【題目】Your eyesight may become poorer ________ you still spend much time on computer games.

A.unlessB.thoughC.whileD.if

【答案】D

【解析】

句意:如果你仍然花費太多的時間在電腦游戲上,你的視力可能會變得更差。

考查從屬連詞辨析。unless除非;though盡管;while在……期間;if如果。結(jié)合空前后句意可知此句是條件狀語從句,用if引導,表示如果。故選D。

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