题目终于理解了,可是我觉得有歧义。 理解一: M is among the forecasters who predict that the rate of addition to arable lands will drop while the rate of loss rises. M预言“当rate of loss上升时,rate of addition将会下降” while引导条件状语从句,与"the rate of addition will drop并列” 理解二: M is among the forecasters who predict that the rate of addition to arable lands will drop while the rate of loss rises. M预言,“rate of addition下降”,此时rate of loss正在上升。 while从句是predict的时间状语 读上去理解一比理解二通顺,但是不知道从理论上分析理解二能不能成立 望牛牛指点 |