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,名词从句又可分为主语从句、宾语从句、表语从句和同位语从句。
主语从句的用法
一. 主语从句在复合句中作主语, 它可以位于句首, 但常见的主语从句多放在句末,句首则用形式主语it。
1.That the earth is round is true.
= It is true that the earth is round.
2. Whether he will come hasn’t been decided.
= It hasn’t been decided whether he will come.
注意: 连词that, whether在从句中不担任句子成分,只起连接作用,不能省略(注:if不可用来引导主语从句）
二. 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 t hat …非常荣幸
It is common knowledge that…是常识
(2) It is＋形容词＋从句(多用should)
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 is ＋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…
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。被强调部分指人是也可用who/whom。例如:
判断:
It is a pity that you didn’t go to see the film.
It doesn’t interest me whether you succeed or not.
It is in the morning that the murder took place.
It is John that broke the window
宾语从句的用法：
句子结构：
主句+ 连接词(引导词) + 宾语从句
连接词:从属连词that, whether, if
连接代词Who, whom, whose, which, what
连接副词where, how, why, when
一. 连词(引导词)
1.当宾语从句是陈述句时(包括肯定句和否定句), 连词由that引导, 因为that
在从句中不作任何成分, 也没有任何具体意思, 因此在口语或非正式文体中常省略。
Jane said (that) she wasn’t late for the m eeting.
2. 当宾语从句是特殊疑问句时, 由特殊疑问词充当连接词, 因为该特殊疑问词(即连接词)在从句中担任一定的句子成分, 具有一定的意义, 所以不可以省略。Do you know what he said just now?
I don’t remember when we arrived
3. 当宾语从句是一般疑问句时,由连词whether或if引导(口语中常用if),因为if/whether翻译成是否,具有一定的意义,所以不能省略。
Lily wanted to know if /whether her grandma liked the handbag .
Let’s see if /whether we can find out some information about that city
注意:
①关联词只能用whether不能用if 表示“是否”的情况如下：
A) 在表语从句和同位语从句中。如：
The question is whether the film is
worth seeing.
The news whether our team has
won the match is unknown.
B) 在主语从句中，只有用it 作形式主语时, whether和if 都能引导主语从句, 否则, 也只能用whether。如:
Whether we shall attend the meeting hasn’t been decided yet.
It hasn’t been decided whether (if) we shall attend the meeting.
C) 在介词之后。(介词往往可以省略) 如:
It all depends (on) whether they will support us.
D) 后面直接跟动词不定式时。如：
He doesn’t know whether to stay or not.
E) 后面紧接or not 时。如：
We didn’t know whether or not
she was ready.
②关联词if, whether均可使用的情况如下：
A) 引导宾语从句。如：
I wonder if (whether) the news is
true or not.
B) 在“be+形容词” 之后。如：
He was not sure whether (if) it is
right or wrong.
宾语从句要注意的几个问题
? 1. 时态呼应
? 2. 否定转移:
? 3. 形式宾语it的使用
注:在think, believe, suppose, expect 等动词之后,宾语从句中谓语的否定常转移到主句的谓语上。
I don’t think he will see you.
I don’t believe he will go.
注:在接复合宾语的句子中( S+Vt+O+Oc), 为了保持句子平衡, 用it 作形式宾语,将从句放于句尾, 常接复合宾语的动词有: make, find, see, hear, feel, think...
I think it necessary that we take plenty of hot water every day.
I think it a pity to waste the food
表语从句的用法
在复合句中用作表语的从句是表语从句, 引导表语从句的关联词与引导主语从句的关联词大致一样,表语从句位于连系动词后,有时用as if引导。其基本结构为:主语+ 系动词+ that从句。
That’s what we should do.
That’s why I want to see you.
1. be, seem, look等动词后均可跟表语从句：
My suggestion is that we should go shopping.
It seems that it is going to rain.
2. as if, because 也可引导表语从句。
It looks as if it’s going to rain.
It was because I got up late.
3. 在非正式文体中,引导表语从句的that可以省略。如:
The trouble is (that) he is ill.
注意:在表语从句中,当reason做主语时, 引导词只能用that,不能用because,如:他迟到的原因是因为他没有赶上早班车。
The reason why he was late was that he didn’t catch the early bus.
同位语从句
同位语从句一般跟在名词fact, news, promise, truth, belief, thought, idea, answer, information, knowledge, doubt, hope, law, opinion, plan, suggestion后面, 用以说明或解释前面的名词.
The news that our team has won the match is true.
His delay is due to the fact that the car went wrong halfway.
注: 1. that 引导同位语从句与that 引导定语从句的区别: 引导同位语从句的that 无实际意义, 不作从句的任何成分, 而引导定语从句的that 从句的某个成分
He told me the news that our team won the match.
He told me the news that was very exciting.
We are interested in the news that some foreigners would visit our school.
We are interested in the news that he told us.
2. 在have no idea 之后常用wh-引导同位语从句.
I have no idea where he has gone.
I have no idea when he did it.
I have no idea what he did.
一复合不定代词 不指明代替任何特定名词或形容词的代词叫不定代词，它们有some, any, much, many 等以及由every-, some-, any-, no-加上-thing, -body, -one构成的复合不定代词。下面我们主要学习有关复合不定代词的内容。 1、复合不定代词的分类 指物：everything, something, anything, nothing 指人：everybody, somebody, anybody, nobody everyone, someone, anyone, no one 2、复合不定代词的用法 1. ◆some-类的复合不定代词一般用于肯定句中。如： There is somebody at the door. ◆any-类的复合不定代词一般用于否定句或疑问句中，表示“某事；某物；某人”；也可用 于肯定句或条件从句中，表示“任何东西；任何人”。如： There isn't anything in the box. Did you see anybody there? If anybody comes here, please ask him to wait. 2. 复合不定代词作主语时，谓语动词常用单数形式。如： Everybody knows he sings well. 3. 复合不定代词若有定语(形容词或不定式)修饰时，定语要放在其后。如： There's nothing new about this. I want something to eat. 【运用】单项选择 1. —Who taught Zhu Zhiwen to sing? —________! He learned singing by himself. A. Everybody B. Somebody C. Nobody 2. There is ________ wrong with my back and it hurts seriously. A. anything B. something C. nothing 3. I always believe that ________ is difficult if we try our best to do it. A. something B. anything C. everything D. nothing 4. —Would you please tell me ________ in today's newspaper? —Sorry, I haven't read it yet.
一、选择题 1．If you _______ someone, you invite them to flight or compete with you in some way. A．encourage B．challenge C．introduce 2．—the water was cold , Wei Qinggang jumped into it to save others. A．Although B．When C．If D．Because 3．________ haburgers are junk food, many children still like them. A．If B．Unless C．Because D．Although 4．I watched the World Cup in a bar last night and I home 1:00 in the morning. A．go; until B．went; until C．didn’t go; until D．won’t go; until 5．You will never get anywhere you set a goal. So whatever we do, we should first have a goal. A．unless B．because C．though 6．Jenny often eats a lot of fruit and vegetables_______she knows they are good for health. A．because B．but C．or 7．Amy is_______ careful that she made_______ mistakes in her last exam. A．so; so few B．such; so little C．so; such few D．such; such little 8．—I’m afraid I can’t finish the job in such a short time. —Don’t worry. Can you do it if you_______ two more hours.? A．give B．are given C．will give D．will be given 9．— Would you please ask Tom to come to my office? —Sure, I will tell you about it as soon as he _______back tomorrow. A．will come B．came C．comes D．is coming 10．--______ will the discussion last? --______ we reach an agreement. A．How long; Not until B．When; Not until C．How long, Until D．When, Until 11．I don’t like science _______it’s difficult. A．but B．so C．because 12．—You look so sleepy. What’s the matter with you , Carmen? —I’ve been working for ten hours. I am__________tired ___________ I want to sleep. A．so ; that B．such; that C．between; and D．neither; nor 13．—If it________tomorrow, I’ll go fishing. — May I go along with you? A．didn’t rain B．won’t rain C．doesn’t rain 14．Joan was walking in the street________ she saw the accident.
条件句从句主句 真实一般现在时一般将来时 情态动词+动原祈使句 非真实 一般过去时 be动词用（were） would/could+动原初中英语――条件状语从句（讲解&练习） Ⅰ条件状语从句的定义 Ⅱ条件状语从句的引导词 1.if引导的条件状语从句：表示在某种条件下某事很可能发生。 If we pay much attention to the earth, we'll have a better world. 如果我们多关爱地球，就会拥有一个更美好的世界 If it rains tomorrow, what shall we do? 如果明天下雨，我们怎么办？ 注意：if还可以引导虚拟条件句，表示不可实现的条件，从句中多用一般过去时或过去完成时。 What would happen if there were no water ? 如果没有水会怎样？ 2.unless引导的条件状语从句，unless的意思是如果不，除非。可与if...not互换。 You will fail in English unless you work hard. 你英语考试会不及格的，除非你更加努力。 3.as /so long as引导的条件状语从句：as /so long as意思是“只要” So long as you're happy,i will be happy. 只要你高兴，我就高兴。 Ⅲ条件状语从句的种类 Ⅳ条件状语从句的时态原则 用法例句 ①主句为一般将来时态，if从句用一般 现在时态（即主将从现）。We will stay at home if it rains tomorrow. 如果明天下雨，我将要呆在家。 ②主句中含有情态动词，if从句用一 般现在时态。If you finish your homework, you can go home now.如果你做完了作业，你现在可以回家了。 ③主句为祈使句，if从句用一般现在 时态。Don’t jump into the river if you feel very hot. 如果你感到很热，不要跳入河里。 ④主句为过去将来时，if从句用一般 过去时态（如果涉及到be动词， 一律都用were）。此时，表达的是和现实相反的推测，用虚拟语 气。If I were you, I wouldn’t do it like that.如果我是你，我就不会那么做的。 If you gave me some money, I would be very happy. 如果你给我一些钱，我就会很高兴的。 二、if 引导的条件状语从句 （1）“if 从句+祈使句”的句子。其实，if 作为一个连词，主句也可以是其他形式的句子。 例如：If you want to go, please let me know. (2)“祈使句 + and (or)+ 陈述句”
2018新人教版八年上册英元法及知点 Unit1 Where did you go on vacation? 【重点法】 不定代：不指名代替任何特定名或形容的代叫做不 定代。 用法注意： 1. some和any +可数名/不可数名。 some 多用于肯定句，any 多用于否定句、疑句和条件从句。有些句中用 some, 不用 any, 者希望得到方肯定回答。 2.由some, any, no, every与body, one, thing构成的复合不定代作主，其用三。 3.不定代若有定修，定要置于其后：如： something interesting 【重点短】 1. buy sth for ab./ buy sb. sth某人某物 2.taste + adj.起来?? 3.nothing...but + V.(原形)除了??之外什么都没有 4. seem + (to be) + adj看起来 5. arrive in +大地方/ arrive at +小地方到达某地 6. decide to do sth.决定做某事 7. try doing sth.做某事/ try to do sth.尽力做某事 8. enjoy doing sth.喜做某事 9. want to do sth.想去做某事 10. start doing sth.开始做某事=begin doing sth. 11. stop doing sth.停止做某事区分：stop to do sth. 停下来去做某事
12. dislike doing sth.不喜做某事 14. so + adj + that +从句如此??以至于?? 16. tell sb. (not) to do sth.告某人（不要）做某事 17. keep doing sth.做某事 18. forget to do sth.忘去做某事 / forget doing sth 忘做某事 【辨析】 1. take a photo/ take photos拍照 quite a few+名复数“ 多?” 2. seem +形容看起来?...You seem happy today. seem + to do sth.似乎 / 好像做某事 I seem to have a cold It seems +从句似乎 .. ?It.seems that no one believe you. seem like ...好像，似乎? It.. seems like a good idea. 3. arrive in +大地点 = get to= reach+地点名“到 达 ......” arrive at +小地点 （注：若后跟地点副 here/there/home,介需省略，如： arrive here; get home） 4. feel like sth感像? feel doing sth.想要做某事 5. wonder（想知道） + 疑（ who, what, why)引的从句。 6. because of +名 / 代 /V-ing because+ 从句 He can ’t take a walk because of the rain. I don ’t buy the shirt because it was too expensive. 7. enough + 名足的? ...
初中英语语法专题（状语从句）讲解 状语从句在复合句中作状语，修饰动词、形容词或副词等。状语从句可以表示时间、条件、原因、地点、目的、结果、让步、方式、比较等意义。 知识梳理：提纲挈领，抓住重点和难点！ 各类状语从句连接词（短语）一览表： 时间 when, while, as, as soon as, since, until, after, before 条件 If, unless 原因 As, because, since 地点 Where 目的 So that, in order that 结果So that, so…that, such…that 让步 though, although, even if, however 方式 As 比较 t han, (not)as…as, 时间状语从句： Whenever he comes, he brings a friend. 他每次来都带个朋友。 条件状语从句： As long as I am alive, I will go on studying. 只要我活着，我就要学习。 原因状语从句： Since we live near the sea, we enjoy nice weather.由于我们住在海边，能享受到好的天气。 地点状语从句： Put it where we can all see it.把它放在我们都能看到的位置。 目的状语从句：
Finish this so that you can start another.把这个做完，你可以开始另一个。 结果状语从句： He was so angry that he couldn't say a word. 他气得说不出话了。 让步状语从句： Though he is in poor health, he works hard.虽然他身体不好，但是他工作很努力。 方式状语从句： Students do as the teachers say.学生们按照老师说的去做。 比较状语从句： The work isn't as easy as I thought.这项工作比我想象得难。 例题解析：举一反三，学的更轻松！ 1. 易混引导词while, when, as的区别： when既可以指"时间点",与瞬间动词连用，也可以指"时间段"，与延续性动词连用 （=while）。如： When he came in, his mother was cooking. When (While) we were at school, we went to the library every day. While表示时间段,因此，while 从句的谓语动词要用延续性动词。如： Please don't talk so loud while others are working. As与when用法相似，但着重强调主句动作与从句动作同时发生，有"随着……"或"一边……一边……"之意。如： As you get older, you get more knowledge.随着年龄的增长，你获得的知识就越多。 2．Because,as,since 的区别： Because用于表示直接原因,回答why提出的问题，语气最强；As用于说明原因, 着重点在主句，常译成"由于"；since表示显然的或已知的理由或事实，常译成"既然"。如： Water is very important because we can't live without it. He didn't come yesterday as his mother was ill. I'll do it for you since you are busy.
人教版小学英语语法整理大全（上） 第一章名词 一、定义：名词是表示人或事物名称的词。它既可以表示具体的东西，也可以是表示抽象的东西。 二、分类 1. 名词可以根据意义分为普通名词和专有名词 如：john is a student.? ?student是普通名词，john是专有名词 普通名词前可以用不定冠词a/an, 定冠词the 或不加冠词，专有名词前一般不加冠词，专有名词的首字母要大写。 2. 普通名词又可以分为个体名词、集体名词、物质名词和抽象名词，其中个体名词与集体名词是可数名词，物质名词和抽象名称是不可数名词。 3. 专有名词：专有名词是表示人名、地名、团体、机构、组织等的专有名词，多为独一无二的事物。 三、名词的数 1、名词分为可数名词和不可数名词。 可数名词——可以数的名词? ?不可数名词——数不清（没有复数） Drink：milk??tea??water??orange??juice??coke??coffee??porridge Food：rice??bread??meat??fish??fruit??cake??dumplings 2、可数名词与不定冠词a(an)连用有数数形式，不可数名词不能与不定冠词a(an)连用，没有复数形式many+可数名词复数??much/a little+不可数名词 some, any , a lot of (lots of) 两者都可以修饰。 3、可数名词可以直接用数词来修饰 不可数名词：数词+量词+of + 名词 对可数名词的数量提问用how many 对不可数名词的数量提问用how much 4、不可数名词的量有以下两种表示方法： 1）some, much ,a little ,a lot of??,a bit of , plenty of 用等表示多少。 ※既可以与可数名词复数，又可以与不可数名词连用的有：plenty of ,some ,a lot of ,lots of??,most of 等。如there is much water in the bottle .瓶中有很多水。 i'll tell you much good news.我要告诉你许多好消息。 we should collect some useful information我们应该收集一些有用的消息。 2）用单位词表示。 用a ... of 表示。 如 a cup of （一杯......），a bottle of （一瓶......） a piece of （一张......），a pair of shoes（一双鞋） 如two cups of tea（两杯茶）,five pieces of paper（五张纸） ※单位词后的动词单复数形式往往取决于单位词的单复数形式；千、百等数词与名词加用，表示复数时，数词仍保持单数，名词变复数。 如two hundred students（200名学生） ten thousand trees（10000棵树） 测试点he caught a lot of fish他抓到了许多鱼（此处为许多条鱼，fish的复数仍为fish或fishes） =he caught a lot of fishes. the paper is about some fresh-water fishes.这篇论文是有关几种淡水鱼的。（此处fish表示不同种类的鱼，加复数词尾-es） 5、可数名词分为单数和复数。 名词单数就是该词本身，在其前面加a或an。 1）单数如a desk（一张桌子）an old desk（一张旧书桌） 2）复数：要表示一个以上概念时，要用名词复数形式
初中英语语法状语从句大全 1.时间状语从句 引导连词有when，while，till，not…until，since， after ,before ,as soon as The bus won’t start until everybody gets on. 公共汽车直到每人都上车为止，才开动。 When he knocked at the door I was cooking. 当他敲门时，我正在煮饭。 Last night before he came back home, his wife had already cooked dinner and waited for 2 hours. 昨天晚上在他回到家之前，他的妻子已经做好晚饭足足等了他两小时之久。 After I went to church, I went shopping. 2. 地点状语从句 地点状语从句通常由where, wherever 引导。 Where there is a will, there is a way. 哪里有志向，哪里就有出路。有志者事竟成。 Where there is a life, there is a hope. 哪里有生命，哪里就有希望。留得青山在，不怕没柴烧。 Wherever you go, whatever you do, I will be right here waiting for you. 不管你去哪里，不管你做什么，我都会在此守侯你。
3.原因状语从句 引导连词有because，as, since。 He didn′t see the film because he had seen it. 他没有看那部电影，因为他已经看过了。 They couldn’t get on the train，for it was too crowed. 比较：because, since, as和for 1) because语势，用来说明人所不知的原因，回答why提出的问题。当原因是显而易见的或已为人们所知，就用as或 since。 I didn't go, because I was afraid. Since /As the weather is so bad, we have to delay our journey. 2) 由because引导的从句如果放在句末，且前面有逗号，则能 够用for来代替。但如果不是说明直接原因，而是多种情况加以推断，就只能用for。 He is absent today, because / for he is ill. He must be ill, for he is absent today.
初中英语语法状语从句专练及答案 1 ( ) 1 The meeting didn't start___ everyone was there. A. because B. until C. why D. if ( ) 2 The boy ___ to bed ___ his mother came in. A. went not; until B. didn't go; after C. went; until D. didn't go; until ( ) 3 I won't believe you___ I have seen it with my own eyes. A. before B. until C. after D. when ( ) 4 He ___ home ___ she was satisfied ___ his answer yesterday. A. didn't go; until; with B. wasn't go; after; to C. doesn't go; before; with D. didn't go; until; to ( ) 5 He ___ back until the work ___ done. A. isn't; will be B. isn't; is C. won't be; will be D. won't be; is ( ) 6 They didn't start the work ___ their teacher came back. A. until B. while C. as soon as D. if 2 ( ) 1 Tom will call me as soon as he ___ Shanghai. A. arrives B. will reach C. arrives in D. get to ( ) 2 I'm sure he'll come to see me before he ___ Beijing. A. will leave B. is leaving C. leave D. leaves ( ) 3 I will tell him the news as soon as he___ back. A. come B. comes C. will come D. came 3 ( ) 1 Tom has got a watch. He ___ it for two years. It _______ by his father. A. has bought; was bought B. has got; is bought , C. was bought; has bought . D. has had; was bought "' ( ) 2 When he got to the station, the train ___. A. left B. had left C. leaves D. has left ( ) 3 The boy told his father what he ___ in the street. A. saw B. have seen C. had seen D. see ( ) 4 We ___ TV when the telephone ____. A. watched; was ringing B. were watching; rang C. watch; rings D. are watching; rang ( ) 5 By the end of last term, I___ ten books. A. had finished reading B. have finish reading
人教版初中八年级上册英语语法汇总 1) leave的用法 1.“leave+地点”表示“离开某地”。例如 When did you leave Shanghai? 你什么时候离开上海的 2.“leave for+地点”表示“动身去某地”。例如 Next Friday, Alice is leaving for London. 下周五爱丽斯要去伦敦了。 3.“leave+地点+for+地点”表示“离开某地去某地”。例如 Why are you leaving Shanghai for Beijing? 你为什么要离开上海去北京 2) 情态 动词should“应该”学会使用 should作为情态动词用常常表示意外、惊奇、不能理解等有“竟会”的意思例如 How should I know? 我怎么知道 Why should you be so late today? 你今天为什么来得这么晚 should有时表示应当做或发生的事例如 We should help each other. 我们应当互相帮助。 我们在使用时要注意以下几点 1. 用于表示“应该”或“不应该”的概念。此时常指长辈教导或责备晚辈。例如 You should be here with clean hands. 你应该把手洗干净了再来。 2. 用于提出意见劝导别人。例如 You should go to the doctor if you feel ill. 如果你感觉不舒服你最好去看医生。 3. 用于表示可能性。should的这一用法是考试中常常出现的考点之一。例如 We should arrive by supper time. 我们在晚饭前就能到了。 She should be here any moment. 她随时都可能来。 3) What...? 与 Which...? 1. what 与 which 都是疑问代词都可以指人或事物但是what仅用来询问职业。如 What is your father? 你父亲是干什么的 该句相当于 What does your father do? What is your father's job? Which 指代的是特定范围内的某一个人。如 ---Which is Peter? 哪个是皮特 ---The boy behind Mary. 玛丽背后的那个男孩。 2. What...?是泛指所指的事物没有范围的限制而 Which...?是特指所指的事物 有范围的限制。如 What color do you like best? 所有颜色 你最喜爱什么颜色 Which color do you like best, blue, green or yellow? 有特定的范围
初中英语语法状语从句讲解专项练习选择合适的连接词，完成下列句子。 spends a lot of money on books______he is not rich. fell into sleep ______she was listening to the music. David at school today ----No. He is at home ______he has a bad cold. , won't have supper ______my mother comes back. to him slowly ______he may understand you better. 6. ______ she doesn't come on Sunday, I'll go fishing by myself. is four years ______I had left that small village. 8. ______the air moves, it is called wind. will go to the park ______it doesn't rain tomorrow. boys did ______much work. are few new words in the passage ______we can't understand it. ? back ______you come from. reached the station ______the train had left. you have a swimming pool ----No, we don't. At least, not ______big ______yours. me your paper ______you have finished it. is raining hard, ______we have to stay at home. 17. ______you work harder, you'll never pass the final exam. after the children ______I am out. ' village is ______far away ______I can't get there on foot. is ______an interesting book ______I can't stop reading it. 能力提高练习 1 ( ) 1 The meeting didn't start___ everyone was there. A. because B. until C. why D. if ( ) 2 The boy ___ to bed ___ his mother came in. A. went not; until B. didn't go; after C. went; until D. didn't go; until ( ) 3 I won't believe you___ I have seen it with my own eyes. A. before B. until C. after D. when ( ) 4 He ___ home ___ she was satisfied ___ his answer yesterday. A. didn't go; until; with B. wasn't go; after; to C. doesn't go; before; with D. didn't go; until; to ( ) 5 He ___ back until the work ___ done. A. isn't; will be B. isn't; is C. won't be; will be D. won't be; is ( ) 6 They didn't start the work ___ their teacher came back. A. until B. while C. as soon as D. if 2 ( ) 1 Tom will call me as soon as he ___ Shanghai. A. arrives B. will reach C. arrives in D. get to ( ) 2 I'm sure he'll come to see me before he ___ Beijing. A. will leave B. is leaving C. leave D. leaves ( ) 3 I will tell him the news as soon as he___ back. A. come B. comes C. will come D. came 3 ( ) 1 Tom has got a watch. He ___ it for two years. It _______ by his father. A. has bought; was bought B. has got; is bought , C. was bought; has bought . D. has had; was bought "' ( ) 2 When he got to the station, the train ___. A. left B. had left C. leaves D. has left
小学英语语法大全 第一章名词 一、定义 名词是表示人或事物名称的词。它既可以表示具体的东西，也可以是表示抽象的东西。 二、分类 1. 名词可以根据意义分为普通名词和专有名词 如：john is a student student是普通名词，john是专有名词 普通名词前可以用不定冠词a/an, 定冠词the 或不加冠词，专有名词前一般不加冠词，专有名词的首字母要大写。 2. 普通名词又可以分为个体名词、集体名词、物质名词和抽象名词，其中个体名词与集体名词是可数名词，物质名词和抽象名称是不可数名词。 3. 专有名词 专有名词是表示人名、地名、团体、机构、组织等的专有名词，多为独一无二的事物。 三、名词的数 1、名词分为可数名词和不可数名词。 可数名词——可以数的名词 不可数名词——数不清（没有复数） drink?milk tea water orange juice coke coffee porridge food?rice bread meat fish fruit cake dumplings 2、可数名词与不定冠词a(an)连用有数数形式，不可数名词不能与不定冠词a(an)连用，没有复数形式 many+可数名词复数 much/a little+不可数名词 some, any , a lot of (lots of) 两者都可以修饰。 3、可数名词可以直接用数词来修饰 不可数名词数词 +量词 +of + 名词 对可数名词的数量提问用how many 对不可数名词的数量提问用 how much 4、不可数名词的量有以下两种表示方法： 1） some, much ,a little ,a lot of ,a bit of , plenty of 用等表示多少。 注意既可以与可数名词复数，又可以与不可数名词连用的有：plenty of ,some ,a lot of ,lots of ,most of 等。 如there is much water in the bottle .瓶中有很多水。
人教版八年级上英语语法总结 八年级上册内容，形容词和副词的比较级和最高级，句子成分，类型，简单句的五种基本句型，宾语从句，各种时态包括一般现在时，现在进行时，一般过去时，一般将来时，情态动词和动词不定式等，具体内容如下： 一、形容词和副词的比较级和最高级 1) 单音节形容词的比较级和最高级形式是在词尾加 -er 和 -est 构成。 great (原级) greater(比较级) greatest(最高级) 2) 以 -e 结尾的单音节形容词的比较级和最高级是在词尾加 -r 和 -st 构成。 wide (原级) wider (比较级) widest (最高级) 3)少数以-y, -er, -ow, -ble结尾的双音节形容词的比较级和最高级是在词尾加 -er 和 -est 构成。 clever(原级) cleverer(比较级) cleverest(最高级) 4) 以 -y 结尾,但 -y 前是辅音字母的形容词的比较级和最高级是把 -y 去掉,加上 -ier 和-est 构成. happy (原形) happier (比较级) happiest (最高级) 5) 以一个辅音字母结尾其前面的元音字母发短元音的形容词的比较级和最高级是双写该辅音字母然后再加 -er和-est。 big (原级) bigger (比较级) biggest (最高级) 6) 双音节和多音节形容词的比较级和最高级需用more 和 most 加在形容词前面来构成。 beautiful (原级)? difficult (原级) more beautiful (比较级) more difficult (比较级) most beautiful (最高级) most difficult (最高级) 形容词比较级的用法: 形容词的比较级用于两个人或事物的比较,其结构形式如下: 主语+谓语(系动词)+ 形容词比较级+than+ 对比成分。也就是, 含有形容词比较级的主句+than+从句。注意从句常常省去意义上和主句相同的部分, 而只剩下对比的成分。形容词最高级的用法: 形容词最高级用于两个以上的人和物进行比较, 其结构形式为: 主语+谓语(系动词)+the+形容词最高级+名词+表示范围的短语或从句。 二、句子成分 1、主语主语表示句子主要说明的人或事物，一般由名词，代词，数词，不定式
初中英语状语从句 【考点直击】 1. 时间状语从句 2. 条件状语从句 3. 原因状语从句 4. 结果状语从句 5. 比较状语从句 6. 目的状语从句 7. 让步状语从句 8. 地点状语从句 【名师点睛】 用来修饰主句中的动词，副词和形容词的从句叫状语从句。根据其含义状语从句可分为时间状语从句，地点状语从句，条件状语从句，原因状语从句，结果状语从句，比较状语从句，目的状语从句，让步状语从句。 1. 时间状语从句 (1)时间状语从句常用when, as, while, before, after, since, till, until, as soon as等连词来引导。例如： It was raining hard when got to school yesterday. While he was doing his homework, the telephone rang. As he walked along the lake, he sang happily. He had learned a little Chinese before he came to China. After he finished middle school, he went to work in a factory. (2)在时间状语从句里，通常不用将来时态，用现在时态表示将来的动作或状态。例如： I’ll ring you up as soon as I get to New York. I will tell him everything when he comes back. He won’t believe it until he sees it with his own eyes. (3)在带有till或until引导的时间状语从句的主从复合句里，如果主句用肯定式，其含义是“一直到……时”，谓语动词只能用延续性动词。如果主句用否定式，其含义是“直到……才……”, “在……以前不……”, 谓语动词可用瞬间动词。例如：The young man read till the light went out. Let’s wait until the rain stops. We won’t start until Bob comes. Don’t get off until the bus stops. 2. 条件状语从句 (1)条件状语从句通常由if, unless引导。例如： What shall we do if it snows tomorrow? Don’t lea ve the building unless I tell you to. (2)在条件状语从句里，谓语动词通常用现在时态表示将来的动作或状态。例如： I’ll help you with your English if am free tomorrow. He won’t be late unless he is ill. (3)“祈使句+ and (or)+ 陈述句”在意思上相当于一个带有条件状语从句的复合句。例如： Hurry up, or you’ll be late. =If you don’t hurry up, you’ll be late. Study hard and you will pass the exam. =If you study hard, you will pass the exam. 3. 原因状语从句 (1)原因状语从句通常由because, since, as引导。例如： He didn’t come to school because he was ill. As it is raining, we shall not go the zoo. Since you can’t answer the question, I’ll ask someone else. (2)because表示直接原因，语气最强。Because引导的原因状语从句多放在主句之后。回答由why提出的问题，只能用because。