Unit 1 情态动词总结+练习2022-2023学年人教版英语 七年级下册

情态动词总结和练习题 一、情态动词种类总结 1. can表示体力或脑力方面的“能力”、“技能”或根据客观条件能做某种动作的“可能性”, 否定形式：can not+动词原形，表示“不可能”。但表示人的体力或智力的具体动作时须用 be able to. He was able to do that without any help. 他不需要任何帮助就能完成这项工作。 2. may表示“允许，可以”，相当于be allowed to。否定形式：may not+动词原形，表示“不可以”。 may或might可和as well连用，表示“建议”，译为“还是……的为好” You may as well keep a certain distance from that mad man. 你们还是离那疯子远点为好。 You might as well go home now.你还是现在回家为好。 3. must表示“必须”或“应当”、“一定”。 否定形式：must not+动词原形。译为“禁止”。 4. have to 加动词原形，表示“不得不”，“必须”，它比must更强调客观。否定形式：don't \ doesn't have to+动词原形。 You don't have to walk so fast. 你不必走那么快。 Tom had to work into the deep night every day to earn a living. 汤姆为了生计每天都得工作到深夜。 5. should 表示“劝告”，“建议”或“义务”时，译作“应当”，或表示“预测”和“可能”。 否定形式：should not+动词原形。 He should take care of his parents as they are old enough not to live on themselves. 由于父母亲老了，不能自理，他应当照顾他们。 He should be there now. 他应该在那儿。 6. ought to，后面接动词原形，表示“有义务”或“必要”做某事，译为“应当，应该”。 否定形式：ought not to+动词原形。 7. dare 译为“敢做”。可以用作情态动词，后面跟动词原形，否定形式：dare not + 动词原形。可以用作实义动词，后面跟to do，否定形式：don’t / doesn’t dare to + 动词原形。 8. need译为“需要做”。可以用作情态动词，后面跟动词原形，否定形式：need not + 动词原形。可以用作实义动词，后面跟to do，否定形式：don’t / doesn’t need to + 动词原形。 二、情态动词练习题 1．—May I stop my car here? —No, you . A. can't B. mustn't C. needn't D. don't have to 2. —Must we clean the house now? —No, you _______. A. needn't B. may not C. mustn't D. can't 3. John his father about his failure in the exam. A. dares not tell B. dares not telling C. dare not tell D. dares not to tell 4. You return the book now. You can keep it next week if you like. A. can't B. mustn't C. needn't D. may not 5. Johnny, you play with the knife, you hurt yourself. A. won't...can't B. mustn't...may C. shouldn't...must D. can't...shouldn't 6. —Would you go out for a walk with me? —No, I . My girl friend is coming. A. wouldn't