题目原文：
Throughout the world’s oceans, hard structures such as natural reefs provide ideal marine habitats. Reefs provide hard surfaces to which plants, coral and sponges can attach, and thereby provide food and shelter for many types of fish. Recently, workers in the fishing industry have tried to increase the amount of suitable habitat for fish by construction artificial reefs from old metal objects and industrial materials and placing them in coastal waters. Artificial reefs have several benefits.
Many fishers believe that by giving fish more places to gather and reproduce artificial reefs have increased the populations of some species of fish. For example a report from one extensive artificial reef program in the Gulf of Mexico shows that the number of red snapper fish harvested in the area has increased by as much as ten times compared with harvests century ago. The increases in the number of fish caught began after the start of the artificial reef program.
Artificial reefs can also improve the economic competitiveness of small-scale fishers. This is because small-scale fishers are able to create their own private artificial reefs in secret locations only they know. Currently, small-scale fishers struggle to compete with larger corporations because fishing grounds are limited in number and most are known to everyone. Creating fishing areas known only to the fishers who make them will help independent fishers support themselves and their local communities.
Finally, artificial reefs are a good way to recycle materials no longer needed for other purposes. Artificial reefs can be made from old cars and other objects that are otherwise difficult to dispose of. Once these materials have been cleaned to ensure that no harmful chemicals remain, they can be placed in the ocean to serve as reefs for marine life. Artificial reefs thus provide a relatively inexpensive, environmentally friendly way to reuse materials.
题目音频：
写作真题第137套（rs062）
http://mp.weixin.qq.com/s?__biz=MzI3ODM5NzI3Mg==&mid=2247504627&idx=6&sn=68f721d69e9f2b8c5297a7514196431f&chksm=eb553ac4dc22b3d2e465600206b42c492a0824b5300ccf7d646dd3d0483b26fc1ed4804da946&scene=21#wechat_redirect
学术写作：
小学时和不同年龄的孩子同班是否合理？
Dr. Achebe
Let’s talk about how primary schools group their young students. Do you think it’s better for students to be in classes with others very close to their own age or with a wider age range of students? Why?
Claire
I’m intrigued by the idea of classes with a wider age range of students. They can learn from each other.
Andrew
Well, I am thinking about the teachers. Multiage classes might be especially challenging for them.
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