2023年中考英语语法复习之情态动词考点易混点总结

情态动词易混点总结 易混点 1：must和have to 1) 两词都是'必须'的意思, have to表示客观的需要; must 表示说话人主观上的必要。 My brother was very ill, so I had to call the doctor in the middle of the night.　 He said that they must work hard. 2) have to有人称、数、时态的变化, 而must只有一种形式。 He had to look after his sister yesterday. 3) 否定结构中: don't have to表示"不必", mustn't表示"禁止"。 You don't have to tell him about it.　 You mustn't tell him about it.　　　　 练习： 1. 用mustn't 或don't/doesn't have to 完成下列句子 1) I don't want anyone to know. You tell anyone. 2) I can stay in bed tomorrow because I go to work. 3) There's a lift in the building, so we climb the stairs. 4) You forget what I told you. It's very important. 5) You be a good player to enjoy a game of tennis. 6) Don't make so much noise. We wake the baby. 2. Multiple Choices 1. —Dad, must we wait until the light becomes green? —Yes, I'm afraid we______ .That's the traffic rule. A. can B. may C. have to D. need 2.—Li Lei, hurry up! The bus is coming. —Oh, no. We ______ cross the street until the traffic lights turn green. A. mustn’t B. may not C. needn’t D. have to 3. Excuse me, sir. You ______ open the door before the train stops. A. mustn't B. needn’t C. may not D. don’t have to 4. —_____I finish my homework now? —No, you_____. Your work is over today. A. Can't; must B. Must; don't have to C. May; couldn't D. Couldn't; could 5. —Honey, how are you feeling now? —I am much better, Mum. So you ________ take me to see the doctor. A. can't B. mustn't C. needn't D. couldn’t 6. It’s getting dark. I _____ go home now. A. can B. would C. have to D. need 易混点2： can和could 1) 用在疑问句中表示征求对方意见时，could比can更加委婉礼貌。 Could I borrow your dictionary? Can I borrow your dictionary? 2) 用在过去时句子中只能用could I couldn’t swim well when I was a kid but now I am a good swimmer. At the age of ten, I could remember things very quickly. 练习： 1. --Could I borr