Section APeriod 1 (1a-2d)January 1stNew Years Dayin January or FebruarySpring FestivalMarch 8thWomens DayApril 1st May 1stChildrens DayJune 1stTeachers DaySeptember 10thMid-Autumn Dayin September or OctoberNational DayOctober 1stThanksgiving Daythe fourth Thursday in NovemberChristmas DayDecember 25th When is the Teachers Day ?Its September 10thIts October 1st.When is National Day?一一. .第第1,1,第第2,2,第第3 3： first, second, third二二. .第第4-4-第第1919：-th: fourth, (five) fifth, sixth, seventh, (eight )eighth, (nine) ninth, tentheleventh, (twelve) twelfth, thirteenth, fourteenth fifteenth, sixteenth seventeenth eighteenth nineteenth三三. .第第20-20-第第9090：y yi i+eth+eth四四. .第第21-21-第第99:99:十位十位基数词基数词个位个位序数词序数词1 2 3 特殊记特殊记, 词尾字母词尾字母t，d，d。 8 加加 h, 9 去去 e, f 来把来把 v e 替。替。 整十变整十变y为为i加加eth 若想表示第几十几，只变若想表示第几十几，只变个位个位就可以。就可以。twenty twentiethtwenty one twenty firstonetwothreefourfivesixseveneightninetenfirstsecondthirdfourthfifthsixthseventheighthninthtenth1st2nd3rd4th5th6th7th8th9th10theleventwelvethirteenfourteenfifteensixteenseventeeneighteennineteentwentyeleventhtwelfththirteenthfourteenthfifteenthsixteenthseventeentheighteenthnineteenthtwentieth11th12th13th14th15th16th17th18th19th20th基数词基数词基数词基数词序数词序数词序数词序数词基变序，有规律，词尾加上基变序，有规律，词尾加上th。123 ，特殊记，词尾字母，特殊记，词尾字母t，d，d。8去去t，9去去e，f来把来把ve替。替。twenty-onetwenty-twotwenty-threethirtyfortyfiftysixtyseventyeightyninetyhundredtwenty-firsttwenty-secondtwenty-thirdthirtiethfortiethfiftiethsixtiethseventietheightiethninetiethhundredth21st22nd23rd30th40th50th60th70th80th90th100th 整十整十y 变变i， th前有小前有小e来来基数词基数词 序数词序数词When is your birthday?My birthday is _ _.六月一日六月一日When _ your birthday?My birthday is _ _.1月日月日When _ your birthday?It is _ _. 5月月29日日June first/1stisDecember eighth/8thisMay twenty-ninth/29th1st2nd3rd4th5th6th7th8th9th 10th14th11th 12th 13th15th16th 17th 18th 19th 20th 21st 22nd23rd 24th 25th 26th 27th 28th 29th30th 31st2b Listen and circle the numbers you hear in 2a.2c Listen and match the names, months and days.Name Month DateLeila July 4thNick August 22ndRobert January 5thJane September 17thAsk your partner about birthdays.A: When is your birthday? B: My birthday is _. A: When is your mothers birthday? B: Her birthday is _. A: When is your fathers birthday? B: His birthday is _. December 10thMarch 25thJuly 18thPair Work2dNameDate of birthMake a survey.Report like this: Cindys birthday is February 9th