food is hard to find, few birds remain throughout the year.
A．AlthoughB．WhereC．UnlessD．When
B

試題分析：考查從句，從句food is hard to find不缺少成份，所以只能在關(guān)系副詞里選擇，Where 表示地點(diǎn)，When表示時(shí)間，句子意思“那里的食物很難找到，一年到頭很少的鳥(niǎo)停留”，所以選B
點(diǎn)評(píng)：做從句題時(shí)，首先看從句是否缺少成份，如果缺少成份，引導(dǎo)此前就在關(guān)系代詞里選擇，關(guān)系代詞既可以做成份又可以起連接作用；如果不缺少成份，引導(dǎo)詞就在關(guān)系副詞里選擇，關(guān)系副詞之起連接作用
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