新托福TPO15综合写作和材料原文

1、新托福TPO15综合写作和材料原文新托福写作TPO15综合写作范文The lecturer argues against the three measures mentioned in the reading passage to reduce the population of the cane toad, a species introduced to the Australian continent.The lecturer argues that the first measure, a national fence, would not prevent the flow of str

2、eams or rivers and, therefore, would allow young toads or toad eggs to travel to the other side of the fence. The reading passage, however, argues that such a fence would effectively cut off the Route that animals use to establish colonies and expand in population.Regarding the second measure, recru

3、iting a large group of volunteers, the lecturer explains that volunteers often have difficulty distinguishing between cane toads and native frogs, an endangered species. Therefore, volunteers might kill members of both species. The Reading passage gives the opposite view. Organizing a large group of

4、 volunteers to join an extermination campaign would speed the destruction of cane toads.Finally the lecturer objects to the third measureusing an infectious virus. She points out that a virus intended to eliminate Australias cane toad population could be transmitted through animal transportation to

5、other continents where cane toads are an essential part of the ecosystem. This is indirect contradiction with the claim in the reading passage that an infectious virus could be developed to stop the reproduction of cane toads without harming other species.新托福写作TPO15综合写作阅读材料：The cane toad is a large

6、(1.8 kg) amphibian species native to Central and South America. It was deliberately introduced to Australia in 1935 with the expectation that it would protect farmers crops by eating harmful insects. Unfortunately, the toad multiplied rapidly, and a large cane toad population now threatens small nat

7、ive animals that are not pest. Several measures have been proposed to stop the spread of the cane toad in Australia.蔗蜍是一种原产于中南美洲的两栖动物，个头很大，重大1.8公斤。蔗蜍是在1935年由人工引进至澳大利亚的。因为它们可以吃害虫，所以希望借由它们保护农作物。不幸的是，蔗蜍繁殖迅速。而且，数量巨大的蔗蜍群体已经开始威胁一些对农业无害的小型本土生物。现在提出了几个解决蔗蜍在澳大利亚蔓延的方法。One way to prevent the spread of the toad

8、 would be to build a national fence. A fence that blocks the advance of the toads will prevent them from moving into those parts of Australia that they have not yet colonized. This approach has been used before: a national fence was erected in the early part of the twentieth century to prevent the s

9、pread of rabbits, another animal species that was introduced in Australia from abroad and had a harmful impact on its native ecosystems.第一个阻止蔗蜍蔓延的方法是建立一个全国范围的围栏。用围栏控制蔗蜍增长的方式是通过阻止它们迁徙实现的，这样它们就不会聚集到那些尚未被它们控制的.地区了。这种方法以前就用过。在二十世界初期，澳大利亚就从用这种围栏阻止兔子的过度增长。兔子由澳大利亚从他国引进后，给当地的生态平衡造成了巨大的灾难。Second, the toads c

10、ould be captured and destroyed by volunteers. Cane toads can easily be caught in simple traps and can even be captured by hand. Young toads and cane toad eggs are even easier to gather and destroy, since they are restricted to the water. If the Australian government were to organize a campaign among

11、 Australian citizens to join forces to destroy the toads, the collective effort might stop the toad from spreading.第二，可以招募志愿者抓蔗蜍。简单的陷阱就可以抓到蔗蜍，甚至徒手都可以抓到。至于蝌蚪和卵因为是生活在水里的，更是容易抓到和消灭。如果澳大利亚政府组织一个由澳大利亚公民参与的运动去消灭蔗蜍，那么可能会达到阻碍其蔓延的目的。Third, researchers are developing a disease-causing virus to control the can

12、e toad populations. This virus will be specially designed: although it will be able to infect a number of reptile and amphibian species, it will not harm most of the infected species; it will specifically harm only the cane toads. The virus will control the population of cane toads by preventing the

13、m from maturing and reproducing.第三，研究人员正在研究一种用于控制蔗蜍数量的致病病毒。这种病毒是专门为控制蔗蜍研制的。尽管这种病毒也可以感染相当多数量的爬行动物和两栖动物，但是这种感染基本是无害的。它只会影响蔗蜍。这种病毒通过阻碍蔗蜍的蔗蜍的成熟和繁殖实现控制其数量的目的。新托福写作TPO15综合写作听力材料：The cane toad wont be as easy to get rid of as the reading suggests. The measures proposed by the reading are likely either to b

14、e unsuccessful or to cause unwanted environmental damage.蔗蜍不会像阅读部分说的那么容易出去的。阅读部分提供的观点不但是不会奏效，甚至会对环境造成损害。First of all, a national fence probably wont stop the spread of the toad. Thats because young toads and toad eggs are found in rivers and streams. No matter where the fence is located, at some poi

15、nt there will be rivers or steams flowing from one side to the other. These waterways will be able to carry the young toads and their eggs to the other side. Since its only necessary for a few young toads or eggs to get though the fence in order to establish population on the other side, the fence i

16、s unlikely to be effective.首先，一个全国范围内的围栏不会阻止蔗蜍的蔓延。这是因为蝌蚪和蔗蜍卵是生活在河水和溪流中的。不管围栏怎么安排，总会有跨过河流和小溪的地方。在这些地方，流水可以越过围栏。蝌蚪和蔗蜍卵可以通过这些水流穿过围栏。只要有很小数量的蝌蚪和蔗蜍穿过围栏，它们就可以建立起一个种群。所以，这种围栏的方法是无效的。Secondly, a massive group of volunteers could have success trapping and destroying toads. But its likely that these untrained

17、 volunteers would inadvertently destroy many of Australias native frogs some of which are endangered. Its not always easy to tell the cane toad apart from native frogs especially when its young.第二，人数众多的志愿者队伍的确可以抓住和消灭蔗蜍。但是这些没有经过训练的志愿者很可能会无意间杀死很多澳大利亚原产的青蛙，而其中的一些已经是濒危物种的。蔗蜍和澳大利亚原产青蛙并不容易区分，尤其是在它们都是幼体的时候

18、。Third, using the virus is a bad idea because it could have terrible consequences for cane toads in their original habitat in Central and South America. You might be wondering how can virus released in Australia cause harm in the Americas. Well, Australian reptiles and amphibians are often transported to other continents by r