人教PEP版英语五下《Unit 3 My Birthday》PPT课件之四[www.edudown.net].pptVIP免费

表示次序的数词叫序数词，是由基数词变化而来的。1one-----first2two------second3three----third4其余的序数词是由基数词后加-th变化而来。几个特殊变化的序数词1five----fifth2twelve----twelfth3eight----eighth4nine----ninth整十的序数词把y变成i加-eth1twenty----twentieth2thirty----thirtieth3forty----fortieth4fifty-----fiftieth5你能写出sixtyseventyeightyninety的序数词吗？你对了吗？1.Sixty----sixtieth2.seventy---seventieth3.eighty----eightieth4,ninety----ninetieth几十几的序数词，十位数不变，个位数变成序数词。1.twenty-one21----twenty-first21st2.thirty-two32-----thirty-second32nd3.ninety-nine99----ninety-ninth99th4.请写出66834855的序数词。日期的表达dateWhat’sthedatetoday?It’sMarch28th.（1879.3.14-1955.4.)EinsteinHisbirthdayisMarch14th.LuXunHisbirthdayisSept.25th(1881.9.25-1936.10.19)Whenisyourbirthday?It’s_______.WhenisTeacher’sDay?It’sSept.10th.WhenisChildren’sDay?It’sJune1st.WhenisChristmasDay?It’sDec.25th