18．I had intended to help them out of trouble，but ___ I made it worse．（　�。�
A．similarlyB．unfortunatelyC．frequentlyD．naturally

分析 我本打算幫助他擺脫困難，但不幸的是我使得情況更加糟糕．

解答 答案是B．本題考查副詞詞義辨析．similarly 相似地； unfortunately  不幸地； frequently  頻繁地； naturally 自然地；由下文"made it worse使得情況更糟"可知是"不幸"，所以答案選擇B．

點評 辨析副詞要在識記常見副詞及其搭配的基礎(chǔ)上理解語境，根據(jù)具體語境推斷合理的答案．

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