初中英语学习:数词的基本用法(一)基数词的基本用法1
定语FiftythousandLondondockersareoutonstrike
主语数词作主语,谓语动词用单数
如:Twomonthsisquitealongtime
Fiveisanoddnumber
宾语或介词宾语Howmanydoyouwant
-----Eight,please
Thecityhasapopulationoffourmillion
表语Wearealtogetherfourteen
Fiveplussevenistwelve
同位语Whatworkareyoutoassignusthree
Isthereroomforustwo
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afive-year-oldboy;一座800米长的桥an800-metre-longbridge;女子400米接力girls'400-metrerelayrace
句型:主语+is+about(大约)/over=morethan(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
TheChangjiangRiveris6,300kilometreslong
十”的数词的复数形式可以用来表示人的岁数或年代:Heisinhisearlythirties
Hediedstillinhisforties
Thistookplaceinthe1930s
(二)序数词的基本用法1
序数词主要用作定语,前面一般要加定冠词(或物主代词):Tomistheirsecondson
Theycelebratedthe10thanniversaryofthefou