初中英語數(shù)詞專項

初中英語數(shù)詞專項初中英語數(shù)詞專項初中英語數(shù)詞專項資料僅供參考文件編號：2022年4月初中英語數(shù)詞專項版本號：A修改號：1頁次：1.0審核：批準:發(fā)布日期：數(shù)詞講解專項練習1數(shù)詞的講解一、定義：表示數(shù)目或順序二、分類：分為基數(shù)詞和序數(shù)詞兩種。表示數(shù)目或數(shù)量多少的詞叫基數(shù)詞；表示數(shù)目順序的詞叫序數(shù)詞。三、基數(shù)詞的構(gòu)成：1）1-12的基數(shù)詞是獨立的單詞，即：one，two，three，four，five，six，seven，eight，nine，ten，eleven，twelve。2）13-19的基數(shù)詞以-teen結(jié)尾。如：fourteen，seventeen等，但13，15，18較特殊，13—thirteen,15—fifteen,18—eighteen。3）20-90的整十位均以-ty結(jié)尾。如：sixty，ninety，但20，30，40，50，80較特殊，20—twenty,30—thirty,40—forty,50—fifty,80—eighty。4）十位數(shù)與個位數(shù)之間要加連字符號"-"，如：28-twenty-eight，96-ninety-six。5）百位和十位（若無十位則和個位）之間加and，如：148—onehundredandforty-eight406—fourhundredandsix6）hundred（百），thousand（千），million（百萬），billion（十億）等前面即使有具體的數(shù)詞，several,some,many也不能在它們的后面加-s。如：sixhundred，eightmillion。如果表示不確定數(shù)目時，用hundredsof/thousandsof/millionsof/billionsof+名詞復數(shù),前面不能再加數(shù)字。7）1000以上的數(shù)字，從后往前數(shù)每三位加一個逗號"，"第一個逗號前為千（thousand），第二個逗號前為百萬（million），第三個逗號前為billion（十億）。英語中無“萬”這個詞，我們可以用"幾十個千（thousand）"表示幾萬，"幾百個千（thousand）"表示"幾十萬"。如：2，510＝twothousandfivehundredandten84，296＝eighty-fourthousandtwohundredandninety-six274，350＝twohundredandseventy-fourthousandthreehundredandfifty。四、序數(shù)詞的構(gòu)成：1）序數(shù)詞一般是以與之相應的基數(shù)詞尾加-th構(gòu)成，如：fourth,tenth,但以下的這些基數(shù)詞變?yōu)樾驍?shù)詞時，有特別之處。One—first,two—second,three—third,five—fifth,nine—ninth,twelve—twelfth2）以_ty結(jié)尾的單詞，要先變y為i,在加-eth.。如：thirty—thirtieth,fifty—fiftieth3）以one,two,three等結(jié)尾的多位數(shù)詞，要將個位數(shù)變成序數(shù)詞。如：twenty-one—twenty-first,onehundredandone—onehundredandfirst注意：序數(shù)詞前常用定冠詞，有時還可以用不定冠詞a/an則表示"又一"的意思。（沒有具體范圍的限制）如：Mr.Brownhasasecondcar.布朗先生另外還有一輛車。Hehastriedasecondtime.他又嘗試了一次。五、數(shù)詞的應用1)時刻的表示:小時、點鐘、分鐘、秒鐘要用基數(shù)詞。①“幾點鐘”用基數(shù)詞加o'clock。o'clock可省略。如:5點鐘-five(o'clock)②“幾點過幾分”,≤30分鐘"用介詞past。如:7:15—fifteen/aquarterpastseven7:30—halfpastseven③“差幾分幾點”用介詞"to"。如:7:40—twentytoeight7:45—fifteen/aquartertoeight。④日常生活中的時間讀法常常簡化,直接按基數(shù)詞的順序讀。如:7:05—sevenofive7:15—sevenfifteen。2)年月日的表示:①年份用基數(shù)詞,如:1999年—nineteenninety-nine1900年—nineteenhundred2000年—twothousand1905年—nineteenofive;②年用基數(shù)詞,日用序數(shù)詞。如:1998年6月8日寫作:June8,1998;讀作:Junetheeighth,nineteenninety-eight或theeighthofJune,nineteenninety-eight。3)世紀、年代表示法,如:(在)90年代(in)thenineties(在)19世紀(in)thenineteenthcentury(在)18世紀30年代(in)the1730s或inthe1730's4)編號的表示:①基數(shù)詞放到名詞的后邊,該名詞一般要大寫;序數(shù)詞放到名詞的前面,加定冠詞。Lesson1/thefirstlesson第一課Row3/thethirdrow第三排②BusNo.3=theNo.3bus3路公共汽車。③表示住所時不用No.如:Room302讀作:roomthreeotwo302房間。④如果編號的數(shù)詞比較長,一般用基數(shù)詞。如:Page457第457頁。⑤電話號碼,用基數(shù)詞,如:3855633-threeeightdoublefivesixdoublethree。5)分數(shù)的表達:分子用基數(shù)詞,分母用序數(shù)詞,分子大于"1",分母則加"s"。如:1/3onethird2/3twothirds1/2a/onehalf1/4onefourth或a/onequarter3/4threefourths或threequarters6)表示有小數(shù)的詞用基數(shù)詞,如:5.5fivepointfive12.135twelvepointonethreefive7)表示百分數(shù),如:5℅:fivepercent0.8℅zeropointeightpercent注意:分數(shù)、百分數(shù)與主謂一致當分數(shù)、百分數(shù)修飾可數(shù)名詞的復數(shù)時,謂語動詞用復數(shù)形式;當分數(shù)、百分數(shù)修飾不可數(shù)名詞時,謂語動詞用單數(shù)形式。如:EightypercentofthestudentsinourschoolcomefromHenan.我們學校百分之八十的學生來自河南。ThreefourthsofthestudentsinmyclassareinterestedinEnglish.我們班四分之三的學生對英語感興趣。Twothirdsofthewaterontheearthisseawater.地球上三分之二的水是海水。8)其他用法,如:①基數(shù)詞+單數(shù)名詞+形容詞構(gòu)成合成形容詞。如:afive-year-oldboy一個五歲的男孩an800-metre-longbridge一座800米長的橋girls’400-metrerelayrace女子400米接力②具體數(shù)詞+metre(s)/kilometre(s)/kilo(s)long/high/tall/deep/away等。如:TheChangjiangRiveris6,300kilometreslong.長江長6300公里。③表示“幾十歲”用基數(shù)詞的復數(shù)形式,如:inhisthirties在他三十幾歲時④倍數(shù)的表達:一倍用once,兩倍用twice,兩倍以上用基數(shù)詞+times。如:fivetimes5倍補充:倍數(shù)的表示法:1.表示“幾倍大小(長短;數(shù)量)”,由“倍數(shù)+thesize(length,amountwidthageheight.)+of”結(jié)構(gòu)組成。如:Theearthisforth-ninetimesthesizeofthemoon.地球的大小是月亮的四十九倍。2.表示“??比??大幾倍”,由“倍數(shù)+形容詞(副詞)比較級+than+被比較部分”結(jié)構(gòu)組成。如:Thisboxisthreetimesbiggerthanthatone.這個箱子比那個箱子大三倍。(這個箱子是那個箱子的四倍。)數(shù)詞練習()1.Everyyear,_____peoplegotovisittheirfactoryA.athousandofBthousandsC.thousandofD.thousandsof()2.Tomhasjustfinishedwritinga_________article.A.nine-hundred-wordsB.nine-hundreds-wordC.nine-hundred-wordD.nine-hundreds-words()3._______peoplelosttheirhomesinJapan’searthquake.A.TwothousandsB.ThousandC.ThousandsofD.Thousandof()4.Lastyear,IvisitedachemicalfactoryinBaise,thereareabout_____workersinit.sixthousandsB.sixthousandC.sixthousandsofD.sixthousandof()5.About_______ofthestudentsinourclasswereborninthe_____.A.two-thirds,1990sB.two-thirds,1990C.two-third,1990sD.two-third,1990()6.NowadaysofbusinesslettersarewritteninEnglish.A.twothirdB.twothirdsC.twothreeC.secondthree()7.—Ifa=4,b=5,what’stheanswertothequestion“a+2ab+1=”

—A.Forty-fifthB.Forty-fiveC.Twenty-threeD.Onehundredandtwenty-one()8.—Howoftendoyouexercise?

—_________aweek.A.TwoB.TwiceC.SecondD.Three()9.Theteachersaidthat__oftheboyswouldtakepartinthetalentshow.A.threefiveB.threefivesC.thirdsfifthsD.threefifths()10.Tomorrowistheboy’s________birthday.A.seventhB.sevenC.seventeenD.aseventh()11.—Whichisthebiggestnumberofthefour?

—.A.One-thirdB.Two-thirdsC.AhalfD.Aquarter()12.—Excuseme,wherecanIbuyajacket?—YoucangototheMen'sWearSectiononthe_________floor.A.twoB.twiceC.secondD.three()13.___ofthelandiscoveredwithtreesandgrassinPingjiang,Yueyang.A.ThreefivesB.ThreefifthsC.ThreefifthD.Threesfifth()14.Septemberis_____monthoftheyear.A.ninthB.nineC.thenineD.theninth()15.—Howwasyourdayoffyesterday?

—Perfect!Itwasmygrandma’s________birthday.Wehadabigcake.A.eightyB.eightiethC.theeightiethD.theeightieth()16.—Excuseme,howcanIgettothemuseum?

—Sorry.It'smy______timetobehere.A.oneB.firstC.onceD.two()17.Youcansee_______ifyougooutatnight.A.millionstarsB.thousandofstarsC.hundredsstarsD.millionofstars()18.—Isthisyour________visittomyhometown,Zunyi

—No.I’vebeenhereformanytimes.A.oneB.thefirstC.firstD.twice()19.Morethanninestudentsaredoingsportsnow.A.hundredsB.hundredofC.hundredD.hundredsof()20.Now,everybody,pleaseturntoPage________andlookatthe________picture.A.Fifth;fiveB.Five;fifthC.Fifth;fifthD.Five;five()21.Forbreakfast,Iusuallyhave______andtwopiecesofbread.A.acupofmildhalfB.halfacupofmilkC.ahalfmilkcupD.halfamilkcup()22.ThegovernmentofChongqingisbuilding_______cheapandgoodhousesforthepeople.A.thousandB.thousandsC.thousandofD.thousandsof()1.Thereareabout________studentsinourschool.A.twothousandofB.twothousandsC.twothousandsofD.twothousand()2.Thereare________studentsinourgrade.A.threehundredsandforty-fiveB.threehundredandfortyfiveC.threehundredforty-fiveD.threehundredandforty-five()3.Sundayis________dayoftheweek.A.thefirstB.oneC.heseventhD.theseven()4.Pleasecometomyoffice________.A.athalfpasteightB.athalfpassedeitherC.inhalfpasteightD.onhalfpasteight()5.Ifyouwanttogotothecinema,take________.A.busNo.theninthB.theNo.9busC.No.9thebusD.No.theninthbus()6.TheGreenscametoChina________.A.in1984October27B.inOctober27,1984C.on27,1984OctoberD.onOctober27,1984()7.Thestorytookplacein________.A.nineteencenturiesB.nineteencenturyC.thenineteenthcenturyD.nineteenthcentury()8.IwastoldtheywouldstayinChinafor________.A.oneandahalfyearsB.oneandahalfyearC.oneandhalfyearsD.onehalfandoneyear()9.Tomorrowwearegoingtolearn________.A.LessonSecondB.theLessonTwoC.LessonTwoD.secondlesson()10.Ithinkthatthefirstdayofspringis________.A.twenty-twoofMarchB.twenty-secondonMarchC.twenty-twoinMarchD.thetwenty-secondofMarch()11.________letteroftheword“restaurant”is“n”.A.TheninethB.NinethC.TheninthD.Ninth()12.Wetalkedfor________.A.halfahourB.halfhourC.anhourhalfD.halfanhour()13.Thebuswillleaveat________thisafternoon.A.threefifteenB.threeandfifteenC.threequartersD.fiftytothree()14.Theearthis________thesizeofthemoon.A.49thetimesB.49timesC.49timeD.fourty-ninetimes()15.It’sa________ruler.A.two-feet-longB.twofeetlongC.two-foot-longD.two-foot-long()16.________studentsareplantingtrees.A.SeveralhundredsB.SeveralhundredC.FivehundredsD.Fivehundredof()17.________tofinishquickly.A.NoeverystudentwantsB.NoeverystudentwantC.NoteverystudentwantsD.Noteverystudentwant()18.________ago,ourcountrywascoveredbythickforests.A.SeveralmillionofyearB.SeveralmillionyearC.SeveralmillionyearsD.Severalmillionofyears()19.Theweightofthemoonisonlyabout________ofthatoftheearth.A.oneeightyB.oneofeightyC.onetheeightiethD.oneeightieth()20.It’s11:45.Yes,it’s________.A.fifteenpasttwelveB.fifteenfromtwelveC.aquarterpasteightiethD.aquartertotwelve()21.WhatdateisitIt’s________.A.Julytwentieth-firstB.ofJulytwenty-firstC.thetwenty-firstofJulyD.aquartertotwelve()22.________,pleaseItwasApril25th.A.HowoldareyouB.WhatwasthedateyesterdayC.WhattimewasitD.Whatdayisittoday()23.Ihave________thingstodo.Ican’tplay________.A.many,nomoreB.alotof,anymoreC.much,moreD.much,anymore()24.Ihavea________paperonmydesk.A.littleB.lotC.lotsD.littleof()25.Thisis________.A.thequestionthirtyB.thequestionthirteenC.thirtyquestionD.questionthirteen()26.________oftheworkhasbeendone.A.TwothirdB.TwothreeC.TwothirdsD.Twothird()27.It’s________now.Let’shurry.A.halfpassedsixB.thirtypassedsixC.halfpasssixD.halftoseven()28.What’sthedatetodayIt’s________.A.theJunefourthB.thefourthofJuneC.ofJunethefourthD.fourthJune()29.Nextweekwe’regoingtolean________.A.unit5B.theunit5C.Unit5D.5Unit()30.DoyouhavemuchworktodothisweekendYes,Ihavetowritea________paper.A.two-thousand-wordB.two-thousand-wordsC.two-thousands-wordD.two-thousands-words()31.Thetreeis________tall.A.forteenfeetB.fourteenfeetC.fourteenfootD.fourtyfoot()32.Fiftyplus________.A.fourtyisninetyB.fortyisninetyC.thirtyisninetyD.fourtyisninety()33.Thereare________studentsinthisschool.A.fourhundredfifty-twoB.fourhundredsfifty-twoC.fourhundredandfifty-twoD.fourhundredandfiftytwo()34.Myhomeisabout________awayfromtheschool.A.threehundredmetreB.threehundredsmetresC.threehundredmetresD.threehundredsmetre()35.Decemberis________andlastmonthisayear.A.thetwelvethB.twelvethC.thetwelfthD.twelfth()36.________oftheteachersintheschoolarefromcolleges.A.ThreequartersB.Two-thirdC.TwofifthD.Two-nineths()37.Therearetwoworldwarsduring________century.A.thetwentiesB.thetwentiethC.twentiesD.twentieth()39.Intheforties,hisfatherservedintheNew________Army（新四軍）,whilethismotherworkedinthe________RouteArmy.（八路軍）A.thetwenty-firstlessonB.LessonTwentyFirstC.the21thlessonD.Lesson21th()40.Hewillstayherefor________.A.oneandhalfmonthB.oneandahalfmonthC.onemonthsandhalfD.oneandahalfmonths()41.What’sthedatetodayIt’s________.A.nineB.MondayC.June5D.11:00()42.Wouldyouliketoeat________applesNo,thankyou.A.moretwoB.twomoreC.twoanotherD.twoelse()43.Hesaidhewouldcomebackin________.A.oneortwodaysB.aortwodaysC.oneandtwodaysD.adayandtwo()44.Howoftendoyouwritetoyourparentsabroad________.A.TwiceamonthB.SecondtimesamonthC.AsecondtimeamonthD.Secondatimeamonth()45.________peoplediedinthetrafficaccidentsintheworld.A.ThousandofB.ThousandsofC.TenthousandsofD.Tenthousandof()46.WhatisthetimeIt’s________.(4:25)A.fourtwenty-fiveB.fourpasttwenty-fiveC.twenty-fivetofourD.fourtwentyfive()47.Mr.Smithliveson________floor.A.fivethB.fifthC.thefivethD.thefifth()48.HebegantolearnEnglishinhis________.A.fiftyB.fiftiethC.fiftiesD.fifth()49.Hissisterwasborn________.A.in1998,October21B.on1998,October21C.inOctober21,1998D.onOctober21,1998()50.Whenhewas________,helefthometoworkindifferentcities.A.inhistwentyB.athistwentyC.inhistwentiesD.athistwenties()51.I’m________thanyou.A.fiveyearsolderB.fifteenyearoldC.fifteenyearsD.fifteenold()52.HowoldareyouI’m________.A.fifteenyearsoldB.fifteenyearoldC.fifteenyearsD.fifteenold()53.Howmanyteachersarethereinyourschool________,butI’mnotsure.A.HundredsB.HundredC.HundredsD.Onehundred()54.About________ofthebooksinourschoollibraryarewritteninChinese.A.four-fifthB.four-fifthsC.fourth-fifthsD.fourths-fifth()55.Theyplanted________treesonthefarmlas