Unit 4 used to 的用法 课件 2022-2023学年人教版九年级英语全册

used to 的用法 难点名称：能正确使用used to结构描述或询问 过去的情况 人物今昔对比 导入 牛刀小试 课堂练习 语法结构及句型分析 知识讲解 用法总结 小结 目录 CONTENTS He was shy when he was a child, but he is really outgoing now. He used to be shy, but now he is outgoing. 导入 She had short hair when she was a student, but she has long hair now. She used to have short hair, but now she has long hair. 导入 Guo Qiling __________ heavy, but now he is thin. used to be 导入 Pan Weibo ______________ glasses, but now he doesn't. used to wear Grammar used to意为“过去常常”，用于表示过去习惯性的动作或存在的状态（强调今昔对比，暗示现在不做了）。其中to为不定式符号，后跟动词原形。used to只用于一般过去时态，没有人称和数的变化。 一、used to的用法 知识讲解 难点突破 二、used to的句式变化 主语 + to do sth. 2. 否定句 e.g. Mike didn’t use to study hard. = Mike used not to study hard. 1. 肯定句 e.g. Mike used to study hard. used not didn't use 知识讲解 难点突破 将used 视为一个情态动词来进行句型转换 3. 一般疑问句 I used to go to museums. e.g. —Did you use to go to museums? —Yes, I did. / No, I didn’t. = —Used you to go to museums? —Yes, I used to. / No, I usedn't to. 知识讲解 难点突破 4. 反意疑问句 e.g. Your brother used to have noodles for breakfast, ？ =Your brother used to have noodles for breakfast, ？ 遵循原则：前肯后否，前否后肯 知识讲解 难点突破 didn’t he? usedn’t he? 5. used to可以用在 there be 结构中表示“过去经常有”的意思. There used to be... There used to be an old library in the school. 否定用 usedn't/didn't 均可 知识讲解 难点突破 6. used to 的状语可以用副词always，often，sometimes等，强调过去的习惯，不是指现在的习惯，所以不能用一般现在时。 He always used to be late for class. 根据课本内容，完成下列句子。 1. 我以前是矮个子。 I ______ ____ be short. 2. 我以前在学校不受欢迎。 I ______ _____ to be popular in school. 3. 保拉以前的确不爱说话。 Paula _____ ____ ____ really quiet. 4. 她以前不喜欢小测验。 She _____ ___ ___ like tests. didn’t use used to used to be didn’t use to 课堂练习 难点巩固 5. 你以前很矮，不是吗？ You used to be short, _____