Unit 4 知识点讲解加练习重庆市第一中学校2022-2023学年人教版九年级英语全册

Unit 4 I used to be afraid of the dark. Section A 【1a-2c】 Mario used to be short. He used to wear glasses. (P25) 1. used to+动词原形 1) 定义：表示过去常常发生的动作或存在的状态，（现在没有了）只用于过去时态，无人称和数的变化。 I was quiet in the past. But now I am outgoing. (同义句) I________ _________ ________quiet. She had long hair before. Now she has short hair. (同义句) She________ _________ ________long hair. 2) used to句型转换 used to 否定：didn't use to 一般疑问句：Did...use to...? She used to have long hair. (否定句) She________ _________ ________have long hair. (一般疑问句) ________she_________ _________have long hair? Yes, she_________. No, she_________. (特殊疑问句) ________ _________she_________ _________have? 3) used to的反义疑问句 反义部分用did/didn't+代词 1. Sam used to watch TV first, _____________? 2. ---The twins didn't use to wear the same clothes, _______________? ---_________, they__________. It was difficult for us to find the difference. 4) 某地曾经有... There used to be+n. (否定) There didn't use to be+n. 反义疑问句：There used to be..., didn't there? 地球上曾经有许多的森林，不是吗？ There_________ ________ _________many forests on the earth, ________ _________? 5) 区别以下短语 结构 含义 to的作用 过去常常做某事 不定式符号 用……做…… 被用来做…… 习惯于做某事 介词 【练练吧】 1. I got used to___________(sleep) late on weekends. 2.They used to___________(worry) about their tests. 3. Did you use to_________(eat) candy a lot? 4. Was the cloth used to___________(clean) the table? 5. I wore glasses when I was young. (同义句) I_________ __________ _________glasses when I was young 6. I didn't cook when I was 12 years old. (同义句) I________ _________ ________cook________ _________ ________ _________12. 7. They used to swim in the river. (否定句) They________ _________ ________swim in the river. 8. I used to be shy. (一般疑问句) ________you________ ________ ________ ________？ 9. My parents________in the country, so they didn't want to stay with us in the city. A.used to B.used to living C.were used to live D.were used to living. 10. There_________a swimming pool here. A.used to have B.was used to be C