中考九年级英语复习中考语法常考要点与练习专题6数词.ppt

专题六数词,专题六数词,考点直击,考点1数词的分类,数词分为基数词和序数词。表示数目多少的数词叫基数词。如：one(一),two(二)。表示顺序次第的数词叫序数词。如：thefirst(第一),thesecond(第二)。,专题六数词,考点2基数词的构成,1112独立成词，需逐个记忆。21319的基数词以teen结尾。尤其要注意thirteen,fifteen,eighteen的正确拼写。3表示“整十”的基数词(2090)都以ty结尾。其中特别要注意twenty,thirty,forty,fifty,eighty,ninety的正确拼写。42199的写法是“十位数个位数”，中间用连字符号“”连接。如：36thirtysix97ninetyseven,专题六数词,5101999的构成是百位数和十位数之间用and连接。如：601sixhundredandone755sevenhundredandfiftyfive注意hundred,thousand,million,billion等词前有具体数字时，不能加s；无具体数字时，要加s且与of连用。,专题六数词,6四位数或者四位数以上的基数词的拼写规律：从右往左每三位加一个逗号，第一个逗号读作千(thousand)，第二个逗号读作百万(million)，第三个逗号读作十亿(billion)。如：94，295读作ninetyfourthousandtwohundredandninetyfive。7“基数词more”与“another基数词”意义相同，表示“再，另外”。,【例题解析】,ThankstoProjectHope,_childrenhavebetterlives.A.thousandsofB.thousandsC.thousand,解析A考查数词用法。表示确数时，记数单位，如hundred,thousand，不用复数形式。表示概数时，通常用复数形式，其后加of。,专题六数词,专题六数词,【典型例题训练】,()1.Guanganisabeautifulcity,isntit?Yes.Thereareabouttwo_visitorshereeveryweek.AthousandsofBhundredsCthousandDhundredsof()2.PleaseturntoPage_andlookatthe_pictureinthisunit.Atwentieth;oneBtwenty;oneCtwentieth;firstDTwenty;first,C,D,专题六数词,考点3序数词的构成,1序数词多数是由“基数词th”构成。如：sixsixthsevenseventh2以y结尾的整十的数词，先将y改为ie，再加th。如：twentytwentiethseventyseventieth320以上的非整十的数词，将末位数(即个位数)改为序数词，其他的位数仍用基数词。如：twentyonetwentyfirstthirtytwothirtysecondtwohundredandninetyeighttwohundredandninetyeighth,专题六数词,4少数的序数词属于特殊情况。如：onefirsttwosecondthreethirdfivefiftheighteighthnineninthtwelvetwelfth5序数词的缩写形式由阿拉伯数字加序数词最后的两个字母构成。如：first1stsecond2ndthird3rdseventh7th记忆小技巧基数词变序数词歌基变序，有规律，词尾加上th；一、二、三，特殊列，结尾字母t，d，d(first,second,third);8去t(eighth),9去e(ninth)，ve要用f替(fifth,twelfth);遇y变ie，然后再加th(twentieth);遇到“几十几”，只变个位就可以(twentyfirst)。,专题六数词,考点4年份/年代、日期、时刻的表达法,1年份/年代表达法：年份要用基数词。如：1999nineteenninetynine2日期表达法：日期要用“月日的序数词”表示。如：7月2日写作July2nd8月23日写作August23rd3时刻表达法：表示时间有两种方法，一是顺读法，读作“钟点数分钟数”。二是倒读法，在前半小时中，读作“分钟数past(过)钟点数”；在后半小时中，读作“(60分钟数)to下一个钟点数”，半个小时时，读作“halfpast钟点数”，一刻钟为quarter。如：eightthirtyfive8点35分tenpasttwo2点10分fifteentosix5点45分halfpastfive5点30分aquartertofive4点45分,专题六数词,考点5分数的表达法,记忆小技巧分子基数词，分母序数词；分子大于1时，分母加s。如：1/3onethird4/5fourfifths,【例题解析】,LiJiachengplanstogive_ofhismoneytothecharity.Really?Whatakindmanheis!A.onethirdB.onethreeC.onethirds,解析A英语中分数的表达法：基数词作分子，序数词作分母。分子大于1时，分母用复数形式。故答案为A。,专题六数词,专题六数词,【典型例题训练】,()1.ThreestudentsranfasterthanLilyintherace.SoLilywas_AthefourthBfourCthethirdDthree()2.Thereare_teachersinourschool,and_ofthemarewomenteachers.Atwohundreds;threefourthBtwohundred;threefourthsCtwohundred;threeforthsDtwohundreds;threefourths,A,B,专题六数词,巩固练习,一、单项选择()1.Thisroomis_thatone.A.threetimesaslargerasB.threetimesthesizeofC.threetimeslargeD.threetimeaslargeas()2.Thelostofmachinewasreducedby_A.20percentB.20thpercentC.percent20D.percent20th()3.Arethereenoughbooksfor_？A.threeusB.usthreeC.allusD.thethreeus,B,A,B,专题六数词,()4.About_oftheteachersintheirschoolarewomen.A.twothreeB.twothreesC.twothirdsD.secondthird()5.Theyarrivedattheairportby_twoandthreeB.threeandtwoC.twosandthreesD.threesandtwos()6.Whatsthetimenow?Its_A.fortytwotofiveB.thirtyonepastnineC.sixtofortyD.threetoseven,C,C,D,专题六数词,()7.Thereare_studentsatthesportsmeeting.A.tensofthousandsofB.fivehundredsofC.severalhundredofD.fivethousands()8.Whatsthedatetoday?Its_A.theJulyfourthB.thefourthofJulyC.JulythefourD.onthefourthofJuly()9.Thisproblemistoodifficultfora_boy.tenyearsoldB.tenyearoldC.tenyearoldD.tenyearold,A,B,B,专题六数词,()10.Themeetingwillbeholdin_102RoomB.NO.102RoomC.Room102ndD.Room102()11.Everymonthhespendsalarge_ofmoneyonbooks.A.dealB.amountC.numberD.piece()12.Whenhegottoschool,hewas_A.fiveminuteslateB.fiveminuteslaterC.fiveminutelateD.fiveminuteslate,A,D,B,专题六数词,()13.Iwasborn_A.inhersixtiesB.inearlysixtiesC.inthesixtiethD.inthesixties()14.Hefinisheduniversityin_twentyB.twentiesC.earlytwentiesD.hisearlytwenties()15.Theoldmanbought_eggs.threescoreB.threescoresC.threescoresofD.scoresthree,D,D,A,专题六数词,()16.Hewrote_articleoncomputer.A.a800wordB.800wordsC.800wordD.an800word()17.Theboyhad_sheeptofeed.A.alotofB.alargeamountofC.agreatdealofD.agreatmanyof()18.Thepolicetalkedtohimbecausehewas_toenterthehallandthelasttoleave.A.No.OneB.oneC.thefirstD.first,C,A,D,专题六数词,()19.Everyyear_studentsfromthisschoolaresenttoBritaintolearnEnglish.sixdozenB.sixdozensC.sixthdozenD.sixthdozenof()20.Therere30girlsinourclass._arefromthecountry.A.ThreetheyB.ThethreeofthemC.ThreeofthemD.Allthreeofthem,C,A,专题六数词,二、用所给数词的适当形式填空1Myfatheris_(四十)yearsold.2Thelittlegirlcancountfromonetoone_(百).3Intheirfactorytherearethree_(千)workers.4Hewasborn