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1、考向2 倍数表达法表示倍数的句型：(1)A is倍数比较级thanB(2)A is倍数as原级asB(3)A is倍数the名词(size，length，height 等)ofB(4)A is倍数thatofB(5)A is倍数what 引导的名词性从句This building is three times higher than that one. This building is three times as high as that one. This building is three times the height of that one. 这个建筑物是那个建筑物的3倍高。 Th
2、e output of this year is 3 times that of 2008. The output of this year is 3 times what it was in 2008. 今年的产量是2008年的三倍。After the new technique was introduced，the factory produced twice as many cars in 2008 as the year before. 自从新技术被引进以后，这家工厂2008年生产的小汽车是上一年的两倍。经典例题 When you study the local map，youll f
3、ind this town is_.A. twice the size of that oneB. twice as a large town as thatC. twice as larger as that oneD. twice as larger a town as that【答案】A【解析】句意：当你研究当地的地图时，你会发现这座城镇是那个的两倍大。倍数的表达方式：A is 倍数the名词(如size/length)of B；B项中不定冠词位置错误；C、D项中as后应用形容词原级。Peters jacket looked just the same as Jacks，but it c
4、ost_his.A.as much twice as B. twice as much asC. much as twice as D.as twice much as【答案】B【解析】倍数表达法是形容词比较等级中一种很常用的比较级结构。不管用哪种比较级结构来表示比较，表示倍数的词总是放在比较级结构的最前面。My uncles house in the downtown area is much smaller than ours，but it is twice_expensive.A.as B. soC. too D. very【答案】A【解析】 考查倍数表达法。这里的倍数是twice，由expensive这一原级可知，这里使用了as.as.这一比较结构，在具体的语境中，后面的一个as以及后面的成分可以承前省略，即这里expensive后面省略了as ours。