⑴ 高中英语必修3语法
情态动词
情态动词表推测的三种句式
1.在肯定句中一般用 (一定)，may（可能），might /can, could（也许，或许）。 （1）He must/may/might know the answer to this question? 他一定/可能/也许知道这个问题的答案。
2.否定句中用can’t / couldn’t(不可能), may not/might not(可能不)。 （1）It can’t/couldn’t be the headmaster. He has gone to America. 这不可能是校长，他去美国了。 3.疑问句中用can/could (能……?)。 （1）Could he have finished the task? 他可能把任务完成了吗？ （2）Can he be at home now? 他现在能在家吗？
注：以上三种句式中情态动词的语气按程度都是依次递减的。Might, could并非may, can的过去式，而表示语气较为委婉或可能性较小。
（二）情态动词表推测的三种时态
1.对将来情况的推测，用“情态动词 + 动词原形”。
（1）She must / may / might / could arrive before 5. 5:00前她一定/可能/也许到。
2.对现在或一般情况的推测，用“情态动词 + be”，“情态动词 +be doing”或“情态动词 + 动词原形”。 （1）He must / may / might / could be listening to the radio now. 他一定/可能/也许正在听收音机。
注：情态动词 should /ought to表推测时，意为“想必会，理应……”但与“have +过去分词”连用时，则又可构成虚拟语气意为“本应该做某事却没做”。例如： （4）It’s seven o’clock. Jack should/ought to be here at any moment. 现在七点钟了，杰克理应随时到达。（推测） （5）She should / ought to have attended your birthday party, but she had to look after her mother in hospital. （虚拟） 她本该出席你的生日晚会的，可是她得在医院照顾她妈妈。 （6）Tom should not /ought not to have told me your secret, but he meant no harm. （虚拟） 汤姆本不该告诉我你的秘密，可是他并无恶意。
助动词(auxiliary)主要有两类：基本助动词(primary auxiliary)和情态助动词(modal auxiliary)。基本助动词有三个：do, have和be；情态助动词基本的有十四个：may, might; can, could; will, would; shall, should; must, need, dare, used to, ought to.had better 上述两类助动词的共同特征是，在协助主动词构成限定动词词组
名词性从句
主语从句
作句子主语的从句叫主语从句。主语从句通常由从属连词that，whether，if和连接代词what，who，which，whatever，whoever以及连接副词how，when，where，why等词引导。that在句中无词义，只起连接作用；连接代词和连接副词在句中既保留自己的疑问含义、又起连接作用，在从句中充当从句的成分。
宾语从句
名词从句用作宾语的从句叫宾语从句。引导宾语从句的关联词与引导主语从句表语从句的关联词大致一样，在句中可以作谓语动词或介词及非谓语动词的宾语。
表语从句
在句中作表语的从句叫表语从句。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。例如： The fact is that we have lost the game. 事实是我们已经输了这场比赛。 That’s just what I want. 这正是我想要的。
【注意】whether 可引导表语从句，但与之同义的if却通常不用于引导表语从句。
同位语从句
同位语从句说明其前面的名词的具体内容。同位语从句通常由that引导，可用于同位语从句的名词有advice、demand、doubt、fact、hope、idea、information、message、news、order、problem、promise、question、request、suggestion、truth、wish、word等。
⑵ 高中英语情态动词讲解
情态动词讲解 一can 1.表"能力"I can lift the stone. I can speak English while he can't. Who can play the violin? He got up early yesterday so that he could catch the early bus.
could 表过去的能力。
注；1。can 与be able to表能力时的区别：
① 形式上；can有两种形式can 与could，而be able to有更多的形式。
is(are)able to, was able to ,, has been able , will be able to , would be able to 等。
be able to 只表能力而can 还可表"可能性"，"惊异","许可"等。
② could与was able to表过去能力的差别：均表过去的能力，但was（were）able to还可表业已成功的行为（即：动作确实做了）。
2．表"许可"You can go now. You can use my dictionary. You can have a rest.
-Can I smoke here?
-No, you can't.
注：用could代替can在疑问句中，语气客气委婉，但在时间上还指现在.Could you lend me your bike? Could you tell me how to get to the station?
注意：回答由could引起的问句，仍用can 而不用could。
-Could you wait a few more minutes?
-Yes, I can.
3.表猜测"可能"，一般用于疑问句和否定句。
-Can the news be true? -It can't be true. Where can he be?
注：(1)can't表"不可能"，语气断然否定。
(2) could在宾语从句中表过去的可能性，其它情况一般还表示现在的可能性只是语气比can委婉和更加不肯定。 I thought he could come .
(3) can 亦可用于肯定句表可能，但表示的是逻辑推理上的可能性（或理论上的），非主观臆断。There can be no noise on the moon because of sound being carried by the air .
(4) can(could)…have done或can(could)…have been(done)用于疑问句或疑问句表对过去时或完成时的揣测。
What can have happened to him ? He can not have read the book. He can't have been to Beijing.
4.表"惊异""惊讶"：How can you be so impolite? How can you say that?
二. may 表"允许""许可""允诺"（征询对方许可）。
You may go now . May I use your bike? You may keep the book for 2 weeks .
注意：(1)其否定形式may not表示不可以，但更常用must not来代替may not表示"不可以"，"禁止"。 -May I watch TV after supper?
-Yes, you may.(No, you mustn't .或No, you may not.或No, you'd better not.)(2)与can的比较：may比can更正式。May I know your name? May I (he, we…)….?
×May you….? (May you have a good journey! 此处表祝愿)
（3）。might代替may用于疑问句，更客气礼貌些，回答时仍用may。
-Might I use your telephone? -Yes, you may .
(4)might not 不表示"不允许"
2．表"可能"。（1）用于肯定句和否定句（因为May I…?表征询许可）。
The news may be true . He may not be at home now. I think he may come today(tomorrow).
However fast you may run, you can't catch the fast train.
(2)用might语气更加不肯定，但指现在或将来，只有在宾语从句中might do（be）才表示过去可能性。 He might come today(tomorrow). She might have some fever .
I thought you might like something to read, so I brought some books for you .
She said she might not be at home.. I might be busy tomorrow.
(3)may not 与cannot的区别： may not"可能不"，cannot "不可能"。
比较The news may not be true.
The news can't be true .
(4) may(might)(not)+have done(been)表对过去或完成时的揣测。
Something may have happened to him . He may have been to Beijing .
3.表祝愿May you be happy! May you have a pleasant journey!
综合性补充；（1）could have done和might have done 还可以用于虚拟语气而can(may)have done 只用于揣测。
（2）表揣测用于反意问句的情况。
三must （无词形变化）
（1）。表"必须"，"应该"，"务必" must not(mustn't)表"禁止"，"不许"，"不准"，"不可以"。 Everyone must attend the lecture. The work must be finished as soon as possible.
You mustn't lend it to others.
注；对must问句的回答。 -Must I go there now?
-Yes, you must.
-No ,you ①needn't. ②need not ③don't have(got) to ④don't need to.
2.must表推测"一定"，"必定"，一般只用于肯定句，亦即用于疑问句和否定不表揣测。
（1）对现在He must be at home now. You must be hungry after the long walk.
The Chinese language must have the largest number of speakers.
(2)对进行时。 He must be sleeping now(at that time).
（3）对过去时或完成时。
It must have rained last night. He must have fallen asleep(then).
He must have gone to Beijing yesterday. She must have been young when she got married .
注意其反意问句。
3 .must表不可避免的倾向。 All men must die.
4 . must 表"偏偏"，"不巧" My car must break down.我的车偏偏坏了。
四.have to "不得不"
1. 与must的区别 （1）must表说话人的主观看法，而have to表客观需要。
比较：I have to stop smoking .(外界压力，客观情况使然)
I must stop smoking.（主观认为）
2.must只有一种形式而have to有更多的形式have to, has to ,had to ,will have to 等等。
I thought I must go there.
3.have to 的疑问，否定均须借助于do。 Does he have to go there now ?
不说Has he to go there now?
He has to go there now ,doesn't he? The work has to be finished before 10 o'clock..
4.must与had to的差别： had to还可以表示业已完成或实现的动作（即；动作确实做了）。
I had to stay at home last night.
五.ought to与should
1.两者的差别ought to语气重，偏重"责任，义务，道德、法律"等方面，"总应该"。
You ought to follow your father's advice.
注意其疑问及否定形式 -Ought he to go ？-Yes, he ought (to).
2. ought to (should)have done 表本应该做而实际未做。
You ought to have told him about the news . He shouldn't have been told about the news.
本不应该把此事告诉他（而实际告诉了）。
You should have got up early .
should have done 还可表虚拟语气
用于第一人称
3. ought to还可表示非常有可能的事。
It ought to be a close game , most probably. It ought to be a fine day tomorrow.(极可能是好天)
六.need （1） 作为情态动词①常用于疑问句和否定句②无人称和时态的变化③疑问否定借助于need本身④后跟动词原型。
（2）need作为实义动词① 有人称和时态的变化（needs，needed）②疑问否定借助于do③可有自己的宾语（可以是名词，代词，不定时）④不受什么句型限制。
I need a pen . I need to go there. He didn't need to go there. Do I need to go there? Need I go there now ? You needn't go there now. ×I need go there now.
3.needn't have done表"本不必做而实际做了"。 You needn't have hurried.你（当时）本不该匆忙。
4．对need引起的一般问句的回答： -Need I go now ? -Yes ,you must .-No, you needn't.
七.dare 1，（1）作为情态动词 ①无人称和时态变化②常用于疑问句和否定句③跟不带to的不定式。注：有固定说法I dare say…… How dare you say……?
2.实义动词①有人称和时态的变化②疑问和否定借助于do③跟带to的不定式。
比较 情态动词 实义动词
肯定句 × He dared to do it .
否定句 He daren't to do itHe dare not do it. He didn't dare to do it .He doesn't dare to do it.
疑问句 Dare he do it?Dare he not do it? Does he dare to do it?Doesn't he dare to do it?
注：（1）有时可把dare的情态和实义动词的用法揉合在一起。如；No one dared say that.
(2)在否定句中实义动词dare后的不定式"to"符号可以省略。I don't dare(to)ask her.
2.daren't have done 表"本不敢做而实际做了"。
八.shall （此处讲述的是shall情态动词而非助动词表时态）。
1． shall用于二，三人称表"命令，警告。威胁，强制。允诺"等。
用于一，三人称用来征询对方意见或请求指示。
You shall do it as I say. Tell him that he shall have the book tomorrow.
表"允诺"相当于may或can
Shall he come at once?(征询对方意见) where shall we meet ? Shall we take a walk together?
2.should (1)表"劝告，建议"Children should be taught to tell the truth.
I suggested he (should )go there. Was it necessary that my uncle (should) be informed?
(2)表"惊异"It's strange that he should have done such a thing.
（3）． 表"可能性"They should be there by now, I think.(98年高考已考过)。
九. Will 1。表"意志，意愿，乐意"，用于各人称 。（与will作助动词表时态区分开来）。
I will tell you all about it.相当于I am glad to tell you all about it.
He won't go there.他不愿意去那里。
2． Will在疑问句用于第二人称，表示询问对方的意愿或向对方提出请求。
Will you go with me for a walk? Do come to my birthday party , will you?
Will you please tell me how I can get to the station ? Won't you sit down?
3. 表示习惯性动作，有；"总是，总要，"，"惯于"的意思 。
Fish will die out of water。鱼离开水总是要死的。
He will talk for hours if you give him the chance .你要给他机会的话他总是要谈上几个钟头 。 十.Would (是will的变形，与will的用法相对应。应把would作助动词表时态区分开)。1． 表"意愿"用于人称。 He said he would help us.他说他乐意帮助我们。2． 表说话人的意愿或向对方提出请求，语气比will更客气婉转，但指的是现在时间。Would you like some bananas ? I'd rather stay at home than go out .Would you mind opening the window for me ?注意：用would提出的一般疑问句，回答时要还原为will。-Would you help me with my lessons? -Yes, I will.3. 表过去的习惯动作。She would drop in on her teacher when she went to town .她总是要顺便看一下老师。Every day she would get up early at six o'clock.过去她总是每天6点起床。She would sit like that for hours watching ships.她过去总是坐在那里几个钟头看船。3． 用于虚拟语气或用于科幻作品中。Such would be our home in the future. 我们未来的家庭就是这样。 十一. used to表示"过去常常"（而现在并非这样）。We used to be good friends. There used to be a temple here. He used to go to work by bus。He used to like fish.他过去爱吃鱼。改为否定句：He didn't use to like fish .(He usedn't to like fish.或He used not to like fish).改为疑问句：Used he to like fish？ 或Did he use to like fish?回答Yes, he used to .否定式问句Use(d)n't he to like fish?反意问句There used to be a temple here, usedn't there? （或didn't there？）1．注：would与used to表"过去常常"的差别：①used to表现在已不复存在的过去习惯或状态有今惜对比的含义，而would则不涉及现在。He used to like fish.(现在不了)。He would like fish.（现在是不是这样，不知道）。②used to 表不确定的过去时间，常常不带表确指过去的时间状语，而would常带。③ would 表过去屡次发生的动作，所以不表状态。而used to可表状态也指动作。？There would be a temple here.④ would 有自觉自愿的含义，通常译作"总是，总要"，而used to只说明过去的事实，无自觉自愿的含义，常译作"过去常常"。Her would sit there, watching ships.（个人愿意）。2．①used to do sth.过去常常做。。。②be (get)used to（doing）sth.习惯于。。。③be used to do sth.被用来做。。 与练习结合，体会掌握情态动词的用法。
⑶ 英语必修三知识
高中英语必修三，四有哪些语法，知识点主要有虚拟语气，情态动词，非谓语，定语从句，名词性从句，状语从句，动词时态，强调句型，倒装句，倒装等。
⑷ 高中英语情态动词的用法有哪些
情态动词的考点精简
一、何谓“情态动词”？
情态动词主要用来表示说话人的情感、态度等，是中学英语语法的重点，也是高考的热点，是单项填空必考的一个知识点。高考试题常常借助语境和句子之间意义上的细微差别来考查学生对情态动词的基本用法及其区别，近五年高考中主要考查四点：情态动词表示推测和可能性的用法；情态动词与虚拟语气；情态动词的表达“情感、态度、语气等”，情态动词表示 “必要性”等方面的用法。
二、情态动词的特点
1.没有人称和数的变化。
2. 有些情态动词有过去式的变化:
e.g. will → would , can → could , may→ might , dare → dared
三、情态动词的否定形式
情态动词+ not +动词原形can not: can't , must not: mustn't , need not : needn't
四、情态动词的用法（常考考点）
Shall
一）用于一、三人称疑问句中，表示说话人征求对方意见和向对方请示。
Shall we begin our class? Shall he come in, sir? (征求对方意见)
二）用于二、三人称 表命令、许诺、警告、规定、威胁、决心、也用于宣布法律、规定的要求
1. You shall get my reply tomorrow. (许诺)
2. “The interest shall be divided into five parts, according to the agreement made by both side. （命令）
3. You shall be sorry for what you said one day, I tell you. (警告、威胁)
4. Nothing shall stop us from advancing. (决心)
5. —What does the sign over there read?
—“No person shall smoke or carry a lighted cigarette，cigar or pipe in this area.”(要求)
Should
一）应该，表示责任、义务
According to the air traffic rules, you should switch off your mobile phone before boarding.
二）竟然、（ 从句中） 惊奇、怀疑、不满(expect\, think, believe等词后） 委婉 客气（第一人称 ） 惊讶、埋怨 （二、三人称） 万一（ if 从句中）
1.） it’s a pity that he should be so careless. (竟然)
2.） I never expect that you should have come here. (惊奇 )
3.） I should advise you not to do it. (委婉 客气)
4.） Who should come to see you when you are in trouble! (埋怨 )
5.）If you should change your mind, please let me know. (万一)
三） 表示合理的推测
The video should be very interesting, in which you can see foreigners making Jiaozi ring the Spring Festival.
四）if 引导的虚拟条件句中，从句中只可出现should.
Should I have time, I would go there with you.
五）要求，命令和请求含义的动词后，接宾语从句，从句中谓语“should do”,should 可以省略
Tom suggested that I (should) go there at once.
六）should have done 本应该做但是没做
shouldn’t have done 本不应该做但是做了
You should have studied hard.
Must
一）表示必须要做的事: 必须
-Must I get to the station before three o'clock?
-Yes, you must. ( No, you needn't. )
二）用于指 偏要、硬要 （ 令人不快的事）
1. The car must break down just when we were in the jungle. (偏要)
2. -- Could I have a word with you, mum?
-- Oh, dear, if you must.
3. – Who is the girl standing over there?
-- Well, if you must know, her name is Mabel.
三）用于表肯定的猜测
He is absent today, and something must have happened to him.
She must be at home now, as I just called her.
四）禁止 (否定句)
You mustn’t make noises in the library. (禁止) (注：mustn’t没有表推测的意思)
Can\ could
一） 能力（陈述句）He can swim./ He could swim when he was a child.
二） 惊异、怀疑、不相信（否定、疑问、惊叹句）How can you be so careless？
三） can’t 表推测“一定不是” He can’t be Mr. White, because I don’t know him.
四） can/ could 用于否定和疑问表猜测 I lost my purse. Where could I have put it?
五） can 用于客观事实的推测，可能出现的某种现象
He is friendly, but sometimes he can be difficult to get along with.
The northern part of China is cold, but sometimes it can be warm.
Nowadays, graates can have difficulty finding jobs.
六） be able to do sth. 经过努力能达到
4. The fire in the hotel spread fast but fortunately all of the people were able to ran out. (经过努力能达到)
May \ might
一）祝愿（祈使句） May you return in safety. (祝愿)
二）可以（语气弱）. May I come in ? (可以)
三）表推测，不太可能的推测 Helen may go on the trip with us, but she isn’t quite sure yet.
四）may as well do sth. Now that you are here, you may as well try your best.
may well do sth. He may not well go with us—he hates travel.
五）might用于虚拟 If he came here tomorrow, he might have a chance of talking with her.
Will
一）意愿、决心、习惯性、倾向性、请求
1. I’ll do my best . (意愿)
2. I will never do such a thing again. (决心)
3. Fish will die without water. (习惯性、倾向性)
4. Will you give me a piece of paper? (请求)
二）区分于be going to, 表示没有计划，临时决定
---I’m sorry. I forgot to send the letter for you.
--- It doesn’t matter. I will go myself.
Would He promised he would never smoke again. (will的过去式)
Would you…? “I would like to… (婉转语气)
Last year our English teacher would sometimes tell us stories in English after class.
(过去的习惯动作,比used to正式，并没有“现已无此习惯”的含义。)
It would be about ten when he left home. (表料想或猜想)
Dare \ need
1. I dare to go there alone at night.
2. Do you dare to go there alone at night? = Dare you go there alone at night?
3. I don’t dare (to )go there alone at night. = I dare not go there alone at night.
dare say\ dare tell \ dare speak
4 needn’t have done 本没有必要做，但是做了
You needn’t have waited for her, as she didn’t go there.
情态动词+ do 表示对现在的推测
情态动词+ have done 表示对过去的推测（对过去的一种结果的假设或虚拟）
(1) should (not) / ought (not) to have done本（不）应该做某事，但却没有做或做了，含有责备或后悔之意。
例如： —I’m sorry. I _________at you the other day. B
—Forget it. I was a bit out of control myself.
A. shouldn’t shout B. shouldn’t have shouted
C. mustn’t shout C. mustn’t have shouted
(2) could have done本来能够做某事但未做。例如：
Thank you for all your hard work last week. I don’t think we ______ it without you. B
A. can manage B. could have managed
C. could manage D. can have managed
(3) needn’t have done本没有必要做某事但却做了。要注意needn’t do则表达“没有必要去做某事”，时间上应该是现在或将来。例如：
—Catherine, I have cleaned the room for you. B
—Thanks. You ________ it. I could manage it myself.
A. needn’t do B. needn’t have done
C. mustn’t do D. shouldn’t have done
(4)would (not) have done本来(不)会发生某事，但却（发生了）或没有发生。常用于虚拟条件句或含蓄虚拟条件引导的虚拟语气，表示对过去所发生事情结果的假设。例如：
He hesitated for a moment before kicking the ball, otherwise, he ________ a goal. D
A. had scored B. scored
C. would score D. would have scored
(5) might have done表示“本来可能……”，但实际上没有发生的事。例如：
What a pity! Considering his ability and experience, he ________ better. D
A. need have done B. must have done
⑸ 高中英语 必修一至必修三的语法有哪些
分为句法词法两大类。
词法每本字典上都有，牛津英汉字典比较好，各大书专店都有。
此法分八大类。
1 时态 语态属；2 定语从句 ；3 名词性从句： 宾语从句 主语从句 表语从句 同位语从句 ；4 状语从句 ；5非谓语动词 ：不定式 动名词 分词 ；6 情态动词 ；7 虚拟语气 ；8 特殊句式 ：强调句 倒装 反义疑问句 省略句
这只是大框 内容太多了
我建议你最好买本语法书像 张道真的 语法书比较好 王迈迈的语法书也不错 句法此法都包括了
⑹ 高一必修三的英语语法都学哪些了
如果你是高中生的话，最重要的不是语法而是词汇，2011年后新课改对语法回的要求已经大大简化了，也就是答说如果话很大的力气把语法学的很好碰到俚语一些的词组你还是做不了题目。而记单词的方法就是找对教材，分清情景，不同的情景的单词是不同的一类一类记。
⑺ 高中英语情态动词
①只复做情态动词:must,can,may……
②可做制情态动词又可做实义动词：如：need, dare
③具有情态动词特征：have(had,has) to,used to, ought to
④可做情态动词又可作助动词：如：shall(should),will(would)[
注意
mustn't代表强烈禁止 must表示主观，have to表示客观。
美式英语中常用must not 而不用 mustn't. mayn't,mightn't和shan't也很少用
常用
can (could), may (might), must, need, ought to, dare (dared), shall (should), will (would)
⑻ 高中英语语法：情态动词
你好
http://wenku..com/view/a7cf7e630b1c59eef8c7b4e6.html。这个是关于情态动词的详细讲解。高中英语语法简明讲专义,简明列出个语法的注意点,对于应试生而言属是非常有用的语法补习课!
希望对你有帮助。