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 當(dāng)遭受危險和沖突時，男人往往會血壓上升，感到焦慮和緊張．

解答 答案是B．本題考查分詞做狀語．題干中逗號中間有謂語動詞tend，是完整的句中，所以expose和feel都必須以非謂語的形式出現(xiàn)，都是分詞做狀語．分詞做狀語時分詞的選擇是看分詞和句子主語之間的關(guān)系：分詞和句子主語之間是主謂關(guān)系（主動關(guān)系），用現(xiàn)在分詞；分詞和句子主語之間是動賓關(guān)系（被動關(guān)系），用過去分詞；第一空中運(yùn)用了短語be exposed to 暴露，遭遇；英語中很多類似的"be+過去分詞+to do/介詞/從句"的結(jié)構(gòu)往往表示邏輯主語的狀態(tài)，只需要去掉be動詞，用過去分詞短語做狀語、定語或補(bǔ)語，由此判斷第一空用過去分詞，排除C和D；第二空feel和句子主語men之間是主動關(guān)系，所以選用現(xiàn)在分詞，答案選擇B．

點(diǎn)評 在非謂語動詞的解題中要在掌握其基本用法的基礎(chǔ)上關(guān)注并積累一些固定用法，結(jié)合具體語境做出合理的判斷．

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