微课《过去进行时中的when和while的区别》教学设计

过去进行时中的when和while

教学目标：学生通过观察不同语境中when和while的使用，归纳总结过去进行时中when和while的用法，并能正确恰当得

在过去进行时态中使用。

教学步骤：

Step 1 Lend in

Present two sentences from the textbook with whe n and while.

Ask students if they can tell the differences between when and

while in past progressive tense.

Step 2 Presentation

1.Present sentences with when and fill in the blanks to conclude

the usage of when.

2.Present sentences with while and fill in the blanks to

summarize two usages of while.

Step 3 Practice

1. Make sentences with when and while.

2. Look at the table and write sentences with both while and

when.

Step 4 Summary

Think what they’ve learned.