小学英语五年级下册Unit4 B Let's learn..ppt

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1、Unit4WhenisEaster?BLet’slearn中洲镇中心小学根枝教学点李少锋1stonetwothreefourfivefirstsecondthirdfourthfifth2nd3rd4th5th12345Whenis___________________?It’son____________________Newyear’sDayFebruary1stAprilFool’sDayApril1stChildren’sDayJune1stChina’sNationalDayOctober1stMayDayMa

2、y1sttwelfth第十二（的）12thtwelfthtwelveWhenisGrandpa’sbirthday?It'sonOctober12th.把ve变成f再加thtwentieth第二十（的）20thtwentiethtwentyWhenisGrandma’sbirthday?It'sonApril20th.把y变成ie再加ththirtieth第三十（的）30ththirtieththirtyWhenisDad’sbirthday?It'sonNovember30th.把y变成ie再加thtwenty-thi

3、rd第二十三（的）23rdtwenty-thirdtwenty-threeWhenisMum’sbirthday?It'sonFebruary23rd.几十几只变个位数twenty-first第二十一（的）21sttwenty-firsttwenty-oneWhenisyourbirthday?It'sonAugust21st.几十几只变个位数twelfthtwentiethtwenty-thirdthirtiethtwenty-firsttwenty-twotwenty-second基变序，有规律：一般都是在基数词的末

4、尾加上th发音

5、θ

6、特殊情况：1，一、二、三、特殊记，八去t,九去e,ve要用f替，最后th加上去.2，整十去y变ie,然后再加th.3，若是遇到几十几，只变个位就可以。基数词：1，2，3……序数词：第一，第二，第三……twentytwentieth20ththirtythirtieth30th第一、二、三特殊记一般是在基数词的末尾加th基数词末尾ve要用f替，再加th八去t，九去e，再加th整十基数变序数，末尾y改为ie，再加th基数词序数词序数词缩写onefirst1sttwosecond2ndthreethird3

7、rdfourfourth4thsevenseventh7thfivefifth5thtwelvetwelfth12theighteighth8thnineninth9th1、Children’sDayJanuary1st2、Fool’sDayApril1st3、China’sNationalDayJune1st4、NewYear’sDayOctober1st5、ChristmasDayDecember25thAttachmentWhat’smissingtwelfthtwenty-first22nd30ththirtie

8、th12th20thtwenty-third21stOctober24thSept.21stJuly12thJune23rdLookandwriteWhenisyourbirthday?Mybirthdayison….一、写出下列单词的完全形式(1)12th(2)20th(3)30th(4)21st(5)23rd(1)twelfth(2)twentieth(3)thirtieth(4)twenty-first(5)twenty-thirdHomework1.抄写42页Let’slearn的单词五遍.2.预习41页Let’

9、stalk.Thankyou