语法专题六：情态动词

牛津版高三英语二轮复习语法专题 1 语法专题六 情态动词语法专题六 情态动词 1 常见情态动词及用法说明常见情态动词及用法说明 情态动词情态动词用法说明用法说明 can1 表示主观能力 2 表示许可 请求 3 表示可能性 推测 主要用于否定句 疑问句中 4 表示 有时会 习语 can t help doing can t help but do 不能不 只能 could 为 can 的过去时 具备 can 的各种功能 语气更委婉 客气 be able to1 表示已能成功做到某事 2 可用于各种时态 may1 表示许可 允许 2 表示可能性 推测 3 表示祝愿 置于句首 4 其一般疑问句的否定回答常用 No can t 习语 may well not do 很 不 可能 may as well not do 不妨 might为 may 的过去时 具备 may 的各种功能 语气更委婉 可能性更小 must1 表示主观上认为 必须 如为一般疑问句 其否定回答常为 No needn t not have to 2 表示 偏偏 偏要 3 表示肯定的推测或必然 have to1 强调客观上 不得不 2 可用于各种时态 should1 表示道义上的责任 2 用于疑问句或感叹句中 表示意外 惊异 3 表示 按常理推断理应 4 用于 Who should do but 结构中 表示 除了 还有谁会 ought to与 should 同义 语气略重 注意其疑问式和否定式 shall1 用于第一 三人称 表示征求意见 请求 2 用于第二 三人称 表示说话者说话者的意志 允诺 命令 威胁等 3 用在法律 条款 协定等文件中 表示义务 规定等 will1 用于第二人称 表示征求意见 请求 2 表示习惯 would 则表示过去的习惯 只表重复动作 不表状态 used to 则皆可 3 表示意志 决心 4 用于 if 条件从句中 表示意愿 would为 will 的过去式 表示请求时 语气更委婉 need 需要 的意思 常用于否定句 疑问句中 无人称 时态变化 无人称 时态变化 后接动 词原形 否定式为 needn t dare 敢于 的意思 常用于否定句 疑问句中 无人称变化 但有时态变化 无人称变化 但有时态变化 其过去式为 dared 否定式为 dare dared not 后接动词原形 习语 I dare say I daresay 我想 我认为 2 情态动词情态动词 have done 的意义的意义 情态动词情态动词1 may might have done 用法说明用法说明 1 表示对过去或完成动作的 可能可能 推测推测 2 表示过去可以做但未做 用 用 might 虚拟语气 虚拟语气 情态动词情态动词2 can could have done 用法说明用法说明 1 表示过去能做但未做 用 用 could 虚拟语气 虚拟语气 2 用于否定 疑问句中 表示 否定 推测 否定 推测 情态动词情态动词 3 must have done 用法说明用法说明对过去或完成动作的肯定推测肯定推测 情态动词情态动词 4 needn t have done 牛津版高三英语二轮复习语法专题 2 用法说明用法说明 过去不必做 但已做了 虚拟语气 虚拟语气 情态动词情态动词 5 should not have done 用法说明用法说明 过去 不 该做 但做了或未做 虚拟语气 虚拟语气 3 情态动词表示推测情态动词表示推测 1 表示肯定的推测 用 must do have done 过去或完成 be doing 进行 2 表示否定的推测或用于疑问句中 用 can 用法同上 3 表示可能性的推测 用 may 用法同上 注意 注意 以上句子的反义疑问句要根据该句的实际时态来定 巩固练习 巩固练习 1 Ding Junhui the championship He didn t pass the first round A might not have won B shouldn t have won C couldn t have won D mustn t have won 2 Children under 12 years of age in that country according to the rule be under adult supervision when in a public library A shall B may C can D need 3 I am sure you d rather he stayed in Spain A wouldn t you B aren t I C didn t he D hadn t you 4 He is a bad tempered fellow but he be quite charming when he wishes A can B may C could D might 5 You to the meeting this morning if you have something important to do A needn t to come B don t need comeC don t need coming D needn t come 6 I promised to get there before 5 o clock but now the rain is pouring down They for me impatiently A may wait B ought to wait C could wait D must be waiting 7 I ve decided to take the job and I change my mind A mustn t B can t C won t D may not 8 I up early this morning So I stayed in bed till 9 a m A needn t have got B didn t need to getC shouldn t have got D can t have got 9 The flower is dead I it more water A will give B would have givenC must give D should have given 10 Don t forget to remember me to your parents Thanks I A can t B mustn t C won t D shan t 11 The dog barked fiercely but no one over to stop it A could go B dare goC dared go D might go 12 We hurry if we want to arrive in time A must B needC may D have to 13 He get up early when he lived in the countryside A would B will C mustn t D can t 14 you please pass on a message to him A Do B ShallC May D Will 15 Could I call you by the first name Yes you A may B could C can D might 16 The fire spread through the hotel very quickly but everyone get out A had to B would C was able to D could 17 It s nearly seven o clock Jack be here at any moment A must B need C should D can 18 I think Helen is at home No she be at home for she phoned me from the airport just five minutes ago A mustn t B needn tC can t D daren t 牛津版高三英语二轮复习语法专题 3 19 He s late What have happened to him A can B mayC should D must 20 After I gave her my advice she go and do the opposite A should B must C shall D ought 21 Who come in but the president himself A may B should C can D shall 22 Chairman Zhang many people want to see you they wait here or outside A Will B Shall C Must D Would 23 Liza well not want to go on the trip she hates traveling A will B can C must D may 24 Where is Dad Mary He the flowers in the garden A must water B must be watering C must have watered D waters 25 Isn t that our English teacher No it be him He is making a speech in the hall A can t B must not C won t D may not 26 If you wait here for another five minutes I think our manager will come back A must B should C will D can 27 You use my bike on condition that you give it back to me before I leave here A should B must C ought to D shall 28 You can t imagine that a top student have failed in the college entrance examination A might B need C should D would 29 What s the matter with the man hanging his head there Well if you know he was caught stealing my bike A must B may C can D shall 30 It is usually warm in my hometown in March but it be rather cold sometimes A must B can C should D would 31 There was a lot of fun at yesterday s party You come but why didn t you A must have B should C need have D ought to have 32 Mr Bush is on time for everything How it be that he was late for the opening ceremony A can B should C may D must 33 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 34 She have left school for her bike is still here A can t B wouldn t C shouldn t D needn t 35 He s strange he sit for hours without saying anything A shall B will C can D must 36 it rain tomorrow the meeting would be put off A Should B Would C Could D Must 37 Catherine 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 38 I can t find my purse anywhere You have lost it while shopping A may B can C should D would 39 His cake is very sweet You a lot of sugar in it A should putB could have putC might putD must have put 40 He was very brave Even though she d hurt her leg she go back alone A couldB mightC have toD was able to 牛津版高三英语二轮复习语法专题 4 41 Johnny you play with the knife you hurt yourself A won t can tB mustn t mayC shouldn t mustD can t shouldn t 42 You must have seen him last night A haven t you B didn t youC don t youD mustn t you 43 I ve tried several times but the car just A doesn t startB wouldn t startC won t startD didn t start 44 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 45 There used to be a small school A was thereB wasn t itC usedn t thereD usedn t it 46 Sir you be hunting deer here for they are preserved by the government A oughtn t toB can tC won tD needn t 47 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 A could B must C shall D may 48 She must have gone back to the valley she have The entrance to it was nowhere to be found A No mustn t B Yes might C Yes couldD No couldn t 49 You ought to have made an apology to Tom yesterday evening Yes I know I A ought to B have toC should haveD must have 50 Mum I climbed to get the Teddy Bear from the top of the shelf My goodness You yourself You do that next time A must have hurt mustn tB should have hurt can t C may have hurt mustn tD might have hurt won t be able to 51 I m sorry I at you the other day Forget it I was a bit out of control myself A shouldn t shout B shouldn t have shouted C mustn t shout D mustn t have shouted 52 Jack described his father who a brave boy many years ago as a strong willed man A would be B would have been C must be D must have been 53 Good morning I ve got an appointment with Miss Smith in the Perso