1st.2nd.3rd.4th.怎么读

first第一second第二third第三fourth第四fifth第五sixth第六seventh第七eighth第八ninth第九tenth第十eleventh第十一twelfth第十二thir

1st2nd3rd4th...10th11th12th.(11到19都是加th,因为英语是-teen"th"..21st（20之后所有1,2,3,分别是st,nd,rd.其他所有都是th）22nd23

December(the)first或thefirstofDecemberOctober(the)second或thesecondofOctoberSeptember(the)third或thethi

firstsecondthirdfourthfifthsixthseventheighthninthtentheleventhtwelfth

是序数词第一、第二.等的缩写.拷贝上来一段：你看看first第一1stsecond第二2ndthird第三3rdfourth第四4thfifth第五5thsixth第六6thseventh第七7the

firstsecondthirdfourthfiftheighthnintheleventhtwelfththirteenthtwentiethTwenty-firstTwenty-secondTwe

正确

mostcommonis'oneandahalf'.somemaysay'oneandonehalf'.Whenyouusewordslikefirst,second,third,fourth,fif

fifthtwelfthsecondfirstnineththirdeighthseventhlong-jumphigh-jumpthe200metresracethe100metresracepla

是.因为11、12、13分别是eleven,twelve,thirteen,其他的则分别是对应的十位数加one,two,three,所以作序数词时,也相应地变成first,second,third,即

thirty-firstninetiethtwenty-secondfourty-third

fifth,twelveth,second,first,ninth,third,eighth,seventh

这些是简写形式由序数词来的first1stsecond2ndthird3rdfourth4th从3以后就是加th了就是阿拉伯数字,取后两个字母表示序数,就可以和数字区分开来

11-eleveneleventh12-twelvetwelfth13-thirteenthirteenth21-twenty-onetwenty-first22-twenty-twotwenty-s

firstsecondthird看到单词还不会读的话就去查查词典吧再问：我没说清楚，我知道是读firstsecondthird而在onJuly1st/2nd/3rd，1988中应读作onJulyfir

第二十一,第二十二.第二十六

8月2号93104115126

英语上数词分为两大类：基数词和序数词.序数词是指表示顺序的数词.口诀是：基变序,有规律,词尾加上-th.　　一,二,三,特殊记,词尾字母t,d,d.　　八去t,九除e,ve要用f替,ty将y变成i,t

4th5th6th7th8th9th10th11st12nd13rd.21st22nd23rd

22ndtwenty-second31stthirty-fist43rdforty-third55thfifty-fifth101stonehundredandfirst80theightieth