高一情態(tài)動(dòng)詞練習(xí)題的內(nèi)容
篇一：【高一】情態(tài)動(dòng)詞練習(xí)
高中英語必修三 第一單元 情態(tài)動(dòng)詞練習(xí)
1.-________ I download the article again？
-No,you needn't.
A. ShallB. Will C. Must D. Can
2. -Can you go skating with us this afternoon？
-Sorry,I can't. I ________ take care of my little sister at home.
A. canB. may C. would D. have to
3. -Must I hand in my exercise book today？
-No, you ________.
A. can't B. needn't C. mustn't D. won't
4. -________I have your English name, please？
-Yes, Helen. H-E-L-E-N.
A. Must B. May C. WillD. Need
5. -Who is the boy over there？ Is it John？
-No, it ________ be him. John is much taller.
A. mustn'tB. may not C. can'tD. needn't
6. -Can you play the piano, Jay？
-Yes, I ________. It's easy.
A. must B. can C. needD. may
7.-You must come back every month.
-Yes, I ________.
A. will B. mustC. shouldD. can
8. - Must we clean the room right now？
- No, you___. You ____ clean it after lunch.
A. needn't；may B. needn't;must
C. Mustn't；can D. mustn't；may
9. Children ________ play with fire.
A. mustn't B. can'tC. shouldn't D. needn't
10. -________ I come in, Mr Green？
-Yes,come in, please.
A. MustB. Need C. WillD. May
11. -Must I finish the work today？
-No, you ________. You ________ finish it tomorrow.
A. mustn't； may B. can't； can
C. needn't； may D. needn't； must
「答案與解析」
1. C.這組對(duì)話的意思是："我必須再次下載這篇文章嗎？""不必了。"該題測(cè)試情態(tài)動(dòng)詞的用法。根據(jù)答語 No, you needn't 就能確定要選C.
2. D.這組對(duì)話的意思是："今天下午你能同我們一塊去溜冰嗎？""抱歉,我不能去。我必須在家照看我小妹妹。"該題測(cè)試情態(tài)動(dòng)詞的用法。表示客觀上"不得不"做某事時(shí),要用have to.
3. B.這組對(duì)話的意思是："我必須今天交作業(yè)嗎？""不必。"該題測(cè)試情態(tài)動(dòng)詞的用法。對(duì)以must開頭的問句進(jìn)行否定回答時(shí),要用needn't.
4. B.這組對(duì)話的意思是："我可以知道您的英文名字嗎""可以,海倫。H-E-L-E-N."該題測(cè)試情態(tài)動(dòng)詞的用法。"請(qǐng)求對(duì)方許可"時(shí),常用 May I （we）…。
5. C.這組對(duì)話的意思是："那邊的那個(gè)男生是誰？是約翰嗎？""那不可能是他,約翰個(gè)子高些。"該題測(cè)試情態(tài)動(dòng)詞的用法。表示很肯定的否定推測(cè)時(shí),用can't.
6. B.這組對(duì)話的意思是："杰伊,你會(huì)彈鋼琴嗎？""會(huì),小菜一碟。"該題測(cè)試情態(tài)動(dòng)詞的用法。一般說來,以情態(tài)動(dòng)詞can開頭的問句,肯定回答用can；否定回答用can't.
7. A.此題易誤選為B或C.這是因?yàn)槭芰怂季S定勢(shì)的影響引起的,因?yàn)榍懊婢渥又械膍ust這個(gè)詞,許多人就想當(dāng)然地選擇了B項(xiàng)。其實(shí),這里應(yīng)該選擇A項(xiàng),句意為："你必須每月回來一次。""好的,我會(huì)的。"
8. A.needn't表示"沒有必要"；may意為"可以".
9. A.考查情態(tài)動(dòng)詞。mustn't千萬不,絕不能,一定不要；can't不能；shouldn't不應(yīng)該；needn't不必要。
10. D.考查情態(tài)動(dòng)詞。請(qǐng)求允許用may或can.
11. C.考查情態(tài)動(dòng)詞。否定回答must,表示"不必"用needn't,排除A和B.又表示允許"可以",用may或can,所以A正確。若用must與前面needn't相矛盾。
篇二：高一英語情態(tài)動(dòng)詞專題訓(xùn)練及答案
高一英語情態(tài)動(dòng)詞專題訓(xùn)練
概 說
助動(dòng)詞(auxiliary)主要有兩類：基本助動(dòng)詞(primary auxiliary)和情態(tài)助動(dòng)詞(modal auxiliary)�；局鷦�(dòng)詞有三個(gè)：do, have和be；情態(tài)助動(dòng)詞有十三個(gè)：may, might; can, could; will, would; shall, should; must, need, dare, used to, ought to. 上述兩類助動(dòng)詞的共同特征是，在協(xié)助主動(dòng)詞構(gòu)成限定動(dòng)詞詞組時(shí)，具有作用詞的功能： 1） 構(gòu)成否定式：
He didn’t go and neither did she.
The meeting might not start until 5 o?clock. 2） 構(gòu)成疑問式或附加疑問式：
Must you leave right now?
You have been learning French for 5 years, haven’t you? 3） 構(gòu)成修辭倒裝：
Nowhere can he obtain any information about his sister. Hardly had he arrived when she started complaining. 4） 代替限定動(dòng)詞詞組：
A: Who can solve this crossword puzzle? B: Tom can.
A: Shall I write to him? B: Yes, do.
情態(tài)助動(dòng)詞的特征
基本助動(dòng)詞與情態(tài)助動(dòng)詞最主要的區(qū)別之一是，基本助動(dòng)詞本身沒有詞義，而情態(tài)助動(dòng)詞則有自己的詞義，能表示說話人對(duì)有關(guān)動(dòng)作或狀態(tài)的看法，或表示主觀設(shè)想：
What have you been doing since? （構(gòu)成完成進(jìn)行體，本身無詞義） I am afraid I must be going. （一定要）
You may have read some account of the matter. （或許已經(jīng)） 除此之外，情態(tài)助動(dòng)詞還有如下詞法和句法特征：
1） 除ought和used以外，其他情態(tài)動(dòng)詞后面只能接不帶to的不定式。如果我們把ought to
和used to看做是固定詞組的話，那么，所有情態(tài)動(dòng)詞無一例外地只能接不帶to的不定式：
We used to grow beautiful roses.
I asked if he would come and repair my television set.
2） 情態(tài)助動(dòng)詞在限定動(dòng)詞詞組總總是位居第一：
They need not have been punished so severely.
3） 情態(tài)助動(dòng)詞用于第三人稱單數(shù)現(xiàn)在時(shí)的時(shí)候，沒有詞形變化，即其詞尾無-s形式：
She dare not say what she thinks.
4） 情態(tài)動(dòng)詞沒有非限定形式，即沒有不定式、-ing分詞和-ed分詞形式：
Still, she needn’t have run away.
5） 情態(tài)助動(dòng)詞的“時(shí)”的形式并不是時(shí)間區(qū)別的主要標(biāo)志。在不少場(chǎng)合，情態(tài)助動(dòng)詞的現(xiàn)
在時(shí)和過去時(shí)形式都可以表示現(xiàn)在、過去或?qū)頃r(shí)間：
Would you mind very much if I ask you to do something?
She told him he ought not to have done it.
6） 情態(tài)助動(dòng)詞之間是相互排斥的，即在一個(gè)限定動(dòng)詞詞組中只能出現(xiàn)一個(gè)情態(tài)助動(dòng)詞，但
有時(shí)卻可以與have和be基本助動(dòng)詞連用：
You should have washed the wound. Well, you shouldn’t be reading a novel.
情態(tài)助動(dòng)詞的意義和用法
情態(tài)助動(dòng)詞從最普通的意義上來說，是修飾分句意義的一種方式，它可以反映說話者對(duì)其表述是否真實(shí)和可能的程度作出判斷。但不同的情態(tài)助動(dòng)詞本身所包含的意義和用法又不同，下面逐個(gè)分析。
1） can和could的用法
1． 表示能力或客觀可能性，還可以表示請(qǐng)求和允許。如：
Can you finish this work tonight? Man cannot live without air.
— Can I go now?— Yes, you can.
注意：①could也可表示請(qǐng)求，預(yù)期委婉，主要用于疑問句，不可用于肯定句，答語應(yīng)用can（即could不能用于現(xiàn)在時(shí)態(tài)的簡略答語中）。如：
Could I come to see you tomorrow?
Yes, you can. （否定答語可用No, I?m afraid not.） ②can表示能力時(shí)，還可用be able to代替。如： I?ll not be able to come this afternoon. 2． 表示驚異、懷疑、不相信的態(tài)度。（主要用在否定句、疑問句或驚嘆句中）
Can this be true?
How can you be so careless! This cannot be done by him.
3． “can(could) + have + 過去分詞”的疑問或否定形式表示對(duì)過去發(fā)生的行為懷疑或
不肯定。如：
He cannot have been to that town. Can he have got the book?
2） may和might的用法
1． 表示許可。
表示請(qǐng)求、允許時(shí)，might比many的語氣更委婉一些，否定回答時(shí)要用mustn?t表示“不可以”、“禁止”、“阻止”之意。如： You may drive the car.
— Might I use your pen?— No, you mustn’t.
用May I ... 征詢對(duì)方許可在文體上比較正式，在口氣上比較客氣。在日�？谡Z中，用Can I ... 征詢對(duì)方意見在現(xiàn)代口語中更為常見。 2． 用于祈使句中表示祝愿。如：
May you succeed!
3． 表示推測(cè)、可能（疑問句不能用于此意）。
He may be very busy now.
4． “may(might) + have + 過去分詞”表示對(duì)過去發(fā)生的行為的推測(cè)。如：
He may not have finished the work.
3） must和have to的用法
1． 表示必須、必要。如：
You must come in time.
回答must引出的問句時(shí)，如果是否定的回答，不能用mustn?t，而要用needn?t或don?t have to。
— Must we hand in our exercise books today? — Yes, you must. (No, you don?t have to.)
2． “must be + 表語”的結(jié)構(gòu)表示推測(cè)，它的否定或疑問式用can代替must。 This must be your pen.
3． “must + have + 過去分詞”的結(jié)構(gòu)常用在肯定句中，表示對(duì)過去發(fā)生的行為的推測(cè)。
它的否定或疑問式用can代替must。 He must have been to Shanghai. 4． have to的含義與must相似，兩者往往可以互換使用，但have to有各種形式，隨have
的變化而定。must與have to有下列幾點(diǎn)不同：
�、� must表示的是說話人的主觀看法，而have to則往往強(qiáng)調(diào)客觀需要。如：
The play is not interesting. I really must go now. I had to work when I was your age.
�、� must一般只表現(xiàn)在，have則有更多的時(shí)態(tài)形式。 ③ 二者的否定意義不大相同。如：
You mustn’t go. 你可不要去。 You don’t have to go. 你不必去。 ④ 詢問對(duì)方的意愿時(shí)應(yīng)用must。如：
Must I clean all the room?
4） dare和need的用法
1． need表示“需要”或“必須”，作情態(tài)動(dòng)詞時(shí)，僅用于否定句或疑問句中，在肯定
句中一般用must, have to, ought to,或should代替。如： You needn’t come so early.
— Need I finish the work today? — Yes, you must.
注意：needn?t + 不定式的完成式“表示本來不必做某事而實(shí)際上做了某事”。如： You needn’t have waited for me. 2． Dare作情態(tài)動(dòng)詞時(shí)，主要用于疑問句、否定句和條件從句中，一般不用在肯定句中。
如：
How dare you say I?m unfair.
He daren’t speak English before such a crowd, dare he?
3． Dare和need常用作實(shí)義動(dòng)詞，有時(shí)態(tài)、人稱和數(shù)的變化，所不同的是，作實(shí)義動(dòng)
詞時(shí)，在肯定句中，dare后面通常接帶to的不定式，在否定和疑問句中，dare后面可接帶to或不帶to的不定式。如： I dare to swim across this river. He does not dare (to) answer. Don?t you dare (to) touch it! I wondered he dare (to) say that. He needs to finish it this evening.
5） shall和should的用法
1． Shall用于第一人稱，表示征求對(duì)方的意愿。如：
What shall we do this evening? 2． Shall用于第一、第三人稱疑問句中，表示說話人征求對(duì)方的意見或向?qū)Ψ秸?qǐng)示。如：
Shall we begin our lesson?
When shall he be able to leave the hospital?
3． Shall用于第二、第三人稱，表示說話人給對(duì)方命令、警告、允諾或威脅。如：
You shall fail if you don?t work harder. （警告）
He shall have the book when I finish reading. （允諾） He shall be punished. （威脅）
4． Should表示勸告、建議、命令，其同義詞是ought to；在疑問句中，通常用should
代替ought to。如：
You should go to class right away. Should I open the window?
Should的含義較多，用法較活，現(xiàn)介紹三種其特殊用法。請(qǐng)看下面的句子： ① I should think it would be better to try it again. 我倒是認(rèn)為最好再試一試。 ② You are mistaken, I should say. 依我看，你是搞錯(cuò)了。 ③ I should advise you not to do that. 我倒是勸你別這樣做。
�、� This is something I should have liked to ask you. 這是我本來想問你的。
從以上例句可以看出：情態(tài)動(dòng)詞should用于第一人稱時(shí)可以表示說話人的一種謙遜、客氣、委婉的語氣。
Should還可以用在if引導(dǎo)的條件從句，表示一件事聽起來可能性很小，但也不是完
全沒有可能。相當(dāng)于“萬一”的意思。從句謂語由should加動(dòng)詞原形構(gòu)成，主句謂語卻不一定用虛擬語氣。如：
�、� Ask her to ring me up if you should see her. 你萬一見到她，請(qǐng)讓她給我打個(gè)電話。 ⑥ If you should change your mind, please let us know. 萬一你改變主意，請(qǐng)通知我
們。
�、� Should I (If I should) be free tomorrow I will come. 萬一我明天有時(shí)間，我就來。 此外，Why(or How) + should結(jié)構(gòu)表示說話人對(duì)某事不能理解，感到意外、驚異等意思。意為“竟會(huì)”。如：
�、� Why should you be so late today? 你幾天怎么來得這么晚？ ⑨ — Where is Betty living? — 貝蒂住在哪里？ — How should I know? — 我怎么會(huì)知道呢？
�、� I don?t know why you should think that I did it. 我真不知道你憑什么認(rèn)為這件事
是我干的。
5． “should + have + 過去分詞”結(jié)構(gòu)一般表示義務(wù)，表示應(yīng)該做到而實(shí)際上沒有做到，
并包含一種埋怨、責(zé)備的口氣。如： She should have finished it.
I should have helped her, but I never could. You should have started earlier.
6） will和would的用法
1． 表示請(qǐng)求、建議等，would比will委婉客氣。如：
Would you pass me the book? 2． 表示意志、愿望和決心。如：
I will never do that again.
They asked if we would do that again.
3． 用“will be”和“will(would) + have + 過去分詞”的結(jié)構(gòu)表示推測(cè)，主要用于第二、
三人稱。前者表示對(duì)目前情況的推測(cè)，后者表示對(duì)已經(jīng)完成的動(dòng)作或事態(tài)的推測(cè)。如：
This will be the book you want. He will have arrived by now.
The guests would have arrived by that time. I thought you would have finished this by now. 4． Would可表示過去反復(fù)發(fā)生的動(dòng)作或某中傾向。Would表過去習(xí)慣時(shí)比used to正式，
并沒有“現(xiàn)已無此習(xí)慣”的含義。如： The wound would not heal.
During the vacation he would visit me every week. 5． 表料想或猜想。如：
It would be about ten when he left home. What would she be doing there?
I thought he would have told you all about it.
7） ought to的用法
1． Ought to表示應(yīng)該。如：
篇三：高一英語必修三 情態(tài)動(dòng)詞(含習(xí)題及解析)
情態(tài)動(dòng)詞全解析
一、何謂“情態(tài)動(dòng)詞”？
情態(tài)動(dòng)詞主要用來表示說話人的情感、態(tài)度等，是中學(xué)英語語法的重點(diǎn)，也是高考的熱點(diǎn)，
是單項(xiàng)填空必考的一個(gè)知識(shí)點(diǎn)。情態(tài)動(dòng)詞在近五年高考中主要考查四點(diǎn)：情態(tài)動(dòng)詞表示推測(cè)
和可能性的用法；情態(tài)動(dòng)詞與虛擬語氣；情態(tài)動(dòng)詞的表達(dá)“情感、態(tài)度、語氣等”，情態(tài)動(dòng)詞
表示 “必要性”等方面的用法。
二、情態(tài)動(dòng)詞的特點(diǎn)
1.沒有人稱和數(shù)的變化。
2. 有些情態(tài)動(dòng)詞有過去式的變化:
e.g. will → would , can → could , may→ might , dare → dared
三、情態(tài)動(dòng)詞的否定形式
情態(tài)動(dòng)詞+ not +動(dòng)詞原形can not: can't , must not: mustn't , need not : needn't
四、情態(tài)動(dòng)詞的用法及相互間的區(qū)別（注意：這是�？嫉目键c(diǎn)）
1. can , be able to be able to 表示經(jīng)過努力后, 能夠做到; be able to 有多種形式的變化。
can
1). 表示體力或腦力方面的能力;
2). 表示允許、可能性。
could 是can的過去式, 表示過去有能力及過去存在的可能性 ; 用于疑問句表示委婉地提出
問題。
1) The fire spread through the hotel very quickly but everyone ____ get out.
A. had to B. would C. couldD. was able to
2) -Will you stay for lunch?
-Sorry, __. My brother is coming to see me.
A. I mustn'tB. I can't C. I needn't D. I won't
2.may 表示詢問或說明一件事可不可做; 表示某事有可能發(fā)生。might是may的過去式; 用
在疑問中比may委婉、客氣。
1) -May I take this book out of the reading-room?
-No, you mustn't.( Yes, you may.)
2) -Might I make a suggestion? -Yes, you may.
3. must
1). 表示必須要做的事: 必須
2) 表示很有把握的推斷: 一定, 準(zhǔn)是。have (has)to : have (has)got to 必須, 不得不。過
去式: had to
3) -Must I get to the station before three o'clock?
-Yes, you must. ( No, you needn't. )
4) I'm afraid you will have to wait a while.
5) She must be in the classroom now.
6) Mary ____ be in Paris, I saw her in town only a few minutes ago.
A. mustn't B. shouldn'tC. can'tD. may not
4. shall
1) 在疑問句中, 用于第一、三人稱表示說話人征求對(duì)方的意見或向?qū)Ψ秸?qǐng)求。
2) 用于二、三人稱,表示說話人給對(duì)方的 命令、警告、允諾等概念。
1) - Shall I place an order with you now? -No, you needn’t.
-Shall he turn down the radio a bit? -
Yes, please.(No, please don't.)
2) You shall have the English book as soon as I finish it.
3) Everything that he owns shall be taken away from him.
4) Your brother seldom comes to see you, ____?
A. does he B. doesn't he C. will he D. isn't he
5) It's a fine day. Let's go fishing, ____?
A. won't we B. will we
C. don't we D. shall we
5. should 應(yīng)該 ; 應(yīng)當(dāng)
1) You should listen to the doctor's advice.
2) You should study the article carefully.
6. will, would
1) 在疑問句中用于第二人稱,表示說話人向?qū)Ψ教岢稣?qǐng)求或詢問。用would語氣更加婉轉(zhuǎn)。
2) will 表示現(xiàn)在的習(xí)慣性動(dòng)作或狀態(tài); would 表示過去的習(xí)慣性動(dòng)作或狀態(tài)。
3) will 用于各種人稱, 表示 意志、意愿、決心、允諾; would 表示過去時(shí)間的 意志、意愿、......。
(1) Don't smoke in the meeting room, ___ you?
A. do youB. will youC. can you D. could you
-Will you come with me?-Yes, I will.(I am sorry , I can't.)
(2) -Would you tell us something about yourself? -Yes, I will.
(3) - It's my birthday tomorrow. Don't forget to come to my party.
- _____ .
A. I don't B. I won't C. I can't D. I haven't
7. ought to 應(yīng)該; 應(yīng)當(dāng)
1) You oughtn't to smoke too much.
2) She ____ for what she has done.
A. ought to praise B. ought be praised
C. ought to have praised D. ought to be praised
8. dare1. dare to come2. dare come
1) He dare not tell the truth.
2) He doesn't dare to come out at night.
3) I don't know whether he ____ try.
A. dare B. needs C. wants D. is allowed
9. need
1). 作為情態(tài)動(dòng)詞:必須
2). 作為實(shí)義動(dòng)詞: 需要
A.主語是人 need( to do something ; to be done by somebody)
B. 主語是事物 need ( doing; to be done)
1) -Do they need to take any books with them?
-No, they don't need to.
2) -Need we buy any new equipment? -No, we needn't.
3) This farm tool needs repairing.
This farm tool needs to be repaired.
4) -Shall I tell John about it ?
- No, you ___ . I've told him already.
A. needn't B. wouldn't
C. mustn'tD. shouldn't
5) It's a fine day. You ____ take a raincoat with you.
A. can't B. mustn't
C. needn't D. may not
[★★★]五、情態(tài)動(dòng)詞的解題例析
(1) 認(rèn)真審題，結(jié)合所給出的語境，正確把握說話者的語氣、情感、態(tài)度、觀點(diǎn)等。
(2) 認(rèn)真思考所給選項(xiàng)中情態(tài)動(dòng)詞的基本特征和用法，并結(jié)合語境推敲答案。
(3) 要注意把握時(shí)間概念。
情態(tài)動(dòng)詞無論是表達(dá)“推測(cè)和可能性”，還是表達(dá)“虛擬”這一概念，只要是對(duì)過去已經(jīng)發(fā)生的
事情進(jìn)行描述，一律用“情態(tài)動(dòng)詞+have done”這一結(jié)構(gòu)；對(duì)現(xiàn)在或?qū)淼氖虑檫M(jìn)行描述，用“情
態(tài)動(dòng)詞+動(dòng)詞或系動(dòng)詞原形”。例如：
（NMET2008山東，24）Thank you for all your hard work last week. I don’t think we ______ it
without you.
A. can manage B. could have managed
C. could manage D. can have managed
根據(jù)題干中所給出的時(shí)間last week可知我們已經(jīng)做完了工作，已經(jīng)完成，故排除A、C兩
項(xiàng)，再結(jié)合could have done表示虛擬語氣以及與前面的I don’t think…，故說話者想表達(dá)的
意思是：離開了你，我們本不可能完成這項(xiàng)工作。故答案為B項(xiàng)。
★下面我們來看看�？嫉�'一些情態(tài)動(dòng)詞★
以下試題均來源于往年的高考試題，具有很強(qiáng)的針對(duì)性
(1) must表示推測(cè)，意為“一定……”，只能用于肯定句中。 must have done意為：一定做過
某事或某事肯定發(fā)生了。 例如：
—She looks very happy. She ______ have passed the exam.
—I guess so. It’s not difficult after all.
A. should B. could C. must D. might
【解析】句意為：她看上去很高興，一定是通過了考試。
【答案】C
(2) should (not) / ought (not) to在中表示根據(jù)常規(guī)或常識(shí)推測(cè)，表示“某事應(yīng)該或不應(yīng)該發(fā)
生”，語氣比must或can’t / couldn’t稍弱。
例如：—How’s your tour around the North Lake? Is it beautiful?
—It ________ be, but it is now heavily polluted.
A. will B. would C. should D. must
【解析】should此處表示推測(cè)，意為“應(yīng)該”。
【答案】C
�、赥here _________ be any difficulty about passing the road test since you have practiced a lot in
the driving school.
A. mustn’t B. shan’t C. shouldn’t D. needn’t
【解析】句意：既然你在駕校進(jìn)行了大量訓(xùn)練，那么通過道路測(cè)試按理不應(yīng)該有困難。
【答案】C
(3) can, could表達(dá)推測(cè)時(shí)，一般用于疑問句和否定句中；can用于肯定句中表示一種理論上
的可能性，并不牽涉是否真的會(huì)發(fā)生，在這種用法中can只能與動(dòng)詞原形連用；could用于
肯定句中，語氣比may/ might更弱。例如：
①You ______ be hungry already — you had lunch only two hours ago!
A. wouldn’t B. can’t C. mustn’t D. needn’t
�、赟he ______ have left school, for her bike is still here.
A. can’t B. wouldn’t C. shouldn’t D. needn’t
③It is usually warm in my hometown in March, but it _____ be rather cold sometime.
A. must B. can C. should D. would
�、躊eter ____ be really difficult at times even though he’s a nice person in general.
A. shall B. should C. can D. must
【解析】①② 兩個(gè)考題中can用于中表示否定的推測(cè)，意為：不可能，一定不會(huì)； ③④兩個(gè)
考題中can表示理論上的可能性，翻譯為：有時(shí)候會(huì)……。
【答案】① B ② A ③ B ④ C
(4)may (not) / might (not)表達(dá)一種不太把握的推測(cè)，意為“或許，可能”；might的語氣比may
較婉轉(zhuǎn)。例如：
① Liza ___ well not want to go on the trip --- she hates traveling.
A. will B. canC. mustD. may
【解析】may well為固定搭配，意為：很可能，極有可能。
【答案】D
�、� Although this ____ sound like a simple task, great care is needed.
A. mustB. may C. shallD. should
【解析】這聽起來或許是一項(xiàng)簡單的任務(wù)，但卻需要極大的細(xì)心。
【答案】B
�、邸狪 can’t find my purse anywhere.
—You __ have lost it while shopping.
A. may B. can C. should D. would
【解析】結(jié)合語境可知，回答者是在提醒對(duì)方：或許購物時(shí)把錢包丟了。
【答案】A
（二）表達(dá)虛擬語氣的情態(tài)動(dòng)詞
對(duì)過去的一種結(jié)果的假設(shè)或虛擬，用情態(tài)動(dòng)詞+have done這一結(jié)構(gòu)，常用的有以下幾個(gè)情態(tài)
動(dòng)詞：
(1) should (not) / ought (not) to have done本（不）應(yīng)該做某事，但卻沒有做或做了，含有責(zé)
備或后悔之意。例如：
—I’m sorry. I _________at you the other day.
—Forget it. I was a bit out of control myself.
A. shouldn’t shoutB. shouldn’t have shouted
C. mustn’t shoutC. mustn’t have shouted
【解析】對(duì)不起，我那天本不應(yīng)該對(duì)你大喊大叫的。
【答案】B
(2) could have done本來能夠做某事但未做。例如：
Thank you for all your hard work last week. I don’t think we ______ it without you.
A. can manage B. could have managed
C. could manage D. can have managed
【解析】根據(jù)題干中所給出的時(shí)間last week可知我們已經(jīng)做完了工作，已經(jīng)完成，故排除
A、C兩項(xiàng)，再結(jié)合could have done表示虛擬語氣以及與前面的I don’t think…，故說話者想
表達(dá)的意思是：離開了你，我們本不可能完成這項(xiàng)工作。
【答案】B
(3) needn’t have done本沒有必要做某事但卻做了。要注意needn’t do則表達(dá)“沒有必要去做
某事”，時(shí)間上應(yīng)該是現(xiàn)在或?qū)�。例如�?/p>
�、佟狢atherine, I have cleaned the room for you.
—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
【解析】根據(jù)句意可知Catherine對(duì)對(duì)方為她打掃了房間表示感謝并提到對(duì)方不必為她打掃
房間。
【答案】B
② The boss has given everyone a special holiday, so we go to work tomorrow.
A. can’tB. mustn’t C. needn’tD. shouldn’t
【解析】老板給所有的員工放了假，所以我們明天不必再去上班。
【答案】C
(4)would (not) have done本來(不)會(huì)發(fā)生某事，但卻（發(fā)生了）或沒有發(fā)生。常用于虛擬條
件句或含蓄虛擬條件引導(dǎo)的虛擬語氣，表示對(duì)過去所發(fā)生事情結(jié)果的假設(shè)。例如：
He hesitated for a moment before kicking the ball, otherwise, he ________ a goal.
A. had scored B. scored
C. would scoreD. would have scored
【解析】句中otherwise為含蓄條件，相當(dāng)于if he had not hesitated for a moment before kicking
the ball，這是對(duì)過去的一種虛擬假設(shè)。
【答案】D
(5) might have done表示“本來可能……”，但實(shí)際上沒有發(fā)生的事。例如：
What a pity! Considering his ability and experience, he ________ better.
A. need have done B. must have done
C. can have done D. might have done
【解析】真是可惜！考慮到他的能力和經(jīng)驗(yàn)，他本來可以做得更好的。
【答案】D
（三）表達(dá)“情感、態(tài)度、語氣” 等方面的情態(tài)動(dòng)詞
1. must表達(dá)“情感、態(tài)度、語氣”主要有以下用法：
(1) 表示主觀的義務(wù)和必要，主要用于肯定句和疑問句，意思為“必須……，得……，要……”；
由must引起的疑問句，肯定回答要用must或have to， 否定回答要用needn’t或don’t have to,
意思是“不必”。另外，must與have to都可以表示“必須”這一含義。must表示一種主觀的需
要，而have to表示一種客觀的需要，意思是“不得不”，其否定形式是don’ have to。
例如： -What sort of house do you want to have? Something big?
--Well, it ______ be big--that's not important.
A. mustn't B. needn't C. can't D. won't
【解析】Something big?此處意為：Must it be big? 回答者的意思是：房子不必太大—那并不
重要。
【答案】B
(2) must的否定形式mustn’t表示禁止，意思是“不能，不許”。例如：
When I was young, I was told that I ______ play with matches
A. wouldn't B. needn't C. mustn't D. daren't
【解析】當(dāng)我年輕的時(shí)候，（家人）就一直告誡我千萬不要玩火柴。
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