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    精英家教网 > 高中英语 > 题目详情
    6．A new iPhone costs about _______ of a second-hand one．（　　）
    A．the price of three times
    B．three times the price
    C．as much as the three times price
    D．three times more than the price

    分析 在市场上一个新的iPhone的价格是一个二手的价格的三倍．

    解答 答案：B
    考查倍数被动法．倍数表达有四种：1．"A+倍数+形容词或副词的比较级+than+B"，2．"A+倍数+as+形容词或副词的原级+as+B"，3．"A+倍数+the size/height/length/width，etc+of+B"，4．"…times+what+从句"．本题使用的是第3种，故B正确．

    点评 倍数表达要牢记，倍数表达法是高中英语教学的重点，也是历届高考的热点．当我们要表达甲是乙的几倍时，通常用句型来表示：
    1．"A+倍数+形容词或副词的比较级+than+B"，表示"A比B大（长、高、宽等）多少倍"．如：
    　This rope is twice longer than that one．这根绳子是那根绳子的两倍长（比那根绳子长一倍）．
    2．"A+倍数+as+形容词或副词的原级+as+B"，表示"A正好是B的多少倍"．如：
    　Asia is four times as large as Europe．亚洲的面积是欧洲的四倍．
    3．"A+倍数+the size/height/length/width，etc+of+B"，表示"A正好是B的多少倍"．如：
    This street is four times the length of that one．这条街是那条街的四倍长．
    4．"…times+what+从句"．

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