中考英语数词专题复习.ppt

心存感激，永不放弃！即使是在最猛烈的风雨中，我们也要有抬起头，直面前方的勇气。请相信：任何一次苦难的经历，只要不是毁灭，就是财富！,教师寄语,数词,基数词,序数词,数量,顺序,一.基数词的构成,1）112,独立成词。onetwothreefourfivesixseveneightnineteneleventwelve2）13-19,由39+teen构成。14fourteen16-sixteen17-seventeen19nineteen特殊拼写:13thirteen15-fifteen18eighteen3）2090,以-ty结尾。20twenty30-thirty40forty50fifty80-eighty60-sixty70-seventy90ninety4）2199，两位数，十位与个位之间有“”。21twentyone55fiftyfive99ninetynine5）101999，三位数，百位与十位/个位之间加and。101onehundredandone840eighthundredandforty693sixhundredandninety-three,29,431,500,7,6,thousand,hundred,million,billion,and,6)1，000以上数目,从右向左每三位用“，”分开,分别读为thousand,million,billion,基数词的构成,二.概数词的用法,1、表示具体数目,hundred,thousand,million不用复数表示不确定数目,用复数。即hundredsof(数百),thousandsof(数千),millionsof(数百万)+名词复数,可以用many/several修饰，但不能与具体数目连用。1)Ourcountryhasapopulationof1,300millionpeople.2)Therearethreethousandstudentsinourschool.3)Afterthewar,thousandsofpeoplebecamehomeless.4)Several/Manythousandsoftreesmustbeplantedeveryyear.,1.Nine_poundsaweek?Thatsverygood.(04年河北)A.hundredofB.hundredsofC.hundredsD.hundred2.Howmanyteachersarethereinyourschool?Aboutfour_.(2013广安)A.thousandsofB.thousandC.thousandsD.thousandof3.TheearthquakeinYaanleft_peoplehomeless.(2013济宁)A.twothousandsB.thousandsofC.twothousandsofD.twothousandof4.“FoodSafety”hasbecomeoneofthehottesttopicsrecently(2013宜宾)Yeah,itreceives_Internethits(点击)aday.A.thousandsB.thousandofC.thousandsofD.tenthousands,三.序数词的构成,1)13,first,second,third。2)419,相应基数词+th,特殊拼写:fifth,eighth,ninth,twelfth。3)2090,y变成ie+th,如twentieth。4)2199,只把个位的基数词变成序数词如twenty-first。5)序数词缩写-数字最后两字母如1st,2nd,3rd,4th,基变序,有规律,一、二、三，特殊记，面目全非要注意，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。序数词缩写记清楚,数字后跟两字母。,(序数词构成规律),(1)序数词作定语，前面要加the；ThefirsttruckiscarryingafoodbasketJohnlivesonthefifteenthfloorSheismyfirstEnglishteacher.(2)有时加a/an，“再一”，“又一”的意思WellhavetodoitasecondtimeShallIaskhimathirdtime？WhenIsatdown，afourthmanrosetospeakTheyhadasecondchildin1988,序数词的用法,1/4one-fourtha(one)quarter3/4three-fourthsthreequarters2/3two-thirds1/2a(one)half半年halfayear半小时halfanhour一年半oneandahalfyearsoneyearandahalf,四.分数表示法,分子用基数词，分母用序数词。分子大于1时，分母加-s。,1.About_studentsinourclasscandescribethatplaceinEnglish.(2004年上海）A.three-fifthsB.three-fifthC.third-five2._ofthestudentsinourschool_girls.(2013牡丹江)A.Twothree,areB.Twothirds,isC.Twothirds,areD.Two,is3.Itssaidthat_ofthewateraroundtheworld_polluted.13黄石)twothird;hasB.twothirds;haveC.twothird;areD.twothirds;is4.Whatshouldwedonow?(2013黄冈)PleaseturntoPage_andlookatthe_picture.A.Twelve;fifthB.Twelfth;fifthC.Twelve;fiveD.Twelfth;five,五.编号表示法,编号在前，名词在后，用序数词，前面有the编号在后，名词在前，用基数词，注意首字母大写房间号码和电话号码要一个一个分别读,TheFirstLesson（在句子中不大写）LessonOne,thethirty-secondpagePage32/PageThirty-two,Room305,BusNo.12,第一课第32页第305房间第12路公共汽车,1999nineteenninety-ninetwothousandandeight1949年10月1日读作:October(the)first,nineteenforty-nine(月-日，年)thefirstofOctober,nineteenforty-nine（日-月，年）写作:October1st,1999(日用缩写，月-日-年)October1,1999(日用数字)1stOctober,1999日-月，年,六.年份、日期表达法,年用基数词表示,两位一读,介词用in日用序数词表示,介词用on,表示“在世纪”,用序数词。在20世纪写作：in20thcentury读作：inthetwentiethcentury,七.其它数词知识：1、“几十”的复数形式可以表示：几十多岁-in+ones+数词复数年代-in+the+数词复数1)Hediedinhisforties四十多岁2)Inthenineties,mostpeoplegotoworkbybike.90年代,2、“基数词+名词”的合成形容词作定语，中间有连字符“”,当中的名词用单数。a3yearoldgirlaseven-dayholiday,3、表计量-“基数词+度量单位+形容词”Theclassroomis7meterslong,6meterswideand3metershigh.,4、表示时刻(介词用at)1)顺读法-先时后分,“几点几分”9:30ninethirty6:21sixtwenty-one,3)15分钟：aquarter30分钟：ahalf9:15aquarterpastnine12:30halfpasttwelve,2)逆读法-先分后时表示“几点过几分”，半小时以内，介词用past分钟数+past+钟点数10:10tenpastten8:20twentypasteight,表示“几点差几分”，半小时以上，介词用to60减原分钟+to+(下一个)钟点数9:50tentoten7:40twentytoeight,1.26About_ofthestudentsinGradeNinethisyearwereborninthe_.(2012贵州铜仁)threefive;1996.B.threefifths;1990sC.thirdfifth;1997.D.thirdfifths;1990s2.OnFebruary25,2013,LiAn,aChinesedirector,wonthebestdirectoragain.Itishistimetowinan“Oscar”.(2013东营)A.firstB.threeC.twiceD.second3.Canyouimaginewhatlifewillbelikein_time?(2013阜康)A.20yearsB.20yearsC.20-yearsD.20-year4.Thistallbuildinghas_floors.AndTonylivesonthe_floor.(2013贺州)A.twelve;twelveB.twelfth;twelfthC.twelfth;twelveD.twelve;twelfth,5.Pleaseturntopage_andlookatthe_pictureinthisunit.(2012山东)twentieth;oneB.twenty;oneC.twentieth;firstD.twenty;first6.Whendidyoustarttocollectstamps?(13丹东)Igotmy_stampwhenIwas_yearsold.A.one,sevenB.one,seventhC.first,seventhD.first,seven7.Wehavetwoearsandonemouthsothatwecanlisten_wespeak.A.astwicemuchasB.twicean