19．Any kind of pollution will do ________ to our health．（　　）
A．trickB．harmC．strengthD．balance

分析 任何一種的污染對我們的健康都會有害．

解答 答案B．
A項"伎倆，詭計"；C項"力氣；優(yōu)勢"；D項"平衡"；固定短語"do harm to  對…有害"，根據(jù)句意"任何一種的污染對我們的健康都會有害"可知，B項符合語境，故選B．

點評 本題考查名詞辨析．解答此類題目首先要讀懂句意，理解每個選項名詞的意思，然后根據(jù)上下文語境鎖定合適的名詞．平時要加強名詞詞匯量的積累．

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