and treatment of AIDS is_________________(我们可以合作的领域). [2007.6]

[分析] 本题主要考查定语从句的用法。关系副词选择用where或 in which均可。

[答案] the field (where) we can cooperate; the field in which we can

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cooperate; one field of our cooperation

[例24] I am going to pursue this course,________________(无论我要作出什么样的牺牲).[2007.12]

[分析] 考查“no matter+wh-疑问词”或“wh-疑问词+ever”引导的让步状语从句。若“wh-疑问词+ever”引导名词从句，则不可用“no

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