安徽省亳州市风华中学九年级英语《数词》课件.ppt

数词 数词的考点 一 基数词 序数词 二 数词的表示法 一 基数词 序数词 first second third fourth fifth sixth eighth ninth twelfth twentieth twenty first fortieth onehundredth onehundredandfifth onehundredandtwenty ninth nineteenth 二 基数词的读法 1 百位和十位间用and连接 十位和个位间用 连接 threehundredandtwenty one 321 2 右往左数 三位一组 逗号隔开 依次是thousand 千 million 百万 billion 十亿 fourthousandthreehundredandtwenty one sevenmillion sixhundredandfiftyfourthousandthreehundredandtwenty one 7 654 321 1 987 654 321 4321 4 321 onebillionninehundredandeighty sevenmillion sixhundredandfifty fourthousandthreehundredandtwenty one 1 hundredthousand 表示具体数字 millionbillion2 hundredsthousands 表示概数 millionsbillions 三 基数词的用法 数词 several of some manyhundredsof 1 ifa 3 b 4 what stheanswertotheproblem a 2ab 1 theansweris a twentyeightb twenty eighthc twenty eight2 inourschoolseveral studentsareabletosearchtheinternet a hunderdofb hunderdsofc hundred 3 many sheepwerekilledintheaccident a thousandsofb thousandc thousands4 thereareovernine workersinthefactory but ofyoungpeoplehopetoworkinit a hundred hundredsb hundreds hundredsc hundreds hundred 月日年在2008年10月1日 四 数词的表示法 年月日 onoctorberthefirst twothousandandeight onaugusttheninth inmay twothousandandten 有日用on无日用in onoct 1st 2008 月日在8月9日 月年在2010年5月 1 theaccidenthappenedon a april5 2001b 2001 april5c april2001 52 iwasborn a inmarch8 1993b onjuly9 1994c onmay 1995 20世纪90年代 inthe1990s 在他50多岁时 inhisfifties 四 数词的表示法 年代世纪 inthe inone s 整十基数词复数在某人几十岁时 nineteen nineties 1 therewillbemorechancesin centurythanin century a twenty one twentyb twenty first twentiethc thetwenty first thetwentieth2 thecitychangedalot a in1980sb inthe1980sc inthe1980 3 hegraduatedin of century a thesixtieth twentyb sixty thetwentiethc thesixties thetwentieth4 hegottheprize a inhisfiftiesb infiftiesc inhisfifty oneo clock tenpasttwo halfpastthree twentytofive aquarterpastfive aquartertoseven sevenfifty 表示在几点钟用介词at 四 数词的表示法 时间 1 it salready7 40now whenwillthefilmstart westillhavefiveminutes a aquartertosevenb sevenpastforty fivec aquartertoeight 15 分子基数词分母序数词 onefifth 27 分子 1分母 s twosevenths 14 分子a分母quarter aquarter 34 threequarters 12 ahalf 13 threeandonethird 3 基数词 and 分数 四 数词的表示法 分数百分数 80 基数词 percent eightypercent half 百 分数 of 可数名词复数谓语动词用复数half 百 分数 of 不可数名词谓语动词用单数 3 78 threepointseveneight 1 ofthestudents boysinclassa twothree areb twothirds arec twothirds is2 ofhermoney spentonclothes a twothree areb twothirds isc twothird is3 theteachersinourschoolisaboutonehundred and ofthemarewomenteachers a thenumberof twothirdb thenumberof twothirdsc anumberof twothirds 一个半小时两个半小时 twoandahalfhours twohoursandahalf oneandahalfhours onehourandahalf 四 数词的表示法 半的表示法 1 theboyalwaysstaystherefor a oneandhalfhourb oneandahalfhourc oneandahalfhours2 theoldmandrank beer a twobottlesandahalfb twoandahalfbottlec twobottleandahalf 一倍once 两倍twice 三倍threetimes 三倍或以上基数词 times 四 数词的表示法 倍数 thisboxisfivetimesasbigasthatone thisboxisfourtimesbiggerthanthatone a be 倍数 as adj 原 as b a是b的 倍 c be 倍数 adj 比 than d c比d 倍 1 thisbuildingis thatbuilding a threetimeastallasb twicetallerthanc threetimesastalleras2 我的箱子比你的重六倍 myboxis yours sixtimesheavierthan seventimesasheavyas 一般编码用名词 基数词207房三年级一班第五部分第一课3号汽车第一中学 room207classonegradethreepartfive thefifthpartlessonone thefirstlessonbusno 3 theno 3busno 1middleschool 四 数词的表示法 编号 thewinneris heisan boy a eight year old eightyearsoldb eightyearsold eight year oldc eight yearso