通过有趣的互动练习，学习如何正确使用"used to"表达过去的习惯和状态变化
Used to 用于描述过去经常发生的动作或存在的状态，但现在已不再如此。
根据提示，用"used to"写出肯定句和否定句。
my mom / have curly hair / have straight hair
示例: Grace used to watch a lot of TV. She didn't use to watch a lot of movies.
Jerry / read books on European history / read books on African culture
Sandy / teach British English / teach American English
根据Emily的变化，写出包含现在和过去对比的句子。
| 五年前 (Five years ago) | 现在 (Now) |
|---|---|
| didn't eat a lot of vegetables | loves carrots and tomatoes |
| listened to pop music | enjoys country music |
| was afraid of insects | likes studying ants |
| didn't read a lot of books | reads at least six books a year |
示例: Emily didn't use to eat a lot of vegetables, but now she loves carrots and tomatoes.
写出关于Emily音乐喜好的句子
写出关于Emily对昆虫态度的句子
写出关于Emily阅读习惯的句子
你已经掌握了"used to"的用法！
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