《英语倍数表达法》PPT课件

• 这条路的长度是三年前的 4 倍。
• The price of the meat is twice what it was last year.
• 肉价是去年的两倍。
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• 7. “… times + up on （或 over ）…”例如：
• The size of the sun is a million times over that of the earth.
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二、用分数、百分数表示倍数
• The box is one-third bigger than that one. • 这个盒子比那个盒子大三分之一。
• Last year the output value of industry was 59 percent higher than that of 1976.
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2. Paper produced every year is ___B____ the world's production of vehicles.
A. the three weight of B. three times the weight of C. as three times heavy as D. three times as heavier as
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• 5. “… times +as many （或 much ）＋名 词＋ as …”例如：
• We've produced twice as much cotton this year as （ we did ） ten years ago.
• 今年我们生产的棉花比十年前多了一倍。 （汉语中的多一倍实际上也指两倍一样 多。）
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3.“A + be + 倍数 + the + 计量名词 + of + B ”
• The newly broadened square is four times the size of the previous one. 新扩建的广场是未扩建时的四倍大。
• This hill is four times the height of that small one 这座山的高度是那座小山的四倍。（比那 座小山高三倍）
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2. “A + be + 倍数 + 计量形容词比较级 + than +B”
• The Yangtze River is almost twice longer than the Pearl River. 长江差不多比珠江长两倍。
• The dictionary is exactly five times more expensive than that one. 这本字典比那本恰好贵5倍。
• The output of grain increased fourfold. • 粮食产量增加了三倍。
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exercises
1. Americans eat ___D_____ vegetable per person today as they did in 1910.
A. more than twice B. as twice as many C. twice as many as D. twice as much
• He has got three times as many books as his sister.
• 他拥有的书的数量是他妹妹的 3 倍。
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• 6. “… times + what 从句”例如：
• The length of the road is four times what it was three years ago.
• 太阳的体积比地球的体积大一百万倍。
• He is three times up on your age. • 他的年龄是你的 4 倍（或：比你的年龄大 3
倍）。
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• 8. “… +by + … times ”例如： • Compared with last year， our coal output
• My Aunt is as old again as I am. • 我姑姑的年龄比我大一倍。
• The top-brand clothes are often sold as double the normal price here.
• 这里名牌衣服的售价经常比正常的售价高一倍。
• The new work procedure tripled the output. • 新工艺使产量增加两倍。
英语倍数表达法
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一、用 times 表示倍数 1. “A + be + 倍数 + as + 计量形容词原级 +
as + B”。
• This tree is three times as tall as that one. 这棵树是那棵树的三倍高。
• His father is twice as old as he. 他父亲的年纪有他两倍大。
• 去年工业产值比 1976 年增长了 59 ％。
• My command of English is not half so good as yours.
• 我英语掌握得还不及你的一半儿好。
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三、用 again （一倍）， double （两倍）， triple （三倍），
fourfold （四倍）等词表示倍数。
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4.“The + 计量名词 + of + A + be + 倍数 + that + of + B ”
• The size of the newly broadened square is four times that of the previous one. 新扩建的广场为以前的四倍大。
The height of this hill is four times that of t hat small one．
has increased by three times. • 与去年相比，我们的煤产量增长了 3 倍。
• His speed is faster than mine by four times. • 他的速度比我的快 4 倍。
• Compared with last year, our coal output has increased by three times.