2017/7/29 10:33:41来源:新航道作者:新航道
摘要:为了帮助各位备考托福同学们更好的熟悉最新托福写作题目内容,今天,上海新航道托福培训学校小编给大家带来了最新托福综合写作范文——海星种群数量为何下降。希望帮助考生对照文本更好的研究真题,充分备考,争取理想成绩,实现留学梦想。
为了帮助各位备考托福同学们更好的熟悉最新托福写作题目内容,今天,上海新航道托福培训学校小编给大家带来了最新托福综合写作范文——海星种群数量为何下降。希望帮助考生对照文本更好的研究真题,充分备考,争取理想成绩,实现留学梦想。
新托福写作综合作文范文:
The reading and listening discuss why sea star population declines. The reading points out three reasons to explain why sea star population declines. Whereas, the professor totally refutes the three points presented in the passage.
Firstly, the professor rebuts the reading’s first point that the parasite attachés itself to sea star, and thus affects star’s health. He points out that this parasite only affects star’s reproductive organ and thus only affects star in its reproductive season. But disease appears during the whole season.
According to the reading material, the bacteria in the shellfish, which is the food of sea star, cause sea star decline. The professor mentions that for most sea stars, they can tolerate bacteria, so this bacterium is harmless to sea star. Therefore, there must be another reason to cause sea star decline.
At last, reading material points out that water temperature rising weakens the sea star’s immune system. However, the professor explains that the water temperature in area where the disease outbreaks is quite moderate. Besides, the disease outbreaks in the area, where the water wave is much calmer than other areas; the reason is still in mystery.
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