寄托天下
查看: 9810|回复: 0
打印 上一主题 下一主题

[作文] 【每天更新】Official 15 Task 1求改求指点 [复制链接]

Rank: 3Rank: 3

声望
50
寄托币
263
注册时间
2015-2-17
精华
0
帖子
55
跳转到指定楼层
楼主
发表于 2018-4-16 16:29:03 |只看该作者 |倒序浏览
The reading proposed three measures to prevent the small native animals in Australia from the threat of the cane toad. However, the lecture argues that they are not good measures.
Firstly, the reading states that a national fence could stop the spread of the cane toad by isolating cane toad from the places where they do not appear. However, the lecture says that since the young cane toad and eggs are in the water, they could be carried by the stream, go through the national fence to the new places. Therefore, the national fence can not prevent places from the intrusion of the cane toad.
Secondly, the reading states that volunteers could capture and annihilate the toads, since the cane toads are easily captured by traps and hands. Nevertheless, the lecture argues that the untrained volunteers could also unavoidably destroy the native frogs. Especially, for the untrained volunteers, the young frogs are hard to be distinguished from the young toads. Therefore, the idea that organizing volunteers is not a good choice.
Thirdly, the reading proposes that the designed virus could be used to control the cane toad population, without harming other contagious toads. However, the lecture disagrees and presents that the toad is an important species in other regions, like America. Since the toad could transport to new continents by the carry of the biological experts, it would cause a cataclysm to the ecology system in America. therefore, virus should not be developed for the cane toad.
回应
0

使用道具 举报

RE: 【每天更新】Official 15 Task 1求改求指点 [修改]
您需要登录后才可以回帖 登录 | 立即注册

问答
Offer
投票
面经
最新
精华
转发
转发该帖子
【每天更新】Official 15 Task 1求改求指点
https://bbs.gter.net/thread-2162830-1-1.html
复制链接
发送
报offer 祈福 爆照
回顶部