Lesson 17 Always young 青春常驻（情态动词must和have to的用法）-【新概念英语2】同步语法

377 参 考 答 案 He said that he was born in 1996. 2. He said, “The bus will leave at 5.40.” He said that the bus would leave at 5.40. 3. He told me, “I once worked as a teacher.” He told me that he had ever worked as a teacher. 4. Tom told Kate, “I have already fi nished my homework.” Tom told Kate that he had already fi nished his homework. 5. He told me, “I have known you.” He told me that he had known me. 二、 6. × speaks→spoke 7. √ 8. √ 9. × is→was 10. √ Lesson 16 一、 1. If I have time, I will visit him tomorrow. 2. If you are busy, I will call you tomorrow. 3. If it rains tomorrow, I will stay at home. 4. If you have fi nished this novel, lend it to me please. 5. If you don’t hurry, you will miss the bus. 二、 6. won’t pass 7. fi nish 8. will have 9. don’t lose 10. will; do Lesson 17 一、 1. This must be your pen. 2. He must be mad. 3. You must see a doctor. 4. The boy must be a fool. 5. He must have finished his homework yesterday. 二、 6. must 7. must 8. must 9. have to 10. had to Lesson 18 一、 1. He has a new car and a boat. $$ L e sso n 1 7 61 Always young 青春常驻 ——情态动词must和have to的用法 语法初体验 观察句子找规律 1. You must be there on time. 你必须准时到那里。 2. We must obey orders. 我们必须遵守命令。 3. You must come early next time. 下次你必须早点到。 4. You must go on foot. 你必须走着去。 5. It is time for the meeting. I have to go now. 到开会的时间了，我必须走了。 1. You must be there on time. 必须 (must+动词原形) 2. We must obey orders. ( ) 3. You must come early next time. ( ) 4. You must go on foot. ( ) 5. It is time for the meeting. I have to go now. ( ) 以 上 五 个 句 子 中 ， 句 1 、 2 、 3 和 4 的 谓 语 部 分 用 的 都 是 “ + ” 结 构 ， 表 示 主 语 必 须 做 某 事 。 句 5 的 谓 语 部 分 用 的 是 “ + ”结构，也表示主语必须做某事。 总结规 律 分析句子做总结 分析句子做总结 2. 必须 (must+动词原形) 4. 必须 (must+动词原形) 3. 必须 (must+动词原形) 5. 必须 (have to+动词原形) 总结规律 must; 动词原形；have to; 动词原形 Lesson 17 2 62 语法再回首 教材语句回顾 1. She