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    10．Global warming ______ to result in a rise of two feet in sea levels by the second half of next century．（　　）
    A．is expectedB．is expectingC．expectsD．has expected

    分析 据预测，到下一世纪的下半世纪，全球变暖会导致海平面上涨两英尺．

    解答 答案选择A．本题考查固定句型．根据句意判断，"global warming"和"expect（预测）"之间是被动关系；本题考查句式：sb．/sth．be expected to do"据预测"，故答案选择A．

    点评 本题考查被动语态，要分析主语和动词之间的关系，联系动词本身的特定用法；在掌握被动结构的基本形式"be/get+过去分词"的基础上理解不同时态的被动语态的结构，最后进行综合判断．

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