2017年5月6日托福综合写作考试真题及解析

>>托福真题：2017年5月6日托福综合写作考试真题及解析

综合写作题目：

阅读部分：

美国的一种叫auklet 的海鸟出现了die-off的情况。

1. 可能是由于在发生die-off 之前的夏天，auklet的数量激增，导致对于食物的竞争加强，有些auklet就饿死了。

2. Auklet可能接触sea stars的时候，感染了sea stars病毒，导致Auklet死亡。

3. 海水温度升高，导致zooplankton的质量下降，而Auklet是以zooplankton为食的，所以受到了影响。

听力部分：

以上列举的没有一个能够解释auklet的die-off.

1. 竞争可能会导致一些auklet的数量减少，但是不会导致这么多auklet的死亡，并且食物和auklet之前的平衡没有办法修复。

2. 如果是少了病毒感染的话，那么auklet会带有相应的病毒，但是研究发现，死去的auklet上面并没有病毒存在。

3.其他的一些以zooplankton为食的动物没有发生死亡现象。为什么只有auklet出现了这个情况，这说不通。

综合写作满分范文：

The writer presents three reasons to explain why auklets in America died off. However, the professor demonstrates a different idea that these reasons are all unconvincing.

To question the first reason presented in the passage that auklets might die from starvation because of their large population and the relative little food, the professor points out that the balance between the number of a species and the food availability could actually be balanced. Therefore, even we assume that auklets would need to compete with each other for food because the number of them had increased in the previous summer and some of them didn’t win that competition and died, the food then would be enough for those auklets that had remained alive. In this case, they would not completely die out.

Another important point showed in the reading material is that auklets might be infected by some deadly virus from sea stars. But the professor presents a conflicting idea that scientist didn’t find this kind of virus in auklets’ body. It is strange that they got infected by virus but didn’t had any in their body. The second reason in the reading passage is wrong again.

Finally, the professor states that zooplankton still could not be the reason for auklets’ die-off. Because there are other sea animals that also feed on zooplankton but they are not affected. This challenges the third theory made by the writer who says that the drop of zooplankton’s quality caused the die-off of auklets.(248 words)

最后，坦途网托福考试频道预祝接下来要参加考试的考生能取得令自己满意的成绩。