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Directions: You have 20 minutes to plan and write your response. Your response will be judged on the basis of the quality of your writing and on how well your response presents the points in the lecture and their relationship to the reading passage. Typically, an effective response will be 150 to 225 words.
题目原文：
是否应该releasing beavers。
听力材料：
releasing beavers的好处大于坏处
1. Beavers并不会在每条河流中build dams,很多build dams的河流是still的
2. Beavers通常在Long river中，通常long river水流很快,beavers可以slow down the water flow,这样对农田有利
3. 把有些trees kill掉反而使vegetation多样化，因为部分树木挪调之后会使原本在树荫下的植物有更多的阳光，这样这些vegetation就可以长的更好，就会出现一个new ecosystem
阅读材料：
beavers should not be released in England
1. Beavers use wood build dams,这样就会block the water flow
2. Beavers 会dig holes,然后使ground above腐烂，不利于farmland
3. Beavers’teeth are so strong that they will burrow in trees and thus kill the trees
