Sportfishers introduced the Zander, a type of perch, to Britain’s rivers and canals in the 1970s. Because zander eat large numbers of smaller fish, they have had a devastating effect on native fish populations. To protect the native fish, a government program removed a significant proportion of the zander from Britain’s waterways last year. Surprisingly, this year the loss of native fish to zander has been greater than before.

　　4. Which of the following, if true, would most help to explain the greater effect of zander on the native fish population?

　　A. The climate in Britain is very similar to the climate in regions to which zander are native.

　　B. Most of the zander removed were fully grown, and fully grown zander eat large numbers of smaller zander.

　　C. Every year a large number of zander are caught by sportfisher in Britain’s waterway.

　　D. Previous government program designed to remove nonnative species from Britain’s waterways have failed.

　　E. Zander are just one of several nonnative fish that prey on the other fish found in Britain’s waterway.

　　1

　　Sportfishers introduced the Zander, a type of perch, to Britain’s rivers and canals in the 1970s.

　　1970 年代，S 在英国的河流及运河中引入了 Z，一种鲈鱼。

　　(Sportfishers 没有查到，可能是一群人，一个协会之类的组织，或者机构或公司，不重要，模糊了。

　　Zander 梭鲈，一种欧洲很常见的鲈鱼，主要用途是吃。

　　Whole baked zander served in a restaurant in Balatonfüred, Hungary.

　　(https://en.wikipedia.org/wiki/Zander))

　　2

　　Because zander eat large numbers of smaller fish, they have had a devastating effect on native fish populations.

　　因为 z 吃大量小于，所以它们对本土鱼类有破坏作用。

　　3

　　To protect the native fish, a government program removed a significant proportion of the zander from Britain’s waterways last year.

　　为了保护本土鱼，一个政府项目去年从英国水体中，除掉了相当大比例的 z 。

　　4

　　Surprisingly, this year the loss of native fish to zander has been greater than before.

　　结果令人震惊，去年被 z 吃掉的本土鱼数量比以前还大。

　　4. Which of the following, if true, would most help to explain the greater effect of zander on the native fish population?

　　A. The climate in Britain is very similar to the climate in regions to which zander are native.

　　B. Most of the zander removed were fully grown, and fully grown zander eat large numbers of smaller zander.

　　C. Every year a large number of zander are caught by sportfisher in Britain’s waterway.

　　D. Previous government program designed to remove nonnative species from Britain’s waterways have failed.

　　E. Zander are just one of several nonnative fish that prey on the other fish found in Britain’s waterway.

　　选 B

　　找一项能够解释，为什么杀掉了大比例的 z，其他鱼被 z 吃的情况反而恶化了。

　　B 被杀掉的 z 大多已经长成，而成年 z 会吃掉大量的未成年 z 。满足题设。

　　A 天气。看到天气就知道这是陪太子读书项。

　　C 每年 sportfisher 都钓大量的 z，这不能解释为什么去年 z 吃的本土鱼反常地多，按这种说法，去年除了民间钓 z 还有政府 removal program，情况应该好转才对。

　　D 无关项。之前的项目有没有 failed 不重要，去年项目是成功的，removed a significant proportion of the zander 。

　　E 捕食本地鱼的外来鱼，z 只是其中一种。本来挺像的，可惜文章中明确说了，去年吃本地鱼更凶的恰好还是 z，而不是其他种外来鱼。

       以上就是本文的全部内容，更多精彩请随时关注新东方长春学校官网。

相关推荐

长春新东方留学直通车