍用单数. 如: Air as well as water is matter. 空气和水都是物质. No one except two servants was late for the dinner. 除了两个仆人外, 没有一个人迟来用餐。 2. 用and连接的并列主语,如果主语是同一个人,同一事,同一概念, 谓语动词用单数, 否则用复数. 如: The poet and writer has come. 那位诗人兼作家来了.(一个人) A hammer and a saw are useful tools. 锤子和锯都是有用的工具. (两样物) 用and连接的成对名词习惯上被看成是一个整体, 如:bread and butter(黄油抹面包), knife and fork(刀叉)等作主语时, 谓语动词用单数。 3. 不定式(短语), 动名词(短语), 或从句作主语时, 谓语动词用单数. 如: Serving the people is my great happiness. 为人民服务是我最大的幸福. When we’ll go o ut for an outing has been decided. 我们什么时候出去郊游已决定了。 4. 用连接的并列主语被each, every 或no修饰时, 谓语动词用单数. Every boy and every girl likes to go swimming. 每个男孩和每个女孩都喜欢去游泳. No teacher and no student was absent from the meeting. 没有老师也没有学生开会缺席. Each man and (each) woman is asked to help. 每个男人和每个女人都被请去帮忙。 5. each of + 复数代词, 谓语动词用单数. 复数代词+each, 谓语动词用单数.如:Each of us has something to say. 我们每个人都有话要说。 6. 若主语中有more than one 或many a/an , 尽管从意义上看是复数, 但它的谓语动词仍用单数。但more+复数名词+than one做主语时, 谓语动词仍用复数. 如: Many a boy likes playing basketball. 许多男生都喜欢打篮球. More than one student was late. 不只一个学生迟到 More persons than one come to help us. 不止一个人来帮助我们。 7. none 做主语时,谓语动词可用单数, 也可用复数; 但在代表不可数的东西时总是看作单数,因而谓语动词要用单数. 如: None of us are (is) perfect. 人无完人。 None of this worries me. 这事一点不使我着急。 8. 名词如: trousers, scissors, clothes, goods, glasses 等作主语时, 谓语动词必须用复数. 如: His clothes are good. 但这些名词前若出现a pair of , 谓语一般用单数.如: A pair of glasses is on the desk. 桌上有一副眼镜。 9. 形复意单名词如:news ; 以ics 结尾的学科名称如: physics, mathematics, economics; 国名如: the United States; 报纸名如: the New Times; 书名如: Arabian Night <天方夜谈>; 以及The United Nations<联合国> 等作主语时, 谓语动词用单数。 10. “a +名词+and a half “, “one and a half + 名词”, “the number of + 名词”等作主语时, 谓语动词要用单数. 如: Only one and a half apples is left on the table.
《高中英语语法大全》(word下载版) 本文件内容丰富，讲解详细，层次分明，重点突出，包括高中英语中非常详尽的知识点、易错点、易混点、常考点等，是高中学生和老师非常实用而而且管用语法大全。适合不同层次的高中学生使用。 《高中英语语法大全》第01章名词 一、概说 名词是表示人、事物、抽象概念等名称的词，如boy 男孩，mother 母亲，news 消息，progress 进步，computer 计算机，Tom 汤姆，Paris 巴黎，Japan 日本，furniture 家具，等。 名词根据其词汇意义，通常分为专有名词和普通名词。专有名词主要指人、地方、组织、机构等的专有的名称，专有名词的第一个字母通常大写，如Mary 玛丽，Mr Green 格林先生，Beijing 北京，等；普通名词通常指人、物、概念等的一般名称。根据普通名词的语法性质，它又可以细为个体名词、物质名词、集合名词和抽象名词四类：个体名词表示人或物的个体，如girl 女孩，pen 钢笔，等；物质名词表示无法分为个体的实物，如wood 木头，meat 肉，等；集合名词表示若干个体组成的集合体，如：family 家庭，crowd 人群，等；抽象名词表示性质、行为、状态、感情等抽象概念，如work 工作，happiness 幸福，等。 二、名词的数 1.名词复数的构成方法 (1)在一般情况下，加词尾 -s： book / books 书 pen / pens 钢笔 face / faces 脸 (2)以 s, x, z, sh, ch 等结尾的名词，通常加词尾 -es： bus / buses 公共汽车 box / boxes 盒子 dish / dishes 盘子 注：有些以 ch 结尾的名词，由于其发音不是 [k] 而是 [tf]，那么其复数形式应加词尾–s，如stomach / stomachs 胃。 (3)以y 结尾的名词，其复数构成要分两种情况：以―辅音字母+y‖结尾的名词，将 y 改为 ies；以―元音字母＋y‖结尾的名词，直接加词尾s： city / cities 城市 boy / boys 男孩 key / keys 钥匙
高中英语语法简单总结： 高中语法难在复杂，要记忆的知识点太多、太杂，我结合高中的语法要求大纲简单总结了我个人认为比较主要的知识点。大体把握思路，知道都有哪些知识点，然后多看、多做题，总结经常错的知识点，其实知识点是有限的，只要多看几遍，多过滤几遍，就会发现漏网之鱼已经很少了。 下文总结了十二个要点： 1、主谓一致 2、时态 3、语态 4、非谓语动词 5、情态动词 6、虚拟语气 7、句子种类 8、名词性从句 9、状语从句 10、定语从句 11、强调句 12、倒装句 当然以上并不是全部要点，还有一些比较基础的，比如：祈使句、省略句、名词等知识点比较简单，在平时做题中自然而然就积累下来了，不需要刻意背诵。 一、主谓一致 主谓一致的关键在于，分条记清楚，不要混淆。 1、以动词不定式短语，动名词短语或从句作主语时，谓语动词一般用单数形式； To study English well is not easy.（动词不定式短语作主语） Reading in the sun is bad for your eyes. （动名词短语作主语）
What he said is very important for us all. （从句作主语） 2、由连接词and或both…and连接起来的主语后面，要用复数形式的谓语动词。但若所连 接的两个词是指同一个人或物时，它后面的谓语就用单数形式。 The writer and artist has come. 由and 连接的并列单数主语前如果分别有no, each, every 或more than a (an)/one,many a (an) 修饰时，其谓语动词要用单数形式。either, neither, each, every 或no+单数名词和由some, any no, every构成的复合不定代词，都作单数看待。 Every student and every teach is in the classroom. Many a boy and many a girl likes it. No boy and no girl likes it. Each of us has a new book. Is everyone here today Somebody is speaking in class. Everything around us is matter 若none of 后面的名词是不可数名词，它的谓语动词就要用单数。若它后面的名词是复数，它的谓语动词用单数或复数都可以。 None of the sugar was left. None of us has (have) been to America. 3、在定语从句里，关系代词that, who, which 等作主语时，其谓语动词的数应与句中先 行词的数一致。（画线为先行词） Those who want to go please write their names on the blackboard. He is one of my friends who are working hard. He is the (only) one of my friends who is working hard. 4、在强调句型中应与被强调部分一致。 It is I who am going to the cinema tonight. It is we who are going to the cinema tonight. 5、如果集体名词指的是整个集体，它的谓语动词用单数形式；如果它指的集体的成员，
高中英语语法归纳总结 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 sueed 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 mon knowledge that ?是常识 (2) It is ＋形容词＋从句 It is natural that?很自然?
高考英语语法知识之It 的用法总结 1．It is + 被强调部分+ that ... 该句型是强调句型。将被强调的部分放在前面，其它部分置于that之后。被强调部分可以是主语，宾语，状语。强调的主语如果是人，that可以由who换用。 如果把这种句型结构划掉后，应该是一个完整无缺的句子。这也是判断强调句型与其它从句的方法。 It was they that (who) cleaned the classroom yesterday. It was in the street that I met her father. 2．It was not until + 被强调部分+ that ... 该句型也是强调句型。主要用于强凋时间状语，译成汉语＂直到．．．才．．．＂，可以说是not ... until ... 的强调形式。 It was not until she took off her dark glasses that I realized she was a famous film star. = Not until she took off her dark glasses did I realize she was a famous film star. = I didn’t realize she was a famous film star until she took off her dark glasses. 3．It is clear ( obvious, true, possible,certain....) that ..... 该句型中it 是形式主语，真正的主语是that 引导的主语从句，常译为＂清楚（显然，真的，肯定．．．）＂是主语从句最常见的一种结构。 It is very clear that he’s round and tall like a tree.= That he’s round and tall like a tree is very clear. 4. It is important ( necessary, right, strange, natural...) that ... 由于主句中的形容词不同，that 后的从句中要用虚拟语气（should + 动词原形），should 可以省去。 It is important that we (should) learn English well. It is necessary that he (should) remember these words. 5. It is said (reported, learned....) that ... 该句型中的it 仍是形式主语，真正主语是that 引导的主语从句。该结构常译为＂据说（据报道，据悉．．．）＂。It is said that he has come to Beijing. 6. It is suggested ( ordered ... ) that ... 主句中的过去分词是表示请求，建议，命令等词时，that后的从句要用虚拟语气（should + 动词原形），should 可以省。常译为＂据建议；有命令．． It is suggested that the meeting ( should ) be put off. It was ordered that we ( should ) arrive there in two hours. 7. It is a pity ( a shame ... ) that ... 该句型中，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 is a pity that such a thing ( should ) happen in your class. It is a pity that he is ill. 8. 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①常用过去时态表示虚拟．②有时也用should + 动词原形，should 不能省。常译为＂是（正是）．．．的时侯．．．＂。 It is time that children should go to bed. = It is time that children went to bed. 9. It is the first ( second ... ) time that ... 该句型中的that 从句不用虚拟语气，而用完成时态。至于用什么完成时态，由主句的谓语动词的时态决定。如果是一般现在时，后面从句用现在完成时态；如果是一般过去时，后面从句则用过去完成时态。该结构中that 可以省去；it有时用this / that 替换．常译为＂这是某人第几次做某事了＂。 It is the first time I have been here. = This is the first time I have been here. 10 It is the +形容词最高级+ 名词+ that + ….. 该句型中的that 从句不用虚拟语气，而用完成时态。至于用什么完成时态，由主句的谓语动词的时态决定。如果是一般现在时，后面从句用现在完成时态；如果是一般过去时，后面从句则用过去完成时态。该结构中that 可以省去；it有时用this / that 替换．常译为＂这是某人做过的最…的事情＂。 This is the best film that I have ever seen . That was the worst song that he had heard . 11. It is .... since ...
人教版必修一各单元知识点总结 Unit One Friendship 一、重点短语 1.go through 经历，经受get through 通过；完成；接通电话 2. set down 记下，放下 3. a series of 一系列 4. on purpose 有目的的 5. in order to 为了 6. at dusk 傍晚，黄昏时刻 7. face to face 面对面 8. fall in love 爱上9. join in 参加（某个活动）；take part in 参加（活动） join 加入（组织，团队，并成为其中一员） 10. calm down 冷静下来11. suffer from 遭受12. be/get tired of…对…感到厌倦 13. be concerned about 关心14. get on/along well with 与…相处融洽15. be good at/do well in 擅长于…16. find it + adj. to do sth. 发现做某事是…17. no longer / not …any longer 不再…18. too much 太多（后接不可数n.）much too 太…(后接adj.)19. not…until 直到…才20. it’s no pleasure doing sth 做…并不开心 21. make sb. sth. 使某人成为…make sb. do sth. 使某人做某事 二、语法----直接引语和间接引语 概念：直接引语：直接引述别人的原话。一般前后要加引号。 间接引语：用自己的话转述别人的话。间接引语在多数情况下可构成宾语从句且不要加引号。 例：Mr. Black said, “ I’m busy.” Mr. Black said that he was busy. 变化规则 （一）陈述句的变化规则 直接引语如果是陈述句，变为间接引语时，用连词that（可省略）引导，从句中的人称、时态、指示代词、时间状语、地点状语都要发生相应的变化。 人称的变化——人称的变化主要是要理解句子的意思 例：1. He said, “ I like it very much.”→He said that he liked it very much. 2. He said to me, “I’v left my book in your room.” →He told me that he had left his book in my room. 时态的变化