小学英语基数词序数词---语法精ppt课件

.,1,Unit7,数词,.,2,什么是数词？,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；表示顺序的数词叫序数词。,.,3,基数词,one,two,three,four,five,six,seven,eight,.,4,seven,six,three,zero,nine,two,one,eight,four,five,.,5,numbers,seven,six,three,zero,nine,two,one,eight,four,five,.,6,Numbersarewidelyused.,Hello，86861873-,.,7,Title,Numbersong,Letssingasong！,.,8,Letscount!,1-10onetwothreefourfivesixseveneightnineten11-19eleventwelvethirteenforteenfifteensixteenseventeeneighteennineteen,.,9,Letsreview,10,20,30,40,50,60,70,80,90,100,ten,thirty,forty,seventy,sixty,Onehundred,fifty,ninety,twenty,eighty,.,10,Dragon,1-100,.,11,1,3,2,4,LookandRead,100onehundred,1,000onethousand,1,000,000onemillion,1,000,000,000onebillion,.,12,1002,00030,000400,0005,000,00060,000,000700,000,0008,000,000,00090,000,000,000100,000,000,000,Canyoureadthem?,hundred,thousand,million,billion,.,13,onehundredonethousandtenthousandonehundredthousandonemilliontenmilliononehundredmilliononebilliontenbilliononehundredbilliontens/hundreds/thousands/millionsof,一百一千一万十万一百万一千万一亿十亿一百亿一千亿数十/百/千/百万,看谁译得快：,.,14,Step1:onehundredandtwenty-threebillion,Step2:fourhundredandfifty-sixmillion,Step3:sevenhundredandeighty-ninethousand,Step4:onehundredandthree,103,789,456,123,.,15,625sixhundredandtwenty-five8,961eightthousand,ninehundredandsixty-one95,680ninety-fivethousand,sixhundredandeighty,LookandPractice,.,16,LookandPractice,6,302,876sixmillion,threehundredandtwothousand,eightyhundredandseventy-six45,690,510,810forty-fivebillion,sixhundredandninetymillion,fivehundredandtenthousand,eighthundredandten,.,17,8,3,9,1,Whatisthelargest/smallest4-digitnumber?,9831,1389,.,18,Letsdoapractice!,facetofacenumbertonumber,.,19,one-first,two-second,three-third,four-fourth,five-fifth,six-sixth,seven-seventh,eight-eighth,nine-ninth,ten-tenth,序数词,.,20,twenty-twentieth,thirty-thirtieth,forty-fortieth,fifty-fiftieth,sixty-sixtieth,seventy-seventieth,eighty-eightieth,ninety-ninetieth,.,21,tenth,ninth,eighth,seventh,sixth,fifth,fourth,third,second,first,.,22,ordinalnumbers,tenth,ninth,eighth,seventh,sixth,fifth,fourth,third,second,first,.,23,一、二、三，特殊记，加th从4起，八少“t”，九去“e”，“ve”要用“f”替，(five,twelve)见“y”变成“i”和“e”，词尾加上“th”，(twenty,thirty,-ninety)若是遇到几十几，只变个位就可以。,ordinalnumbers(序数词),.,24,Canyouwritetheirordinalnumbers?,2,5,44,12,9,18,72,19,101,90,40,14,8,100,1000,.,25,Decemberisthe_monthoftheyear.Mondayisthe_dayoftheweek.Englishisspokenbymostpeopleastheir_languageintheUSA,GreatBritain,Australian,andCanada.TheGamesofthe_Olympicin2008willbeheldinthecityofBeijing.Imhungry.Iveeatenthreeapples.Wouldyoupleasegivemea_one?Atthebeginningofthe_centurytheworldspopulationhaspas