题目内容

3．When ____ to danger and conflict，men tend to increase blood pressure，______ nervous and  anxious．（　　）
A．exposed； feltB．exposed； feeling
C．exposing； feelingD．exposing； felt

分析 当遭受危险和冲突时，男人往往会血压上升，感到焦虑和紧张．

解答 答案是B．本题考查分词做状语．题干中逗号中间有谓语动词tend，是完整的句中，所以expose和feel都必须以非谓语的形式出现，都是分词做状语．分词做状语时分词的选择是看分词和句子主语之间的关系：分词和句子主语之间是主谓关系（主动关系），用现在分词；分词和句子主语之间是动宾关系（被动关系），用过去分词；第一空中运用了短语be exposed to 暴露，遭遇；英语中很多类似的"be+过去分词+to do/介词/从句"的结构往往表示逻辑主语的状态，只需要去掉be动词，用过去分词短语做状语、定语或补语，由此判断第一空用过去分词，排除C和D；第二空feel和句子主语men之间是主动关系，所以选用现在分词，答案选择B．

点评 在非谓语动词的解题中要在掌握其基本用法的基础上关注并积累一些固定用法，结合具体语境做出合理的判断．

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