精英家教網 > 高中英語 > 題目詳情
_____ is necessary for us to tell him about the result.
A．ThatB．ThisC．ItD．What
C

試題分析：考查it用法。本題的It是形式主語，真正的主語是后面的不定式to tell him about the result.句意：對我們來說，告訴他結果是必要的。故C正確。
點評：在英語中it可以指時間，地點，度量衡等，也可以做形式主語，形式賓語，或者引導強調句型。也可以指代前面提及的同一個人或者事情。要特別模糊it的用法。
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