18．We are volunteers that do，and will always，meet our______ to the world and particularly to those who so desperately need our support．（　�。�
A．requirementsB．objectionsC．commitmentsD．threats

分析 我們做出承諾并且總是會履行我們對世界的承諾的志愿者，特別是對那些迫切需要我們支持的人們的承諾．

解答 答案是C．
本題考查名詞詞義辨析．A項表示"要求，需要"；B項表示"反對"；C項表示"承諾，致力，奉獻"；D項表示"威脅"；meet our commitment to the world"履行我們對世界的承諾"，所以答案選擇C項，其它選項不符合邏輯．

點評 本題考查名詞詞義辨析，考生在平時的學習中應(yīng)注意積累相應(yīng)的詞匯和搭配，并牢記其意思．在做題時，將詞義和題干相結(jié)合，從語法、句子結(jié)構(gòu)尤其是句意上去判斷，句意通順，符合邏輯，即正確答案．

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