单选题 Hill slopes were cleared of forests to make way for crops, which now only______the crisis.

【正确答案】 A

【答案解析】解析：动词词义辨析。句中前半句提及为种庄稼而清理掉山坡上的树木(make way for crops)，后半句提及crisis(危机)，语境应该是：此举动会对危机产生什么影响。根据常识，树木被砍伐的后果是加重环境危机。故A选项accelerate(加剧)符合句意，答案为A。