请用微信扫描当前图片获取下载验证码
×
Step 5
书34页
2d对话
给时间练习 引导时间状语从句的时候，when可以用于各种时态while只能用于进行时态。
when和while 还可作并列连词。when表示"在那时"；while表示"而，却"，表对照关系。如：
a. The children were running to move the bag of rice when they heard the sound of a motor bike.
孩子们正要跑过去搬开那袋米，这时他们听到了摩托车的声音。
b. He is strong while his brother is weak.
他长得很结实，而他弟弟却很瘦弱。
-
相关教案下载
- 1Unit5 What were you doing when the rainstorm came教案下载6
- 2Unit5 What were you doing when the rainstorm came教案下载24
- 3Unit5 What were you doing when the rainstorm came教案下载1
- 4Unit5 What were you doing when the rainstorm came教案下载14
- 5Unit5 What were you doing when the rainstorm came教案下载21
- 6Unit5 What were you doing when the rainstorm came教案下载5
- 7Unit5 What were you doing when the rainstorm came教案下载13
- 8Unit5 What were you doing when the rainstorm came教案下载18
- 9Unit5 What were you doing when the rainstorm came教案下载2