英语听力：2012-02-08 从南极到北极 From Pole To Pole—10

 The character of the forest changes as we descend¹, becoming ever darker and damper, favoring different kinds of animals and plants. Less than two percent of the sunlight reaches the floor. But even here there is extraordinary variety. In the Great Island of New Guinea, there are forty two different species of birds of paradise, each more bizarre than the last. 

 

This forest is so rich that nourishing food can be gathered very quickly. That leaves the male six-plumed bird of paradise with time to concentrate on other matters like tidying up his display area. Everything must be spick and span. All is ready

 

Very impressive, but no one is watching. The superb bird of paradise calls to attract the female. And he has more luck. But what does he have to do to really impress her?

1 descend   

vt./vi.传下来，下来，下降

参考例句：

• I hope the grace of God would descend on me.我期望上帝的恩惠。
• We're not going to descend to such methods.我们不会沦落到使用这种手段。