初中英语数词详解及专项练习 7页

Lesson3基数词&序数词一.基数词1.1-10(one,two,three,four,five,six,seven,eight,nine,ten)2.11-19(eleven,twelve,thirteen,fourteen,fifteen,sixteen,seventeen,eighteen,nineteen)3.两位数(非整数)，十位数和个位数之间用连字符(21twenty-one；76seventy-six)4.两位数(整数)，以ty结尾；(40forty；90ninety)4.三位数，在百位数和十位数之间用and连接。101ahundredandone；320threehundredandtwenty；648sixhundredandforty-eight5.百(hundred),千(thousand),百万(million),千万(billion)6•表示确切的百、千、百万时，不能用其复数形式；(400fourhundredshundred不加s)表示成百、成千时，用其复数形式；(成百hundredsof;成千thousandsof)7.表示“人的不确切岁数”，用几十的复数形式；Hebecameaprofessorinhisthirties.(他在三十多岁成为教授。)&表示年代时，用几十的复数形式；Itwasin1960s.(那是在20世纪60年代。)二.序数词1、英语的序数词基木变法:(1)1-19：一般在基数词后加th特殊情况：one—first;two…second;three…third;eight…eighth;nine■一ninth;-ve结尾的改ve为f加th；(如five…fifth；twelve…twelfth)(2)两位数(整数)，改y为・ie,加th；(如twenty…twentieth；thirty…thirtieth)(3)两位数/多位数(非整数)，仅个位数部分用序数词。(如：thirty-sixth,fifty—third,onehundredandtwenty-first)2•缩写形式：阿拉伯数字+序数词末尾两个字母(只有1st,2nd,3rd为特殊形式，其他都是阿拉伯数字+th)first—1st；second—2nd;twentieth—20th;twenty-third-—23rd三、基数词/序数词用法辨别1.基数词也可以表示顺序，要将基数词放在名词之后。thefirstLesson…LessonOne/thefifthpage—Page5\n1.(1)序数词前面加th£时，表示顺序，ThisisthefourthtimeIcomehere.这是我第四次来这儿。(2)加a/an时表示“再一、又一”We，vetrieditthreetimes.Mustvvetryitafourthtime?我们己经试过三遍了，还必须再试一次(第四次)四.时间的数词表示法\n1.表示时刻(1)整点用“o'clock”；(5:00读作fiveo'clock或five)(2)几点过几分，分钟+past+小时；(fivepastseven七点过五分；aquarterpasteight/k点过一刻；halfpasteight/k点半)(3)几点差几分，分钟+to+小时；(tentoeight八点差十分；aquartertotwelve十二点差一亥!I)(4)直接法：小时+分钟；(6:31读作sixthirty-one；10:26tentwenty-six)2•表示日期，用the加序数词表示，或用缩写形式12月1日：Dec.1st或thefirstofDecember2002年11月8日：Nov.8th,2002.3•表示年份，用基数词表示2002读作twentythousandandtwo；1976读作nineteenseventy-six4.表示年代，用the+年代+1/s在20世纪30年代：inthe1930，s或inthe1930s5•表示世纪，用the+序数词+century,或者the+整百+%/s20世纪：the20thcentury或the1900，s/the1900s五、分数/小数/百分数表示法1、分数表示法：基数词作分子，序数词作分母；分子是“1”时，序数词用单数；除此之外，序数词用复数1/3：onethird/athird；1/2：ahalf；1/4：onequarter；3/4：threefourths/threequarters；1—:oneandahalf22•“半”的表达：一半…ahalf；半小时-^halfanhour；1.5小时—>o必andahalfhours或onehourandahalf.3.当分数后接名词时，如果分数值大于1,名词用复数；小于1,名词用单数。oneandahalfhours一个半小时；twoandthreefourthsmeters2.75米3）小数：小数点左边合起来读，小数点右边的数字分开读，小数点读作point10.25tenpointtwofive/1.03——onepointothree4)10.25tenpointtwofive/1.03—-onepointothree4)百分数：用基数词+percent表示50%—fiftypercent；3%threepercent\n1.Excuseme,howdoesthisnumber20,135read?A.twentythousandsonehundredandthirty-five.B.twentythousandonehundredandthirty-five.2.Eachyear,air.A.millionsof专项练习题ItreadsC.twentythousandonehundredandthirtyfive.D.twentythousands,onehundredandthirty-five.fishedarekilledbythepollutedwaterandmanypeoplearemadesickbythepollutedB.millionofC.twomillionsofD.twomillions3.Duringtheseven-dayMayDayholidayfamilieswentsightseeing.A.thousandB.thousandsC.thousandsandthousandsD.thousandsof4.Thebuildinghasfloors-TheyliveonthefloorA.ninth,lastB.nine,nineC・nine,ninthD.nine,tenth1.Thebeautifulskirtsareonshowintheshop.JanelikesA.theninthB.theninethC.nineD.ninth6.Decemberisthemonthoftheyea匚A.twelveB.twelvethC.twelvitthD.twelfth7.1thinkthatthecentury(ti+^3)willbringusmorehopes.A.twenty-oneB.twentiety-firstC.twenty-firstD.twentieth-one7.NowletmehaveA.thethirdtryB.athirdtryC.thirdtryD.thisthirdtry8.MysisterisastudentofA.theFirstClassB.ClassOneC.OneClassD.ClassFirst9.ShakespearewasbominA.1660sB.166(FsC.The1660D.The166(Ts10.HebecameasuperstarA.InhisthirtyB.InhisthirtiesC.AthisthirtyD.Athisthirties12.A.70percentofB.70percentC・70percentofD.70percentsofthestudentsplayQQfarmgamesontheInternet.13.TheOlympicGamesareheldA.EveryfouryearsB.EveryfouryearC.EveryfourthyearsD.Everyfour-years14.NowadaysofbusinesslettersarewritteninEnglish.A.TwothirdB.TwothirdsC.TwothreeD.Secondthree\n综合练习一、单项选择题1.ThegovernmentofChongqingisbuildingcheapandgoodhousesforthepeople.A.ThousandB.ThousandsC.ThousandofD.Thousandsof2.Theteachersaidthatoftheboyswouldtakepartinthetalentshow.A.ThreefiveB.ThreefivesC.ThirdsfifthsD.Threefifths4.1gotabeautifulbikeonbirthday.Ilikeitverymuch.A.FifteenthB.FifteenC.MyfifteenD.Myfifteenth5.ThisisMr.White'svisittoBeijing・Hehasbeentheretwicebefore.A.TwoB.SecondC.ThreeD.Third1.Now,everybody,pleaseturntoPageandlookatthepicture.A.Fifth;fiveB.Five;fifthC.Fifth;fifthD.Five;five2.peoplewenttotheconcertwhichwasheldinPeopledSquarethenightofMayDay.A.Thousandof;inB.Thousand;onC.Manythousand;inD.Thousandsof;on&IthinkofthematerialsIlistenedtoattheverybeginningoftheexameasy.A.Threefourths;isB.Thirdfour;areC.Threefourth;areD.Threefourth;are9.Aboutoftheworkersinthefactorywereborninthe.A.Two-thirds;1970B.Two-thirds;1970sC.Two-third;1970D.Two-third;1970s10.Bob,canyouwritethenumbersevenhundredandeightythousandandthirty-two?Yes.Itis.A.78032B.7832C.7032D.78003211.Ninepoundsaweek?A.hundredofB.hundredsofC.hundredsD.Hundred12.ThemonthoftheyearisFebruary.A.oneB.firstC.twoD.Second13.——Comeandseemein・Withpleasure.That'swhatFmexpecting・A.Twoorthreedays9B.Twoorthreeday'stimeC.Twoorthreedays5time二、阅读理解Somepeoplehaveaverypoorsenseofdirection.Unlucky,Iamoneofthem.IhavevisitedaplacemanytimesbutImaystillgetlosttherethenexttime.WhenIwasalittlegirl,Ineverdaredaskstrangerstheway.AndsoIusedtowalkroundincircleandhopethatbychanceIwouldgettotheplaceIwasgoingto.\nNow,Iamnolongertooshytoaskpeoplefordirections,butIoftenreceivehelplessorevenwronginformation.SoItrytoavoidgivingpeoplewrongdirections.Ifanyoneasksmethewaysomewhere,Iwould,say/sorry,Iamastrangerhere?OnceonmywaytoworkIwasstoppedbyaman.HeaskedmeifIcouldtellhimthewaytotheEriendshipBuilding.Igavehimmyusualreply.ButjustasIwalkedononlyafewsteps.Irealizedthathehadaskedthewaytomyofficebuilding.However,Ihadnotimetoturnbackandlookforhim.IwasrushingtomeetwithsomeoneatmyofficeandIdidn'twanttokeephimwaiting.WhenIjustgottomyoffice,thesecretaryshowedinthemanwhohadaskedmefordirections.ImaginehowembarrassedIwasandhowsurprisedhewaswhenwesaweachotheratthefirstsight!1.Thewriteralwaysrefusestogivepeopledirectionsbecause.A.she'sastrangetothecityB.shedoesn'tknowthepeopleC.shehasnotimetohelpothersD.she'safraidofgivingwrongdirections.2.Amanstoppedthewriteronthewayto“A.sellhersomethingB.askforthetimeC.makefriendswithherD.askforthedirections.3.TheFriendshipBuildingistheplacewherethewriter•A.livesB.studiesC.worksD.teaches4.Theword"embairassed”inthelastparagraphmeansHn-A.尴尬B.困惑C.激动D.拮据5.WhichofthefollowingisTRUEaccordingtothepassage?A.ThewriteristooshytogiveothersdirectionsB.ThewriterhasaverypoorsenseofdirectionsC・Thewriternevergotlostwhenshewasyoung.D.Themanwasquitenervouswhenhesawthewrite匚三、完型填空Manyparentswanttheirchildrentobefamousoneday.Butdochildrenhavethesame_J_?Anew2一—Hi,KefaiisonatBeijingChildren'sArtTheatre.IttellsthestoryofaboycalledKe'ai.Hisparentswouldlikehimtobecomeapainterora3一oneday.Theyteachhimto4andtoplaytheviolin,butKe'aidoesn'tenjoytheseactivities-ThenonedayKe'ai'sparentsseeLiuXiangwinagold5attheAthensOlympicGames,andtheywanthimtobeasportsman.n6dotheywantmetobesomeoneelse?”Ke'aiasksandsays,HIonlywanttobe_7_.HTheplayshowsusthatitisgoodforparentstolearnto_8_theirchildren.Ithelpsparentstothinkaboutwhatkidswanttodo.Youngaudiences（观众）enjoythestory,andalsothe9intheplay.Therearetwosongsintheplay.Oneofthem,nKe,ai,sSongHisvery10tolearn,sotheaudiencescansingthesongontheirwayhomeaftertheplay!1.A.jobsB.dreamsC.habitsD.hobbies2.A.songB.filmC.playD.opera3.A.writerB.teacherC.sportsmanD.musician4.A.paintB.writeC.runD.drive5.A.matchB.ringC.medalD.race6.A.HowB.WhyC.WhenD.Where7.A.myselfB.differentC.aloneD.great&A.encourageB.understandC.criticizeD.inspire\n9.A.lightB.clothesC.skillD.music10.A.easyB.difficultC.importantD.necessary