Question

畫出作定語修飾名詞的分詞短語

The river polluted by the chemicals from the factory has been a cause of disease in this city．

Answer 1

答案：
解析：

本句的主干是The river has been a cause of disease in this city．這條河已經成為這個城市疾病發(fā)生的一個原因。polluted by the chemicals from the factory是用來修飾the river，指明是哪一條河，由于pollute和river之間是被動關系，因此用的是過去分詞短語。