lesson8firstsecondthird.pptx

Lesson 8First,Second,Third冀教版冀教版 四年级下册四年级下册This is a race.（比赛）（比赛）The girl is the second.Li Ming is the first.The boy is the third.secondthird基数词基数词序数词序数词firstonetwothreefourfivesixseveneightninetenthfthththhththonetwothreefourfivesixseveneightnineten除了第一第除了第一第二第三外二第三外,其其余的序数词余的序数词都是从基数都是从基数词加词加 th 变变化来的化来的sixteennineteenseventeeneighteenthirteenfourteenfifteeneleventhtwel ththvefthththththth整十数的序数词是把整十数基数词的整十数的序数词是把整十数基数词的词尾词尾y改为改为ie再加再加th twent2.thirty3.forty4.fiftythirtiethfortiethfiftietheighty ninetysixtyseventyhundredy ieth几十几的序数词，十位数不变，个位几十几的序数词，十位数不变，个位数变成序数词，中间用数变成序数词，中间用“-”连起来连起来1.twenty-onetwenty-first2.twenty-three twenty-third3.twenty-nine twenty-ninth 1,2,3特殊记特殊记 “th”从从4以上记以上记 8减减“t”,9减减“e”(eight-eighth,nine-ninth)“ve”要用要用“f”替替 (five-fifth,twelve-twelfth)整十去整十去“y”变变“ie”加加th (twenty-twentieth)要问几十几或几百几要问几十几或几百几 只变个位记心里！只变个位记心里！(twenty-two-twenty-second)序数词记忆规律：序数词记忆规律：What day is it？It is Tuesday.今天星期几？今天星期几？What is the date?It is March eighteenth.(Mar.18th)What day is it？Its Tuesday,March eighteenth.When is your birthday?It is.Homework 课文读三遍。