A new laptop costs about _____ of a second-hand one.

A.the price of three timesB.three times the price
C.a(chǎn)s much as the three times priceD.three times more than the price

B

解析試題分析:考查倍數(shù)被動法。倍數(shù)表達有四種:1. “A+倍數(shù)+形容詞或副詞的比較級+than+B”, 2.“A+倍數(shù)+as+形容詞或副詞的原級+as+B”, 3. “A+倍數(shù)+the size/height/length/width, etc+of+B”, 4. “……times+what+從句”。本題使用的是第3種。句意:新的電腦要花的錢是二手電腦的三倍。故B正確。
考點:考查倍數(shù)表達法
點評:倍數(shù)表達要牢記,倍數(shù)表達法是高中英語教學的重點,也是歷屆高考的熱點。當我們要表達甲是乙的幾倍時,通常用句型來表示:
1. “A+倍數(shù)+形容詞或副詞的比較級+than+B”,表示“A比B大(長、高、寬等)多少倍”。如:
 This rope is twice longer than that one. 這根繩子是那根繩子的兩倍長(比那根繩子長一倍)。
2.“A+倍數(shù)+as+形容詞或副詞的原級+as+B”,表示“A正好是B的多少倍”。如:
 Asia is four times as large as Europe. 亞洲的面積是歐洲的四倍。
3. “A+倍數(shù)+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. 這條街是那條街的四倍長。
4. “……times+what+從句”。如:
 The production is now three times what it was ten years ago. 現(xiàn)在的產(chǎn)量比十年前增加了兩倍。

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