1.to master the usage of the v–ed form as object complement
2.to be able to use the v–ed form flexibly.
important point and difficult point: to use the v–ed form properly
使用说明及学法指导：1. 自我学习同步测练相关的内容，完成预习案。 2. 完成时间20分钟。
预习案previewing case
task 1翻译下列句子，注意使用v-ed形式的用法。
1. my grandfather had his old house rebuilt. ________________________________________________________
2. they kept the door locked for a long time.________________________________________________________
3. i raised my voice to make myself heard by all the students. __________________________________________
