写作部分
Integrated Writing:
Reading
Negative effects of befoul production:
1)Food shortage
2)Food price increase
3)Unhealthy food
lecture point by point：
1)用于生产fuel的食物只占很少一部分。5% corn
2)more fuel，gasoline便宜，transportation便宜，农民更容易卖食物了，price下来了。
3)把用来喂动物的grain用于befoul，肉价上涨， 人们吃的fat更少了，就更健康了。
Independent Writing:
Do you agree or disagree with the following statement? One should begin a project after finish another project.
