21到30的基数词和代数词

、序数词的表示法1.以下是最基本的序数词,学习者必须牢记：first(第1),second(第2),third(第3),fourth(第4),fifth(第5),sixth(第6),seventh(第

用基数词.如：afive-year-oldboyatwo-metre-deephole

基数词twentythirtyfortyfiftysixtyseventyeightyninetyhundred序数词twentieththirtiethfortiethfiftiethsixtiet

1:one—first2:two—second3:three—third4:four-fourth5:five—fifth6:six—sixth7:seven—seventh8:eight—eight

表示数目多少或顺序多少的词叫数词,数词分为基数词和序数词.表示数目多少的数词叫基数词；表示顺序的数词叫序数词.　　一、基数词　　1）基数词写法和读法：345threehundredandforty-f

基数词变序数词口诀英语中基数词变为序数词时,一般在基数词后加词尾-th,但有几个词变化特殊,只要记住下面这个口诀,这些问题即可迎刃而解.一、二、三,单独记；八去t,九除e,ve要用f替,整十基数变序数

oneeighty-foursecondtwelvethirdninthtwentiethhundredthfifthsixty希望帮到您

序数词firstsecondthirdfourthfifthsixthseventheighthninthtentheleventhtwevlfththirteenthfourteenthfiftee

是这样的没错

你们老师这是抽那门子的疯,等下再答：序数词firstsecondthirdfourthfifthsixthseventheighthninthtentheleventhtwevlfththirteen

基数词变序数词口诀英语中基数词变为序数词时,一般在基数词后加词尾-th,但有几个词变化特殊,只要记住下面这个口诀,这些问题即可迎刃而解.一、二、三,单独记；八去t,九除e,ve要用f替,整十基数变序数

基数词：1one2two3three4four5five6six7seven8eight9nine10ten11eleven12twelve13thirteen14fourteen15fifteen1

序数词一般由基数词后加th构成,前面一般加冠词the.以y结尾的基数词构成序数词时,把y边为i,再加eth.

基数词序数词基数词序数词基数词序数词onefirsteleveneleventhtwenty-onetwenty-firsttwosecondtwelvetwelfthtwenty-twotwenty

基数词：One,two,three,four,five,six,seven,eight,nine,ten,eleven,twelve,序数词：First,second,third,fourth,fif

1.123,456,789----onehundredandtwenty-threemillionfourhundredandfifty-sixthousandsevenhundredandeight

基数词：onetwothreefourfivesixseveneightnineteneleventwelvethirteenfourteenfifteensixteenseventeeneighte

基数词指一二三之类的而序数词则是第一第二第三。

1.one2.two3.three4.four5.five6.six7.seven8.eight9.nine10.ten11.elven12.twelve13.thirteen14.fourteen1

再答：再答：再答：再答：一定要有好评谢谢了再问：你的回答完美的解决了我的问题，谢谢！