1.Howmanymonthsarethereinayear?2.Whatmonthisthismonth?3.Marchiswhichmonth?first1stsecond2ndthirdfourth4thfifth5thsixth6th基变序,有规律,词尾加上th(fourth,sixth);一二三,特殊记,结尾字母t、d、d(first、second、third);八减t,九去e(eighth、ninth);f要把ve替(fifthtwelfth);ty将y变成i;别忘了th前面有个e.(twentieth、thirtieth)若是碰到几十几,前用基来后用序.(fifty-fourth)基变序儿歌Canyouwritetheirordinalnumbers?2,12,729,19,905,8,1814,40,44Sheisveryhappy,becausesheis.thefirstMyhouseison_______floor.thefourth4FIam37yearsold.MybirthdayisonFebruary8th.Whataboutyou?It’…Day…Dayison…Teachers’DaySeptember10thExpand(拓展)1/5onefifth3/4threefourthsHarvest:Whatdidyouhaveinthisclass?Homework1.WhiththehelpofChildren’ssongstoremembertheordinalnumbers.2.Usetheordinalnumberstomakesentences.