摘要：倍数的表达方式 一般情况下我们用以下三种倍数表达方式: ①倍数用在as+形容词/副词+名词+ as结构之前 They have three times as many cows as we do. 他们拥有的奶牛是我们的三倍多. ②倍数放在形容词或副词的比较级之前或by + 倍数用在比较级之后 This rope is four times longer than that one. They produced more products in 2009 than those in 2008 by twice. 2009年的产品是2008年的两倍 ③倍数用在表示度量名词前.其基本结构为:倍数 + the + size / length / weight -+ of + 表示比较对象的名词.也可用于倍数 + what引导的从句中 This room is three times the size of that one. The college is twice what it was 5 years ago.这个学院是5年前的两倍. You can’t imagine that rats eat 40 to 50 times their weight.
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根据句意，在不改变原句意思的情况下，用另一种形式改写所给的句子。每条横线上不多于5个词。
If you don’t play every week , you won’t improve your tennis．
You won’t improve your tennis unless ________________________________every week．
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根据句意，在不改变原句意思的情况下，用另一种形式改写所给的句子。每条横线上不多于5个词。
It’s too cold to play tennis．
It isn't warm ________________________________to play tennis．
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根据句意，在不改变原句意思的情况下，用另一种形式改写所给的句子。每条横线上不多于5个词。
There are only a few squash courts in this town．
There aren't very ________________________________squash courts in this town．
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