2015年1月25日托福机经

2015年1月25日托福机经

2015年1月25日托福机经

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eading: large animals’extinction 如mammoth human's overkill lead to extinction:

1. North American 到达这个地方与大型哺乳动物的灭绝是at the same time.

2. 大动物以前没有遇到过predator，他们vulnerable 更有利于移民来的人去kill.

3. 只发现有大动物的死的痕迹，没有发现小动物死的痕迹。

Listening: the speaker totally refused the passage she believe that there is no relationship between the extinction of large mammals in the north America and human hunting, instead she thinks that the extinction was caused by other factors such as climate change

1. the same time between the extinction and human establishment does not necessarily mean human hurting results in the extinction of those animal around 11000 years ago was a global phenomenon, they became extinct even in those places where no people lived.

2. No food preservation skills at that time could all human being to keep meat for a long time, thus, people only killed what they could eat, and therefore it is impossible for human to kill all the large mammals to make them extinct. People always move frequently at that time so they did not kill large animals at one place to make them become extinct.

3. Not only large mammals became extinct at that time, small animals such as some kinds of birds also became extinct at the time.

2015年1月25日托福机经

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