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    精英家教网 > 高中英语 > 题目详情
    16．The reptiles produced young generally by laying eggs．

    分析 爬行动物通过下蛋来产仔．

    解答 laying；lay是一个动词，意为"产卵"，从前面produce young可推知，这里要表达下蛋（lay egg），by是介词，后面应该加动词ing形式，故填laying．

    点评 考查动词的词义，在熟记单词词义的基础上还要联系语境，从而写出正确答案，写动词时还要注意其人称、时态和语态的变化．

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