高中英语语法大全第12章数词.xls

第 1 页 共 4 页 8 点击朗诵外语 需要启用宏后才能使用朗诵功能 启用方法 先启用编辑 然后启用宏内容 2003版启用方法如下 工具 宏 安全性 低或中 重启文档 启用宏 不会启用宏 点击查看帮助 高中英语语法大全第12章 数词一 概念 数词分两类 基数词和序数词 表示数目的词叫基数词 表示须序的词叫序数词 二 相关知识点精讲1 基数词 1 基数词一般可写成如345或three hundred and forty five 2 基数词一般是单数形式 但遇下列情况 常用复数 a 与of 短语连用 表示概数 不能与具体数目连用 如scores of people 指许多人 b 在一些表示 一排 或 一组 的词组里 例如 They arrived in twos and threes 他们三三两两的到了 c 表示 几十岁 d 表示 年代 用 in the 数词复数 e 在乘法运算的一种表示法里 如Three fives is are fifteen 2 序数词 序数词的缩写形式如first 1st second 2nd thirty first 31st等 3 数词的用法 1 倍数表示法 a 主语 谓语 倍数 或分数 as adj as 例如 I have three times as many as you 我有你三倍那么多 b 主语 谓语 倍数 分数 the size amount length of 例如 The earth is 49 times the size of the moon 地球是月球的49倍 c 主语 谓语 倍数 分数 形容词 副词 比较级 than 例如 The grain output is 8 percent higher this year than that of last year 今年比去年粮食产量增加8 d 还可以用by 倍数 表示增加多少倍 例如 The production of grain has been increased by four times this year 今年粮食产量增加了4倍 2 分数表示法的构成 基数词代表分子 序数词代表分母 分子大于1时 分子的序数词用单数 分母序数词用复数 例如 1 3 one third 3 37 three and three sevenths 三 巩固练习 1 martyrs have heroically laid down their lives for the people a Thousand upon thousand of b Thousand and thousands ofc Thousands upon thousands of d Thousand and thousand of2 They received of letters about their TV programs a dozen b dozen and dozen c score d dozens3 Who is that man in the front row a one b the one c first d the first4 We have produced this year as we did in 1993 a as much cotton twice b as twice much cottonc much as twice cotton d twice as much cotton5 The earth is about as the moon a as fifty time big b fifty times as big c as big fifty time d fifty as times big6 The population of many Alaskan cities has in the past three years a more than doubled b more doubled than c much than doubled d much doubled than7 The moon is about in diameter as diameter as the earth a one three as large b one three as large c one third as large d one third as large8 Five hundred yuan a month enough to live on a is b are c is being d has been9 of the buildings were ruined a Three fourth b Three four c Three fourths d Three four10 Consult for questions about earthquakes a the six index b index six c sixth index d index numbering six四 答案CDDDBACACB 第 2 页 共 4 页 高中英语语法大全第12章 数词一 概念 数词分两类 基数词和序数词 表示数目的词叫基数词 表示须序的词叫序数词 二 相关知识点精讲1 基数词 1 基数词一般可写成如345或three hundred and forty five 2 基数词一般是单数形式 但遇下列情况 常用复数 a 与of 短语连用 表示概数 不能与具体数目连用 如scores of people 指许多人 b 在一些表示 一排 或 一组 的词组里 例如 They arrived in twos and threes 他们三三两两的到了 c 表示 几十岁 d 表示 年代 用 in the 数词复数 e 在乘法运算的一种表示法里 如Three fives is are fifteen 2 序数词 序数词的缩写形式如first 1st second 2nd thirty first 31st等 3 数词的用法 1 倍数表示法 a 主语 谓语 倍数 或分数 as adj as 例如 I have three times as many as you 我有你三倍那么多 b 主语 谓语 倍数 分数 the size amount length of 例如 The earth is 49 times the size of the moon 地球是月球的49倍 c 主语 谓语 倍数 分数 形容词 副词 比较级 than 例如 The grain output is 8 percent higher this year than that of last year 今年比去年粮食产量增加8 d 还可以用by 倍数 表示增加多少倍 例如 The production of grain has been increased by four times this year 今年粮食产量增加了4倍 2 分数表示法的构成 基数词代表分子 序数词代表分母 分子大于1时 分子的序数词用单数 分母序数词用复数 例如 1 3 one third 3 37 three and three sevenths 三 巩固练习 1 martyrs have heroically laid down their lives for the people a Thousand upon thousand of b Thousand and thousands ofc Thousands upon thousands of d Thousand and thousand of2 They received of letters about their TV programs a dozen b dozen and dozen c score d dozens3 Who is that man in the front row a one b the one c first d the first4 We have produced this year as we did in 1993 a as much cotton twice b as twice much cottonc much as twice cotton d twice as much cotton5 The earth is about as the moon a as fifty time big b fifty times as big c as big fifty time d fifty as times big6 The population of many Alaskan cities has in the past three years a more than doubled b more doubled than c much than doubled d much doubled than7 The moon is about in diameter as diameter as the earth a one three as large b one three as large c one third as large d one third as large8 Five hundred yuan a month enough to live on a is b are c is being d has been9 of th