学习目标：1. Be able to read the words and expressions correctly.
2. Master the words and expressions appearing in the studying paper.
学习重点：1. The word formation
2. The usage of some key words and expressions.
学习过程:
Ⅰ. 朗读单词词组 （A级）
1. Read by yourself.
2. Turn to your partners to make sure the pronunciations (Read to your partners. help to check the pronunciation each other.)
