中考网整理了关于2021年中考英语知识点：基数词的基本用法，希望对同学们有所帮助，仅供参考。

　　基数词的基本用法

　　1.定语

　　Fifty thousand London dockers are out on strike.

　　2.主语

　　数词作主语，谓语动词用单数。

　　如： Two months is quite a long time.

　　Five is an odd number.

　　3.宾语或介词宾语

　　How many do you want?——Eight，please.

　　The city has a population of four million.

　　4.表语

　　We are altogether fourteen.

　　Five plus seven is twelve.

　　5.同位语

　　What work are you to assign us three?

　　Is there room for us two?

　　6.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.

　　7.句型：主语+is +about(大约)/ over =more than(超过)/nearly(接近)+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.

　　8.表示“……十”的数词的复数形式可以用来表示人的岁数或年代：

　　He is in his early thirties.

　　He died still in his forties.

　　This took place in the 1930s.

关注中考网微信公众号 

每日推送中考知识点，应试技巧

助你迎接2021年中考！