语法 情态动词（课件）-2025-2026学年外研版（三起）（2012）英语六年级下册

情态动词 + V原 概念 表示说话人对某行为或事物的态度和看法 分类 1. must: “必须,肯定” 2. mustn't: “禁止” [ˈmʌsənt] [mʌst] 3. have/has to/ had to : 不得不 4. don't /doesn't /didin't have to : 不必 1. I have to study hard. 2. I must study hard. 我不得不努力学习 我必须努力学习 辨析: must 与have / has to must: 说话者认为有必要有义务去做某事 have/has to :说话者被迫去做某事 4. need: 需要 5. needn't: 不必 6. can --- could: 一定,可以,能 7. can't, couldn't: 不可能,不可以 8. may --- might: 可能, 也许 9. may not --might not 可能不,也许不 10.shall -- should: 应该 11. shan't --shouldn't: 不应该 12. will ---- would: “愿意,将要” 13. won't --- wouldn't 你肯定吃了我的东西 You must eat my food. 那个男人不可能是李老师 That man can't be Mr. Li. 明天可能有阵雨 It may/might be showery tomorrow. 你禁止玩电脑游戏 You mustn't play computer games. 周日我不必早起 I need't / don't have to get up early on Sunday. 我明天可能不去上学 I may not/might not go to school tomorrow 疑问句型 1. May I ....? May I use your book? “我可以...吗?” 1. May I ....? Yes, you may. “我可以...吗?” No, you mustn't/can't. 2. Must I ...? “我必须...吗?” Must I get up early? 2. Must I ...? Yes, you must. “我必须...吗?” No, you needn't / don't have to. 3. Need I ...? Need I go over lessons? “我需要...吗?” 3. Need I ...? Yes, you need. No, you needn't. “我需要...吗?” May I use your book? 我可以用下你的书吗? Yes, you may. No, you mustn't/can't. 我必须要早起吗? Must I get up early? Yes, you must. No, you needn't / don't have to. Need I go over lessons? 我需要复习功课吗? Yes, you need. No, you needn't. 1. John ___ come to see us tonight, but he isn't very sure. A. may B. can C. has to D. must A 2. - May I take this book out? Yes, No, you may. you mustn't. you can't 3. You __ go and see a doctor at once because you've got a fever发烧 立刻 A. can B. must C. may D. might 一定/可以/能 必须 可能/也许 可能/也许 B 4. - Can you speak Japanese? Yes, No, I can. I can't. 5. -Shall I get one more cake for you, Dad? -Thanks, you ____, I've had enough. 足够的 A. may not B. must not C. can't D. needn't 可能不 禁止 不可能 不必 D 6. He isn't at school. I think he ___ be ill. A. can B. shall C. must D. has to 将要 不得不 肯定 C $