12．People in many parts of the world are ______ for water，and more people will need more water in the next century．（　�。�
A．desperateB．primeC．user-friendlyD．explicit

分析 世界上許多地方的人們都極度渴望水，而且下個(gè)世紀(jì)更多的人將需要更多的水．

解答 答案是A．考查詞組be desperate for 對…極度渴望．A 極度渴望的；B 基本的；C 人性化的，容易使用的；D 清楚的．句意是：世界上許多地方的人們都極度渴望水，而且下個(gè)世紀(jì)更多的人將需要更多的水．故選A．

點(diǎn)評 解答此類問題首先需要理解每個(gè)單詞的基本含義，并注意交叉含義間的區(qū)別，了解其特殊用法及習(xí)慣搭配等特點(diǎn)，然后結(jié)合語境選擇正確答案．

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