Unit 3 Grammar语法 情态动词could的用法-2023-2024学年八年级英语下册单元语法精讲精练（人教版）

Unit 3 Could you please clean your room? 重点语法 情态动词could的用法 （时间：60分钟，满分：100分） 一、提出礼貌的请求 could表示委婉地请求，其句型结构主要有： 1. Could you +动词原形+...? 2. Could you please+动词原形+...? 意为＂请你做……好吗? ＂句型2比句型1语气更加委婉。肯定回答：Yes, sure. / Sure. / Of course. / No problem. 否定回答：Sorry. / Sorry, I can’t. ☞ Li Lei, could you please help me? 李雷，请你帮我个忙好吗？ ☞ —Could you come here soon? 你尽快过来，行吗？ —Sure. 当然可以。 二、表示请求许可 1. could表示请求允许，其句型结构为： Could I/we +动词原形+...? 意为＂请问我（们）能做……吗? ＂ 肯定回答：Sure. / Of course. / No problem. 否定回答：I’m sorry / Sorry, you can’t. 若关系比较亲近，也可以直接说No, you can’t. ☞ Could I come in? 我可以进来吗？ 2. 另外，用Could I ...？时，表示请求对方准许，对方回答时不能用could，而要用can。 ☞ —Could I use your bicycle? 我可以用你的自行车吗？ —Yes, you can. 是的，可以。学！科网 3. 对于这种请求的肯定和否定回答的常用语 肯定回答常用语：Certainly. / Of course. / With pleasure. / No problem. / Sure. / Yes, you can. 否定回答常用语：I’m afraid not. / No, I’m afraid I can’t. / No, you can’t. 一、单项选择(本大题共50小题，每小题2分，共100分) 1．— Could I borrow your dictionary? — Of course you ________. A．could B．will C．should D．can 2．—Excuse me, ________ you please help me clean the classroom? —No problem. A．should B．must C．need D．could 3．—Could you go to the library with me this weekend? —Sorry, I ______. I’m leaving for Shanghai to join the English Speech Contest(演讲比赛). A．can’t B．couldn’t C．am not able to 4．Bob ________ play basketball at all two years ago, but now he ________ do it well. A．could; can’t B．could; can C．couldn’t; can’t D．couldn’t; can 5．—________ I watch TV after finishing my homework? —Yes, you can. A．Must B．Need C．Could D．Should 6．--- Robert, could you wash the car for me? --- Yes, I _______. I’m coming, dad. A．could B．couldn’t C．can D．can’t 7．________ you please pass me a pen? I’d like to write down the telephone number A．Need B．Could C．Must D．Should 8．Mary_______ not ride a bike in the past,but now she_______ do it. A．can;can B．can;could C．could;could D．could;can 9．Last year I _________ drive. I used to take the bus. A．could B．couldn’t C．should D．shouldn’t 10．—It’s boring to walk alone here. —Yo