情態(tài)動詞 精講精練（一）
can culd 能，會may might 可能，可以shall shuld 將要，應該must (主觀上)必須，一定will wuld 將要， 意愿ught t = shuld 應該
have t (客觀上)不得不，必須dare (daren’t) 敢need (needn’t) 需要，必要used t 過去常常
◆ need 和 dare既作情態(tài)動詞又作實意動詞
⑴ 作情態(tài)動詞 時后接動詞原形，且無人稱和數(shù)的變化;need沒有過去時形式，dare 有過去時 dared, 兩者的否定形式常為 ：needn’t 和 daren’t. 例如：a. I daren’t ask her fr a rise. b. I wnder whether he dare stand up in public.c. I wnder whether he need send it immediately.d. I need hardly tell yu that the wrk is dangerus.e. Yu needn’t finish that wrk tday.⑵ 行為動詞:常構(gòu)成以下形式
sb. need t d; dare t dsth. need t be dne / sth. need ding 表示某物（被）… 請看例句:a. Hw did yu dare t tell her that? b. I dn’t knw hw she dares t wear that dress. c. D yu need any help?d. The garden desn’t need watering at the mment.= The garden desn’t need t be watered at the mment.e. The bike needs repairing / t be repaired.
Hw dare yu say such a thing? （ ）Hw dare yu t say such a thing? （ ）
He daren’t t speak English befre such a crwd, did he? （ ）He daren’t speak English befre such a crwd, dare he? （ ）
Nbdy need t be afraid f catching the disease. （ ）Nbdy need be afraid f catching the disease. （ ）
These dishes need be cleaned carefully. （ ）These dishes need t be cleaned carefully. （ ）These dishes need cleaning carefully. （ ）
●輕輕告訴你： ⑴ need 疑問句的回答:-- Need I finish the wrk tday?--Yes, ________________.N, ________________.N, ________________.⑵ shall 和 must 疑問句的否定回答：-- Shall I tell Jhn abut it?-- N, yu ___________________.-- Must we d it nw? --N, yu _____________________.
yu dn’t have t
needn’t /dn’t have t
◆表示推測——情態(tài)動詞的重要用法
1. Yu must be Mr. Smith--I was tld t expect yu here.2. He must have knwn what we wanted.3. We may have read the same reprt.4. He can’t have slept thrugh all that nise.5. There’s smene utside----wh can it be?6. What can they be ding?7. These pills might help t cure yur disease.8. Yu culd be right, I suppse.
1. I dn't knw where she is, she _______ be in Wuhan. 2. At this mment, ur teacher ________________ur exam papers. 3. The rad is wet. It ___________________ last night.4. Yur mther ________________________ fr yu.5. Philip __________________________ seriusly in the car accident. 6. -- Linda has gne t wrk, but her bicycle is still here.　-- She _______________________ (g) by bus.7. Mike ________________ his car, fr he came t wrk by bus this mrning.
must be marking
must have rained
must have been lking
may (might) have been hurt
may (might) have gne
can’t have fund
1. I thught yu _______ like smething t read, s I have brught yu sme bks. A. may B. might C. wuld D. must 2. Where is my pen? I ______it. A. might lse B. wuld have lst C. shuld have lst D. must have lst3. I didn’t hear the phne. I _________ asleep.A. must be B. must have been C. shuld be D. shuld have been4. It’s nearly seven ’clck . Jack _________ be here at any mment.A. must B. need C. shuld D. culd
5. -- There were already five peple in the car, but they managed t take me as well. -- It ______a cmfrtable jurneyA. can’t be B. shuldn’t be C. mustn’t have been D. culdn’t have been ● 輕輕告訴你：不同的“肯定”程度可按下列層次排列： He is at hme. (事實) He must be at hme.（非?？隙ǖ耐茢啵?He culd be at hme.（很可能）
He ught t be at hme.（很可能） He may be at hme.（僅僅可能而已） He might be at hme.（或許, 非常不確定） He might nt be at hme.（也許不在家）He may nt be at hme. （比might可能性稍大） He culdn’t be at hme.（很可能不在家） He can’t be at hme.（一定不在家）He isn't at hme.（事實）
◆表示能力、許可的情態(tài)動詞的用法
表示能力: can, culd, be able t*be able t 能用于多種時態(tài)。can / culd 只能表示現(xiàn)在或過去的能力。*was / were able t : “設法做成某事”,相當于 managed t d sth. / succeeded in sth./ding sth./be successful in sth./ding sth.
1. A cmputer _______ think fr itself; it must be tld what t d.A. can’t B. culdn’t C. may nt D. might nt
2. The fire spread thrugh the htel very quickly but they ______ get ut.had t B. wuld C. culd D. was able t
3. They will _______ run this machine n their wn in three mnths.A. can B. culd C. may D. be able t4. That big cinema ______ seat 2,000 peple.A. can B. shuld C. ught t D. is able t
悄悄告訴你：表示許可: may / might, can / culd might, culd 比較委婉, 一般多用于疑問句. can, may 表達的語言比較隨便. 在以culd, might 表示征詢對方意見或表示請求時，回答應相應使用can, may.
5. -- Culd I brrw yur dictinary? -- Yes, f curse yu ______.A. might B. will C. can D. shuld6. -- Might I watch TV after supper? -- Yes, yu _____.A. may B. must C. might D. can
◆表示否定的情態(tài)動詞的用法:這是考察情態(tài)動詞的熱點之一。
mustn’t 不準, 禁止 ; needn’t 沒必要 ( = dn’t have t );can’t 不能; 不可能; may nt 不可以; 可能不; shuldn’t 不應該 ( = ught nt t )
7. Yu ______ return the bk nw. Yu can keep it till next week if yu like.A. can’t B. mustn’t C. needn’t D. may nt8. Jhnny, yu ______ play with the knife, yu ______ hurt yurself.A. wn’t ; can’t B. mustn’t ; may C. shuldn’t ; must D. can’t ; shuldn’t
9. --Will yu stay fr lunch? --Srry, _____. My brther is cming t see me.A. I mustn’t B. I can’t C. I needn’t D. I wn’t10. --May I pick a flwer in the garden? -- ______.A. N, yu needn’t B. Nt, please.C. N, yu mustn’t D. N, yu wn’t
◆情態(tài)動詞：shall, will 的多種意義
* 均可表示將來。 過去時為 shuld, wuld.
* shall 可表示必須、命令、 警告或征詢意見.
* will 可表示意愿、常出現(xiàn)的動作、在疑問句 中表示請求和建議.
11. He ______ be punished if he disbeys.12. We are nt ging t quarrel at all if yu ____ nly let me speak.13. --Sir, ____ he g r stay? --Let him g.A. will B. shall C. might D. culd
14. The dr _______ pen.15. Rnald ______ stay in his small garden fr a lng time every day in the past.A. culd B. might C. shuld D. wuld16. Yu ______ have the bk after I read it.
1. Put n mre clthes. Yu _____ be feeling cld with nly a shirt n. A. can? B. culd? C. must? D. wuld2. -- Must I drive t his huse and pick up the children? ? -- N, _______. A. yu shuldn't? B. yu might nt ?C. yu needn't D. yu mustn't3. We didn't see Tm at the meeting yesterday. He ??????? it. A. mustn't have attended? B. cannt have attended C. needn't have attended? D. wuld have nt attended
4. We ??????? play chess than bridge. Sme f us dn't knw hw t play bridge. A. had better? B. wuld better?C. wuld rather? D. had rather
5. There is smene kncking at the dr. _____ it be Tm? A. can? B. must? C. shuld D. ught t6. If yu live in twn, it is ften faster than a car and yu ___ wrry abut parking. A. must nt? B. may nt? C. shuld nt?? D. dn't have t

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