2011 高考英语备考(考点聚焦+名题导解) 数 词一、考点聚焦1、序号表示法(1)单纯的序号,可在基数词前加 number,简写为 No.。如:No.1 第一号(2)事物名词的序号表达法有什所不同:① 对于一些小序号可有序数词也可用基数词表达,形式分别为:the +序数词 + 名词;名词 + 基数词。如:第一次世界大战可以表示为 the First World War或 World War One。② 对于一些大序号我们通常只用一种表达法,即名词 + 数词。如:501 号房间表示为Room 501, 538 路公共汽车表示为 Bus 538。③ 可用 a / the + number + 基数词 + 名词。如:a No.5 bus 一辆五路公共汽车,the No.8 bus 那辆 8 路公共汽车。2、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(原级)+ as 结构之前。如: They have three times as many cows as we do.(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。如: This rope is four times longer than that one.They p roduced more products in 2001 than those in 2000 by twice.(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。如:This room is three times the size of that one.The college is twice what it was 5 years age.You can’t imagine that rats eat 40 to 50 times their weight.3、大约数的表示方法 (1)用 ten、dozen、score、hundred、thousand、million 等数词的复数后加 of 短语来表示几十、几百、上千、成千上万等大约数概念。如:The little boy buys dozens of pencils every term.Thousands of people died in the earthquake. Every year tens of thousands of people go to work in Guangdong Province.(2)用、less than、under、below、almost、nearly、up to 等来表示小于或接近某数目。如:He is good at English, so he can finish the paper in less than two hours.(3)用 more than、over、above、beyond、or more 等来表示超过或多于某个数目。如:Peking University has a history of more than 100 years....