全新版大学英语第二版综合教程2课后练习答案

2.

This village was once famous for its beautiful natural surroundings. All the year round, the trees were green and the flowers in bloom. Clear streams flowed out of the hills through a checkerboard of rice fields. Birds sang all day, and deer came and went in a leisurely manner. However, with the coming of DDT and other pesticides, an evil spell seemed to have settled over the village. Misfortunes came one after another. Chicken died suddenly, cattle and sheep were stricken by mysterious maladies, and farmers complained about a sickening feeling that puzzled the village doctor. The village square, once throbbing with life, was now deserted.