一、定语从考点
1.which引导的代表整个主句内容的非限制性定语从句which引导非限制性定语从句时可代表主句内容，前面有逗号与主句隔开。
例句：The CCTV’s _ Entertainment Party was successfullyheld on the evening of February 13th，_， which wasanother great encouragement to all the Chinese.中央电视台_年春节文娱晚会于_年2月13日晚成功举行，这对全体中国人民来说又是一个巨大的鼓舞。
2.特定词汇+of whom ，which引导的非限制性定语从句介词(包括复杂介词)，数词(包括数量代词)及其它含局部与整体关系的特定词~E+of whom(指人)/which(指物)可以引导非限制性定语从句，此时前面不可加and，but等连词，该结构也可改为of whom /which+特定词汇引导定语从句。
例句：Our English teacher has three daughters，all of whom /ofwhom all are considerate.
我们的英语老师有三个女儿，个个都很善解人意
3.由when.where引导的先行词隐蔽度比较高的定语从句历年的高考考查实践表明，增加定语从句难度的手段之一是增加先行词的隐蔽度，如用point，case，situation等抽象的地点名词做先行词，当其在定语从句中做地点状语时用where引导定语从句的判断难度会增加，用occasion，period等表示抽象时间的名词做先行词，当其在定语从句中做时间状语时用when引导定语从句的判别难度也会增加。
例句：I’m sorry that I can’t think out a situation where thiskind of deion is used.
对不起我想不出这种描绘被使用的场合。
二、名词性从句考点
1.what引导的名词性从句
what可引导名词性从句，表示“. ·-的内容(人、时间、地点、价格、速度、方式等)”。The Great Wall of China is what I most want to visit.长城是我最想参观的地方。
2. that引导的同位语从句
that可引导同位语从句，说明被修饰名词的内容。
例句：Word hascome that the sports meeting will be put of.
有消息说运动会将被推迟。
3.whatever.whoever引导的名词性从句 whatever和whoever可引导名词Jl生从句，前者表示“无论什么 ，后者表示“不管谁 。
例句：You can give the book to whoever you think needs it.
你可以把这本书给任何你认为需要这本书的人。
4.whether,if引导的名词性从句
if只可引导宾语从句且不能和or not连用。whether可引导各种名词性从句且可和or not连用。
例句：When shall we discuss the question whether we will havea picnic next week?
我们什么时候讨论下周是否搞一次野餐的问题?
三、状语从句考点
1.where引导的地点状语从句
where可引导地点状语从句，表示“在..的地方 。0ur school lies where there is a small river.我们学校位于有一条小河的地方。
2.before引导的时间状语从句
before引导时间状语从句时可表示“在..之前，尚未来得及，趁 。
例句：Thenaughty boy had run away before I could call him tostop.
我还没有来得及叫住他，这个调皮男孩就跑开了。
3.unless.as/so long as引导的条件状语从句
unless，as/so long as可弓I导条件状语从句，前者表示。除非 ，后者表示“只要 。
例句：As/So long as you treat them truly，you can win overtheir respect.
只要你真诚地对待他们，你会赢得他们的尊敬。
4 . so that.in case引导的目的状语从句
so that，in ease可引导目的状语从旬，前者表示“以便”，后者表示“以免 。
例句：Please close all the doors and windows in ease it willrain.
请关上所有门窗，以防天会下雨。
5.while引导的让步状语从句
while可引导让步状语从句，表示“尽管”。
例句：While this problem is very difficult，it is very important.
尽管这道题很难，却很重要。
四、情态动词考点
1.推测性情态动词用法
may(可许，可能)，might(可许，可能)，must(一定，必定)，can(或许，可能)均有推测性用法，其中might可能性最小，must可能性最大。may，might，must常用于肯定句，may，might用于否定句可表示“可能不 ，can常用于否定句和疑问句，用于否定句表示 不可能 。
例句：— — Can the man standing there be OUY physics teacher?
— — No.he can’t be our physics teacher.
— — 站在那边的那个人可能是我们的物理老师吗?
— — 不，不可能。
— — W i11 she buy you a birthday present?
— — 她会给你买生日礼物吗
— — She may not.but I’m no so surf~.
— — 可能不会，但我不太有把握。
2.should的用法
should常表示“应该”，但可置于句首用于条件状语从句(省去if)，表示。万一 ，还可表示 竟然
例句：Should you see the thiel,try to catch him.如果你见到小偷，尽量捉住他。
I can’t imagine such a beautiful girl should be SO lazy.
我无法想像这样一个漂亮的女孩竟如此懒惰。
3.may，must，earl’t，should (shouldn’t)，ought to(oughtn’tto).needn’t的完成式用法mav have done表示“可能已经做了某事 ，must have done表示“一定已经做了某事”，can’t have done表示“不可能已经做了某事”，should/ought to have done表示“本来应该做某事但实际未做 ，shouldn’t/oughtn’t to have done表示 本来不应该做某事但实际已做”，Ileedn’t have done表示“本来没有必要做某事但实际已做”。
例句：Our Chinese teacher isn’t in her offlee，so she may /might/must have gone home.
我们的语文老师不在办公室，所以她可能/-～定回家了。
I saw his book ust now，so he can’t have lost it.
我刚才还见到了他的书，所以他不可能弄丢了这本书。
You failed the exam again.SO you should/ought to haveprepared for it.
你考试又失败了，所以你本来是应该为此做好准备的。
Thereare many mistakes in your article，SO you shouldn’t/oughtn’t have been SO careless.
你的文章中有许多错误，所以你本来是不应该这么粗心的。
The exam tum ed out to be SO easy,so you needn’t aveworried about it.
这次考试结果证明这么容易，所以你本来是没有必要为此而担心的。
五、倒装句型考点
1.完全倒装句型考点
地点状语置于句首时需要使用完全倒装句型，将动词直接提前。
例句：At the back of our school stands a high tower.
我们学校后面矗立着一座高塔。
SO(肯定句中表示“也”)，neither，IOF(否定旬中表示“也”)，80.that. (引导结果状语从句)j only(不修饰主句)，no[only.but also. (不连接主语，连接两个分旬时第一个分旬倒装，第二个分句不倒装)，not until，Never，hardly，little，hardly.when.， SO SO01qe/"than，not a，nowhere，in no ease等词或短语置于句首时应使用不完全倒装句型。
例句：Only then did we realize the harm of pollution.
只有在那时我们才意识到污染的危害。
Not until early the next morning did we know the truth ofthe matter.
直到第二天一大早我们才知道了事情的真相。
Not only does she work hard but also she is very honest.
她不但工作很认真，而且人也很诚实。
2.as引导的特殊倒装句型
as引导让步状语从句时可将表语、动词、副词提前，将as紧随其后。如果表语为单数可数名词，提前时应去掉不定冠词。
例句：Weak as she was，she still went on working.
尽管她身体虚弱，仍继续工作。
Child as he is，he has rich knowledge. 尽管他还是一个小孩，却有丰富的知识。
六、虚拟语气考点
1.与过去事实相反的if虚拟条件状语从句与过去事实相反时，从句动词用had done，主句动词用would，could，should，might have done，当从句动词含有were，had，could，should时可将其提至句首将if省略。
例句：Had I known it at that time，I would have told you.
如果那时我知道这件事一定告诉了你。
2.混合虚拟条件从句
如果if虚拟条件状语主从句时态不一致，应根据各自所体现的时间关系加以适当的调整，采用不同的动词形式。
例句：If she had told me her telephone number yesterday，Icould phone her now.
如果她昨天把她的电话号码告诉了我，我现在就可以给她打电话了。
3.with.without.but for引导的含蓄虚拟条件从句with，without，but for可取代if引导含蓄虚拟条件从句。
例句：With your help，I could have made more achievements.
如果得到你的帮助，我一定会取得更多成就。
Without your support. I couldn’t have accomplished mytask SO smoothly.
没有你的支持我不可能如此顺利地完成任务。
But for the information.I couldn’t have made such agood plan.
要不是这个信息我不可能制定这么好的计划。
4.wish引导的表示过去主观愿望的宾语从句
wish引导宾语从句时如果表示过去的主观愿望，从句动词应用had done或could have done。
例句：I wish I had /could have watched that basketball matchyesterdayafternoon.
我希望我昨天下午看了那场篮球赛。
5.insist，suggest引导的宾语从句
insist，suggest接宾语从若表示建议应用虚拟语气，动词形式为(should)do，但如果insist表示 坚持认为，固执己见 ，suggest表示。表明、暗示 ，所在宾语从句应用陈述语气。
例句：Thedoctor insisted that the patient was seriously ill and(should)be 0Dcrated 0n at once. 医生坚持认为病人病得很严重，建议其立即做手术。
The dark cloud in the sky suggests that it is going torain，SO I suggest that you (should)get in all the crops.
天上的黑云表明天要下雨了，所以我建议你把所有的庄稼收上来。
七、不定式考点
1.不定式做目的状语
不定式可做目的状语，如果对其强调可将其提至句首，此时应注意人称一致。
为了及时赶到那里，她将自行车骑得很快。
误：T0 get there in time.her bike waS ridden fast.
正：To get there in time.she rode her bike fast.
2.不定式做结果状语
不定式可做结果状语，强调出乎意料的动作，此时前面可加onlyo
例句:I went to see her to find her absent.
我去看她结果发现她不在家。
She hurried to the station to be told the train had left.
她匆忙赶往火车站，结果被告知火车已经开走。
3.不定式的复杂形式
不定式除有一般式外，还有否定式not to do,进行式to bedoing、完成式to have done、被动式to be done、完成被动式tohave beendone等复杂形式。
例句;All the employees worked hard not to be fired.
为了不被解雇，所有的员工努力工作。Mary is said to have come back from abroad. 据说玛丽已经从国外回来。
This book is reported to have been translated into manyforeign languages.
据说这本书已经被译成多国文字。
I’m sure she is sure to be impatiently waiting for US.
我相信她一定在不耐烦地等待我们。
Nobody likes to be scolded in public.
没有人喜欢在公共场合受到别人的责备。
4.不定式独立主格结构
with+名词+不定式可构成独立主格结构做状语，表示未来的动作。
例句：Witha lot of work to do，I can’t help you at present.
因为有许多工作要做，我现在不能帮助你。
八、V—ing形式考点
1.V—ing形式做宾语
excuse. f0r. ，can’t help，suggest，include，insist on，keep on， consider, finish， practice， put off, postpone， delay，miss，avoid，give up，imagine，feel like，enjoy，risk，mind，appreciate，stand，escape等词后面只能接V—ing形式做宾语。remember 得曾做某事)，forget(忘了曾做某事)，mean(意谓着)，try(尝试)，regret (后悔)，go on (继续做同一件事)，stop(停止做某事)，need(主语需要被..)等词表示括号内的含义时也应接v—ing形式做宾语。
例句：The hare was lucky enough to have avoided being caught.
这只野兔很幸运，错过了被捉住。
She can hardly stand being treated SO unfairly.她几乎忍受不了被如此不公平地对待。
— —Sorry.I took your English—Chinese dictionary bymistake.
— — — — By mistake? I think you meant tO do SO.
— — 对不起，我拿错了你的英汉字典。
— — 拿错了 我认为你是有意这么做的。
2.V—ing形式做定语
V—ing形式做定语可表示被修饰名词的的用途和性质，也可表示正在进行的动作。
例句：The great noise comes from the building being built now.
这巨大的噪音来自正在被建的楼房。
3.V—ing形式做状语
V—ing形式做状语常表示动作正在进行，此时应注意它的逻辑主语为主句主语。
例句：Holding a book in his hand，he came into the room.
他手里拿着一本书走进了房间。
读这本书时，这女孩热泪盈眶。
误：Reading this book，tears came to the girl’s eyes.
误：Reading this book.the girl’s eyes were full of tears.
正：Reading this book.the girl bumt into tears.
4. V—ing形式做宾语补足语
V—ing形式做宾语补足语也表示动作正在进行。
例句：WhenI came to the five~ide.I f0und girl struggling inthe water.
来到河边时我看见一个女孩在水中挣扎。
5. V—ing形式独立主格结构
with+名词+V—ing形式可构成独立主格结构做状语，表示正在进行的动作。
例句：With the water still rising，the villages couldn’t return totheir village.
因为水位还在上涨，村民们无法回到村里。
6.V—ing形式复杂形式
V—ing形式除有一般式外还有完成式having done，被动式being done，完成被动式having been done，否定式not doing，完成否定式not having done，完成被动式的否定式not havingbeen done。
例句：Havingsaid goodbye to each other， the children wenthome.
彼此说了再见之后，孩子们回家了。
When 1entered their office，I found the meeting beingheld.
当我进入他们的办公室时，我发现这次会议正在被举行。
Having been put on many times，the film became verypopular.
被放映多次之后，这场电影变得非常走俏。
Not having been elected a model teacher， the youngwoman felt very disappointed.
没有被选为模范教师，这个年轻女子感到非常失望。
九、过去分词考点猜想
1.过去分词做状语
过去分词做状语常表示被动的动作，也可因来自系表结构而表示主动的动作。
例句：Caught in a heavy rain，the girl was all wet.
因为被浇了一场大雨，这女孩浑身湿透了。
Dressed in a newly bought skirt，the young woman lookedmore charming.
因为穿着一条新买的裙子，这个年轻女子看起来更妩媚了。
2.过去分词独立主格结构
with+名词+过去分词可构成独立主格结构做状语，表示被动的动作。
例句：With his homework finished， the boy went out to getrelaxed.
因为家庭作业完成了，这个男孩出去放松了一下。
句型1
would rather that somebody did…"宁愿……;更愿意……"(表示现在或将来的愿望)would rather that somebody had done…"宁愿……;更愿意……"(表示过去的愿望)
[例句]
I'd rather you posted the letter right now. 我想让你现在去寄信。
I'd rather you were not a celebrated actor. In that case, we could spend more time together.
我到情愿你不是个知名演员，这样我们可以有更多的时间在一起。
I'd rather that I hadn't seen her yesterday. 我情愿昨天没有看到她。
句型2
as if/though+主语+did/had done…好像……(表示现在或将来的情况用过去时;表示过去的情况用过去完成时)[参考句型4]
[例句]
Our head teacher treats us as if we were her own children, so all the students in our class think highly of her.
Alan talked about Rome as if he had been there. Alan谈起罗马来就好像他去过那里似的。
句型3
"wish +宾语从句"，表示不大 可能实现的愿望
表示现在的愿望：主语+过去时;
表示过去的愿望：主语+had done;
表示将来的愿望：主语+would/could do
[例句]
How I wish we students had more free time to relax ourselves! 我们学生多么希望有更多的自由时间放松自己!
I failed in the maths exam. How I wish I hadn't wasted so much time playing!What a pity you can't go to the party. How I wish I could dance with you at the party!
句型4
It's high/about time that somebody did (should do) (should通常不省略) …早就该……[例句]
It's time that you went to school.= It's time that you should go to school.
It's high time that we did something to improve our environment. 该是我们为环保做些事情了。
I think it's high time that she made up her mind. 我想她该拿定主意了。
句型5
情态动词+动词不定式完成结构的用法
could have done "本来可以……"(表示过去没有实现的可能)。
might have done "本来可能……;本来应该或可以做某事"(实际没有发生;含有轻微的责备语气。
should/ought to have done "本来该做某事"(而实际未做)
should not/ought not to have done "本来不该做"(实际却做过了，含有责备语气)needn't have done "本来不必做"(但是已经做过了)
would rather have done "当时宁愿做了某事"(实际没有做过);否定式would rather not have done表达相反意思，两者都有表示"后悔"之意。
句型6
as, though, although引导的让步状语从句。
[注意]
although位于句首;
though位于句首或句中;
as位于句中=though。
它的词序是把句中强调的形容词、副词、动词或名词放在连词前。
[考倒装结构] 请注意下列句式的变化：
[例句]
1. Although/Though I'm young, I already know what career I want to follow.→Young as/though I am, I already know what career I want to follow.
我虽然年轻，但我已经明白我应该追随什么样的事业。
2. Although/Though I respect him very much, I cannot agree with his idea.→Much as/though I respect him, I cannot agree with his idea. 虽然我很尊重他，但是我不同意他的观点。
3. Although/Though he is a child, he knows a lot of Chinese characters.
→Child(省略冠词)as/though he is, he knows a lot of Chinese characters. 他虽然还是个孩子，却认识了许多汉字。
4. Although he tried, he couldn't solve the problem.
→Try as he might, he couldn't solve the problem. 尽管他努力了，但是他没有解决问题。
5. Although it is raining, I'm going out for a walk.
→Raining as it is, I'm going out for a walk. 天虽然在下雨，我还是要出去散步。
6. Strange as it may seem, nobody was injured in the accident. 这次意外虽然显得不可思议，却没有人受伤。
7. Much as I would like to help, I have a lot to do. 虽然我很想帮助你，但是我有很多事要做。
8. Object as you may, I will go. 纵使你反对，我也要去。
句型7
…before…特殊用法(1)"没来得及……就……"
[例句]
The roof fell before he had time to dash into the room to save his baby.
他还没有来得及冲进房间救孩子，房顶就塌了。
He ran off before I could stop him. 我还没有来得及阻止，他已经跑了。
To my great disappointment, my favorite singer left the concert before I could have a word with her.
让我非常失望的是，我还没有来得及和我最喜欢的歌手打招呼，她就已经离开了。
句型8
…before…特殊用法(2)"过了多久才……"或"动作进行到什么程度才……"
[例句]
They walked about fifty miles to the west before they saw a village.
他们西行50英里才看到一个村庄。
The workers worked day and night about three days before everything returned to normal.
工人们连续工作3天才使一切恢复正常。
He almost knocked me down before he knew it.
他几乎撞到我了才意识到。
We had walked a long way before we found some water.
我们走了很长的路才找到一点水。
Five years went by before I knew it. 不知不觉，五年过去了。
句型9
It was + 时间段+before…."过了多久才(怎么样)……"
It was not long before…."不久，就……"
It will (not) be +时间段+before… ."要过多久(不久)……才……"(before从句谓语动词要用一般时态)
[例句]
It was not long before he sensed the danger of the position.不久他就意识到他处境的危险。
It was five days before he came back. 五天后他才回来。
It will be half a year before you graduate from the school. 再过半年你才能毕业。It will not be long before they understand each other. 他们大概不久就会互相了解。句型10
in case of…(+n.) "以防;万一";
in case that…"以防，万一……"(谓语动词用一般现在时态或should+动词原形)
[例句]In case of fire, what should we do?
Please remind me about it in case I forget/should forget. 万一我忘了，请提醒我。In case (that) John comes/should come, please tell him to wait.
Please take your umbrella in case (that it rains/should rain).带上雨伞，以防下雨。
1、情态动词与助动词
1、can能，可以，表说话人同意，许可还可表客观条件许可，如:You can go now.
提建议或请求时可用can I, can you表客气，如Can I buy you a drink?
can和be able to表能力时的区别。
can表一般具有的能力，be able to表在特定条件下的能力，如:Although the driver was badly hurt,he wasable to explain what had happened.
2、may
(1)可以，表说话人同意，许可或请求对方许可。You may go.
(2)(现在和将来)可能，也许，只用于肯定句和否定句中，如He may not be right.
3、must,have to
must表主观上的必须，have to表客观上的必须，如:It's getting late. I have to go. -Must I go now.-Yes,you must.(No, you needn't./ No, you don't have to.)
4、need,dare这二词有实意动词和情态动词两种词性，如用作实意动词后接动词不定式to do，如用作情态动词后接动词原形。Need I go now? --Yes, you must./No, you needn't.)
5、shall用于第一人称疑问句中表说话人征求对方的意见或向对方请求，如，Shall we begin our lesson?用于二、三人称陈述句，表说话人命令、警告、允诺、威胁等口吻，如: You shall fail if you don't workharder.
6、should表应该，意为有责任，有义务。如:We should try our best to make our country more beautiful.
7、will表有做某事的意志、意愿、安心、打算，如"Will you lend me your book?" "Yes, I will."
8、should have done表应该做而未做
must have done表对过去事实的肯定推测
could have done表本可以做某事
9、判断句：肯定句用must,否定句用can't,不太肯定用may,might
He must be in the office now.
He must have gone to bed, for the light is out.
He can't be in the office. He is at home.
He couldn't have cleaned the classroom, because he didn't come here today.
He might be in the office, I am not sure.
He might have cleaned the room, I suppose.
2让步状语从句1、though,although,as的区别
A、Though,although的主句中可以用yet, still, nevertheless,但不可使用but。
B、though引导的从句可以倒装，也可以不倒装;as引导的从句必须倒装;although引导的从句不能倒装。其结构为：形容词/分词/副词/动词原形/名词(无冠词)+as/though+主语+谓语……
2、though可用作副词，放在句末，意为“不过，但是”。Although无此用法。
3、某些短语也引导让步的从句或短语，意为“尽管”，如：in spite of the fact that, despite the fact that,regardless of(the fact that)
句子种类
1、陈述句的否定
(1)在含有宾语从句的主从复合句中，当主句的谓语动词是think, expect, believe, suppose, guess, fancy,imagine等，且主句主语是第一人称时，宾语从句谓语的否定习惯上要移到主句谓语上，如: I don't think he is right.
(2)含有否定意义的副词never, seldom, hardly, scarcely, rarely, barely的句子应视为否定句，如: I have never been there before.
2、反意疑问句
(1)need和dare既可作情态动词，又可作实意动词，在反问部分须加以区别，如We needn't leave, need we? We don't need to leave, do we?
(2)陈述部分出现否定意义的副词或代词如never, seldom, few, hardly, little等时，反问部分须用肯定形式，如：He seldom comes, does he?
(3)陈述部分用不定代词作主语时，反问部分的主语用it，如：Nothing can stop me, can it?
陈述部分用everybody, everyone, somebody, someone，等作主语时，反问部分常用it，有时也用they，如:Everybody knows that, don't they?
(4)陈述部分包括used to时，反问部分可有两种形式，如: You used to get up early, usedn't (didn't) you?
(5)陈述部分是"there + be"结构时，反问部分用there，如:There's something wrong with you, isn't there?
(6)陈述部分是含有宾语从句的主从复合句时，反问部分的主语和谓语应和主句保持一致，如: He never told others what he thought, did he?
但，如果是I think , I believe等+宾语从句时，反问部分须和从句的动词保持一致，如，I don't think he is right, is he? I don't believe he does that, does he?
3、感叹句
用what或how,
What a beautiful park it is.
How beautiful a park it is.
How beautiful the park is.
How we worked!
4、祈使句
Take care!
Don't stand there.
Please open the door for the old lady.
3不定式的构成1、不定式的一般式：不定式的一般式所表示的动作通常与主要谓语的动作同时或几乎同时发生，或是在它之后发生。
如：They invited us to go there this summer.他们邀请我们今年夏天去那儿。He stood aside for me to pass.他站到一边让我通过。
2、不定式的完成式：不定式的完成式所表示的动作在谓语所表示的动作之后发生，它在句中可作表语、状语、宾语，有时也可作主语、定语等。
如：She seemed to have heard about this matter.她似乎已听说过这件事。
I am sorry to have kept you waiting so long.我很抱歉让你等了这么久。
I meant to have told you about it,but I happened to have an important thing to do.我本来想告诉你这件事的，但我碰巧有一件重要的事要做。
It has been an honor for me to have traveled so much in your country.对我来说，在你们国家旅行这么多地方是一件很荣幸的事情。
3、不定式的进行式：不定式的进行式表示正在进行的与谓语动词同时发生的动作。它在句中可以用作除谓语以外的所有成分。
如：It’s nice of you to be helping us these days.你真好，这些天一直帮我们。
He pretended to be listening to the teacher carefully.他假装在认真地听老师讲课。We didn’t expect you to be waiting for us here.我们没料到你一直在这儿等我们。
4、不定式的完成进行式：如果不定式表示的.动作是谓语所表示
5、动词不定式的否定形式是由not或never加不定式构成。如：Try not to be late again next time.尽量下次不要再迟到。He wished us never to meet her again.他希望我们永远不要再见到她。
6、疑问词+动词不定式：不定式和疑问词whether,what,which,whom,where,when,how,why等连用可以在句中起名词的作用，通常跟在tell,know,show,decide,learn,wonder,explain,advise,teach,discuss,find out等动词后面作宾语，有时也可以充当主语、表语等。
如：On hearing the news,he didn't know whether to laugh or to cry.听到这个消息，他不知道该哭还是该笑。
When to hold the meeting has not decided.什么时候开会还没有决定。
The most important problem is how to get so much money.最重要的事情是如何搞到这么多钱。
介词后一般不直接接不定式，但可以接疑问词+不定式短语作宾语。
如：Mary gave some advice on how to learn English.玛丽提了一些如何学习英语的建议。
I have no idea of how to do it.我不知道该怎么做。
一、不定冠词的用法
冠词是虚词，本身不能单独使用，也没有词义，它用在名词的前面，帮助指明名词的含义。英语中的冠词有三种，一种是定冠词(the Definite Article)，另一种是不定冠词(the Indefinite Article)，还有一种是零冠词(Zero Article)。
不定冠词a (an)与数词one 同源，是"一个"的意思。a用于辅音音素前，一般读作[e]，而an则用于元音音素前，一般读做[en]。
1) 表示"一个"，意为one;指某人或某物，意为a certain。
A Mr. Ling is waiting for you.
2) 代表一类人或物。
A knife is a tool for cutting with. Mr. Smith is an engineer.
3) 词组或成语。
a little / a few / a lot / a type of / a pile / a great many / many a / as a rule / in a hurry / in a minute / in a word / in a short while / have a cold / have a try / keep an eye on / all of a sudden
二、定冠词的用法
定冠词the与指示代词this，that同源，有"那(这)个"的意思，但较弱，可以和一个名词连用，来表示某个或某些特定的人或东西。
1)特指双方都明白的人或物： Take the medicine. 把药吃了。
2)上文提到过的人或事： He bought a house. I've been to the house. 他买了幢房子。我去过那幢房子。
3)指世上独一物二的事物： the sun， the sky， the moon， the earth
4)单数名词连用表示一类事物，如：the dollar 美元;the fox 狐狸;或与形容词或分词连用，表示一类人：the rich 富人
5)用在序数词和形容词最高级，及形容词only， very， same等前面：
Where do you live? I live on the second floor. That's the very thing I've been looking for.
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，不定式等充当。
He likes watching TV.他喜欢看电视。
2、谓语
谓语说明主语的动作，状态或特征。
一般可分为两类：
1)，简单谓语
由动词(或短语动词)构成。
可以有不同的时态，语态和语气。
We study for the people.我们为人民学习。
2)，复合谓语：情态动词+不定式
I can speak a little English .我可以说一点英语。
3、表语
表语是谓语的一部分，它位于系动词如be之后，说明主语身份，特征，属性或状态。一般由名词，代词，形容词，副词，不定式，介词短语等充当。
Mysisterisanurse.我姐姐是护士。
4、宾语
宾语表示动作行为的对象，跟在及物动词之后，能作宾语的有名词，代词，数词，动词不定式等。
WelikeEnglish.我们喜欢英语。
有些及物动词可以带两个宾语，往往一个指人，一个指物，指人的.叫间接宾语，指物的叫直接宾语。
Hegavemesomeink.他给了我一点墨水。
有些及物动词的宾语后面还需要有一个补足语，意思才完整，宾语和它的补足语构成复合宾语。如：
Wemakehimourmonitor.我们选他当班长。
5、定语
在句中修饰名词或代词的成分叫定语。
用作定语的主要是形容词，代词，数词，名词，副词，动词不定式，介词短语等。形容词，代词，数词，名词等作定语时，通常放在被修饰的词前面。
Heisanewstudent.他是个新生。
但副词，动词不定式，介词短语等作定语时，则放在被修饰的词之后。
Thebikeintheroomismine.房间里的自行车是我的。
6、状语
修饰动词，形容词，副词以及全句的句子成分，叫做状语。用作状语的通常是副词，介词短语，不定式和从句等。状语一般放在被修饰的词之后或放在句尾。副词作状语时可放在被修饰的词前或句首。
HelivesinLondon.他住在伦敦。