It is often necessary to release a fish, that is, set it free after catching, because it

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 practice 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 (存活) 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 (鱼鳞) off the fish because it might cause it to develop a disease and reduce its chance of survival.
—Remove your hook (鱼钩) 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.
【小题1】 People sometimes set a fish free after catching it because they A．don’t want it to dieB．hope it will grow quicklyC．don’t want to have it as foodD．want to practice their fishing skills【小题2】Which of the following will probably make a fish ill?A．Taking the hook off it.B．Removing its scales.C．Touching its evesD．Holding it in your hand.【小题3】 A proper way to release a fish is to .A．move it in water till it can swimB．take the hook out of its stomachC．keep it in a bucket for some timeD．let it struggle a little in your hand【小题4】What is the purpose of the test?A．To show how to enjoy fishing.B．To persuade people to fish less often.C．To encourage people to set fish free.D．To give advice on how to release fish.C

(答案→)C 解析：本文主要讲述如何提高钓到的小鱼放养成活率。【小题1】细节理解题。从文章第一段的语句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.可知钓到的鱼太小，不想带回家煮着吃。【小题2】细节理解题。从文中第二条建议Don’t wipe the scales (鱼鳞) off the fish because it might cause it to develop a disease and reduce its chance of survival.可知刮掉鱼鳞会让鱼生病，减少成活的机会。【小题3】细节判断题。从第四条建议Release the fish when it begins to struggle and is able to swim.可知答案，其余三种情况都是错误的做法。【小题4】推测作者的写作意图题。从文章第一段最后一句The advice provided below will help make sure that the fish you release will survive (存活) to bite again another day.（中心句）及文章最后一段的总结句With a little care and by following the suggestions given above, you can give the released fish a better chance of survival.可知写这篇文章的目的是就如何放养钓到的小鱼，使他们的成活率更高提出了一些建议。

我明天再问问老师，叫他解释下这个问题