2024年中考复习语法之情态动词讲义

Could 1. 表示能力或许可 是can 的过去式，意为“能；会；可以”。 2. 表示提出礼貌的要求 可以委婉地请求对方做某事，即委婉地提出请求。 常用在“Could you…?”句式中，意为“请你……好吗？”。肯定回答：Sure./Certainly./Of course./No problem./I'd love to.否定回答：Sorry, l can't./I'd love to, but I… 3. 表示请求或允许 could 表示请求或允许时，并不表示过去，只表示语气更加委婉，表示委婉的请求和陈述看法时，回答时用 can。常见句式：Could I…? 意为“我可以……吗？”。 肯定回答：Yes, you can./Sure./Certainly./Of course./No problem. 否定回答：Sorry, you can't. 4. 表示建议 意为“可以”，语气比can 更加委婉。 例：You could ask your doctor to check you over and do a few tests. 单项选择 1. — Could you take the dog for a walk, Tom? — . I have a lot of homework to do. A. Sorry, I can't B. No problem C. I agree D. No, I couldn't 2. — you please play tennis with me? — Sorry, I . A. Could; can't B. Could; couldn't C. Can; don't D. Could; could 3. David, you please sweep the floor and take out the trash? A. could B. may C. might D. must 4. — Could you please tell me the way to the library? — . Go along this road and you'll see it. A. Yes, I could B. No, I couldn't C. Yes, sure D. No, I can't 5. — Could you help me with my English after school? — . A. It's a pleasure B. With pleasure C. You're welcome D. OK, I could 6. — Tom, could you please take out the rubbish? — . A. Me, too B. What a pity C. See you D. No problem 7. — you please do the dishes, Sarah? — Sure, I will do it after I finish my homework. A. Could B. Should C. Must D. May 8. — Could I have the television on? — . A. Yes, you can B. Yes, you could C. No, you couldn't D. No, you can 9. — Could I use your dictionary? — Of course, you . A. can B. could C. can’t D. couldn’t 10. — people talk with friends by QQ twenty years ago? — No, but today most of us do that. A. Can; could B. Could; can C. Could; could D. Could; can't Should 1. 某人有必要或有义务去做某事，意为“应该，应当”。后接动词原形，无人称和数的变化。 shouldn't 是其否定结构，意为“不应该……”。通常可与ought to 互换。 例： You should answer my question in English. 你应该用英语回答我的问题。 They shouldn't drive the car too fast.他们不应该开车太快。 2. 征求对方的意见，意为“应当；应该”。 一般用于第一人称的一般疑问句或特殊疑问句中。例： Should I help her clean the park? 我应该帮她打扫公园