used to 的用法和相关的短语I used to be afraid of the dark.He used to have no hair.Did he use to be short?一. used to “过去”表示过去的习惯，暗示现在不再这样了；to后面接动词原形；这个结构只有过去式，用所有人称。I used to be afraid of the dark.He used to have no hair.Did he use to be short?e.g. He used to be short, but now he is tall.1. used to 的肯定形式 ① used to do sth. 过去做某事 I used to get up late.② used to be… 过去曾是… He used to be an outgoing person. 二. “used to”结构的不同形式3. used to 的一般疑问句① Did… use to … ？ ② Used… to…?e.g. Did she use to be tall? = Used she to be tall?2. used to 的否定形式 ① didn’t use to … ② usedn’t to … 过去不…e.g. She didn’t use to be tall. = She usedn’t to be tall. 4. used to 的反义疑问句① 疑问部分为：did / didn’t + 主语– You used to be short, didn’t you? – Yes, I did. / No, I didn’t.② 疑问部分为： used / usedn’t + 主语– You used to be short, usedn’t you?– Yes, I used to. / No, I usedn’t to.used 相关短语的区别I used to do morning exercises.They are used to running every day.Cotton is used to make clothes.The big box is used as a dust bin.1. used to do sth. 过去做某事e.g. I used to get up early. He used to be short, but now he is tall.2. be/get |
