问题
选择题
－Why are there a lot of dead fish in the river?
－Because they were ______ by the polluted water.
A．caught
B．poisoned
C．burned
D．protected
答案
答案：B
考查情景交际。“河里为什么有很多死鱼？”“因为它们是被污水毒死的。”catch“捉到”；poison“毒害”；burn“烧死”；protect“保护”。根据句意可知，选B。