题目

People should avoid burning wheat stubble (秸秆), for it can______lots of smoke and causes serious air pollution.A. protect B. prevent C. provide D. produce 答案：【答案】D【解析】句意：人们应该避免焚烧秸秆，因为它会产生大量的烟雾，造成严重的空气污染。A.保护B.阻止C.提供D.产生，it指焚烧秸秆这件事，这种行为会“产生”烟雾，导致空气污染，故选D。60168×125．