倍数的表达及其巩固练习

倍数表达1.（1）A+be +倍数+the+(长length、宽width、高height、深depth、尺寸size等)的名词+of+BEg: The new building is four times the size of the old one. The new road is three times the width of the old one.2.A+be(或其他动词)+倍数+adj./adv.的比较级+than+BEg: The sun is a million times larger than the earth. This boy runs three times faster than his brother.Dont be frightened by sharks as there is 30 times greater chance of being hit by lightning than being attacked by a shark.3.A+ be(或其他动词)+倍数+as+adj./adv.的原形(+as+B.有时省略)Eg: The car runs three times as fast as I walk. This factory produced three times as many cars this year as last year.4. A+ be(或其他动词)+倍数+that/those of B5. A+ be(或其他动词)+倍数+what-clause.Eg:The worlds population has grown to more than six times what it was in 1800.The industrial output in the factory is more than 30 times what it was in 1970.这家工厂的工业产量是1970年的30多倍。巩固练习1.I really like this apartment much better than the one we saw yesterday, but it costs almost twice_.A. as much B. as many C. so much D. so many2.Ten years ago the population of our village was_ that of theirs.(08陕西卷)A. as twice large as B. twice as large as C. twice as much as D. as twice much as3. Since I am familiar with the work, it takes me_ time to finish a task as before.A. as half much B. as much half C. half as much D. half much as4.I like this jacket better than that one, but it costs almost three times_.(08浙江卷03)A. as much B. as many C. so much D. so many