Section A
未来几十年,美国——其实是整个世界——将要面临的最紧迫的挑战之一就是如何缓解人类的活动给环境造成的日益严重的压力。实际上,这种结果太重要了,因此不容忽视。由于新的发展占据了更多的土地。野生动植物的栖息地正在缩减,或者正在完全消失。植物和动物的物种正在灭绝,灭绝的速度比地球历史上任何时候的速度都快。世界多达30%的渔业资源被过度捕捞。很明显,被过度捕捞的资源还在继续增加。
If you intend using humor in your talk to make people smile, you must know how to identify shared experiences and problems. Your humor must be relevant to the audience and should help to show them that you are one of them or that you understand their situation and are in sympathy with their point of view. Depending on whom you are addressing, the problems will be different.
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