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As a rough estimate, Nigeria is _______ Great Britain.
A.three times the sizes asB.the size three times of
C.three times as the size ofD.three times the size of
D

试题分析:考察倍数表达法。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”。这四种方式指都把倍数放在了最前面,本题考察的是第三种。句意:粗略估计,尼日利亚是英国的3倍大。故D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+形容词或副词比较级+than+B”,表示“A比B大(长、高、宽等)多少倍”
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”。如:
The production is now three times what it was ten years ago. 现在的产量比十年前增加了两倍。
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