Task1
　　What can we do to solve air pollutionproblems?
　　Sample: The first thing thatI can think of to solve air pollution is to plant trees. Because now theindustry has been well developed so it is inevitable for the city to face largeamounts of emissions of waste gas. As we all know, trees can act like a machineto purify air by absorbing useless gas and releasing oxygen. Since we can’tstop industrial development, planting trees will help a lot to reduce thepollution problem. The second way is to encourage people to ride bikes or takewalk instead of driving cars. Because the cars can release tail gas which isalso a negative impact on the environment. If people have the awareness ofchanging their traffic modes, I’m sure it will work.
　　解析：此题为环保类话题，空气污染是环境污染重最重要的一个话题。最常用思路为种树，这边需要学生素材积累：种树能净化空气的原理。除此以外，骑自行车也是同学很熟悉的保护环境的方法，不难想到。
　　Task2
　　Which kind of roommate do you prefer: aroommate from a foreign country or a roommate from your own country?
　　Sample: I prefera roommate from a foreign country. First, the roommate with different cultural backgroundmay provide distinct perspectives of thinking of questions. Because we grew in disparateenvironment with different education pattern, she may give me some constructiveadvices that I haven’t thought of when I get into trouble. Second, the life canbe more interesting with the roommate from another area. We can share our ownlife experience and cook meals with local food for each other. Also, I willknow more about the culture of her hometown. With more knowledge about diversehistories and customs, I’m able to build a more comprehensive worldview as wellas respect others well.
　　解析：选择哪种室友无所谓，2种选择都从2个角度出发：1)哪个帮助学习，解决问题 2)哪个让你生活更美好。细节扩展务必使用场景植入进行并列列举，必要时可以对比举例。
　　Task3:
　　写信要求学校把一次性借书数量降低到10本
　　1. 可以减少借书丢失
　　2. 学生也看不了这么多书
　　女生反对，因为她一次research要看20读本书，而且她每次都会还书
　　Task 4:
　　Alarm signals，讲group生活的animal会用这个来warn危险来临带来2个用处：放哨以及减少食物竞争。
　　1) 猴子move in group and share food together，看到豹子就大叫，然后大家跑路
　　2) 一只发现食物的monkey发出了alarm，其他听到信号的monkey都赶紧躲了起来，结果食物都被这只猴子独享了。
　　Task 5:
　　女孩父母来看她，她想打扫房间但是有chemical study group，化学很难，study group很有帮助。
　　1) 放弃study group，但是很有用
　　2) 去study group回去随便打扫一下
　　Task6:
　　Product packaging redesigned for 2 reasons
　　new technology makes new materials available
　　eg：牛奶玻璃瓶expensive fragile被塑料取代
　　2)more competitive
　　eg： soft drink的公司生产potable and small package，所以原来牛奶公司一开始很大的牛奶瓶没有了，方便客人开车走路的时候可以喝