Unit 8 Review 复习情态动词表建议用法-2025-2026学年七年级英语下册语法知识点全解（教科版五四制）

初中教科版（五四制）》 【复习专版】7下Unit8 Review 复习专版 【专题】复习情态动词表建议用法 语法专项突破 考频分析 教科版（五四制）7下Unit8 Review中，复习情态动词表建议用法是基础语法模块，考频占情态动 词相关考点的30%左右，主要分布在核心题型：单项选择(1-2题)、完形填空(1-2题)、书面表 达（常见考察，影响语境表达的恰当性）。在语境理解类题目中，情态动词表建议的语气差异和适 用场景往往是解题关键。 知识点二：情态动词表建议用法 1.can/could(提出非正式建议，could语气更委婉)： 。基本结构：主语+can/could+动词原形 。例句： l.You can ask your teacher for help.(你可以向老师求助。) 2.Could we go to the park this weekend?(我们这周末去公园好吗？) 2.should/shouldn't(提出责任或义务性建议，否定形式表“不应该”)： 。基本结构：主语+should/shouldn't+动词原形 ·例句 1.You should study for the test.(你应该为考试学习。) 2.You shouldn't eat too much junk food.(你不应该吃太多垃圾食品。) 3.had better (not)(提出强烈建议，意为“最好（不要）”，口语中常用)： ·基本结构：主语+had better (not))+动词原形(had常缩写为'd) ·例句： l.You'd better take an umbrella..(你最好带把伞。) 2.You'd better not be late.(你最好不要迟到。) 4.Why not..?/Why don't you.?(提出反问式建议，表“为什么不…呢？”)： 。基本结构：Why not+动词原形？/Why don'tyou+动词原形？ 1 初中教科版（五四制） 【复习专版】7下Unit8 Review 。例句： 1.Why not join the English club?(为什么不加入英语俱乐部呢？) 2.Why don't you watch English movies?(你为什么不看英语电影呢？) 5.Lt's…(提出共同行动的建议，意为“让我们…”)： ●基本结构：Let's+动词原形(Let's=Letus) 。例句： 1.Let's go shopping this afternoon.(我们今天下午去购物吧。) 2.Let's read the new text together.(我们一起读新课文吧。) 知识点三：情态动词表建议用法 1.should shouldn't: ·基础用法（中考必背）： l.should do(应该做)→例句：You should brush your teeth twice a day.. 2.shouldn'tdo(不应该做)→例句：He shouldn't eat too much junk food. 。常见搭配（中考常考）： 1.suggest(that)sb.should do(建议某人应该做)→例句：The doctor suggests that he should take more rest. 2.It's a good idea that sb.should do(某人应该做某事是个好主意)→例句：It's a good idea that we should start early. 2.had better (not)do: ●基础用法（中考核心)： l.had better do(最好做)→例句：You had better finish your homework first. 2.had better not do(最好不要做)→例句：We had better not go out alone at night ·语气特点（中考易错）： l.表示强烈建议，多用于口语→例句：You had better take an umbrella;:it might rain. 3.Why not do Why don't you do: 。基础用法（中考高频）： 1.Why not do(为什么不做)→例句：Why not join us for dinner? 2.Why don't you do(你为什么不做)→例句：Why don't you ask the teacher for help? ·功能拓展（情景应用）： 1.用于提出建议，语气委婉→例句：Why not try this new restaurant?? 初中教科版（五四制） 【复习专版】 7下Unit8 Review 考法精析 考法一：情态动词表建议用法辨析 核心：根据语境判断建议的语气（委婉程度、共同行动等），选择正确的情态动词结构 真题1（语法填空)： -It's going to rain.You take an umbrella. 答案：had better 解析：根据“要下雨了”的语境，需提出“最佳建议”，“had better+动词原形”符合口语化最佳建 议的用法。 真题2（单项选择)： -join us for dinner this evening? A Why not B Why don't C Let's D You should 答案：A 解析：句末为问号，需用反问式建议结构，“Why not+动词原形”符合语法要求；B缺少“you”,C 后接动词原形但用于陈述句，D为陈述句建议结构，均不符合。 考法二：情态动词表建议与推测用法辨析 核心：根据语境判断情态动词是表建议还是推测，选择正确的情态动词形式 真题1（语法填空）： -The man is wearing a doctor's uniform.He be a doctor.(must/should) 答案：must 解析：根据“穿着医生制服”这一语境，此处表示肯定推测“一定”，用must:should表建议“应 该”，不符合语境。 真题2（单项选择)： -It's raining heavily.-take an umbrella with you? -Good idea. A.Why not B.Must C.May D.Can't 答案：A 解析：根据答语“Good idea.”可知问句是提出建议，Why not后接动词原形表建议“为什么不… 呢”；Must表肯定推测，May表可能推测，Cnt表否定推测，均不符合语境。 考法三：情态动词表建议与推测的综合运用 3 初中教科版（五四制） 【复习专版】 7下Unit8 Review 核心：结合语境区分情态动词表建议(can/could/should/had better等)和表推测(must/may/might/cant 等)的用法，准确判断情态动词在具体情境中的含义及结构 真题1（单项选择)： -The man near the door be our math teacher.He has gone to Beijing for a meeting. -Then who is he?Why not go and ask him? A.must B.can't C.should D.could 答案：B 解析：根据后句“He has gone to Beijing for a meeting.”可知，门附近的男人“不可能”是数学老 师，表否定推测用can't:Why not..?为提出建议的固定句型，符合语境。 真题2（语法填空）： You_(should/must)study hard for the exam,but you_(may/can't)stay up too late.It's bad for your health.Why not go to bed early? 答案：should can't 解析：第一空表责任性建议，用should“应该”；第二空根据后句“It's bad for your health”可知表 “不应该熬夜”，用can't“不可以，不可能”；最后一句Why not..?为反间式建议，符合语境。 解题小妙招 情态动词辨建议推测妙招 建议语气看语境，委婉共同细辨析： 委婉建议用could,共同行动let's行： 最佳建议had better,反问建议why not跟： 建议结构要牢记，动词原形后面跟。 推测用法看证据，肯定must否定can't: 可能推测may might,把握大小要分清： 现在推测be跟上，过去推测have done: 建议推测综合看，先辨功能再定词。 真题演练 演练一：单项选择（共10题） 1.You look tired.You_go to bed early tonight. A should B must C may D can't 2.listen to some music to relax? A Why don't B Why not C Let's D You should 4 初中教科版（五四制） 【复习专版】7下Unit8 Review 3.The book is written in French.The author be from France. A should B had better C must D may not 4.It's cold outside.You_wear a warm coat. A could B mustn't C might D had better 5.-we go to the zoo this Sunday? -Good idea! A Let's B Why not C Could D Must 6.He be at home now.His bike is still in the yard. A can't B must C should D might not 7.You_eat too much candy.It's bad for your teeth. A shouldn't B needn't C must D may 8.-I can't solve this math problem. -You_ask your teacher for help. A must B could C can't D might 9.clean the classroom together after school? A Let's B Why don't C Why not D You should 10.She have finished her homework.She started an hour ago. A must B should C might D can't 演练二：填空试题（共10题） 1.You(should/had better)study for the test tomorrow.It's very important. 2.-(Why not/Let's)go swimming this afternoon?The weather is hot. 3.He looks happy.He(must/may)have passed the exam. 4.You(shouldn't/can't)play football in the street.It's dangerous. 5.-Where is Tom? -He_(might/must)be in the library.I'm not sure. 6.It's raining.You _(had better/can)take an umbrella. 7.(Why don't you/May)help your mom with housework? 8.She speaks German well.She(should/must)be from Germany. 9.We_(Let's/should)clean our room before our parents come back. 10.You(couldn't/might not)have seen her yesterday.She was in Beijing. 演练三：语法填空（共10空） 1.It's Saturday morning.Lily and her friends are planning their day. "We(go)to the park,"Lily says."The weather is nice." 5 初中教科版（五四制）》 【复习专版】7下Unit8 Review 2.Tom suggests,"we_(play)basketball there?"Everyone agrees. 3.At the park,they see a girl crying. "She(lose)her way,"says Lucy."We(help)her." 4.They ask the girl,"you(tell)us your name?"She says her name is Amy. 5."Your parents(be)worried,"Lily says."We(call)the police? 6.Just then,a woman runs over."Amy!I've been looking for you!" Amy's mom says,"Thank you!I(not find)her without your help." 7.Lily smiles,"You-(not worry)now.Let's-(go)play basketball together!" 答案区 演练-：1.A2B3.C4.D5.C6.B7.A8.B9.C10.A 1.should 2.Why not 3.must 4.shouldn't 5.might 6.had better 7.Why don't you 8.must 9.should 10.might not 演练三：1.should go/Let'sgo2.Could;play3.must have lost4.should help5.Can,tell6.must be 7.Should;call 8.couldn't have found 9.needn't worry 10.go 6