学习目标：
知识和技能
1. Get students to know the structure of the present perfect passive voice.
2. Let students learn the usages of the present perfect passive voice.
3. Enable students to use the present perfect passive voice correctly and properly.
情感态度和价值观
1. Get students to become interested in grammar learning.
2. Develop students’ sense of group cooperation.
过程与方法
1. Task-based teaching and learning
2. Cooperative learning and practice
Teaching procedures
Step 1 Revision （7—10；12—14应用一课时复习该部分内容。）
1. Dictate some new words and expressions.
2. Translate the sentences into English:
1) 他太聪明了，大家都喜欢他。____________________________________
2) 他是一个如此聪明的男孩，以致于大家都喜欢他。______________________________
3) 他取得如此大的进步，以致于老师们都对他很满意。_____________________________
4) 他出了太多的差错，所以考试失败了。________________________________________
