中考英语数词复习ppt课件

.,数词复习,.,数词,基数词,序数词,数量,顺序,.,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,.,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),.,基数词的用法,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.,.,2、“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,3、“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,4、表计量-“基数词+度量单位+形容词”Theclassroomis7meterslong,6meterswideand3metershigh.,.,5、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)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,.,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,.,1/4one-fourtha(one)quarter3/4three-fourthsthreequarters2/3two-thirds1/2a(one)half半年halfayear半小时halfanhour一年半oneandahalfyearsoneyearandahalf,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。,.,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,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,.,【实例解析】,.,1.(2004年上海市徐汇区中考试题)About_studentsinourclasscandescribethatplaceinEnglish.A.three-fifthsB.three-fifthC.third-fiveD.third-fifths答案：A。该题考查的是分数的表示法。分子用基数词表示，分母用序数词表示。分子大于1时，分母应加-s，因此应选A。,.,2.(2004年河北省中考试题)Nine_poundsaweek?Thatsverygood.A.hundredofB.hundredsofC.hundredsD.hundred答案：D。该题考查的是数词的用法。Ninehundred是一个具体的数量，这是数词不能用复数形式，后面也不能加of。所以应选D。,.,【中考演练】,选择题答案及分析15:BDDAB610:DCBAA1115:CABCC,.,中考听力题数词考点,.,1/21/31/424/253/43,threefourths/threequarters,onethird/athird,twenty-fourtwenty-fifths,threeandsixsevenths,onequarter/aquarter/onefourth,ahalf,Canyoureadafraction?,.,July1,1921,October1,1949,August1,1927,May,1922,Whenweretheyfounded?,PRC,League,PLA,CCP,The_wasfoundedon/in_,.,Whatisthetime?,six/sixoclock,fourofive/fivepastfour,sevenfifteen/aquarterpastseven,ninetwenty/twentypastnine,ninethirty/halfpastnine,sixforty/twentytoseven,.,1.Whatistenandeight?2.Howoldareyou?3.Whenwereyouborn?4.Whatclassareyouin?5.Howmanystudentsarethereinyourclass?6.Whatsyourtelephonenumber?7.HowlongistheGreatWall?8.WhatsthepopulationofChina?9.Whendoyouusuallygetup?,Askandanswerinpairs,.,Tryyourbest!speakloudlyandquickly!,test,.,14,40,50,15,17,70,90,19,18,80,60,16,.,Summary(小结),1.基数词的构成（6点）2.序数词的构成（5点，记歌谣）3.基数词的用法(hundred,thousand,million、岁数与年代、“基名”、计量、时刻）4.序数词的用法(加the,a/an)5.编号表示法(可用序数词/基数词,注意加the或大写)6.分数表示法(分子:基数分母:序数)7.年份、日期、的表达法(年:基数日、世纪:序数),.,Homework1、选择题2、默写基数词和序数词3、改