3. 反意疑问句 主句+ didn’t+人称代词？
e.g. Your brother used to have noodles for breakfast, didn’t he? 你哥哥过去早餐常吃面条，不是 吗？
(四) used to 的状语可以用副词always， often，sometimes等，但是仍然是过去的 习惯，不是指现在的习惯，所以不能用 一般现在时。
watched scary movies hates scary movies
didn’t read a lot of books
reads at least six books a year
感谢聆听
2. 一般疑问句 Did+ 主语 + use + to do…? 答语：Yes, sb. did. / No, sb. didn’.
e.g. —Did you use to go to museums? 你以前常去博物馆吗？
—Yes, I did. / No, I didn’t. 是的。/ 不是。
4b Look at the information and write
sentences about Emily.
Five years ago didn’t eat a lot of vegetables listened to pop music
Now loves carrots and tomatoes enjoys country music
Did he use to wear glasses? used to do sth. 表示过去习惯性的动作或存在的状态。 to后跟动词原形，只用于一般过去时态。
2. be used to + n. /pron./doing 意为“习惯于……”，to是介词，后接 名词、代词或动名词。可用于各种 时态。
