The listening and the reading both discuss three ways of tackling lionfish’s expansion from Indian Ocean to Pacific Ocean. However, what the reading suggest is quite different from the main idea in the listening.
First, in the reading, it’s said that the migrated lionfish should be captured by human to protect the coral reef system. In contrast, the professor holds a different view that many people cannot distinguish lionfish from other fishes. Moreover, many rare fishes also live 登录查看全部内容
第2题来源：北美话题分类：Environment属性：小范围核心预测
话题
【题目】coal ash的污染很严重，需不需要new much stricter regulations on handling and storing coal ash。
阅读要点
【阅读】说不需要，有几个理由。
1. 相关的regulation已经存在，要求company to use LINER on the ponds什么的。
2. 他怕新的严格的规定，会让人们不敢再买recycled coal ash。
3. increasing cost. 电费会涨十倍，大众会不接受。
听力要点
【听力】认为需要。
1. 原本的规定只要求company在新的ponds上用liner，old ones are not required。所以现在old ponds还是会产生许多coal ash， 会进入地下水，最后污染饮用水。
2. professor举了mercury的例子：在mercury 的问题上也有很严格的regulation, 但是人们依然在买recycled mercury for over 50 years。
3. 电费确实会涨到多少billion，但是平均到人头上，每个人的电费就只涨了1%而已。It is not a big price to pay to have a cleaner environment.
The reading material has proposed three possible methods to prevent birds hitting into tall buildings, but the professor claims that none of the three methods is effective enough to hinder the problem.
Firstly, from the perspective of glass with pure color, the professor states his doubt, because according to the 登录查看全部内容
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