情态动词 Modal Verb

情态动词 Modal Verb
情态动词 Modal Verb

语法测试

1.She said that she __ much progress since she came here.

A. makes

B. made

C. have made D had made

2. “What’s the matter, Ali? You look sad." “Oh, nothing much. As a matter of fact, I my friends back home."

A. just thought

B. have just been thinking

C. was just thinking

D. have just thought

3. She on this essay for twenty minutes but she has written only about a hundred words.

A. will be working

B. worked

C. has been working

D. will have worked

4. The committee will not make the decision until it the matter.

A. has investigated

B.investigates

C. will have investigated

D. investigated

5. Carey didn't go to the party last night because she the baby for her sister until 9:30.

A. must have looked after

B. would have to look after

C. had to look after

D. should have looked after

6. four years since John left school.

A. They have been

B. It is

C. It was

D. Those are

7.The car at the present speed until it reaches the foot of the mountain at about 4 o' clock this afternoon.

A. has gone

B. has not gone C will be going D. has been going

8. By the time you arrive in London, we __ in Europe for two weeks.

A. shall stay

B. have stayed

C. will have stayed

D. have been staying

9. Between 1897 and 1919 at least 29 motion pictures in which artificial beings were

portrayed .

A. had produced

B. have been produced

C. would have produced

D. had been produced

10. The president __ the delegation at the airport but he was taken ill last night, so the vice-president is going to instead. A. is to meet B. was to meet C. has been to meet D. was to have met

语法测题答案与详解

1.(D) 根据时态一致的原则,间接引语(或宾语从句)的时态应与主句的时态一致。该句中said 是过去时所以that引导的宾语从句中也要用过去的某一种时态,而从句中since引导的时间状语从句表明其应为完成时态,故应用过去完成时态。

2.(C) 通过上下文可以判定Ali看起来很难受很伤心,是因为刚才在进行的事情所导致的,所以用过去进行时较好,故(C)是正确答案。

3.(C) 根据句意和时间状语for twenty minutes,可以判断这里应填入现在完成时态,现在完成进行时是现在完成时态的强调形式,并且选项中没有现在完成时态,所以(C)是正确答案。4.(A) 句意表明委员会是在调查事件之后才会做出决定,调查应发生在决定之前,所以应用将来完成时态,但是在英语中,时间条件状语从句中的将来完成时态是由现在完成时来表示的,所以正确答案是(A)。

5.(C) 从上下文的逻辑意义看,(C)项是唯一的正确答案。Carey没有参加晚会,原因是给她姐姐照看小孩子。而(A)和(D)表示对过去发生的事情根据客观情况作出主观推断:(A)作“准是看孩子了”讲;(D)作“本应该看孩子”讲,都不对,而(B)表示动作发生在过去的将来,也不对,所以只有(C)正确。

6.(B)这是一个固定结构(或句型)。本句也可说在"Four years have passed since John left school.”或“has been four years sinceJohn left schoo1.’’

7.(C) until引导的时间状语从句用了一般现在时表示将来的意思,主句因此必须用一般将来时与之呼应,口语中常用将来进行时代替一般将来时表示预料即将发生或肯定发生的事,也可表示某件事已经决定了。本句完全可以用will go 因此,正确答案是(C)。?

8.(C) by the time引导的时间状语从句中若谓语动词用现在时,则主句要用将来完成时;若谓语动词用过去时,则主句要用过去完成时,有时也可以用过去将来完成时。这样,本道题目的正确答案是(C)。

9.(D) 有具体表示过去某一时间段内业已发生的事件的时间状语,句子应该用过去完成时。10.(B) 由第一个句子中的but引导的转折句中所用的过去时,可以判断总统本要在机场接见代表团,表示计划要做某事在英语中可以用be+动词不定式来表达,故正确答案是B)。

情态动词can的用法及一般疑问句whatquestions

情态动词"can“的用法 情态动词不能独立作谓语,不以人称和数量的变化而变化,后接动词原形,也就是说情态动词和动词原形一起构成谓语。我们常见的情态动词有:can,must,would等。接下来,我们就来学习一下情态动词"can"的用法。 ①表示能力,"can"译为"能;会" 例句:I can speak English. 译:我会说英语。 She can dance. 译:她会跳舞。 ②表示可能性,"can"译为"可能;会" 例句:Can you sing 译:你会唱歌吗 Can you swim 译:你会游泳吗 ③"can"用在肯定句中:主语+can+动词原形 例句:I can play the guitar. 译:我会弹吉他。 I can join the music club. 译:我可以加入音乐俱乐部。 ④"can"用在一般疑问句中:Can+主语+动词原形 肯定回答:Yes,主语+can 否定回答:No,主语+can't 例句:Can he play chess 译:他会下国际象棋吗 Yes,he can. 译:是的,他会。 NO,he can't. 译:不,她不会。 ⑤"can"用在否定句中:主语+can't+动词原形(can't 是 can not 的缩写) 例句:She can't play the piano well. 译:她弹不好钢琴。 I can't sing. 译:我不会唱歌。 ⑥"can"用在特殊疑问句中:特殊疑问词+can+主语+动词原形 例句:What can you see in the room 译:在房间里你能看见什么 ⑦当特殊疑问词是句子的主语时:特殊疑问词+can+动词原形 例句:Who can answer my question 译:谁能回答我的问题 注意事项 "can"后一定要接动词原形。 "can" 不以人称和数量的变化而变化。

情态动词的基本用法归纳

情态动词的基本用法归纳情态动词有 can(could),may(might),must,haveto,shall(should,will(would), dare(dared),need(needed),oughtto等。情态动词无人称和数的变化;不能单独使用,必须与其后的动词原形构成谓语。 一、can,could 1)表示能力(体力、知识、技能)。 Canyouliftthisheavybox?(体力) Marycanspeakthreelanguages.(知识) Canyouskate?(技能) 此时可用beableto代替。Can只有一般现在时和一般过去式;而beableto则有更多的时态。 I’llnotbeabletocomethisafternoon. 当表示“经过努力才得以做成功某事”时应用beableto,不能用Can。如: Hewasabletogotothepartyyesterdayeveninginspiteoftheheavyrai n. 2)表示请求和允许。 -----CanIgonow? -----Yes,youcan./No,y oucan’t.

此时可与may互换。在疑问句中还可用could,might代替,不是过去式,只是语气更委婉,不能用于肯定句和答语中。 ----CouldIcometoseeyoutomorrow? ----Yes,youcan.(No,I’mafraidnot.) 3)表示客观可能性(客观原因形成的能力)。 They’vechangedthetimetable,sowecangobybusinstead. Thishallcanhold500peopleatleast. 4)表示推测(惊讶、怀疑、不相信的态度),用于疑问句、否定句和感叹句中。 Canthisbetrue? Thiscan’tbedonebyhim. Howcanthisbetrue? 二、may,might 1)表示请求和允许。might比may语气更委婉,而不是过去式。否定回答时可用can’t或mustn’t,表示“不可以,禁止”。 ----Might/MayIsmokeinthisroom? ----No,youmustn’t. ----May/MightItakethisbookoutoftheroom? ----Yes,youcan.(No,youcan’t/mustn’t.) 用MayI...?征徇对方许可时比较正式和客气,而用CanI...?在口语中更常见。 2)用于祈使句,表示祝愿。

情态动词的基本用法及其区别

情态动词的基本用法及其区别 最近几年高考试题中常常借助语境来考查情态动词的基本用法及其区别,因此在平时学习时准确理解和掌握情态动词的基本用法十分重要。情态动词的用法复杂多变,在高考试题中,命题者常常利用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理解和掌握。对于情态动词,除了要求考生能够准确掌握它们的基本用法外,还要充分利用高考试题所设置的语境来分析句子之间所体现的特殊关系。下面就近几年来高考试题中出现的情态动词的考点进行归纳分析,以便同学们复习掌握。 一、用“情态动词+have +done”结构表示对过去动作的推测,高考试题中常用过去时态或过去的时间状语给以暗示。情态动词的这一用法可以用“对立统一”来概括。 1.当试题的前句和后句在动作和意义上相互补充说明,且整个句意在动作和时间上是一个整体时,我们可用“统一”关系来解决这样的试题。常见的结构有: must have done: 表示对过去动作的肯定推测,常译作“一定做了……”,只能用于肯定句中。其否定形式为can’t/couldn’t have done 疑问式为Can/Could...have done﹖。 could /might have done:表示对过去发生的动作的可能性推测,常译作“可能做了……”。如: 1) My sister met him at the Grand Theater yesterday afternoon, so he _____your lecture. A.couldn’t have attended B.needn’t have attended C.mustn’t have attended D.shouldn’t have attended 本题选A。 2) Jack ____yet, otherwise he would have telephoned me. A.mustn’t have arrived B.shouldn’t have arrived C.can’t have arrived D.need not have arrived (C) 2.当试题的前后句在动作和意义上构成转折关系时,常借助“but, however, instead”等词来表示过去的动作与客观事实不符,这时我们就可以用“对立”关系来解决这样的试题。这种结构常见的有: should have done /ought to have done:表示过去本应该做某事而实际上没有做。 should not have done /ought not to have done:表示过去本不应该做某事但事实上却做了。 need have done:表示过去本来有必要去做某事,但事实上没有做。 need not have done:表示过去本来没有必要做某事,但事实上却做了。如: 3) I was really anxious about you.You _____home without a word.(NMET2001) A.mustn’t leave B.shouldn’t have left C.couldn’t have left D.needn’t leave “本不应该离家出走却走了”,故本题选B。 4) I told Sally how to get here, but perhaps I _____for her.

情态动词表推测用法总结及专项练习

情态动词表推测用法总结及专项练习 1.can / could用于表推测的用法 (1) 从使用句型上看,can 通常只用于否定句或疑问句,一般不用于肯定句,而could 可用于肯定句、否定句和疑问句。两者没有时间上的差别,只是could 比can 更委婉,更不确定。如:It can’t [couldn’t] be true. 那不可能是真的。 What can [could] they be doing? 他们会在干什么呢? We could go there this summer. 今年夏天我们可能要去那儿。 注:can 有时也用于肯定句中表示推测,主要用于表示理论上的可能性(即从理论上看是可能的,但实际未必会发生),或表示“有时”之意。如: Even experienced teachers can make mistakes. 即使是有经验的教师也可能出错。 She can be very unpleasant. 她有时很令人讨厌。 (2) 从时间关系看,对现在或将来情况作推测,后接动词原形;对正在进行的情况作推测,后接be doing 结构;对过去情况作推测,后接动词完成式。如: He could have gone home. 他可能已经回家了。 He can’t [couldn’t] have understood. 他不可能理解了。

Why does he know this? Can [Could] someone have told him about it? 他怎么知道? 会是哪个人告诉他了吗? (3) “could+完成式”除表示对过去的推测外,还有以下重要用法: ①表示过去没有实现的可能性,常译为“本来可以”。如: I could have lent you the money.Why didn’t you ask me? 我本来可以借这笔钱给你的。你为什么不向我提出? ②用来委婉地责备某人过去应该做某事而没有去做,常译为“本来应该”。如: You could have helped him. 你本来应该帮助他的。 ③表示“差点儿就要”。如: I could have died laughing. 我差点儿笑死了。 2. may / might用于表推测的用法 表示推测,两者都可用,只是might 比may 语气更不确定,表示的可能性更小。 (1) 在句型使用方面:两者均可用于肯定句和否定句,但用于疑问句时,may通常不用于句首,但可用于疑问句的句中(如特殊疑问句等),而might尽管可以用于疑问句的句首,但不算普通,通常会改用其他句式(如用could等)。如: He may [might] know the answer. 他可能知道答案。

情态动词的基本用法归纳

~ 情态动词的基本用法归纳 情态动词有can (could), may (might), must, have to, shall (should, will (would), dare (dared), need (needed), ought to等。情态动词无人称和数的变化;不能单独使用,必须与其后的动词原形构成谓语。 一、 can, could 1) 表示能力(体力、知识、技能)。 Can you lift this heavy box(体力) Mary can speak three languages.(知识) \ Can you skate(技能) 此时可用be able to代替。Can只有一般现在时和一般过去式;而be able to则有更多的时态。 I’ll not be able to come this afternoon. 当表示“经过努力才得以做成功某事”时应用be able to,不能用Can。如: He was able to go to the party yesterday evening in spite of the heavy rain. 2) 表示请求和允许。 -----Can I go now ----- Yes, you can. / No, you can’t. % 此时可与may互换。在疑问句中还可用could,might代替,不是过去式,只是语气更委婉,不能用于肯定句和答语中。 ---- Could I come to see you tomorrow ---- Yes, you can. ( No, I’m afraid not. ) 3) 表示客观可能性(客观原因形成的能力)。 They’ve changed the timetable, so we can go by bus instead. This hall can hold 500 people at least. 4) 表示推测(惊讶、怀疑、不相信的态度),用于疑问句、否定句和感叹句中。 Can this be true ? This can’t be done by him. How can this be true 二、 may, might 1) 表示请求和允许。might比 may语气更委婉,而不是过去式。否定回答时可用can’t 或mustn’t,表示“不可以,禁止”。 ----Might/ May I smoke in this room ---- No, you mustn’t. ---- May/Might I take this book out of the room ---- Yes, you can. (No, you can’t / mustn’t. ) 》 用May I...征徇对方许可时比较正式和客气,而用Can I...在口语中更常见。 2)用于祈使句,表示祝愿。

情态动词的意义和用法

一、考点回顾 1、情态动词的基本用法 (1)can、be able to 和could ①can和be able to都表示能力,意思上没多大区别。 can只有现在和过去时,而be able to则有更多的形式。 但当成功地完成某一具体动作时,通常不用could而用was/were able to来表示。 这时was/were able to 相当于managed to,表示经过一番努力,终于能够完成某事。 ②can和could can和could都可以表示能力、技能、许可、建议或请求和可能性。但比较委婉客气地提出问题或陈述看法,一般用could,回答时则用can。 (2)may/might ①may/might表示可能,但may比might可能性大。 ②may/might表示“允许”,may用于现在时或将来时,might常用在间接引语中表过去时,但might也可用于现在时间,表示比较委婉的语气,回答用may。如: ③may / might 表示建议或请求,但might比may 更客气,意思更肯定而无过去时态的含义 用may表示推测一般不用于疑问句,在疑问句中通常用can来代替。 May I ... 问句常见的肯定回答和否定回答。 肯定回答 Yes, please.Certainly.Yes, of course.Sure.Go ahead, please. 否定回答 No, you can't. (最常见)No, you mustn't. (具有强烈禁止的意思) Please don't. You'd better not.I don't think you can.I'm sorry it's not allowed. (3)must ①must表示必须,应该,没有时态变化。 ②must表示肯定的推测。如: ③mustn’t 表示禁止做某事。如: (4)have to have to 表示“必须、不得不”,是由于某种外界(客观)原因而“必须”,“不得不”做某事,也可表示经常的或习惯性的事“必须”做。have to的否定形式表示不必。have to可用于多种时态中。如: (5)should / ought to ①should和ought to表示应当、应该,前者比后者语气轻。 ②should / ought to 表推测。 ③should / ought to的否定形式表示禁止之意。如: ④should可表示陈述意见,推出建议或请求;而ought to可以表示劝告之意。如: (6)will / would ①will 用于各种人称表示“意志”、“意愿”或“决心”等,否定式won’t + 动词。如: ②will用于疑问句中,常用在第二称时表示说话人向对方提出“请求”或“询问”如: ③will 表示习惯性的动作,有“总是”、“惯于”的含义。如: ④would 表示客气的请求、建议或意愿。如: ⑤would 表示过去反复发生的动作,总是会。 (7)need need 作“必要”讲,既可作情态动词,也可作实义动词。作实义动词时后面的动词不定式要

be动词的一般现在时

Be动词的一般现在时 句型: 肯定句 否定句 疑问句 1、be动词的意义 Mary is a student. He is at school. I am a teacher. She is beautiful. She is very beautiful. 2、否定句 肯定:It is a book. → 否定:It is not a book. /It isn’t a book. I am a student. → I am not a student. /I’m not a student. You are my friend. →You are not my friend. /You aren’t my friend. She is my sister. These are apples. I am Mary’s deskmate. 他们是我的同班同学。 这本书很有趣。 3、一般疑问句 肯定:I am a student. →一般疑问:Are you a student? She is from China. Is she from China? They are nurses. My book is on the table. John 是中国人吗? 这本书有趣吗? 回答一般疑问句时,主语必须是代词 4、特殊疑问句(特殊疑问词: what, who, which, where, when, why, how) What is this? It is a table. What are they? They are workers. Who are they? They are my friends. 这个男人是谁?他是我的哥哥。 你的哥哥是干什么的?他是一名医生。 5、there is/are句型 1)There is a book on the table. There is the book on the table. There is a bed in this room. There are many eggs in the kitchen. 2)there 的意思 There is a school there. 6、there is/are的否定句与疑问句 1)一般疑问句 ______ ________ many eggs in the kitchen? 厨房里有很多鸡蛋吗? ______ ________ a middle school there? 哪里有一所学校吗? 2)特殊疑问句 How mach ink is there in the ink bottle? There is only a little.

情态动词的一些特殊用法

情态动词的一些特殊用法 情态动词本身有语义, 表示说话人的语气或情态, 但语义不完整, 不能单独作谓语动词, 一般只能与动词原形一起构成谓语动词。现就考试中出现频率高的情态动词及其用法作些说明: 一、must 与must有关的题型经常与其后面应跟什么时态有关. 在有must的句中, 常表示说话人在进行依据较充分的推测。至于用哪些时态, 则有两个参考标准: 句中的时间状语和句间的关系。 Y ou look so sleepy. Y ou must have sat up late last night. 你看上去这么困倦, 昨晚一定睡得很晚。 I mailed that letter a week ago. He must have received it. 我一周前就发出了那封信, 想必他一定收到了。 must + have + -ed分词: 用于肯定句, 表示对过去情况的推测, 意为“肯定, 一定”。 Y ou had only a little egg at breakfast today. Y ou must be hungry now. Must 加动词原形的进行式, 表示对现在发生动作和事物的猜测, 有“一定, 准是”的意思。 其它情态动词如may (might), should (ought to), can(could), need的用法分别如下: 二、may(might) may(might) + have + -ed 分词: 用于肯定句和其它否定句, 表示对已发生事情的不肯定的推测, 意为“可能, 大概”, 其中might较may语气更弱, 把握更小。 They may have derived inspiration from these words. 他们可能从这些话语中获得了灵感。 Our manager may (might) have gone to Guangzhuo attending Spring Fair there last week. 我们经理可能已于上周去广州参加春交会了。

be动词-情态动词及助动词用法

七年级英语双休日作业 班级:姓名:等级 英语句型变化总结练习 1、含有be动词am,is,are构成的句子: 变一般疑问句时把am,is,are提到句子的前面,句尾用问号即可。 变否定句时直接在am,is,are后面加not即可。例如: 肯定句:He is a student. 一般疑问句: a student? 否定句: He a student. 肯定句:We are from China. 一般疑问句: from China? 否定句:We from China 2. 由情态动词can, may, should等构成的句子: 变一般疑问句时把can, may,提到句子的前面,句尾用问号即可. 变否定句时直接在can, may,后面加not即可. 例如: 肯定句: She can swim. 一般疑问句:she swim? 否定句: She swim. 3. 由行为动词构成的句子: 需要加助词do或does. 变一般疑问句时把do/does放在句子前面. 变否定句时在主语后面加don’t / doesn’t , 谓语用动词原形。例如: 肯定句: They play football after school. 一般疑问句: play football after school? 否定句: They football after school. 肯定句:Tom watches TV every day. 一般疑问句: Tom TV every day? 否定句: Tom TV every day.

注意:变否定句时相关词的改变 肯定句变否定句时,除将谓语变为否定式外,句中其他词语也可能随之改变: 如将some改为any,too和also改为either,and改为or等:There are some birds in the tree. 树上有些鸟。 →There aren’t ______ birds in the tree. 树上没有鸟。 He likes the book, too. 他也喜欢这本书。 →He doesn’t like the book, ______. 他也不喜欢这本书。He likes singing and dancing. 他喜欢唱歌和跳舞。 →He doe sn’t like singing ______dancing. 他不喜欢唱歌也 不喜欢跳舞。补充练习: 根据句后括号内的要求,填入句中所缺的词: 1. I know the answer. (一般疑问句) ______ ______ know the answer? 2. We can see some birds. (一般疑问句) ______ ______ see ______ birds? 3. There is a computer in the house. (一般疑问句) ______ ______ a computer in the house? 4. There are some flowers on the teachers’ desk. (一般疑问句) ______ ______ any flowers on the teachers’ desk? 5. There are some apples on the tree. (否定式) There ______ ______ ______ apples on the tree. 6. I think he is old. (否定句) I ______ think he ______ old.

情态动词,特殊疑问句,一般疑问句

情态动词(Modal [‘modl:] verbs) 不能独立作谓语,只能和行为动词一起构成谓语。情态动词用在行为动词前,表示说话人对这一动作或状态的看法或主观设想。 情态动词主要有下列:can (could), may (might), must, need, ought to, dare (dared), shall (should), will (would) must not. 情态动词的特点: 情态动词无人称和数的变化,情态动词后面跟的动词须用原形,否定式构成是在情态动词后面加"not"。 个别情态动词有现在式和过去式两种形式,过去式用来表达更加客气,委婉的语气,时态性不强,可用于过去,现在或将来。 情态动词属非及物动词,故没有被动语态。

一般疑问句General ['d?enr?l] Questions 1.基本结构: ①谓语动词是助动词(do, have和be)、情态动词时,只要直接把这些词置于句首,句末改成问号。★be + 主语+ 其它部分 ★情态动词+ 主语+ 动词原形+ 其它部分 ★肯定回答用“Yes,主语+be\情态动词.”,否定回答用“No,主语+be\情态动词+not.”。

②谓语动词是行为动词时,必须在句首加上助动词Do、Does、Did,句子中谓语动词必须用原形。 ★助动词+ 主语+ 动词原形+ 其它 Do your parents like English Yes,they do. / No,they don’t ③注意:在把肯定句改成否定句或一般疑问句的时候, already要改成yet,some、something、somebody等分别改成any、anything、anybody等。在改成否定句的时候注意把too改成either, both改成neither, all改成none等.把第一人称I、we改成第二人称you。 Are you from Japan﹖Yes, I am./ No, I'm not. Is her sister doing her homework now﹖Yes, she is./ No, she isn't. Does he work in a bank﹖Yes, he does./ No, he doesn't. 2.将陈述句变为一般疑问句 ①含be动词或情态动词的句子(秘诀:一调二改三问号) 一调:即把句中的be或情态动词调到主语前; 二改:改换主语称谓,即将句中的主语I\my \mines\we\our\ours等第一人称分别改为相应的第二人称you\your\ yours等; 三问号:句末的句号改为问号。如: I am an English teacher. →Are you an English teacher We can speak English fluently. →Can you speak English fluently ②含行为动词(或称为实义动词)的句子(秘诀:一加二改三问号) 一加:即在句首加助动词Do或Does; 二改:①把谓语动词改为原形;②、改换主语称谓(同第一组); 三问号:句末的句号改为问号。 We read English every morning. → Do you read English every morning Tom’s father listens to English on the radio every evening. → Does Tom’s father listen to English on the radio every evening 特殊疑问句The special interrogative sentence 以疑问词开头,对句中某一成分提问的句子叫特殊疑问句。 疑问代词:what(什么)who(谁,作主语) which(哪个,在一定范围内选择) whose(谁的,指附属关系)whom(谁,作宾语) ②疑问副词:when(何时,询问时间)where(何地,询问地点) why(为什么,询问原因) how(如何,询问手段,方式,工具以及程度) 2.语序:

初中情态动词用法总结

专项:情态动词 一考点:情态动词的用法和辨析,情态动词表示推测和可能,由情态动词引导的一般疑问句的回答。 二类型:1 只是情态动词:can, could, may, might, must 2 可做情态动词,可做实义动词:need, dare 3 可做情态动词,可做助动词:will, would, shall, should 4 特殊:have to, ought to, used to 三特征:1 有一定的词义,但不能单独作谓语,必须与行为动词和系动词连用构成谓语。 2 无人称和数的变化。(have to 除外) Eg: He has to stay here. 3 后接动词原形。 4 具有助动词作用,可构成否定,疑问或简短回答。 四用法: 1. can ①表示能力,“能,会”。Eg : Can you play basketball? ②表示怀疑,猜测,常用于否定句或疑问句。 Eg :Li hua can’t be in the classroom. ③表示请求,允许,多用于口语,译“可以”= may. Eg: you can go now. ④can 开头的疑问句,肯定句,否定句用can或can’t. 2.could①can 的过去式,表示过去的能力。 Eg :I could swim when I was seven years old. ②could 开头的疑问句,肯定和否定回答用could, couldn’t如果could 表示现在的委婉,用can 回答。 Eg: Could I have a drink? Yes, you can. 3.may①表示推测,“可能,也许”,用于肯定句。 Eg: He may come tomorrow. ②表示请求,“许可,可以”。Eg: May I borrow your book? 注:表示请求,许可时,主语为第一人称的一般疑问句,否定回

be动词、助动词、情态动词讲解(基础篇)Microsoft Word 文档

be动词、助动词、情态动词讲解 (基础篇) 1、be动词的用法。 英语中,be动词选用单数还是复数,要由主语来定,主语是单数,就用单数,反之用复数。 ◆句中含有be动词时: 肯定句:主语+be +其他 否定句:主语+ be + not +其他 一般疑问句: Be +主语+其他+? 特殊疑问句:疑问词(what / who / when / where)+ be +主语+其他+? I am a teacher. You are right. She is 16 years old. My father is at home. The students are playing games. My teacher was ill yesterday. There is a picture on the wall. There are two books on the table. ★ be动词用法歌: 我用am,你用are,is 连接他她它。单数名词用is,复数名词全用are。 变疑问,往前提,句末问号莫丢弃;变否定,更容易,be后not莫忘记; 疑问否定任你变,句首大写莫迟疑。 ★ be动词作谓语,它后面一般跟名词、形容词或介词短语。 她个子很高。她在教室里。 她是一个高个子的女孩。 2、助动词的用法。 英语句子按正常语序是“什么人或事物” + “做什么”,即,我们常说的“主语 + 谓语 + 其他”。 ①主语为I 或复数名词、代词时: 肯定句: I / We / They / The students +动词原形+其他+。 We watch TV every night. 变否定:主语+ don’t +动词原形+其他+。 We don’t watch TV every night. 一般疑问句 Do + 主语 + 动词原形 + 其他 + ? Do you watch TV every night? Yes, we do. / No, we don’t. 特殊疑问句:疑问词 + do + 主语 + 动词原形 + 其他 + ? How often do you watch TV?

情态动词can的基本用法

情态动词can的基本用法: 情态动词can有一定的词义,但不能独立存在,它必须与动词原形一起构成谓语。情态动词can没有人称和数的变化。其具体用法如下: 1. 表示"能、会",指脑力或体力方面的"能力"。例如: I can speak En glish. 我会讲英语。 Jim can swim but I can't. 吉姆会游泳,但我不会。 2. 表示"可能",常用于否定句或疑问句中,指某种可能性,此时can 't译为“不可能”。例如: Han Mei ca n't be in the classroom. 韩梅不可能在教室里。 Can he come here today, please? 请问他今天能到这里来吗? 3. 表示"可以",常用于口语中,指许可或请求做某事,可以代替 may。例如: Can I have a cup of tea, please? 请问我可以喝一杯茶吗? You can go out. 你可以出去了。 补充:can的过去式could,意为“能、会”,表示过去的能力 女口: He could write poems when he was 10. 他十岁时就会写诗。 could在疑问句中,表示委婉的语气,此时could没有过去式的意思。 如:Could you do me a favour? 你能帮我个忙吗?一 Could I use your pen?我能用一下你的钢笔吗?一Yes, you can.可以。(注意回答) 情态动词can的基本句型:

1. 肯定句型为:主语+can+动词原形+其它。例如: They can play basketball. 他们能打篮球。 She can dance.她会跳舞。 You can go to watch TV. 你可以去看电视了。 2. ........................... 否定句型为:主语+can not(can't/cannot)+ 动词原形+其它。表示"某人不能(不会。不可能)做其中can't是can not的缩略式,英国多写成cannot。例如: You cann ot pass the ball like this. 你不能像这样传球。 I ca n't ride a motorbike. 我不会骑摩托车。 3. 疑问句句型分为:一般疑问句句型和特殊疑问句句型两种类型。 ⑴一般疑问句句型为:Can+主语+动词原形+其它。表示"某人会(能。可以)做吗?",用于口语时,常表示请求或许可。其肯定答语用""Yes,主语+can."作答; 否定答语用"No,主语+can't."作答。注意答语中做主语的人称代词,应根据问句中的主语作相应的变化。其变化规则为:第一人称问,则第二人称答;第二人称问,则第一人称答;第三人称问,第三人称答。例如: ①-Can you sing an En glish song for us? 你可以为我们大家唱一首英语歌吗?

情态动词的用法完整详细

情态动词 定义: 情态动词是一种本身有一定的词义,但要与动词原形一起使用,给谓语动词增添情态色彩,表示说话人对有关行为或事物的态度和看法,认为其可能、应该或必要等。 情态动词后面加动词原形。 分类: 情态动词有四类: ①只做情态动词:must,can(could),may(might),ought to ②可做情态动词又可做实义动词:need,dare ③可做情态动词又可做助动词:shall(should),will(would) ④具有情态动词特征:have(had) to,used to 位置: 情态动词在句中放在谓语动词之前, 谓语动词前若有助动词,则在助动词之前,疑问句中, 情态动词 则在主语之前。 I can see you. Come here. 我能看见你,过来吧。 He must have been away. 他一定走了。 What can I do for you? 我能帮你吗? How dare you treat us like that! 你怎能那样对待我们! 特点: 情态动词无人称和数的变化, 情态动词后面跟的动词需用原形,否定式构成是在情态动词后面加"not"。个别情态动词有现在式和过去式两种形式, 过去式用来表达更加客气, 委婉的语气, 时态性不强, 可用于过去,现在或将来。情态动词属非及物动词,故没有被动语态。情态动词没有非谓语形式,即没有不定式,分词,等形式。 He could be here soon. 他很快就来。 We can't carry the heavy box. 我们搬不动那箱子。 I'm sorry I can't help you. 对不起,我帮不上你。 基本助动词与情态助动词最主要的区别之一是,基本助动词本身没有词义,而情态助动词则有自己的词义,能表示说话人对有关动作或状态的看法,或表示主观设想: What have you been doing since? (构成完成进行体,本身无词义) I am afraid I must be going. (一定要) You may have read some account of the matter. (或许已经) 除此之外,情态助动词还有如下词法和句法特征:

be动词、助动词、情态动词讲解(基础篇)第一讲

be动词、助动词、情态动词讲解(基础篇) 1、be动词的用法。 be am / is was 单数 用单数,反之用复数。 ◆句中含有be动词时: 肯定句: 主语+be +其他 否定句: 主语+be +not +其他 一般疑问句: Be +主语+其他+? 特殊疑问句: 疑问词(what / who / when / where)+be +主语+其他+? I am a teacher.You are right.She is 16years old.My father is at home. The students are playing games.My teacher was ill yesterday. There is a picture on the wall. There are two books on the table. ★ be动词用法歌: 我用am,你用are,is 连接他她它。单数名词用is,复数名词全用are。

变疑问,往前提,句末问号莫丢弃;变否定,更容易,be后not莫忘记; 疑问否定任你变,句首大写莫迟疑。 ★ be动词作谓语,它后面一般跟名词、形容词或介词短语。 她个子很高。她在教室里。 她是一个高个子的女孩。 2、助动词的用法。 英语句子按正常语序是“什么人或事物” + “做什么”,即,我们常说的“主语+谓语+其他”。are were 复数现在时过去时英语中,be动词选用单数还是复数,要由主语来定,主语是单数,就①主语为I 或复数名词、代词时: 肯定句: I / We / They / The students +动词原形+其他+。 We watch TV every night. 变否定: 主语+don’t +动词原形+其他+。 We don’t watch TV every night. 一般疑问句Do +主语+动词原形+其他+? Do you watch TV every night? Yes, we do./No, we don’t. 特殊疑问句: 疑问词+ do +主语+动词原形+其他+?How often do you watch TV?

情态动词的特殊用法

情态动词的特殊用法 1. _____ fired, your health care and other benefits will not be immediately cut off. A. Would you be B. Should you be C. Could you be D. Might you be 2. —What’s the name? —Khulaifi. _____ I spell that for you? A. Shall B. Would C. Can D. Might 3. John, look at the time. _____ you play the piano at such a late hour? A. Must B. Can C. May D. Need 4. —Must I turn off the gas after cooking? —Of course. You can never be _____ careful with that. A. enough B. too C. so D. very 5. Some aspects of a pilot’s job _____ be boring, and pilots often _____ work at inconvenient hours. A. can;have to B. may;can C. have to;may D. ought to;must 6. —When can I come for the photos? I need them tomorrow afternoon. —They _____ be ready by 12:00. A. can B. should C. might D. need 7. When he was there, he ___ go to that coffee shop at the corner after work every day.A. would B. should C. had better D. might 8. —Excuse me, but I want to use your computer to type a report. —You _____ have my computer if you don’t take care of it. A. shan’t B. might not C. needn’t D. shouldn’t 9. You can’t imagine that a well-behaved gentleman _____ be so rude to a lady. A. might B. need C. should D. would 10. Many people agree that _____ knowledge of English is a must in _____ international trade today. A. a;不填 B. the;an C. the;the D.不填;the 11. How _____ you say that you really understand the whole story if you have covered only part of the article? A. can B. must C. need D. may 12. The fire spread through the hotel quickly but everyone _____ get out. A. had to B. would C. was able to D. could 13. There’s no light on — they ____ be at home. A. can’t B. mustn’t C. needn’t D. shouldn’t 14. Tom, you _____ leave all your clothes on the floor like this! A. wouldn’t B. mustn’t C. needn’t D. may not 15. _____ we never forget each other. A. May B. Can C. Must D. Should 练习: 1. Mr. Bush is on time for everything. How ____ it be that he was late for opening ceremony?A. can B. should C. may D. must 2. Naturally, after I told her what to do, my daughter _____ go and do the opposite! A. may B. can C. must D. should 3. It has been announced that candidates _______ remain in their seats until all the papers have been collected. A. can B. will C. may D. shall 4. “The interest ___________ be divided into five parts, according to the agreement made by both sides,” declared the judge. A. may B. should C. must D. shall 5. You can’t imagine that a top student ______ have failed in the college entrance examination. A. might B. need C. should D. would 6. Football, as is known to the world, _______ be exciting and inviting. A. should B. might C. can D. will 7. —_____ he open the door? —Yes, please. A. Shall B. Will C. Can D. Would 8. The World Wide Web is sometimes jokingly called the World Wide Wait because it _____ be very slow. A. should B. must C. will D. can 9. —Isn’t that Ann’s husband over there? —No, it ______ be him-I’m sure he doesn’t wear glasses. A. can’t B. must not C. won’t D. may not 10. It’s nearly seven o’clock. Jack _____ be here at any moment. A. must B. need C. should D. can 11. What should we do if it _____ tomorrow? A. should snow B. would snow C. snow D. will snow 12. You _____ use my bike on condition that you give it to me before I leave here. A. should B. must C. ought to D. shall 常见的通常只能用主动语态的场合 1. 当谓语动词是不及物动词,又不能构成动词短语接宾语时。 2. 当宾语是反身代词时。如I hurt myself. 3. 当宾语是相互代词时。如We should learn from each other. 4. 当宾语是不定式、动名词时。如I want to watch TV. / They enjoy playing basketball. 5. 当谓语动词是拥有、容纳类动词(have, hold)时。如I have a big family. / The room can hold 40 people. 6. 当谓语动词是开始、结束类动词(start, begin, stop, end, finish)时。如The first class will start at 8:00. / The film ended when I got there. 7. 当谓语动词是开张、关门类动词(open, close)时。如The shop usually opens before 8:30. 8. 当谓语动词是花费类动词(take, cost)时。如The new dress cost her 90 dollars. 9. 当谓语动词是发生类动词(happen, take place)时。如Something strange happened an hour ago. 10. 当谓语动词是保持类动词(keep)时。如The hall keeps quiet now. 11. 当谓语动词是运动、变化类动词(leave, move, change)时。如The train is leaving. / Things have changed a lot. / The car didn’t move. 12. 当谓语动词是变得、成为类动词(become, get, turn)时。如The teacher became angry. / The weather is getting warmer and warmer. 13. 当谓语动词是…起来类动词时。具体细分如下: ○1半系动词(look, sound, feel, smell, taste)。如The building looks very tall. / That piece of music sounds nice. / The dish smells delicious. ○2其它类动词(eat, drink, cook, drive, work, read, write, sell, show, play, clean, wear, wash, burn等)。如This kind of fruit eats crisp (脆). / Orange drinks sweet. / The car drives smoothly. / This text reads easily. / The pen writes well. / The clothes wash hard. 14. 当宾语前有与主语一致的物主代词,且宾语名词为身体的一部分时。如He cut his finger. 15. 当谓语动词是由have / take构成的词组(have a cold, have/take a rest, have/take a walk)时。如I had a cold yesterday. 16. 当谓语动词是need, 且主语是物,后接动名词时。如My bike needs repairing. 17. 当不定式作定语时。如I have a lot of housework to do. / He wants a house to live in. 18. 当不定式作表语形容词的状语时。这里所说的表语形容词即作表语的形容词;所说的状语即修饰该形容词的程度状语。

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