标题: 中考试题-数词三 [打印本页] 作者: hellokitty 时间: 2012-5-3 09:14 标题: 中考试题-数词三 三、数词的应用
1.时刻的表示:小时、点钟、分钟、秒钟要用基数词
①“几点钟”用基数词加o'clock。o'clock可省略。如: 5点钟—five(o'clock).
②“几点过几分 ”,≤30分钟”用介词past. 如: 7:05—five past seven;7:15—fifteen (a quarter)past seven;7:30—half past seven.
③“差几分几点”用介词“to”。如:7:40—twenty to eight;7:45—fifteen(a quarter to eight.
④日常生活中的时间读法常常简化,直接按基数词的顺序读。如:7:05—seven o five;7:15— seven fifteen.
2.年月日的表示
① 年份用基数词,如:1999年—nineteen ninety-nine; 1900年—nineteen hundred; 2000—two thousand;1905—nineteen o five;
② 年用基数词,日用序数词。如:1998年6月8日 写作:June 8,1998;读作:June the eighth, nineteen ninety-eight或the eighth of June, nineteen ninety-eight.
3. 世纪、年代表示法
(在)90年代 (in) the nineties
(在)19世纪 (in) the nineteenth century
(在)18世纪30年代 (in) 1730s或1730’s
4.编号的表示
① Lesson One =the first lesson第一课;
② Bus No.3=the No.3bus 3路公共汽车;
③ 表示住所时不用“No.”如:302房间—Room 302(读作:room three o two);
④ 如果编号的数词比较长,一般用基数词。如:Page 457第457页;
⑤ 电话号码,用基数词,如:3855633—three eight five five(double five) six three three(double three)。
5.分数的表达
分子用基数词,分母用序数词,分子大于“1”,分母则加“s”。如:1/3 one third,2/3two thirds;
另外:1/2 a(one)half; 1/4one fourth或a(one)quarter;3/4threefourths或three quarters。
half a second; a quarter of a second四分之一秒
6. 表示有小数的词用基数词
5.5 five point five
12.135 twelve point one three five
7.表示百分数
5℅:five percent (per cent), 0.8℅ zero point eight percent (per cent).
8.表示有小数的词用基数词
5.5 five point five
12.135 twelve point one three five
9.其他用法
1)基数词+单数名词+形容词构成合成形容词。如:一个五岁的男孩a five-year-old boy;
一座800米长的桥an 800-metre-long bridge;女子400米接力girls'400-metre relay race。
2)具体数词+metre(s)/kilometre(s)/kilo(s)long / high /tall /deep /away等。如:长江长6300公里。The Changjiang River is 6,300 kilometres long.
3)表示"几十岁"用序数词,eg. 在他三十几岁时 in his thirties
4)倍数的表达:(一倍用once,两倍用 twice,两倍以上用基数词+times。如:5倍five times)。
例如:He is as tall a boy as I.
He is a head taller than I .
He is two years older than I
China is four times as large as Europe.
I am twice as old as you. (=I am twice older than you. /I am twice the age of you.)
My books are twice as many as yours.
China is four times larger than Europe.(=China is four times the size of Europe.)
I pay twice as much as it was worth.
I pay twice as much for the house.