要保护野生犀牛，用下面三种方法
1、把牛角给卸了，这样猎人就不高兴去杀犀牛了
2、教育消费者，告诉他们犀牛角药用是不科学的。可以改用其他的东西代替犀牛角
3、政府来合法卖牛角，如果政府卖低价，非法商人就没利润了。
听力：
1、把所有牛角都卸了本身就不可能，另外对犀牛也没好处。
2、人民对牛角的需求是有传统的，他们相信牛角牛逼。
3、人们认为买牛角是合法的，所以更多人去买了，这样牛就要大放血了
None of the three measures proposed in the reading can effectively decease the hunting of wild rhinoceroses.
Firstly, from the perspective of removal of their horns, the professor states his doubt, because according to the lecture, to remove horns of all the rhinoceroses is impossible, let alone the harm to their physical health caused by the action.
Moreover, judging from the effect of education, the professor holds a different view, as the lecture further illustrates that the customers have been long convinced of the pharmaceutical value of the horns, no matter how much the government claims the equal effect of substitute, such as ox horn.
Last but not least, on the point of legalization of the horn trade, the professor never fails to express his concern, because in terms of the listening, once the government legalize the trade of rhinoceroses’ horns, the public will consider the government encourages the trade, and the sales will increase. Therefore, the rhinoceroses still suffer. (160 words)
