People living in the desert choose to keep their ancient lifestyles and customs, _______people in cities throw away their cultural traditions.

A．whenB．ifC．unlessD．while

D

解析試題分析：考查連詞辨析。A當…時；B如果；C除非，如果…不…;D當…時；然而；句意：生活在偏遠地區(qū)的人們選擇保存古代的生活方式和風俗。而生活在城市里的人把文化上的傳統(tǒng)都拋棄了。根據(jù)句意說明本句的while表示的是輕微的轉折。故D正確。
考點：考查連詞辨析
點評：連詞要注意一些連詞的一詞多義的現(xiàn)象。要放在上下文的語境中進行，要注意上下文的語義的串聯(lián)以及邏輯關系的推理，特別要注意一些連詞和時間狀語的固定搭配。

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