情态动词系统复习-2025-2026学年高中英语语法复习（译林版）

高中译林版 【语法专版】 语法复习知识点全解 语法专版 【专题】情态动词系统复习 语法专项突破 考频分析 初三译林版中，情态动词是重点语法模块，考频占词法总量的15%左右，贯穿试卷所有核心题型： 单项选择3-4题、完形填空23题、语法填空2题、书面表达核心考察，直接影响句子语气与表意 准确性。在语境理解类题目中，情态动词的推测用法、基本含义及语气差异往往是解题关键。 考查内容 。基本词义与用法：can/could、may/might.、must/have to、sha/should、will/would、need、dare的核心 含义与语法功能 ·情态动词表推测：不同情态动词在肯定句、否定句、疑问句中表示”可能性”的语气强弱与语境匹 配 。情态动词+have done结构：对过去情况的推测(must have done)、虚拟语气(could/might have done) 及必要性(should have done)的用法辨析 知识点一：情态动词的分类及核心用法 1.能力与许可类情态动词 1.can/could(能力)： ·can表示现在或一般能力，could表示过去能力或委婉请求 。例句： 1.She can speak three languages fluently.(现在能力) 2.Could you please pass the salt?(委婉请求) 2.nay/might（许可)： ·may表示正式许可，might语气更委婉 。例句：You may leave the classroom after finishing the test..(正式许可) 1 高中译林版 【语法专版】 语法复习知识点全解 2.义务与推测类情态动词 1.must/have to(义务)： 。must表主观必须，have to表客观需要 ·例句： l.We must wear uniforms at school.(主观必须) 2.They have to work overtime due to the deadline.(客观需要) 2.should/ought to(建议)： 。should强调责任义务，ought to语气更正式 ·例句：You should apologize for your mistake.（责任建议) 3.must/can't(推测)： ·must表肯定推测（一定），can't表否定推测（不可能） ●例句：This must be John'sbag一his name is on it.(肯定推测) 3.情态动词的常见句式变化 1.否定式：直接加not(can→can't,must→nustn't,need→needn't) 2.疑问句：将情态动词置于句首 3.例句： 1.You needn't come early tomorrow.(否定式) 2.Can he solve this problem by himself?(疑间句) 3.Must we hand in the report today?一No,you needn't.（否定回答用needn't) 4.情态动词+have done结构 l.表对过去的推测：must have done(一定做过)，couldn't have done(不可能做过) 2.表虚拟语气：should have done(本应做却未做)，needn't have done(本不必做却做了) 3.例句： l.She must have arrived home by now.(对过去的肯定推测) 2.You should have told me the truth earlier.(虚拟语气表遗憾) 知识点二：情态动词的基本用法与常见搭配 l.can/could（能力、许可、可能性) 2 高中译林版 【语法专版】 语法复习知识点全解 1.词义与用法： ·ca1:表示现在的能力(”能，会”)、口语化许可(”可以”)、理论可能性(”可能”，用于否定 句/疑问句) ·could:表示过去的能力、委婉请求（回答用can)、较小的可能性 2.结构与例句： ·肯定句：主语+can/could+动词原形 1.She can speak three languages.(现在能力) 2.Could you pass me the pen?(委婉请求，回答：Sure,Ican.) 。否定句：主语+can't/couldn't+动词原形 1.He can't swim across the river.(现在能力否定) 2.You couldn't park here yesterday.(过去许可否定) ·疑问句：Can/Could+主语+动词原形？ l.Can the news be true?(可能性疑问) 2.Could she have finished the task alone?(过去可能性推测) 2.may/might（许可、可能性、祝福) 1.词义与用法： 。my:表示正式许可(”可以”)、肯定句中可能性(”可能”)、祝福(”祝.”) ●might:表示较小的可能性（比may更不确定）、过去的许可 2.结构与例句： ·肯定句：主语+may/might+动词原形 1.Students may use dictionaries in the exam.(正式许可) 2.It might rain this afternoon.(可能性推测) ●否定句：主语+may not/might not+动词原形(may not表”禁止”，night not表’可能不') 1.You may not leave the room without permission.( 2.She might not agree with our plan.(可能性否定) 。疑问句：May+主语+动词原形？（请求许可，回答用can/may) 1.May I come in?(请求许可，回答：Yes,you can/may.) 3.must/have to(必须、肯定推测) 1.词义与用法： 。ust:表示主观必须(”必须”，否定用mustn't”禁止”)、肯定推测(”一定”，用于肯定句) ●have to:表示客观需要(”不得不”，有人称/时态变化，否定用don't have to''不必) 3 高中译林版 【语法专版】 语法复习知识点全解 2.结构与例句： ●肯定句：主语+must/have to+动词原形 l.We must obey traffic rules.(主观必须) 2.She has to work overtime today.(客观需要，三单现三单has) ·否定句：主语+mustn't/don't have to+动词原形 1.You mustn't smoke here.(禁止) 2.They don't have to hand in homework today.( ·肯定推测：主语+must+be/动词原形have done(对现在/过去的肯定判断) 1.He must be at home now.(现在状态推测) 2.They must have arrived by plane.(过去动作推测) 4.should/ought to（应该、建议) 1.词义与用法： ●should/ought to:表示责任义务(”应该”)、建议(”应当”)、合理推测(”按理说”)，ought to后 接动词原形，否定在前面加not 2.结构与例句： ·肯定句：主语+should/ought to+动词原形 1.You should respect your parents.(责任义务) 2.We ought to start early tomorrow.(建议) ●否定句：主语+shouldn't/ought not to+动词原形 1.He shouldn't waste time on games.(不应该) 2.You ought not to talk loudly in the library.(ought否定式) 。疑问句：Should+主语+动词原形？（征求建议） l.Should we call the police now?(征求建议) 5.need/dare(需要、敢于) 1.词义与用法： ●need:作情态动词时表”需要'，用于否定句/疑问句，肯定句用need to do:作实义动词时有人 称时态变化，后接todo 。dar:作情态动词时表”敢于”，用于否定句/疑问句，后接动词原形：作实义动词时后接todo(to 可省略) 2.结构与例句： ·need情态动词： 4 高中译林版 【语法专版】 语法复习知识点全解 1.You needn't come so early..(否定句，不必) 2.Need I finish the report today?(疑间句，需要吗) ·need实义动词： 1.He needs to buy a new phone.(肯定句，三单needs) 2.They don't need to worry about it.(否定句) ·dare情态动词： 1.She daren't speak in public.(否定句，不敢) 2.Dare he challenge the champion?(疑间句，敢吗) ●dare实义动词： 1.I dare(to)jump over the fence.(肯定句，敢做) 2.He doesn't dare(to)tell the truth.(否定句) 6.wil/would（意愿、习惯、请求) 1.词义与用法： ·wll:表示主观意愿(”愿意)、客观趋势(”会”)、习惯性动作(”总是”)、第二人称请求(” 请.”) ●would:表示过去的意愿、委婉请求（比will更客气）、过去习惯性动作 2.结构与例句： 。wi用法： 1.I will help you with your luggage.（主观意愿) 2.Fish will die without water.(客观趋势) 3.Will you please close the window?(请求) 。would用法： 1.He would often walk to school when he was young.(过去习惯) 2.Would you mind opening the door??(委婉请求) 3.She said she would wait for us.(过去意愿) 知识点三：情态动词 1.基础含义及用法（中考必背） 1.can(能/会/可以)→例句：She can speak three languages. 2.may(可以/何能)→例句：May I borrow your pen? 3.must(必须/一定)→例句：You must finish your homework first.. 4.should(应该)例句：We should help each other. 5 高中译林版 【语法专版】 语法复习知识点全解 5.wil(将要/愿意)→例句：I will visit my uncle next week 6.would(将要/愿意，will的过去式)→例句：He said he would come on time. 7.need(需要，用于否定/疑间句)→例句：You needn't wait for me 8.have to(不得不，强调客观)→例句：I have to go now because it's late.. 2.否定形式（中考易错) 1.can't(不能/不可能)→例句：He can't swim across the river. 2.nustn't(禁止)→例句：You mustn't park here, 3.shouldn't(不应该)→例句：You shouldn't eat too much candy. 4.needn't(不必)→例句：Need I go with you?No,you needn't. 3.推测用法（中考常考) 1.must(肯定推测，用于肯定句)→例句：This book must be hers(她的书). 2.may/might(可能推测，may可能性更大)一→例句：He may come tomorrow. 3.can't（否定推测，用于否定句)→例句：The answer can't be wrong. 考法精析 考法一：情态动词表推测的语气强弱辨析 核心：根据语境中可能性的高低，选择语气强度匹配的情态动词(must/should/may/might/can't等) 真题1（语法填空)： The ground is all wet.It-have rained heavily last night. 答案：must 解析：由”地面全湿了”这一语境可推断昨晚”一定”下了大雨，对过去的肯定推测且可能性极高， 用must have done。. 真题2（单项选择)： -Where is Lucy? -She_be in the library.I saw her go there just now. A must B should C may D might 答案：A 解析：由”刚才看到她去那里”可知Lucy在图书馆的可能性极高，用ust表肯定推测(90%以上 可能性)，语气最强。 考法二：情态动词表推测的综合运用 6 高中译林版 【语法专版】 语法复习知识点全解 核心：结合语境判断推测的语气强弱及时间维度（对现在/过去的推测），选择正确的情态动词形式 真题1（语法填空)： The door is locked.They-(go)out for shopping,but I'm not sure. 答案：may/might have gone 解析：由”门是锁着的”和”不确定”可知为对过去动作的可能性推测(50%以下)，用”may/might have gone'”表”可能已经出去了”。 真题2（完形填空）： -Why didn't you answer my call last night? -I_asleep because I was so tired. A.must fall B.must have fallen C.should fall D.should have fallen 答案：B 解析：对过去动作的肯定推测(90%以上可能性)，用'must have fallen'”表”一定是睡着了”；”should have fallen'”表”本应睡着却没睡着”，与语境不符。 考法三：情态动词在语境中的综合运用及句式转换 核心：结合语境判断情态动词的含义（能力、许可、推测等），掌握情态动词的基本结构及”情态 动词+have done”的用法 真题1（单项选择）： -She looks upset.What's wrong? -She_have failed the exam.Her parents will be angry. A.must B.should C.need D.would 答案：A 解析：根据”她看起来很沮丧”及”父母会生气”的语境，此处表示对过去情况的肯定推测，用must have done'”结构，意为”一定做过”。 真题2（语法填空)： You_(not park)your car here.Look at the sign"No Parking". 答案：mustn't park 解析：根据'No Parking”的标志，此处表示禁止停车，用情态动词must的否定式nustn't,后接动 词原形park。 解题小妙招 情态动词推测妙招 推测语气看语境，可能高低定情态： 7 高中译林版 【语法专版】 语法复习知识点全解 肯定推测用must,百分之九可能性： may/might表或许，低于五十不确定； 否定推测can't替，should不该放这里； 现在推测be结尾，must be语气硬： 过去推测看完成，must have done肯定； may/might加have done,过去可能不确定； 虚拟语气要注意，时态倒退有规律： if从句用过去，would后面原形跟： 推测虚拟细辨析，结合语境定乾坤。 真题演练 演练一：单项选择试题（共10题) 1.The light is off.He be at home now. A must B should C can't D might 2.-Could I borrow your bike? —Sre,you-. A could B can C must D need 3.Youhave finished the project yesterday.The deadline was strict. A must B should C may D might 4.She_speak French fluently when she was six years old. A can B could C is able to D was able to 5.If I you,I would take the job offer without hesitation. A am B was C were D be 6.-Why didn't you attend the meeting? -I_have forgotten about it.I'm so sorry. A must B should C need D might 7.You smoke here-it's a non-smoking area. A mustn't B needn't C couldn't D wouldn't 8 高中译林版 【语法专版】 语法复习知识点全解 8.The ground is dry.It_rained last night. A must B should C can't have D might have 9.-I leave the classroom early? -No,you_stay until the bell rings. A May;must B Must;may C Could;need D Should;can 10.Without your support,I-achieved nothing. A mustn't have B shouldn't have C couldn't have D needn't have 演练二：填空试题（共10题） l.You_(本应告诉)me the truth earlier.Now it''s too late to change anything. 2.The door is open.They_(一定▣家)already. 3.If she_(努力学习)，she would have passed the exam last month. 4.You_(不必带)so much luggage,the hotel provides everything. 5.This_(不可能是)John's coat-一it's much too small for him. 6.一_（可以）I use your computer for a while? -Sure,go ahead. 7.She_(或许会)come to the party tonight,butI'm not sure. 8.You _take an umbrella;the weather forecast says it will rain. 9.He_(一定完成)the task by now-he started working on it early this morning. 10.If I had known the truth,I一（不会相信）him. 演练三：语法填空试题（共10空） 9 高中译林版 【语法专版】 语法复习知识点全解 A recent survey shows that many students struggle with情态动词usage..Here are some key tips: 1.If you see a"no parking"sign,you_(must)park there.It's against the rules. 2.She looks upset.You_(should)have criticized her in front of the class. 3.The exam results will be released tomorrow.I_(may)get an A,but I'm not sure. 4.-Why didn't Tom attend the lecture? -He(must)have overslept;he often stays up late. 5.Without your help,we_(can)not have finished the project on time. 6.You_(need)not have bought so much food.There are only three of us for dinner. 7.IfI(be)you,I would apologize to her immediately. 8.The teacher said we_(might)hand in our papers by Friday. 9.He_(could)swim across the river when he was young,but now he can't. 10.You(should)have told me about the meeting.I missed an important discussion. 答案区 演练-：1.C2.B3B4B5.C6.A7.A8.C9.A10.C 演练二：l.should have told2.must have come home3.had studied4.needn't have brought5.can'tbe 6.May 7.might/may 8.had better 9.must have finished 10.wouldn't have believed 演练三：1.mustn't2.shouldn't3.may4.must5.could6.needn't7.were8.might9.could10.should 10