Unit 9 Have you ever been to a museum ?
Teaching goals :1. 掌握如何表达现在完成时。
2. 对比现在完成时，一般过去时和现在进行时表将来的用法。
3. 描述某人曾经去过哪些有趣的地方。
Important and difficult points :1. 现在完成时态。
2. so 和neither 的区别。
3. have been to sw 与have gone to sw 的区别。
Structures :
Have you ever been to an aquarium ?
Yes , I’ve been to an aquarium .
No ,I haven’t .
No ,I’ve never been to an aquarium .
I’ve never been to a water park . Neither have I .
