Writing
Task 1重复NA 2010.10.22
综合写作
【主题】湿地(wetland)里面鬼火(will-o’-the-wisp)的原因
Reading：(1)埋在里面的有机体释放出的可燃气体;(2)鬼火是一种electric spark;(3)一种能发光的蘑菇附着在鸟的身上
Listening：反驳：(1)可燃气体是不动的，但是人们看见的鬼火却是move around;(2)electric spark是在wetland下面的rock中生成的，不会跑到上面来;来源：北京新航道
Task 2 重复NA 2011.3.11
独立写作
Do you agree or disagree with the following statement? Although science and technology will continue to improve, the most significant improvement for the quality of people's lives has already taken place.