3冠词数词.doc

初中英语语法(二),,?,?上文提到的Iboughtabook,. I',very,same等前面Wheredoyoulive? Iliveonthesecondfloor. That'stheverythingI'vebeenlookingfor. ,)1-12单独记:one,two,three,four,five,six,seven,eight,nine,ten,eleven,twelve2)13-19词尾为teen,thirteen,fourteen,fifteen,……eighteen,een3)20,30,40,逢十词尾为ty,twenty,thirty,forty,fifty4)21-99在十位和个位数之间加连字符5)101-99先说几百,再加and,再加末尾两位数6)1000以上的数词,先从后向前数,每三位用一个计数“,”隔开,第一个thousand千,第二个million百万,第三个billion十亿基数词不难记,找出规律就容易。十二以内词各异一个一个单独记。后加teen变十几,thirteen,fifteen看仔细。十八需要看准确,,twenty,eighty重点记。forty去掉字母u,thirty,fifty更出奇。用法:inone’s+整十的复数,表示在某人…岁时inhistwenties,inherthirtiesinthe+年代复数表示…..世纪…、二、三、单独记,one-first,two-second,three-thirdth要从四加起,fourth,sixth,8减t,9去e,eight-eighth,nine-ninthf来把ve替five-fifth,twelve-twelfthty变成tietwenty-twentieth若是遇上几十几,只变个位就可以。Twenty-one-twenty-first用法:1)可简写成