Unit 2 语法专练（1） -2025-2026学年人教版（2024）八年级英语上册

Unit 2 语法专练（could用法） 姓名：_______________ 情态动词could的用法 1．could用作情态动词，后接动词原型，共同构成谓语动词部分，不能单独作谓语动词。 could可以作 的过去式，表示“ ”，译为“能，可以”，没有人称和数的变化。 2．could表示“过去的能力”的各种句式 (1)陈述句： (2)一般疑问句： 肯定回答： 否定回答： (3)特殊疑问句： 3．情态动词could可以用于礼貌性提出请求和委婉地获取许可，语气比can更加委婉。 (1)    情态动词could用于礼貌性提出请求。 常用句型： 常用回答： 肯定回答： 是的，我能。(注意：不能用could回答) Yes, I’d love to./Of course./No problem./Certainly./Sure./All right./With pleasure. 乐意效劳。 否定回答： 不，我不能。(注意：不能用couldn’t回答) Sorry, I’m afraid not./I’m sorry, but... /I’d love to, but... (2)情态动词could用于委婉地获取许可。 常用句型： 常用回答： 肯定回答： 是的，你可以。 (注意：不能用could回答) Certainly. / Sure. /Of course. 否定回答： 不，你不可以。(注意：不能用couldn’t回答) Sorry, I’m afraid you can’t. 一、单项选择题（共 8 题）​ 1.My grandfather ______ play the piano very well when he was young.​ A. can B. could C. may D. must​ 2.—______ you swim in the river when you were 7 years old?​ —No, I ______.​ A. Can; can’t B. Could; couldn’t C. Could; can’t D. Can; couldn’t​ 3.—______ you please pass me the English book?​ —Sure, here you are.​ A. Must B. Should C. Could D. Need​ 4.Tom ______ ride a bike last year, but now he can ride very fast.​ A. couldn’t B. can’t C. mustn’t D. shouldn’t​ 5.—Could I use your mobile phone for a call?​ —______, but please be quick.​ A. I’m sorry B. Of course C. No, you couldn’t D. Yes, you could​ 6.My sister ______ sing English songs when she was in Grade 5.​ A. can B. could C. will D. shall​ 7.—Could you help me clean the classroom after school?​ —______, I have to look after my little brother.​ A. With pleasure B. Of course C. I’m sorry D. Sure​ 8.—Could I go to the movies with my friends tonight?​ —______, but you have to finish your homework first.​ A. No, you can’t B. Yes, you can C. No, you couldn’t D. Yes, you could​ 二、用括号内所给词的适当形式填空（共 5 题）​ 1.He can______ （play） the guitar when he was 10 years old, but now he ______ (not can) because he hasn’t practiced for a long time.​ 2.—could you please______ （help） me carry this heavy box?​ —Sure, I’d love to.​ 3.My mother ______ (not can) cook delicious food last year, but now she is a great cook.​ 4.—Could I ______ (borrow) your dictionary?​ —Of course, you can. Here you are.​ 5.They ______ (can) not go to the park yesterday because it rained heavily. 学科网（北京）股份有限公司 $