小学简单序数词课件.ppt

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1、Blet'slearn四年级下册英语Unit4Let'ssing击掌拼读单词全班学生一起反复读first到fifth，当老师击掌时，全班快速拼读该单词。Freetalk(pairwork)Howmanymonthsarethereinayear?What’syourfavouritemonth?WhenisChina’sNationalDay?WhenisChildren’sDay?first1st2ndthird3rdfourth4thfifth5thsecondonetwothreefourfive基数词序数词缩写sixsevensixtheightnineten基数词序数词

2、teseventhtentheighthnintheleventheleven缩写形式6th7th8th9th10th11thtwelvetwelfth12th13ththirteenthirteenthtwentytwentieth20ththirtythirtieth30th基数词序数词缩写形式fourteenfourteenth14thfifteenfifteenth15thsixteensixteenth16thseventeenseventeenth17theighteeneighteenth18thnineteennineteenth19thtwenty-one21s

3、t基数词序数词缩写形式twenty-twotwenty-threetwenty-fourtwenty-firsttwenty-secondtwenty-thirdtwenty-fourth22nd23rd24th要是遇到两位数，十位基数个位序，th最后加上去。thirty-one31stthirtythirtieth30th基数词序数词缩写形式thirty-twothirty-threethirty-fourthirty-firstthirty-secondthirty-thirdthirty-fourth32nd33rd34th基数词变序数词口诀一，二，三，单独记，八去t，九去

4、e，ve要用f替，整十去y改ie，然后再加th；要是遇到两位数，十位基数个位序，th最后加上去。手心手背学生根据老师的手势，快速读出单词。手心朝上读twelfth，手心朝下读twentieth。手心朝上读thirty，手心朝下读thirtieth。What’smissing?twelfthtwentieththirtieththirty-firsttwenty-fourthtwenty-ninthtwenty-secondtwenty-third写出缩写形式twentiethtwelfththirtiethtwenty-firsttwenty-thirdtwenty-second

5、20th12th30th21st23rd22nd1st,2nd,3rd为特殊形式，其他都是数字后加上thLet’slearnWhenisGrandpa’sbirthday?It’sonOctober12th.Lookandwrite写出缩写形式LookandsayMarch8thSeptember10thDecember25thMarch12thWhenis...?It'son______.Practice一、按要求改写下列单词。1.August(缩写词)2.Apr.(完整形式)3.twelve(序数词)4.twenty(序数词)5.thirty-one(序数词)6.second

6、(基数词)7.first(基数词)8.23rd(完整形式)Aug.Apriltwelfthtwentieththirty-firsttwoonetwenty-third二、选择填空。1.Mybirthdayis_____March24th.A.inB.onC.at2.Thereare____daysinFebruary.A.27thB.28C.28th3.Whenisthesportsmeet?It’sonApril___.A.3rdB.twoC.three4.____isonApril1st.A.EasterB.AprilFool’sDayC.ChristmasPractice

7、BBABfirstthirdsecondfourthbirthdayfifth大声读出飞机中的单词Homework1.抄单词表unit4第十二到第三十的单词，每个两行，每行4个，单词本，家长签名，写中文和标题，按照抄写本格式写，明天交。2.读42页内容。