【題目】The environment will be much worse ___________ everyone has a sense of protecting it.

A. unlessB. ifC. so that

【答案】A

【解析】

句意:除非每個人都有保護(hù)環(huán)境的意識,否則環(huán)境會更糟?疾檫B詞辨析。unless除非,表?xiàng)l件,相當(dāng)于if not;if如果,表?xiàng)l件;so that以便于,表目的。本句是條件狀語從句,根據(jù)句意語境,可知if不合句意,故選A

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