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11．樂觀的optimistic．

分析 樂觀的optimistic

解答 答案是optimistic；考查詞義識記；optimistic adj．樂觀的；be optimistic about 對…樂觀的；如：She's not very optimistic about the outcome of the talks．她對會談的結果不太樂觀．

點評 對于單詞短語的識記，要從詞義著手，理解詞性和常見用法或搭配，并能在語境中靈活運用．

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