Unit8Whenisyourbirthday?11stfirst

2ndsecond

3rdthird4thfourth5th

fifth6thsixth7thseventh8theighth9th

ninth10thtenth11theleventh12th

twelfth13ththirteenth14thfourteenth15thfifteenth16thsixteenth17thseventeenth18theighteenth19thnineteenth20thtwentieth21sttwenty-first22ndtwenty-second23rdtwenty-third24thtwenty-fourth25thtwenty-fifth26thtwenty-sixth27thtwenty-seventh28thtwenty-eighth29thtwenty-ninth30ththirtieth31stthirty-firstLearnthesenumbersandfindouttherules:下一頁上一頁2基數(shù)詞變序數(shù)詞表示順序的數(shù)詞叫序數(shù)詞?；鶖?shù)詞變序數(shù)詞的規(guī)則是：（1）大部分數(shù)詞在詞尾加th：如:fourth（第四）thirteenth（第十三）

hundredth（第一百）（2）表示整十的基數(shù)詞，變y為ie，再加eth;

如：twentieth第二十eightieth第八十（3）特殊的序數(shù)詞有:第一first,第二second，第三third，第五fifth,第八eighth,第九ninth，第十二twelfth下一頁上一頁3(4)要把一個“幾十幾”，“幾百幾”的基數(shù)詞變成序數(shù)詞，只需把個位數(shù)變成序數(shù)詞。如:32---thirty-second256---twohundredandfifty-sixth(5)在表示編號的東西時，可以用基數(shù)詞表示，也可用序數(shù)詞表示如:thefirstlesson=LessonOnethesixthgrade=GradeSix下一頁上一頁4

1st

first

2nd

second3rdthird5thfifth8theighth12thtwelfth基變序有規(guī)律，結(jié)尾字母是th;一、二、三，特殊記，結(jié)尾字母是t,d,d；八去t,九去e;f要把ve替。ty將y變成i,th前面有個e；幾十幾，也好記，只變個位就可以。9thninth下一頁上一頁5ThefirstmonthoftheyearissecondthirdfourthfifthsixtheleventhseventheighthninthtenthtwelfthFebruaryMarchAprilMayJuneJulyAugustSeptemberOctoberNovemberDecemberJanuary.下一頁上一頁6寫出下列日期的英文表達法

1.3月12日2.8月8日

3.1月5日4.7月20日

5.12月1日6.9月9日

7.4月3日8.11月2日

9.2月14日10.5月30日11.6月23日12.10月21日March12thAugust8thJanuary5thJuly20thDecember1stSeptember9thApril3thNovember2ndFebruary14thMay30thJune23rdOctober21st下一頁上一頁7Readthedates:Writing(寫法）Reading（讀法）January1stMarch8thAugust2ndSeptember10thJuly3rdFebruary12thOctober20thDecember25thJanuary(the)firstMarch(the)eighthAugust(the)secondSeptember(the)tenthJuly(the)thirdFebruary(the)twelfth下一頁October(the)twentiethDecember(the)twenty-fifth上一頁84.序數(shù)詞常用作名詞的定語，但當(dāng)名詞前面已有物主代詞等限定詞時，則不能再用the。如：Thesecondboylikesplayingbaseball.序數(shù)詞的用法：1.序數(shù)詞前一般要加定冠詞the。如：Thefirstboyismybrother.2.表示編號時，常把基數(shù)詞放在名詞后面來表示順序，相當(dāng)于“the+序數(shù)詞+名詞”。如：lessonfive=thefifthlesson3.表示分數(shù)時，基數(shù)詞作分子，序數(shù)詞作分母，當(dāng)分子大于1時，分母要用復(fù)數(shù)。如：1/4onefourth;2/5twofifths上一頁下一頁9SchoolEvents上一頁下一頁10anopendayofschool上一頁下一頁11anartfestivalabasketballgame上一頁下一頁12anEnglishpartyamusicfestival上一頁下一頁13party晚會，聚會Birthdayparty生日晚會Christmasparty圣誕晚會上一頁下一頁14speechcontest演講比賽EnglishcontestChinesecontest上一頁下一頁15schooltrip學(xué)校組織的觀光、郊游上一頁下一頁16aheadmasteraschoolcalendarschoolevents上一頁下一頁17Joe:Sally.Canyouhelpmefillinmycalendar?Sally:Sure,Joe.Joe:Whenisyourbirthdayparty?Sally:MybirthdaypartyisOctober5th.Joe:OK,andwhenisthebasketballgame?Sally:Thebasketballgame?Oh,it’sOctober2nd.Joe:Good.And,um,howabou