當(dāng)前位置：英語(yǔ)中數(shù)詞的基本用法
來(lái)源:本站原創(chuàng) 點(diǎn)擊率: 發(fā)布: 2013-3-22
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(一)基數(shù)詞的基本用法
1.定語(yǔ)
fifty thousand london dockers are out on strike.
2.主語(yǔ)
數(shù)詞作主語(yǔ)，謂語(yǔ)動(dòng)詞用單數(shù)。
如： two months is quite a long time.
five is an odd number.
3.賓語(yǔ)或介詞賓語(yǔ)
how many do you want? -----eight, please.
the city has a population of four million.
4.表語(yǔ)
we are altogether fourteen.
five plus seven is twelve.
5.同位語(yǔ)
what work are you to assign us three?
is there room for us two?
6.基數(shù)詞＋單數(shù)名詞＋形容詞構(gòu)成合成形容詞。如：一個(gè)五歲的男孩a five-year-old boy；一座800米長(zhǎng)的橋an 800-metre-long bridge；女子400米接力girls'400-metre relay race。
7.句型：主語(yǔ)＋is ＋about(大約)／ over ＝more than(超過(guò))／nearly(接近)＋具體數(shù)詞＋metre(s)／kilometre(s)／kilo(s)long ／ high ／tall ／deep ／away等。如：長(zhǎng)江長(zhǎng)6300公里。
the changjiang river is 6，300 kilometres long.
8.表示“。。。。。。十”的數(shù)詞的復(fù)數(shù)形式可以用來(lái)表示人的歲數(shù)或年代：
he is in his early thirties.
he died still in his forties.
this took place in the 1930s.
(二)序數(shù)詞的基本用法
1.序數(shù)詞主要用作定語(yǔ)，前面一般要加定冠詞(或物主代詞)：
tom is their second son.
they celebrated the 10th anniversary of the founding of the republic.
i will never give up, not even on the 1,000th or 10,000th try.
2.有時(shí)前面可以加一個(gè)不定冠詞來(lái)表示“再一”， “又一”這樣的意思：
we’ll have to do it a second time.
shall i ask him a third time?
when i sat down, a fourth man rose to speak.
3.first,second 等有時(shí)可用來(lái)表示“第一個(gè)人(批)”“第二個(gè)人”等：
she was among the first to come and settle in dujiashan.
you will be the second to speak.
4.如果數(shù)字較長(zhǎng)，序數(shù)詞總避免使用，而且讀的方法也常常簡(jiǎn)化：
第201房間： room 201
第319面： page 319
第一拖拉機(jī)廠：the number i tractor works
第六號(hào)車廂：carriage no.6
南京路1490號(hào)：1490 nanjing road
電話號(hào)碼55╠╠2347：telephone number : 55—2347
5. 在談編了號(hào)的東西時(shí)，我們可以用基數(shù)詞表示順序：
the first part------part one
the third squad------squad three
the twenty-third section----section twenty-three
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