寄语：Early birds can get worms.早起的鸟有食吃。
Learning aims: 1. master the new words and phrases in lesson
2. to get the general idea of the text
一、知识回顾：
1经济___________________ 2.包含，含有___________________
3.农作物，庄稼___________________ 4.举止，表现___________________
5.移开，挪走________________________ 6.使困惑________________________
7.呼吁，引起兴趣___________________ 8.前进，取得进展___________________
二、单词拓展
