【例40】 —I'll tell Mary about the result of her final examination. —You ________ her yesterday. A.ought to tell
B.may tell C.would have told
D.ought to have told 答案 D 2.could have done表示过去本能够做而实际上未做,含有责备或遗憾之意。 【例41】 —You ________ your teacher for help.He is kind-hearted. —Yes.A whole day was wasted. A.can
B.must have asked C.could have asked
D.shouldn't have asked 答案 C 3.might have done表示过去本可以做而实际上未做,含有责备或遗憾之意。 【例42】 He ________ you more help, even though he was very busy. A.might have given
B.might give C.may have given
D.may give 答案 A 4.needn't have done表示过去本没有必要做,但实际上做了,含有遗憾之意。 【例43】 Mark ________ have hurried.After driving at top speed, he arrived half an hour early.
(2010·天津) A.needn't
B.wouldn't
C.mustn't
D.couldn't
答案 A 【例44】 She was too nervous to reply, but fortunately she ________ anything. A.didn't need to say
B.needn't have said C.needn't say
D.doesn't need to say 答案 A 二、虚拟语气 (一)虚拟条件句的三种基本类型 1.若与现在事实相反,条件从句的谓语用一般过去时(be通常用were),主句谓语用“would (should,could,might)+动词原形”。 【例45】 If places ________ alike, there ________ little need for geographers. A.are;should be
B.are;will be C.were;be
D.were;would be 答案 D 2.若与过去事实相反,条件从句的谓语用过去完成时,主句谓语用“would (should,could,might)+have+过去分词”。 【例46】 If he ________, he ________ that food.Luckily, he was sent to the hospital immediately. A.was warned;would not take B.had been warned;would not have taken C.would be warned;had not taken D.would have been warned;had not taken 答案 B 3.若与将来事实相反,条件从句的谓语用一般过去时(be通常用were)或should+动词原形或were to+动词原形,主句谓语用“would (should,could,might)+动词原形”。 【例47】 What would happen if the earth ________ stop turning? A.will
B.would
C.could
D.were to 答案 D 【例48】 —I think it ________ much better if he ________ a job soon. —Yes, I agree with you. A.would be;got
B.is;will get C.would have been;had got
D.will be;got 答案 A 注:当条件从句使用“should+动词原形”这样的谓语时,主句也可用陈述语气或祈使句。 【例49】 Let me know if you ________ some more news. A.heard
B.would hear C.should hear
D.were to hear 答案 C 【例50】 If you ________ interested, I ________ you the whole story. A.should be;will tell
B.were to;will tell C.were;will tell
D.are;would tell 答案 A (二)错综时间虚拟条件句 所谓错综时间虚拟条件句即条件从句与主句所指时间不一致,如从句指过去,而主句却指现在或将来,此时应根据具体的语境,结合上面提到的三种基本类型对时态作出相应的调整。 【例51】 We should be having a terrible time tomorrow if we ________ everything ready by now. A.haven't got
B.hadn't got C.didn't
D.don't get 答案 B 【例52】 If he ________ quietly as the doctor instructed, he would not suffer so much now. A.lies
B.lay C.had lain
D.should lie 答案 C (三)含蓄虚拟条件句 假设情况不用if从句来表示,而是用without,but for,otherwise,or,but等表示一种含蓄条件。表示与现在或将来相反,用“would (should,could,might)+动词原形”;表示与过去相反用“would (should,could,might)+have+过去分词”。 【例53】 Without the air to hold some of the sun's heat, the earth at night ________ for us to live. A.would be freezing cold B.will be freezing coldly
C.would be frozen cold D.can freeze coldly 答案 A 【例54】 He hesitated for a moment before kicking the ball.Otherwise he ________ a goal. A.had scored
B.scored C.would score
D.would have scored 答案 D 【例55】 But for the storm, we ________ earlier. A.will arrive
B.should have arrived C.arrive
D.arrived 答案 B (四)虚拟语气的省略与倒装 有时可将连词if省略,而将从句中的were,should,had提到主语之前。 【例56】 What would have happened, ________, as far as the riverbank? A.Bob had walked farther B.if Bob should walk farther C.had Bob walked farther D.if Bob walked farther 答案 C 【例57】 ________ you be fired, your health care and other benefits will not be immediately cut off. A.Would
B.Should
C.Were
D.Will 答案 B 【例58】 ________ taken good care of, he would not have recovered so quickly. A.Has he been not
B.Had he not been C.Has not he been
D.Had he been not 答案 B (五)使用虚拟语气的几种从句 1.wish后的宾语从句和if only后的句子:表示与现在事实相反的愿望,从句谓语用一般过去时或过去进行时;表示与过去相反的愿望,从句谓语用过去完成时或“would (could)+have+过去分词”;表示将来没有把握或不太可能实现的愿望,常用“would (could)+动词原形”。 【例59】 How I wish every family ________ a large house with a beautiful garden!
A.has
B.had C.will have
D.has had 答案 B 【例60】 I wish I ________ you yesterday. A.seen
B.saw C.had seen
D.were to see 答案 C 【例61】 If only he ________ what I tell him, but he won't. A.had done
B.would have done C.would do
D.has done 答案 C 2.as if / as though引导的方式状语从句或表语从句:表示与现在事实相反,从句谓语用一般过去时或过去进行时;表示与过去事实相反,用过去完成时;表示将来的可能性不大,用“would (could)+动词原形”。 【例62】 It seems as if the sun ________ round the earth since it rises in the east and sets in the west. A.circles
B.is circling C.were circling
D.has been circling 答案 C 注:若从句所说的内容可能为事实,也可用陈述语气。 【例63】 The last bus has left.It seems as if we ________ to walk home. A.shall have
B.had C.would have
D.had had 答案 A 3.It's (high / about)time后的定语从句:从句谓语通常用一般过去时或“should+动词原形”(should不可省)。 【例64】 —I still haven't thanked Aunt Lucy for her present. —It's time you ________it. A.do
B.did
C.had
D.would 答案 B 4.would rather后的宾语从句:通常用一般过去时表示现在或将来的愿望,用过去完成时表示过去的愿望。 【例65】 George is going to talk about the geography of his country, but I'd rather he ________ more on its culture.(2010·江苏) A.focus
B.focused C.would focus
D.had focused 答案 B 5.一个“坚持”(insist)、两个“命令”(order,command)、三个“建议”(advise,suggest,propose)、四个“要求”(demand,require,request,ask)后的宾语从句:一般用”should+动词原形”(should可省)。 【例66】 The judge ordered that the thief ________ punished. A.would be
B.should be C.was to be
D.must be 答案 B 【例67】 He ________ that he could finish the job without any help. A.claimed
B.required C.demanded
D.asked 答案 A 注:动词insist,suggest后的宾语从句除可用虚拟语气外,也可用陈述语气,区别是:若从句内容尚未成为事实,用虚拟语气;从句内容已经成为事实,用陈述语气
【例68】 The young man insisted that he ________ nothing wrong and ________ free. A.did;set
B.had done;should be set C.do;be set
D.does;would be set 答案 B 【例69】 Jane's pale face suggested that she ________ ill and her parents suggested that she ________ a medical examination. A.be;should have
B.was;have C.should be;had
D.was;has 答案 B 6.It's+suggested,ordered,required,demanded等表示“建议、要求、命令”的动词的过去分词+that主语从句:常用“should+动词原形”(should可省)。 【例70】 It is requested that visitors ________ the exhibits. A.do not touch
B.not touch C.did not touch
D.will not touch 答案 B 7.“要求、建议、命令”等意义的名词后的表语从句或同位语从句:从句中的动词用“should+动词原形”(should可省)。 【例71】 The suggestion that he ________ at the meeting was that their working conditions ________. A.should make;would be improved B.made;be improved
C.made;were improved D.make;should be improved 答案 B 【例72】 He gave orders that everyone ________ in their weapons. A.turns
B.will turn C.would turn
D.should turn
答案 D 8.It's+important/necessary / impossible+that主语从句:常用“should+动词原形”(should可省)。 【例73】 It's possible that he ________ us some money, but it's impossible that he ________ us so much. A.will lend;will lend
B.will lend;should lend
C.should lend;will lend
D.should lend;should lend 答案 B 【例74】 —Don't you think it necessary that he ________ to Miami but to New York? —I agree, but the problem is ________ he has refused to. A.will not be sent;that
B.not be sent;that
C.should not be sent;what
D.should not send;what 答案 B 第六章 情态动词和虚拟语气
△情态动词和虚拟语气讲解△ 一、情态动词 (一)情态动词的基本用法 1.can / could (1)表“能力”。 【例1】 Just be patient.You ________ expect the world to change so soon.
(2010·全国Ⅰ) A.can't
B.needn't C.may not
D.whether 答案 A 【例2】 We ________ eat in a restaurant because none of us had any money on us. A.can't
B.couldn't C.may not
D.might not 答案 B (2)表“许可”。回答could的提问常用can,一般不用could。 【例3】 —Could I use your bike? —Yes, surely you ________. A.might
B.will
C.can
D.could 答案 C (3)could一般只表过去的能力;若表示过去的能力得到了实施,一般用was / were able to,不用could。 【例4】 The fire spread throughout the hotel very quickly but everyone ________ get out. A.had to
B.would C.could
D.was able to 答案 D 2.may / might (1)表“许可” (=can)。若表示“不可以、禁止”,用mustn't或can't。回答might的提问常用may,一般不用might。 【例5】 —________ I take the book out?
—I'm afraid not.
(2010·四川) A.Will
B.May
C.Must
D.Need 答案 B 【例6】 —Might I use your pen? —Yes, of course you ________. A.may
B.must
C.could
D.might 答案 A 【例7】 —May I watch TV now?
—No, you ________. A.can
B.mustn't
C.couldn't
D.mightn't 答案 B (2)may表“祝愿”,置句首,主谓要倒装。 【例8】 Good luck to you, and ________ all your wishes come true! A.can
B.may
C.must
D.might 答案 B 3.must / have to (1)表“必须”。must强调主观看法;have to强调客观需要。 【例9】 ①This is a bad party—We really ________ go. ②This is a lovely party, but we ________ go because of our baby. A.must
B.may
C.can
D.have to 答案 ①A ②D (2)mustn't意为“禁止、不准”;haven't to意为“不必”(=needn't)。 【例10】 You ________ practice the drums while the baby is sleeping. A.haven't to
B.mightn't C.mustn't
D.won't 答案 C (3)must表“偏要、硬要”。 【例11】 Why ________ you always interrupt me? A.can
B.will
C.may
D.must 答案 C 【例12】 —May I smoke here? —If you ________, choose a seat in the smoking section. A.should
B.could
C.may
D.must 答案 D (4)以must开头的一般疑问句,若要作否定回答,常用needn't或haven't to,一般不用mustn't。 【例13】 —Must I come at four o'clock? —Oh,no.You ________ come at four. A.won't
B.needn't
C.can't
D.mustn't 答案 B 4.ought to / should (1)意为“应该”,表义务或责任,ought to的语气比should稍重。 【例14】 It's nearly seven o'clock.Jack ________ be here at any moment. A.must
B.need
C.should
D.can 答案 C (2)should表“竟然、万一”。 【例15】 You can't imagine that a wellbehaved gentleman ________ be so rude to a lady. A.might
B.need
C.should
D.would 答案 C 【例16】 If you ________ have any difficulty in getting spare parts, ring this number. A.ought to
B.should C.will
D.would 答案 B 5.need (1)意为“需要”,作情态动词用时,须跟动词原形,无人称、数、时态的变化,一般只用于否定句或疑问句中。在肯定句中一般用作行为动词。 【例17】 —I don't mind telling you what I know. —You ________.I'm not asking you for it. A.mustn't
B.may not C.can't
D.needn't 答案 D 【例18】 I don't think he ________ a new computer. A.need to buy
B.needs buy C.need buy
D.need 答案 C (2)以need开头的一般疑问句,若要作肯定回答,常用must,一般不用need。 【例19】 —Need I come? —Yes, you ________. A.need
B.must
C.needn't
D.mustn't 答案 B 6.dare 意为“敢”,作情态动词用时,须跟动词原形,有过去式(dared),无人称、数的变化,主要用于否定句、疑问句或条件句中。在肯定句中一般用作行为动词。 【例20】 I wonder how he ________ that to the teacher. A.dare to say
B.dare saying C.not dare say
D.dared say 答案 D 【例21】 She ________ tell the boss because she doesn't want to make trouble. A.doesn't dare to
B.not dare C.daren't to
D.dares not to 答案 A 7.shall (1)用于疑问句中征求意见,主语是第一、三人称。 【例22】 Let's go shopping, ________ we? A.don't
B.will
C.shall
D.mustn't 答案 C 【例23】 Professor Smith, many students want to see you.________ they wait here or outside? A.Do
B.Will
C.Shall
D.Would 答案 C (2)用于陈述句中表示说话人的允诺、告诫、威胁、命令等,主语多为第二、三人称。 【例24】 —I haven't got the reference book yet, but I'll have a test on the subject next month. —Don't worry.You ________ have it by Friday.(2010·江苏) A.could
B.shall
C.must
D.may 答案 B 【例25】 —Mike is absent from class. —Tell him he ________ answer for it if he goes on behaving like that. A.shall
B.will
C.would
D.can 答案 A 8.will / would (1)用于征求意见,主语是第二人称。 【例26】 —________ you be here when we get back? —Surely. A.Shall
B.Will
C.Do
D.Mustn't 答案 B (2)表“意志、意愿”,用于各种人称。主语若为无生命的东西,won't不表意愿,而是“就是不……”之意。 【例27】 I pushed the secondhand car in the mud with my full strength, but it ________ move. A.won't
B.wouldn't
C.mightn't
D.couldn't 答案 B (3)表“习惯”,will指现在的习惯,would指过去的习惯。 【例28】 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 答案 A (二)情态动词表推测的用法 推测现在的情况,后接动词原形;推测正在进行的情况,后接动词的进行时;推测过去的情况,后接动词的完成时。 1.must只用于肯定句中,意为“一定”。
【例29】 —Good morning.I've got an appointment with Miss Smith in the Personnel Department. —Ah, good morning.You ________ be Mrs.Peter. (2010·北京) A.might
B.must
C.would
D.can 答案 B 【例30】 I didn't hear the phone.I ________ asleep. A.must be
B.must have been C.should be
D.should have 答案 B 【例31】 —Do you know what Tom is doing at the crossroads? —He ________ for his girlfriend. A.should wait
B.must be waiting C.can have waited
D.might waiting 答案 B 2.can / could多用于否定句或疑问句中,二者一般没有时间上的差异,只是could的语气更客气委婉。can't/couldn't意为“不可能”。 【例32】 I'm afraid Mr.Harding ________ see you now.He's busy.
(2010·全国Ⅱ) A.can't
B.mustn't C.shouldn't
D.needn't 答案 A 【例33】 —There were already five people in the car but they managed to take me as well. —It ________ a comfortable journey. A.can't be
B.shouldn't be C.mustn't have been
D.couldn't have been 答案 D 【例34】 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 答案 D 3.may / might用于肯定句或否定句中,might不是may的过去式,只是might的可能性比may小。may not / mightn't意为“可能不”。 【例35】 Peter ________ come with us tonight, but he isn't very sure yet. A.must
B.may
C.can
D.will 答案 B 【例36】 —Is John coming by train? —He should, but he ________ not.He likes driving his car. A.must
B.might
C.can
D.need 答案 B 【例37】 —I can't understand why our boss is late. —He ________ the early bus. A.could miss
B.may have missed C.can have missed
D.might miss 答案 B 4.ought to / should意为“按理应该”。 【例38】 —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 答案 B (三)“情态动词+have done”的虚拟用法 1.ought to / should have done表示过去本应该做而实际上未做,含有责备的口气。 【例39】 I ________ have watched that movie —it'll give me horrible dreams.(2010·山东) A.shouldn't
B.needn't
C.couldn't
D.mustn't 答案 A
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