【正确答案】 C

【答案解析】[听力原文]
It is often necessary to release a fish, that is, set it free after catching, because it is too small, or you just don't want to take it home to eat. In some cases, releasing fish is a good measure that will help keep fish variety and build their population size. The Department of Game and Inland Fisheries (DGIF) encourages fishermen who practise catch-and-release fishing to use a few simple skills when doing so. The advice provided below will help make sure that the fish you release will survive to bite again another day.
—When catching a fish, play it quickly and keep the fish in the water as much as possible. Don't use a net in landing the fish and release it quickly to prevent it from dying.
—Hold the fish gently. Do not put your fingers in its eyes. Don't wipe the scales off the fish because it might cause it to develop a disease and reduce its chance of survival.
—Remove your hook quickly. If the hook is too deep or hooked in the stomach, cut the line and leave the hook in. The hook left inside will cause no serious problem to the fish.
—Take good care of the fish by moving it gently in water. Release the fish when it begins to struggle and is able to swim.
—Do not hold fish in a bucket or some other containers and later decide to release it. If you are going to release a fish, do so right away.
With a little care and by following the suggestions given above, you can give the released fish a better chance of survival.

Why do people sometimes set a fish free after catching it?

[解析] 浏览各选项可知，本题可能考查they对待it的方法。短文开始提到，It is often necessary to release a fish...because...you just don't want to take it home to eat，由此可知，将捕捉到的鱼放生是因为“你不想把它带回家烹饪”，故答案为C。C中的don't want to have it as food是对短文中don't want to take it home to eat的同义转述。

【正确答案】 C

【答案解析】[听力原文]
Which will probably make a fish ill?

[解析] 短文中提到Don't wipe the scales off the fish because it might cause it to develop a disease，由此可知，将鱼鳞刮下会导致鱼得病，故答案为C。A和D在短文中有所提及，但都没说会导致鱼生病，故排除。C中的removing对应短文中的wipe...off，都有“刮掉，去除”之意。

【正确答案】 A

【答案解析】[听力原文]
What is the proper way to release a fish?

[解析] 选项中的move it in water和let it struggle表明，本题可能考查对it的处理方式，it很可能指鱼。短文中提到，Take good care of the fish by moving it gently in water. Release the fish when it begins to straggle and is able to swim，由此可知，A为答案。A中的can swim是短文中is able to swim的同义转述；by+doing表方式，常设为考点，听音时应多加留意。

【正确答案】 D

【答案解析】[听力原文]
What is the purpose of the passage?

[解析] 短文一开始就提到It is often necessary to release a fish，引出话题；接着给出几点放生的建议(the advice provided below)；最后总结，遵循这几点建议可以give the released fish a better chance of survival，由此可知，短文主要是针对如何放生鱼提出几点建议，故答案为D。短文开头和结尾常为短文主旨所在，故听音时要特别留意。