小学英语基数词序数词-语法.ppt

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1、LOGOUnit 7Unit 7数数 词词什么是数词？表示数目多少或顺序多少的词叫数词，数词分为基数词和序数词。表示数目多少的数词叫基数词基数词；表示顺序的数词叫序数词序数词。基数词基数词onetwothreefourfivesixseveneightsevensixthreezeroninetwooneeightfourfivenumberssevensixthreezeroninetwooneeightfourfiveNumbers are widely used.Numbers are widely used.Hello，86861873-TitleNumber songLets sin

2、g a song！Lets count!1-10 one two three four five six seven eight nine ten 11-19 eleven twelve thirteen forteen fifteen sixteen seventeen eighteen nineteenLets review tenthirtyfortyseventysixtyOnehundredfiftyninetytwentyeightyDragon 1-1001324Look and Read100 one hundred1,000 one thousand1,000,000 one

3、 million1,000,000,000 one billion1001002,0002,00030,00030,000400,000400,0005,000,0005,000,000 60,000,00060,000,000700,000,000700,000,0008,000,000,0008,000,000,00090,000,000,00090,000,000,000100,000,000,000100,000,000,000Can you read them?Can you read them?hundredhundredthousandthousandmillionmillion

4、billionbilliononehundredonehundredoneonethousandthousandtenthousandtenthousandonehundredthousandonehundredthousandoneonemillionmilliontenmilliontenmilliononehundredmilliononehundredmilliononeonebillionbilliontenbilliontenbilliononehundredbilliononehundredbillion tens/hundreds/thousands/millions of t

5、ens/hundreds/thousands/millions of一一百百一一千千一万一万十万十万一一百万百万一千一千万万一亿一亿十亿十亿一百亿一百亿一千亿一千亿数十数十/百百/千千/百万百万看谁译得快：看谁译得快：,Step1:one hundred and twenty-three billion,Step2:four hundred and fifty-six million,Step3:seven hundred and eighty-nine thousand,Step4:one hundred and three103789456123,625 six hundred and t

6、wenty-five 8,961 eight thousand,nine hundred and sixty-one 95,680 ninety-five thousand,six hundred and eightyLook and PracticeLook and Practice 6,302,876 six million,three hundred and two thousand,eighty hundred and seventy-six 45,690,510,810 forty-five billion,six hundred and ninety million,five hu

7、ndred and ten thousand,eight hundred and ten 8391What is the largest/smallest What is the largest/smallest 4-digit number?4-digit number?98311389Lets do a practice!Lets do a practice!facetofacenumbertonumberone-firsttwo-secondthree-thirdfour-fourthfive-fifthsix-sixthseven-seventheight-eighthnine-nin

8、thten-tenth序数词twenty-twentieththirty-thirtiethforty-fortiethfifty-fiftiethsixty-sixtiethseventy-seventietheighty-eightiethninety-ninetiethtenthnintheighthseventhsixthfifthfourththirdsecondfirstordinalordinal numbers numberstenthnintheighthseventhsixthfifthfourththirdsecondfirst一、二、三，特殊记，一、二、三，特殊记，加加

9、thth从从4 4起，起，八少八少“t t”，九去，九去“e e”，“veve”要用要用“f f”替，替，(five,(five,twelve)twelve)见见“y y”变成变成“i i”和和“e e”，词尾，词尾加上加上“thth”，(twenty,thirty,-ninety)(twenty,thirty,-ninety)若是遇到几十几，只变个位就可若是遇到几十几，只变个位就可以。以。v ordinal numbersordinal numbers(序数词)Can you write their ordinal numbers?254412918721910190401481001000

10、Decemberisthe_monthoftheyear.Mondayisthe_dayoftheweek.Englishisspokenbymostpeopleastheir_languageintheUSA,GreatBritain,Australian,andCanada.TheGamesofthe_Olympicin2008willbeheldinthecityofBeijing.Imhungry.Iveeatenthreeapples.Wouldyoupleasegivemea_one?Atthebeginningofthe_centurytheworldspopulationhaspassed6billion.Hegotoffthisbusandgotona_one.twelfth twelfth second secondfirstfirst twenty-ninth twenty-ninth fourth fourthtwenty-firsttwenty-firstsecondsecondPractice:作业LOGO