情态动词can could-2025-2026学年七年级英语下册语法重难点精讲（仁爱版）

7下仁爱版 【寒假专版】 情态动词can/could精讲 寒假专版 【语法专题】情态动词can/could专项突破 初中仁爱版七年级下册 语法精讲 语法概述：情态动词can/could表示能力或许可，can用于现在或将来，could用于过去或委婉语 气，在句中后接动词原形，可表示“能/会做某事”或“可以做某事”。 一、 重难点讲解 重难点一：can与could的基本用法及区别讲解： can表示现在的能力、许可或可能性，could是can的过去式，表示过去的能力、许可或委婉请求。 cn用于现在时态，无人称变化；could可用于过去时态，也可用于现在时表委婉语气，但回答仍 用can。 I can speak English fluently.(现在能力) She could swim when she was five.(过去能力) Could you please pass me the book?(委婉请求)一Sure,Ican.(回答用can) 真题再现： 1.(2024湖北武汉期中，仁爱版)一_you play the piano?-Yes,Ican.I started learning last year. A.Can B.Could C.Must D.Should 答案：A解析：答句用can回应，问句询问现在的能力，用Can。 2.(2023湖南长沙月考，仁爱版)My grandfatherwalk fast when he was young,.but now he can t. A.can B.could C.must D.should 答案：B 解析：when he was young表示过去时间，用cold表示过去的能力。 1 7下仁爱版 【寒假专版】 情态动词can/could精讲 重难点二：can/could表示许可的用法讲解： can表示“允许”时，常用于口语中，可用于肯定句、否定句和疑问句：could表示“允许”时更 委婉，常用于疑问句，肯定回答用can/may,否定回答用can't/mustn't。 You can go home now.(肯定许可) Can I use your pen?(请求许可)一Yes,you can.No,you can’t. Could I borrow your dictionary?(委婉请求许可)一Of course,.you can. 真题再现： l.(2024四川成都期末，仁爱版)一_we eat in the classroom?-No,you_.It's against the school rules. A.Can;can’t B.Could;could C.Must;mustn't D.May;needn't 答案：A解析：问句询问是否允许，用Ca:否定回答表示“不允许”，用can’t。 2.(2023广东广州月考，仁爱版)一CouldI leave the meeting early?I have a doctor's appointment -Yes,you.But please tell the manager first. A.could B.can C.must D.should 答案：B 解析：could表委婉请求，肯定回答用can表示许可。 重难点三：ca/could表示可能性的用法讲解： c表示理论上的可能性（常用于否定句和疑问句），could表示推测的可能性（可用于肯定句、否 定句和疑问句)。 tca'’t be true.(否定推测，“不可能”) Where can he have gone?(疑问推测) He could be at home now.(肯定推测，“可能”) 真题再现： 1.(2024江苏南京期中，仁爱版)一Who sent this gift?一It be Lucy.She said she would send me a surprise A.can B.could C.must D.need 答案：B解析：表示推测“可能是露西”，用could。 2.(2023浙江杭州期末，仁爱版)-Is that Mr.Wang speaking?-It_be him.He has gone to Beijing for a meeting. 2 7下仁爱版 【寒假专版】 情态动词can/could精讲 A.can B.could C.can’t D.mustn’t 答案：C解析：根据“他去北京开会了”，否定推测“不可能是他”，用can’t。 重难点四：can/could的否定句和疑问句结构讲解： 否定句：主语+can/could+not(can’t/couldn’t)+动词原形 He can’tride a bike.(can的否定句) She couldn't finish the work yesterday..(could的否定句) 疑问句：Can/Could+主语+动词原形+其他？ Can you help me with my homework?(can的疑间句) Could they arrive on time?(could的疑问句) 真题再现： 1.(2024 山东青岛月考，仁爱版)一_your brother swim when he was ten?-No,he_.But now he can. A.Can,can’t B.Could;couldn't C.Must;mustn't D.May;needn't 答案：B解析：when he was ten表示过去时间，用Could提问，否定回答用couldn’t。 2.(2023湖北襄阳期末，仁爱版)They_play basketball outside because it's raining heavily A.can B.could C.can’t D.couldn't 答案：C解析：根据“正在下大雨”，表示现在不能打篮球，用can’t。 易错点综合演练 L单项选择（直击重难点） 1.She dance very well when she was a child. A.can B.could C.must D.should 2.-I use your computer?I need to check my email. 3 7下仁爱版 【寒假专版】 情态动词can/could精讲 -Sorry,you.My brother is using it now. A.Can;can't B.Could:could C.Must;mustn’t D.May;needn't 3.It be Tom at the door.He has gone to Shanghai on business. A.can B.could C.can't D.mustn't 4.-you speak French?-Yes,I can.I learned it in high school. A.Can B.Could C.Must D.Should Ⅱ.用所给词的适当形式填空（强化句型结构） 1.My grandmother(can)play the piano when she was young,but now she(not can). 2.(can)you please pass me the salt?I can't reach it. 3.He (can)not go to the party last night because he was ill. 4.It(could)rain tomorrow,so you'd better take an umbrella. Ⅲ.短文填空（综合运用can/could) 用can,could,.can't或couldn’t的适当形式填空，使短文完整通顺。 Hello,everyone!Let me tell you about my family.My father is very talented.Heplay the guitar and he also sing very well.When he was young,he even dance hip-hop.My mother is a doctor.She speak three languages:Chinese,English and French.But sheswim when she was a child.She learned it when she was 20.I play the piano,but I play the violin yet.I want to learn it next year What about you?you play any musical instruments? V.连词成句（聚焦句型结构） 1.could,I,your,use,phone,please,(? 2.can't,the,be,answer,right,it,( 3.when,she,five,could,was,swim,she,( 4.you,can,help,me,with,math,my,(? 7下仁爱版 【寒假专版】 情态动词can/could精讲 V.按要求改写句子（巩固否定、疑问句式） 1.He can play basketball well..(改为否定句) 2.They could finish the work on time.(改为一般疑问句并作肯定回答) 3.Can she speak Japanese?(作否定回答) 4.Tom could ride a bike when he was six.(对划线部分提问) 综合演练参考答案 I.单项选择：1B2.A3.C4.A Ⅱ.用所给词的适当形式填空：1.could,couldn't2.Can3.could4.could Ⅲ短文填空： can can could can couldn't can can't Can V.连词成句： 1.Could I use your phone please? 2.It can't be the right answer. 3.She could swim when she was five. 4.Can you help me with my math? V.按要求改写句子： 1.He can't play basketball well. 2.Could they finish the work on time?Yes,they could. 3.No,she can't. 4.When could Tom ride a bike?