[写作小分队] puppy 的作文帖——求改作文共同进步

Contradicted to what indicated in the reading passage, the speaker argues against the three measures to get rid of the cane toad which is an exotic species(specie 单数) introduced to Australian continent to reduce the population of native animals.


The speaker argues that the first measure, building a national fence, would not avoid eggs laid by young toads drifting from one side of the fence to another in streams. However, the reading passage advocates that a national fence would effectively prevent the expansion of population of toads.


Regarding to the second measure, the speaker worries that untrained volunteer （-s 这里应该是复数吧）would hurt endangered native frogs by chance because it is difficult to distinguish between cane toads and native frogs. On the contradiction（可能是平时看文章少，没见过 只用过on the contrary）, the reading passage gives the opposite viewpoint. If citizens were called on to become volunteers of devastation campaign, the spread of toads can easily be controlled. （这里是虚拟语气吗，很好啊，不过是不是用could 会好一点）


Finally, the speaker thinks that using an infectious virus put forward by reading passage is not a good way to solve the problem. Owing to the transportation of Australian reptiles and amphibians between Australian and South America is frequently(去掉-ly,应该是adj.), the virus will threaten native cane toads lived in South America. The rapid decrease of native cane toads would break the balance of the ecosystem of South America.

楼主句式的变换很多呢，听力里该有的都有了。只有一个小建议可以把听力里的细节分开说，不用都融在一句里。学习了！