问题补充：
The farmers are in bad need of rain,but a (an)large amount of rainfall will cause Floods.
A. Eventually
B. constantly
C. gradually
D. extremely
答案：
A. Eventually
B. constantly
C. gradually
(答案→)D. extremely
解析： 副词词义辨析题。农民需要雨水但是大量的降雨会导致洪灾。A.Eventually结果 B．constantly 连续 C． gradually逐渐 D．extremely 极其根据句意选D
