[高中]全新语法:数词的用法 五、特殊数词的用法
教程:高中英语语法大全  浏览:1462  
  • 提示:点击文章中的单词,就可以看到词义解释

    五、特殊数词的用法

    1.dozen

    (1)意为“12个,1打”,前有基数词时不用复数,可以省略of。

    two dozen (of)eggs 两打鸡蛋   two dozen pencils 两打铅笔

    dozens of eggs 几打鸡蛋      a dozen pieces 很多片

    several dozen socks 几打袜子

    (2)在人称代词、指示代词、物主代词前,of不可省。

    a dozen of them 他们中十二个

    two dozen of these books 这些书中的两打

    a dozen of your eggs 你的一打鸡蛋

    (3)泛指时dozens后的of不可省。

    many/several/a few dozens of 数打

    dozens of people 几十个人

    2.score

    (1)意为“20个”,前有基数词时不用复数,一般不省略of。

    three score of eggs 六十只鸡蛋

    several scores of ships 好几十条船

    a score of times 许多次

    a score of them 他们中的二十个

    two score of these books 这些书中的四十本

    (2)泛指时用复数

    scores and scores of people 许多人

    3.“大约数”的表达

    (1)大于某数的表示法:用more than,over,or more

    more than/over fifty people 五十多个人

    children of fourteen and over 十四岁和十四岁以上的少年

    sixty students or more 六十或六十多个学生

    (2)小于某数的表示:用less than,under,almost,nearly,below

    It cost me less than 10 pounds.我买它花了不到10英镑。

    Children under six years old are admitted free.未满6岁的儿童可免费入场。

    It’s nearly/almost 10 o’clock.快10点了。

    The temperature is five degrees below zero.温度是零下5度。

    (3)其他表示:用or,or so,about,around,round,some,more or less

    I’ll come back in three or four days.我过三四天就回来。

    We stayed an hour or so.我们停留了一个小时左右。

    It will cost around/round/about 100 dollars.那大概要花100美元。

    Some 100 people attended the meeting.大约100人参加了会议。

    I read more or less forty pages last night.我昨晚看了大约40页。

    【提示】 “一两分钟”通常用a minute or two或one or two minutes。

    【高考演练】

    1.【浙江】I like this jacket better than that one,but it costs almost three times________.

    A.as much B.as many C.so much D.so many

    【答案】A 倍数表达方式之一就是“倍数+as ...as结构”。此句中第二个as和后面的内容都省略了。补充完整应该是...as much as that one。“钱多”概念应该用much。故选A。

    2.【北京】She went to the bookstore and bought________.

    A.dozen booksB.dozens books

    C.dozen of booksD.dozens of books

    【答案】D 句意:她到书店买了数十本书。表示约数时用“数词的复数形式+of”结构。

    3.【浙江】The company had about 20 notebook computers but only one-third________used regularly.Now we have 60 working all day long.

    A.is B.are C.was D.were

    【答案】D 句意:这个公司过去有二十台笔记本电脑,但只有1/3能正常使用。现在我们有六十台可以使用。由but前的分句中had判断知句子应用一般过去时。分数(1/3)作主语时谓语动词根据分数所代表的名词而定;句中的1/3代指computers,故谓语动词用复数。故选D。

    4.【上海】________ of the land in that district________covered with trees and grass.

    A.Two fifth;isB.Two fifth;are

    C.Two fifths;isD.Two fifths;are

    【答案】C 句意:那个地区五分之二的土地都覆盖着草地和树木。分数的分子用基数词,分母用序数词表示。如果分子大于1,序数词后加-s。分数和百分数做主语时,谓语动词的形式取决于分数和百分数后的名词。句子中的主语land是单数,所以谓语动词要用is covered.故选C。

    5.【湖北】What a table! I’ve never seen such a thing before.It is________it is long.

    A.half not as wide asB.wide not as half as

    C.not half as wide asD.as wide as not half

    【答案】C 倍数的表达方式之一:A+is+倍数+as+adj.+as+B,意为“A是B的……倍”。故选C。

    6.【上海】At a rough estimate,Nigeria is________Great Britain.

    A.three times the size asB.the size three times of

    C.three times as the size ofD.three times the size of

    【答案】D 句意:据粗略估算,尼日利亚是英国的三倍大。A is ...time the size of B.A是B的……倍大。故选D。

    7.【辽宁】The factory produces half a million pairs of shoes every year,80%________are sold abroad.

    A.of which B.which of C.of them D.of that

    【答案】A 句意:这家工厂每年生产50万双鞋,其中80%销往国外。80% of which指的是80% of the shoes,其中80%是百分数,作定语从句的主语。故选A。

    0/0
      上一篇:[高中]全新语法:数词的用法 四、时间的表达 下一篇:[高中]全新语法:形容词的分类 一、表语形容词

      本周热门

      受欢迎的教程

      下载听力课堂手机客户端
      随时随地练听力!(可离线学英语)