必修1 情态动词表建议推测-备战2025-2026学年高中英语上学期期末语法全解（冀教版）

ENGLISH-必修一系列资料（冀教版） Chapter1情态动词 考频分析 情态动词表建议、推测是高中英语语法的重要考点，考频占语法总量的8%左右，主要分布在以下题型： 单项选择(1-2题)、完形填空(2-3题)、阅读理解(1-2题)、书面表达（辅助考察，提升表达丰富度与得 体性)。在语境理解类题目中，情态动词所表达的建议语气强弱及推测可能性大小往往是解题关键。 老查内容 高中英语对情态动词表建议、推测的考察聚焦两大维度，覆盖基础用法与语境应用： ·表建议用法：can/could、may/might、.should/ought to、had better的基本含义与语气差异，情境中的恰 当选用； ·表推测用法：must、may/might、.could、can't在不同时态（现在、过去、将来）中的结构（如must be doing、may have done)及可能性程度辨析，肯定与否定推测的对应情态动词选择。 精讲精练 知识点一：情态动词表建议、推测 ·表建议的情态动词 -常见情态动词：should(应该)、ought to(应该，语气略强于should)、had better(最好，常用于口语) -例句：口You should study hard for the exam.(should表建议，后接动词原形)口Ve had better leave early to avoid traffic.(had better表建议，后接动词原形，否定形式为had better not) ·表推测的情态动词 一常见情态动词及语气：must(肯定推测，语气最强，意为“一定”)、may/might/could(可能推测， might//could语气比may弱)、can't(否定推测，意为“不可能”) -例句：口He must be at home now.(must表肯定推测，用于肯定句)口She may come to the party tonight..(may表可能推测，用于肯定句)口This can't be his book.(cant表否定推测，用于否定句) 【即学即练】 1.【表建议情态动词】Which modal verb is used to give advice in spoken English? A.must B.had better C.can't D.may 2.【表推测情态动词】The light is off,so he-be at home now.(填表否定推测的情态动词) 3.【推测语气辨析】一Is that Lucy at the door??一t_be her;she has gone to Beijing. A.must B.may C.can't D.could 4.【建议用法】You_(应该)finish your homework before watching TV.(填对应的情态动词) 5.【推测可能性】may/might/could表可能推测时，_的语气最弱。 必修1|英语|冀教版 ENGLISH-必修一系列资料（冀教版） 知识点二：情态动词表能力、许可和必要性 ·表能力的情态动词 -常见情态动词：can(能，会，现在/将来能力)、could(能，会，过去能力；委婉请求时语气比can弱) -例句：口She can speak three languages.(can表现在能力，后接动词原形speak)口He could swim when he was five.(could表过去能力，后接动词原形swim) ·表许可的情态动词 -常见情态动词及语气：can(可以，口语中表许可)、may(可以，正式场合表许可，语气比can委婉)、 could/might(可以，更委婉的请求许可，回答时用can/may) -例句：口You can use my pen.(can表许可，后接动词原形use)DMay|come in?(may表请求许 可，后接动词原形come;肯定回答：Yes,you may..Nes,you can.;否定回答：No,you can't.No,you mustn't. ·表必要性的情态动词 -常见情态动词：must(必须，语气强，主观上认为有必要)、have to(不得不，客观上需要)、needn't (不必，must的否定回答) -例句：口Ve must follow the rules.(must表必要性，后接动词原形follow)口She has to work late today..(have to表客观必要，主语三单，用has to,后接动词原形work)口You needn't wait for me. (needn't表不必，后接动词原形wait) 知识点三：情态动词表意愿、习惯和推测的过去式 ·表意愿的情态动词 -常见情态动词：wil(愿意，表现在将来意愿)、would(愿意，表过去意愿；委婉请求) -例句：I will help you with your English.(will表现在意愿，后接动词原形help)口She said she would come to the meeting.(would表过去意愿，用于宾语从句，后接动词原形come)Would you please pass the salt?(woud委婉请求，后接动词原形pass) ·表习惯的情态动词 -常见情态动词：used to(过去常常，现在已改变)、would(过去常常，常与oten等词连用) -例句：口He used to play football after school.(used to表过去习惯，后接动词原形play,否定形式 usedn't to/didn't use to)My grandfather would read newspapers every morning.(would表过去习 惯性动作，后接动词原形read)》 ·表推测的过去式情态动词 -常见情态动词及语气：must have done(一定做过，对过去肯定推测)、may/might have done(可能 做过，对过去可能推测，might语气更弱)、can't have done(不可能做过，对过去否定推测) -例句：☐The ground is wet;:it must have rained last night..(must have done表过去肯定推测，rained 为动词过去分词)☐She may have finished her homework.(may have done表过去可能推测，finished 为动词过去分词)口He can't have stolen the money;he was at home then.(can't have done表过去 否定推测，stolen为动词过去分词) 必修1|英语|冀教版 ENGLISH-必修一系列资料（冀教版） 考法一：情态动词表推测 ·核心：根据语境判断推测的肯定、否定或可能性程度，选择正确的情态动词(must/may/might/could/,cant) ·真题1（语法填空）： The light is on in his room,so he-be at home now. 一答案：must解析：由“灯亮着”这一语境可判断为肯定推测，语气最强，用must。 ·真题2（完形填空）： --Where is Lucy? --She be in the library,but I'm not sure. A.must B.can C.may D.can't -答案：C解析：由“but'm not sure”可知为不确定的可能推测，用may。 考法二：情态动词功能辨析 ·核心：根据语境判断情态动词表建议/推测能力许可必要性的功能，选择正确情态动词 ·真题1（语法填空）： -You_take an umbrella.The weather forecast said it might rain this afternoon. -答案：should解析：根据语境“天气预报说可能下雨”，此处表建议“应该带伞”，用should,后接动 词原形take。 ·真题2（完形填空）： --I borrow your dictionary?I left mine at home. --Sure,you _ A.Must;could B.May;can C.Need;might D.Should;will -答案：B解析：第一空表请求许可，正式场合用may;第二空回答请求许可用can,符合知识点二表 许可的用法。 考法三：情态动词多义及语法功能综合辨析 ·核心：结合语境判断情态动词表建议、推测、能力、许可、必要性、意愿等不同含义，掌握其基本用法 及过去式推测结构 ·真题1（单项选择）： -The light is on,so he_be at home.You_call him first. A.must need B.might should C.can't had better D.must should 一答案：D解析：第一句根据“灯亮着”表肯定推测，用ust(一定)；第二句表建议“应该先打电话”， 用should,.符合语境逻辑。 ·真题2（语法填空）： She_(can)swim very well when she was young,but now she_(not need)to practice every day. -答案：could needn't解析：第一空表过去能力，用can的过去式could;第二空表不必，用needn't, 后接动词原形practice,符合“过去会游泳但现在不必每天练习”的语境。 必修1|英语|冀教版 ENGLISH-必修一系列资料（冀教版） 解题小妙招 情态动词解题妙招推测先看语境线，肯定must否定can't,可能may/might//could;功能辨析看含义，建议 should/had better,许可may/can最常见；能力can/could表，过去能力用could,必要性分must/needn't; 多义辨析需综合，推测建议看逻辑，过去推测用情态动词+have done;语法填空看时态，过去能力could 填，不必就用needn't,后接原形要记牢。 真题演练 演练一：单项选择试题（共10题） 1.You__finish your homework before watching TV.It's a rule in our family. A.must B.can C.might D.would 2.-I use your phone to call my mom?-Sure,here you are. A.Must B.Should C.May D.Would 3.The ground is covered with snow.It_have snowed heavily last night. A.can B.must C.may D.might 4.She_speak French fluently when she was in Paris,but now she has forgotten most of it. A.can B.could C.must D.should 5.You__worry too much about the exam.You've prepared well enough. A.needn't B.mustn't C.can't D.shouldn't 6.-Where is Tom?-He be in the classroom.I saw him go there just now. A.must B.may C.might D.can't 7.We _follow the traffic rules to keep safe on the road. A.can B.might C.must D.would 8.--you pass me the salt,please?-Certainly. A.Must B.Should C.Could D.Need 9.You _take an umbrella today.The radio says it will rain this afternoon. A.can B.should C.must D.might 10.Hehave arrived late for the meeting,but I'm not sure. A.must B.can C.may D.can't 演练二：填空试题（共10题） 1.You _(study harder if you want to pass the exam. 2.She_(不可能)be at home now-she left for Beijing this morning. 3.We _(wear uniforms at school according to the rules. 4.He_(过去常常)play basketball every weekend,but now he prefers swimming. 5.-_(可以)I borrow your notebook?-Yes,you-.(可以) 6.You_(不必)wait for me.'ll join you later.. 7.The children(swim across the river when they were young 8.You _not eat too much junk food.It's bad for your health. 9.She_(不得不)work overtime yesterday because of the urgent project.. 10.The door is locked.They_()have gone out for a walk. 演练三：语法填空试题（共10空） It was a cold winter morning.I 1.-(must)get up early to catch the first bus to school,but my alarm clock didn't ring.I 2.(hurry)to put on my clothes and rushed out.On the way,I met my neighbor Uncle Li. He 3.(may)have noticed I was late,so he offered me a ride."You 4.-(should)check your alarm clock before going to bed,"he said.I felt embarrassed and nodded. When I arrived at school,the classroom door was still closed.I 5.-(can)hear students reading inside.I knocked gently and asked,46.(may)I come in,Mr.Wang?" Mr.Wang opened the door and said,"You're late again.You 7.-(have to)be more careful next time." I explained what happened,and he said,"Well,you 8.-(needn't)apologize this time,but don't let it happen again.” After class,my friend Lucy said,"1 9.-(could)lend you my extra alarm clock if you want.I 10.-(used to)have two,but now I only need one."I thanked her happily. 答案 演练一：单项选择 1.A2.C3.B4.B5.A6.A7.C8.C9.B10.C 演练二：填空试题 1.should 2.can't 3.must 4.used to 5.May;can/may 6.needn't 7.could 8.had better 9.had to 10.must 演练三：语法填空 1.had to 2.hurried 3.must 4.should 5.could 6.May 7.must 8.needn't 9.can 10.used to 必修1|英语|冀教版