20．Issues about the health of our planet are____ important to be treated lightly．（　�。�
A．too muchB．more thanC．far tooD．even more

分析 有關我們星球的健康問題及其重要，不能再輕視了．

解答 答案：C、
句意表達的是肯定；too much修飾名詞，more than不僅僅，far too及其，非常，even more更，愈加；句中to be treated lightly要和too搭配，表示不能被輕視．故選C．

點評 副詞辨析是�？嫉闹R點，副詞數(shù)量眾多，用法靈活．學習時，要注意積累．特別是相似或相近的詞要注意區(qū)分和掌握．

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