Chemical pollution will bring about a threat to agriculture and food chain, and

to human health.

A. frequently B. significantly

C. steadily D. consequently

 

D

【解析】

試題分析：考查副詞。A. frequently頻繁地；B. significantly意味深長地；C. steadily穩(wěn)定地；D. consequently因此。句意：化學污染將給農(nóng)業(yè)和食物鏈帶來威脅，因此也會對人類健康帶來威脅。故D正確。

考點：考查副詞

 

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