初中情態(tài)動(dòng)詞練習(xí)題及答案

1、精選優(yōu)質(zhì)文檔-傾情為你奉上初中情態(tài)動(dòng)詞練習(xí)題及答案一、單項(xiàng)選擇情態(tài)動(dòng)詞1The weather turned out to be fine. I _ the trouble to carry the umbrella with me.Ashould have takenBmust have takenCcouldn't have takenDneedn't have taken【答案】D【解析】【詳解】考查情態(tài)動(dòng)詞 + have done。句意：天氣轉(zhuǎn)晴了。我本不必費(fèi)心把傘帶在身邊。A. should have taken本應(yīng)該做某事，而實(shí)際上沒(méi)做； B. must have

2、taken對(duì)過(guò)去發(fā)生的事情的肯定猜測(cè)；C. couldn't have taken不可能；D. needn't have taken本來(lái)不需要，故選D。2Most of the top leaders expressed a common desire at the UN conference, _ that different cultures _ coexist with tolerance.Athe one ; mustBthe one ; shouldCone ; mustDone ; should【答案】D【解析】【詳解】考查替代和情態(tài)動(dòng)詞。句意：大多數(shù)高層領(lǐng)導(dǎo)人在聯(lián)

3、合國(guó)大會(huì)上表達(dá)了一個(gè)共同的愿望，即不同的文化應(yīng)該與寬容共存。大多數(shù)高層領(lǐng)導(dǎo)人在聯(lián)合國(guó)大會(huì)上表達(dá)了一個(gè)共同的愿望，即不同的文化應(yīng)該與寬容共存。替代表泛指的單數(shù)名詞，通常用one替代。此處用one替代前面的a desire，是同位語(yǔ)；結(jié)合句意第二空用情態(tài)動(dòng)詞should“應(yīng)該”。故選D?！军c(diǎn)睛】that ,it ,one 代指前面的名詞時(shí)的用法1.one 指代前面出現(xiàn)的可數(shù)名詞，是泛指?？梢院凸谠~連用，也可以有自己的定語(yǔ)。一般不能用做特指，但和定冠詞連用時(shí)可以是特指。如： Please show me the cup, the red one on the shelf. 2.It 指代前面提到的單

4、數(shù)名詞，相當(dāng)于the one。當(dāng)one是泛指的時(shí)候，指的是同名異物，it是指同一物體.如： -Do you want the cup ? -Yes ,I want it. 3.that通常用來(lái)代替前面出現(xiàn)的可數(shù)名詞不可數(shù)名詞,主要是用來(lái)避免重復(fù)。如： The weather of Guangzhou is hotter than that of Beijing.3Mr. Baker, some students want to see you. _ they wait here or outside?AMayBShouldCShallDWill【答案】C【解析】【詳解】考查Shall的用法。句

5、意：貝克先生，有些學(xué)生想見(jiàn)你。他們是在這里等還是在外面等?Shall用于第一、第三人稱(chēng)疑問(wèn)句中，表示說(shuō)話(huà)人征求對(duì)方的意見(jiàn)或向?qū)Ψ秸?qǐng)示。故選C?！军c(diǎn)睛】Shall的用法Shall作為助動(dòng)詞，一般用于第一人稱(chēng)和We，表示一個(gè)將來(lái)的動(dòng)作，構(gòu)成將來(lái)時(shí)態(tài)。Shall后面接動(dòng)詞原形。例如：（1）I shall think it over and Let you know my idea.我將考慮一下此事，然后告訴你我的想法。（2）We shall have a good time in the park.我們?cè)诠珗@里會(huì)玩得很高興的。常考的特殊用法1. Shall用于第一人稱(chēng)，表示征求對(duì)方的意愿。如：Wha

6、t shall we do this evening?2. Shall用于第一、第三人稱(chēng)疑問(wèn)句中，表示說(shuō)話(huà)人征求對(duì)方的意見(jiàn)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(chēng)，表示說(shuō)話(huà)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.

7、 （威脅）4- Oh, my God! I just missed the last bus back home.- Thats really bad. Im sure you _ it, but you just didnt hurry up.Ahad caughtBcould have caughtCcould catchDcan catch【答案】B【解析】【詳解】考查情態(tài)動(dòng)詞+have done結(jié)構(gòu)。句意：哦,我的上帝!我剛好錯(cuò)過(guò)了回家的末班車(chē)。這是非常糟糕的。我肯定你能趕上，但你就是不抓緊。could have done“本來(lái)能做而沒(méi)有做”。故選B。5Ann said wheneve

8、r her father was unhappy he _ go out and buy something, usually something large and useless.AshouldBcouldCwouldDmight【答案】C【解析】【詳解】考查情態(tài)動(dòng)詞。句意：安說(shuō)無(wú)論什么時(shí)候她父親不高興的時(shí)候，他就會(huì)出去買(mǎi)些東西，通常是一些又大又沒(méi)用的東西。A. should應(yīng)該；B. could能；C. would總是，愿意；D. might可能。此處表示過(guò)去經(jīng)常習(xí)慣做某事，故選C。6The accident which left 15 people on board dead _ if

9、 both the angry female passenger and the bus driver had kept calm.Ashould have avoidedBshould be avoidedCcould have avoidedDcould have been avoided【答案】D【解析】【詳解】考查“情態(tài)動(dòng)詞+完成式”。句意：如果憤怒的女乘客和巴士司機(jī)保持冷靜，這起導(dǎo)致15人死亡的事故本來(lái)是可以避免的。could have done“本來(lái)能做而沒(méi)有做”，且句子主語(yǔ)The accident和謂語(yǔ)動(dòng)詞avoid之間是被動(dòng)關(guān)系，結(jié)合句意可知答案為D?！军c(diǎn)睛】情態(tài)動(dòng)詞+ hav

10、e done結(jié)構(gòu)：1.“must + have + 過(guò)去分詞”表示對(duì)過(guò)去發(fā)生的事情或狀態(tài)進(jìn)行推測(cè)，語(yǔ)氣比較堅(jiān)定，通常只用于肯定句。如：It must have rained last night,for the ground is wet.2.“can / could + have + 過(guò)去分詞”表示對(duì)過(guò)去某種情況的懷疑或不確定。can和could一般用于否定句和疑問(wèn)句，could的語(yǔ)氣較can弱。如：He can't have finished the work so soon.3.“may / might + have + 過(guò)去分詞”表示對(duì)已發(fā)生的動(dòng)作或存在的狀態(tài)進(jìn)行不肯定的推測(cè)，

11、might的語(yǔ)氣比may弱一點(diǎn)。這種結(jié)構(gòu)主要用于肯定句和否定句，疑問(wèn)句改用can或could。如：They may not have known it beforehand.4.“need + have + 過(guò)去分詞”表示過(guò)去做了不必做或不需要做的事情，或過(guò)去做某事純屬多余。如：I needn't have bought so much wineonly five people came.5.“should / ought to + have + 過(guò)去分詞”表示過(guò)去本該做某事但沒(méi)做，其否定式表示過(guò)去不該做某事但做了，這種句式含有不滿(mǎn)或責(zé)備之意，ought to的語(yǔ)氣比should強(qiáng)一些

12、。如：You ought to / should have studied harder. 你本應(yīng)該更努力學(xué)習(xí)的.（但沒(méi)有）He oughtn't to / shouldn't have done that. 他本來(lái)就不該做那件事.（可是做了）6.“would have 過(guò)去分詞”表示對(duì)過(guò)去的某種情況進(jìn)行猜測(cè)，或本來(lái)要做某事卻因某種原因未做成，通常用來(lái)說(shuō)明某一情況，但不像用should或ought to那樣含有責(zé)備之意。如：I guess the poet would have been about twenty when she wrote her first poem.An

13、other worker wouldn't have acted like that.7-Hi, Johnson, any idea where Susan is?-It is class time, so she _ in the classroom now.Acan beBmust have beenCmight have beenDshould be【答案】D【解析】考查情態(tài)動(dòng)詞的用法。A. can be可能，可以是；B. must have been一定（對(duì)過(guò)去事實(shí)肯定的推測(cè)）；C. might have been可能（對(duì)過(guò)去事實(shí)肯定的推測(cè)）；D. should be應(yīng)該是。句

14、意：知道蘇珊在哪里嗎？現(xiàn)在是上課時(shí)間，她應(yīng)該在教室里。故答案選D。8One of our rules is that every student _ wear school uniform while at school.AmightBcouldCshallDwill【答案】C【解析】【詳解】考查情態(tài)動(dòng)詞辨析。句意：我們其中一條規(guī)則要求每個(gè)學(xué)生在校期間都要穿校服。shall可以表示“命令，警告，強(qiáng)制要求；允諾；法律，規(guī)定要做”，結(jié)合句意可知C正確。9-He was satisfied with the result, wasn't he?-No. It was so difficult

15、 that he _have passed it.Ashouldn'tBmustn'tCcouldn' tDwouldn't【答案】C【解析】【詳解】考查情態(tài)動(dòng)詞。A. shouldn't 不應(yīng)該；B. mustn't禁止，不允許；C. couldn' t 不可能；D. wouldn't不會(huì)。句意：-他對(duì)結(jié)果很滿(mǎn)意，是嗎? -不。考試太難了，他不可能通過(guò)。固定結(jié)構(gòu)：couldn' t have done“不可能做某事”，此處是對(duì)過(guò)去事情有把握的否定推測(cè)。故選C?！军c(diǎn)睛】情態(tài)動(dòng)詞+ have done結(jié)構(gòu)：1.“must +

16、 have + 過(guò)去分詞”表示對(duì)過(guò)去發(fā)生的事情或狀態(tài)進(jìn)行推測(cè),語(yǔ)氣比較堅(jiān)定,通常只用于肯定句.如：It must have rained last night,for the ground is wet.2.“can / could + have + 過(guò)去分詞”表示對(duì)過(guò)去某種情況的懷疑或不確定.can和could一般用于否定句和疑問(wèn)句,could的語(yǔ)氣較can弱.如：He can't have finished the work so soon.3.“may / might + have + 過(guò)去分詞”表示對(duì)已發(fā)生的動(dòng)作或存在的狀態(tài)進(jìn)行不肯定的推測(cè),might的語(yǔ)氣比may弱一點(diǎn).這種

17、結(jié)構(gòu)主要用于肯定句和否定句,疑問(wèn)句改用can或could.如：They may not have known it beforehand.4.“need + have + 過(guò)去分詞”表示過(guò)去做了不必做或不需要做的事情,或過(guò)去做某事純屬多余.如：I needn't have bought so much wineonly five people came.5.“should / ought to + have + 過(guò)去分詞”表示過(guò)去本該做某事但沒(méi)做,其否定式表示過(guò)去不該做某事但做了,這種句式含有不滿(mǎn)或責(zé)備之意,ought to的語(yǔ)氣比should強(qiáng)一些.如：You ought to /

18、should have studied harder.你本應(yīng)該更努力學(xué)習(xí)的.（但沒(méi)有） He oughtn't to / shouldn't have done that.他本來(lái)就不該做那件事.（可是做了） 6.“would have 過(guò)去分詞”表示對(duì)過(guò)去的某種情況進(jìn)行猜測(cè),或本來(lái)要做某事卻因某種原因未做成,通常用來(lái)說(shuō)明某一情況,但不像用should或ought to那樣含有責(zé)備之意.如：I guess the poet would have been about twenty when she wrote her first poem.Another worker would

19、n't have acted like that.10It wasnt right to me that such near neighbors not know one another.AcouldBwouldCshouldDmight【答案】C【解析】【詳解】考查情態(tài)動(dòng)詞。句意：對(duì)我來(lái)說(shuō)，很不正常，如此近的鄰居居然不認(rèn)識(shí)。A. could可能，能夠；B. would將；C. should竟然；D. might可能，也許。should 作為情態(tài)動(dòng)詞，可以用來(lái)表示意外、驚喜或者在說(shuō)話(huà)人看來(lái)是不可思議的，常常譯為"竟會(huì)"、"居然"，住的這么近的鄰居

20、居然不認(rèn)識(shí)。表示意外，所以答案選C。【點(diǎn)睛】should的用法1、should 作為情態(tài)動(dòng)詞,通常用來(lái)表示現(xiàn)在或?qū)?lái)的責(zé)任或義務(wù),譯作“應(yīng)該”、“應(yīng)當(dāng)”,這時(shí)它可以和 ought to, be supposed to 互換使用.例如：You should （= ought to ） tell your mother about it at once.2、should 作為情態(tài)動(dòng)詞,可以用在條件狀語(yǔ)從句中,表示語(yǔ)氣較強(qiáng)的假設(shè),譯作“萬(wàn)一”、“竟然”,這時(shí)也可將 should 置于從句之首,即將 should 放在主語(yǔ)前面,而省略從屬連詞 if。例如：If you should fail to c

21、ome, ask Mrs Chen to work in your place. （= Should you fail to come, ask Mrs Chen to work in your place. ）3、should 作為情態(tài)動(dòng)詞,可以表示謙遜、客氣、委婉之意,譯為“可”、“倒”。例如：I should say that it would be better to try it again.4、should 作為情態(tài)動(dòng)詞,可以用來(lái)表示意外、驚喜或者在說(shuō)話(huà)人看來(lái)是不可思議的.尤其在以 why, who, how 等開(kāi)頭的修辭疑問(wèn)句或某些感嘆句中常常譯為“竟會(huì)”、“居然”。例如：How

22、 should I know it ? 我怎么會(huì)知道這件事?5、should 作為情態(tài)動(dòng)詞,可以用來(lái)表示有較大可能實(shí)現(xiàn)的猜測(cè)、推論,通常譯為“可能”、“總該吧”,相當(dāng)于 be expected to 。例如：They should be home by now, I think. 我想現(xiàn)在他們總該到家了吧。6、should 作為情態(tài)動(dòng)詞,用在由 so that, for fear that, lest 引導(dǎo)的目的狀語(yǔ)從句和 in case （that） 引導(dǎo)的條件狀語(yǔ)從句中,有“能夠”、“可能”、“會(huì)”之意。例如：They got up early so that they should （=

23、 could/ might） catch the first bus in time.7、should 作為情態(tài)動(dòng)詞,可以用于下列虛擬語(yǔ)氣句中：(1） 用在表示與將來(lái)事實(shí)相反的條件狀語(yǔ)從句中,構(gòu)成“ If should （do sth）, would/ could/ might （do sth.） ”句式。(2) 用在 suggest （propose）, arrange, plan, decide, advise, order, demand, request, desire, insist 等表示“建議”、“要求”、“命令”、“決定”、“安排”、“計(jì)劃”、“主張”的動(dòng)詞后面接的賓語(yǔ)從句中。

24、這里的 should 也可以省略。本句中should 作為情態(tài)動(dòng)詞，可以用來(lái)表示意外、驚喜或者在說(shuō)話(huà)人看來(lái)是不可思議的，常常譯為"竟會(huì)"、"居然"，住的這么近的鄰居居然不認(rèn)識(shí)。表示意外，所以答案選C。11The professor warned the students that on no account _ use mobile phones in his class.Ashould theyBthey shouldCdare theyDthey dare【答案】A【解析】【詳解】考查部分倒裝和情態(tài)動(dòng)詞。句意：這位教授警告學(xué)生們，在他的課堂上，決不應(yīng)

25、該使用手機(jī)。on no account意為“決不”，否定詞放在句首，句子使用部分倒裝，排除B、D項(xiàng)；這里表示應(yīng)該，故選A。12Lack of sleep _ lead to weakened immunity and memory, and also slow physical growth.AshallBmustCshouldDcan【答案】D【解析】【詳解】考查情態(tài)動(dòng)詞辨析。句意：睡眠不足會(huì)導(dǎo)致免疫力和記憶力下降，還會(huì)減緩身體發(fā)育。A. shall將；B. must必須；C. should應(yīng)該；D. can會(huì)，表示理論上或是邏輯判斷上，用can，故選D。13_ the woman with

26、 the baby come over? We have a seat here.Thank you, sir. Actually I do have my seat here. But my baby likes to look out of the window.AWouldBShallCMustDMay【答案】A【解析】【詳解】考查情態(tài)動(dòng)詞。句意：那位抱小孩的女士，要不來(lái)這邊吧?這兒有個(gè)座位。謝謝，實(shí)際上我有座位的，只是我的孩子喜歡看窗外。would表示婉轉(zhuǎn)的請(qǐng)求，征求對(duì)方的意見(jiàn)，Shall提問(wèn)一般只用于第一人稱(chēng)，我們常說(shuō)Shall I.或者 Shall we；may表示請(qǐng)求對(duì)方允許。故

27、選A?！军c(diǎn)睛】would的用法1.would 最常見(jiàn)的用法是：相對(duì)于一個(gè)過(guò)去時(shí)間點(diǎn)的后來(lái)“將要”做什么，比如：He said he would meet me at the station. 他說(shuō)他會(huì)在車(chē)站接我的。這句中的 would meet 是相對(duì)于 said （過(guò)去說(shuō)）之后要做的事情。又如：She thought she would have to ask someone for help. 她當(dāng)時(shí)想，她得找個(gè)人幫忙。14Its already 11 oclock , and he _ have been here half an hour ago.Maybe he got caught

28、 in the rain.AmustBought toCmayDcan【答案】B【解析】【詳解】考查情態(tài)動(dòng)詞。句意：已經(jīng)11點(diǎn)了，他半小時(shí)前就該到了。A. must have done必定做了（表示對(duì)過(guò)去的推測(cè)）；B. ought to have done 本應(yīng)該做的；C. may have done可能已經(jīng)做過(guò)某事；D. can have done本來(lái)可以做的（但沒(méi)有做），根據(jù)題意，故選B。15Whats wrong with you?Oh, I am sick. I _ so much ice cream just now.Ashouldnt eatBmustnt eatCcouldnt

29、have eatenDshouldnt have eaten【答案】D【解析】【詳解】考查情態(tài)動(dòng)詞和虛擬語(yǔ)氣。句意：你怎么了？我生病了，我剛才不應(yīng)該吃那么多冰激凌。A. shouldnt eat不應(yīng)該吃；B. mustnt eat禁止吃；C. couldnt have eaten不可能吃；D. shouldnt have eaten本來(lái)不應(yīng)該吃。根據(jù)just now可知，是發(fā)生在過(guò)去，故選D。16I phoned you yesterday morning. A girl answered, but I didnt recognize the voice.Oh, it _ my younger

30、 sister. She was in my room at that moment.Amust have beenBshould have beenCcould have beenDmay have been【答案】A【解析】【詳解】考查情態(tài)動(dòng)詞。句意：昨天上午我給你打電話(huà)。一個(gè)女孩回答的，但我沒(méi)聽(tīng)出誰(shuí)的聲音。哦，那一定是我妹妹。她那一刻正在我的房間里。情態(tài)動(dòng)詞加動(dòng)詞的現(xiàn)在完成式形式，表示對(duì)過(guò)去的推測(cè)。A. must have been表示一定做了某事。用于肯定推測(cè)；B. should have been 本應(yīng)該，表示應(yīng)該做而沒(méi)有做某事。C. could have been用于肯定句時(shí)，表示

31、可能做了某事。更常用于否定推測(cè)；D. may have been可能做過(guò)某事。表示可能性很小。結(jié)合語(yǔ)境判斷，表示非常肯定的推測(cè)，故選A。17Our English teacher is considerate，helpful，and warm-hearted，but sometimes she_ be angry at our silly mistakes.AshouldBmustCcanDshall【答案】C【解析】【詳解】考查情態(tài)動(dòng)詞。句意：我們的英語(yǔ)老師很體貼、樂(lè)于助人、熱心腸，但有時(shí)她可能為我們愚蠢的錯(cuò)誤而發(fā)火。can表示一種客觀的可能性，但不一定會(huì)發(fā)生，故C項(xiàng)正確。18No driv

32、ing after drinking is a rule that every driver _ obey in our country.AwillBshallCmayDcan【答案】B【解析】試題分析：考察情態(tài)動(dòng)詞。A. 將要 B.將要 C.可能D.可以。Will 表示請(qǐng)求、建議、意志、愿望和決心。Shall用于第二、第三人稱(chēng)，表示說(shuō)話(huà)人給對(duì)話(huà)的命令、警告、允諾或威脅。May表示請(qǐng)求和允許；用于祈使句表示決心；表示推測(cè)、可能性。Can表示能力；請(qǐng)求和允許。句意：酒后駕車(chē)是每一位駕車(chē)者在我們國(guó)家應(yīng)當(dāng)遵守的規(guī)則。故選B?？键c(diǎn)：考察情態(tài)動(dòng)詞19You rang me up at about 10:

33、00 last night, didn't you?No, I didn't phone you. It someone else.Amust have beenBcould beCmust beDcould have been【答案】A【解析】【詳解】考查情態(tài)動(dòng)詞+have done。句意：“昨晚10點(diǎn)左右你給我打了電話(huà)，是嗎？”“不，我沒(méi)給你打電話(huà)。一定是別人干的?！?must have done 是對(duì)過(guò)去發(fā)生的動(dòng)作最有把握的猜測(cè)，意思是“一定”，結(jié)合語(yǔ)境可知，我沒(méi)有打電話(huà)給你，因此猜測(cè)一定有別人給你打了電話(huà) 。故選A項(xiàng)。20_ you dis

34、turb me now? Im busy preparing a report. Terribly sorry, but I have something urgent to tell you.ANeedBShouldCMightDMust【答案】D【解析】【詳解】考查情態(tài)動(dòng)詞特殊用法。句意：你非要現(xiàn)在打擾我嗎？我正在準(zhǔn)備一份報(bào)告。真對(duì)不起，但是我怕有緊急事情告訴你。A. Need需要；B. Should 應(yīng)該；C. Might也許；D. Must必須；一定；偏偏，非得；根據(jù)語(yǔ)境可知must表示“偏偏，非得”符合上下文語(yǔ)境，用來(lái)指責(zé)對(duì)方。故D項(xiàng)正確。21I use a clock to wak

35、e me up because at six o'clock each morning the train comes by my house.Acouldn'tBmustn'tCshouldn'tDneedn't【答案】D【解析】試題分析：考查情態(tài)動(dòng)詞辨析。A不可能；B禁止，千萬(wàn)不能；C不應(yīng)該；D不需要；句意：我不需要使用鬧鐘叫醒我，因?yàn)槊刻煸缟狭c(diǎn)都有一列火車(chē)經(jīng)過(guò)我的家旁邊。根據(jù)句意可知我不需要使用鬧鐘。故D正確?？键c(diǎn)：考查情態(tài)動(dòng)詞詞義辨析22Will you read me a story, Mummy? -OK. You _have one if

36、 you go to bed as soon as possible.AmightBmustCcouldDshall【答案】D【解析】【分析】【詳解】考查情態(tài)動(dòng)詞。句意：媽媽?zhuān)o我講個(gè)故事好嗎？好，如果你盡快上床睡覺(jué)，我就給你講一個(gè)。might表示“或許”；must表示“必須”；could表示“可能”；shall在此處表示“允諾”，符合句意，故選擇D項(xiàng)。23I heard they went skiing in the mountains last winter.It true because there was little snow there.Amay be notBwont beCco

37、uldnt beDmustnt be【答案】C【解析】【詳解】考查情態(tài)動(dòng)詞辨析。句意：我聽(tīng)說(shuō)他們?nèi)ツ甓烊ド嚼锘?不可能是真的，因?yàn)槟抢飵缀鯖](méi)有雪。A. may be not可能不；B. wont be 不會(huì)；C. couldnt be不可能是； D. mustnt be禁止。根據(jù)because there was little snow there.可知這里是否定推測(cè)，couldnt be“不可能是”符合句意，故選C項(xiàng)。24Peter searched all the places where he_have left her iPad but it was all in vain.Am

38、ightBwouldCmustDshould【答案】A【解析】【詳解】考查情態(tài)動(dòng)詞辨析。句意：彼得找遍了所有他可能放她的iPad的地方，但都沒(méi)有找到。A. might可能；B. would將會(huì)；C. must必須，一定；D. should應(yīng)該。might have done表示對(duì)發(fā)生過(guò)的事情的推測(cè),意思是“可能已經(jīng)”或“也許已經(jīng)”,用于肯定句中。故選A。25Are you going on a holiday after the exam?Well, I havent decided yet. I _ find some other choices.AwouldBmightCmustDshou

39、ld【答案】B【解析】【詳解】考查情態(tài)動(dòng)詞辨析。句意：考試后你要去度假嗎?嗯，我還沒(méi)有決定。我可能會(huì)發(fā)現(xiàn)一些其他的選擇。A. would將會(huì)；B. might可能；C. must必須；D. should應(yīng)該。根據(jù)上文“ I haven't decided yet”可推斷，我可能還有別的選擇，表示可能性，might符合語(yǔ)境，故選B。26Sometimes it seems that doors _ be closed for you, but remember, they are not all locked.AmustBshouldCmayDneed【答案】C【解析】【詳解】考查情態(tài)動(dòng)

40、詞的用法。句意：有時(shí)候，似乎大門(mén)正對(duì)你關(guān)閉，但請(qǐng)記住并非所有大門(mén)都被上了鎖。A. must一定，必須；B. should應(yīng)該；C. may可能，也許；D. need需要。本句不宜使用絕對(duì)化的語(yǔ)氣，從sometimes，seems等提示詞可看出應(yīng)使用較為溫和的推測(cè)語(yǔ)氣，因此may be（或許，也許）符合語(yǔ)境，而過(guò)于絕對(duì)的推測(cè)，如must be（一定是，肯定是）應(yīng)予排除。此外should和need在此并不表示推測(cè)，更不符合本句語(yǔ)境。故選C。27How long shall we wait here?The first bus set out earlier than usual today and

41、 _ be here any time, I think.AshouldBmightCcanDmust【答案】A【解析】【詳解】考查情態(tài)動(dòng)詞表推測(cè)。句意：我們要在這里等多久？首班車(chē)比往常發(fā)車(chē)的時(shí)間早了，我推測(cè)可能會(huì)在任意時(shí)間到達(dá)。should 用于表示事實(shí)上的可能性或者推測(cè)，多用于肯定句。故選A。28May you live longer, grandpa!Thank you! It's the favorite wish I _.Ashould have waited forBmust have waited forCmay have waited forDcould have waited for【答案】D【解析】【詳解】考查情態(tài)動(dòng)詞+have done形式。 句意：爺爺祝您長(zhǎng)壽！謝謝，這是我能夠等待到的最喜歡的愿望。A. should have wai