中考试题-数词三

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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.