數(shù)詞：定義：和數(shù)字相關(guān)的詞分詞：①基數(shù)詞②序數(shù)詞③其它數(shù)詞（小數(shù)、分?jǐn)?shù)、百分?jǐn)?shù)）基數(shù)詞構(gòu)成：（1）0-12zero,one,two,three,four,five,six,seven,eight,nine,ten,eleven,twelve（2）13-19，-teen：thirteen,fourteen;fifteen;sixteen;seventeen;eighteen;nineteen整十，-ty:twenty,thirty,forty,fifty,sixty,seventy,eighty,ninety幾十幾，-：twenty-one;thirty-two多位數(shù)表達(dá)：hundred,thousand,million,billion,trillion練：1.—How

many

people

were

invited

to

the

meeting?—About

six_____________.

.

A.hundredB.

hundredsC.

hundred

ofD.

hundreds

of2.Inourcity,____________peoplehavemovedintotheirnewhouses.A.thousandB.twothousandsC.thousandsofD.manythousand要點(diǎn)提醒：①單位的用法：基數(shù)詞+單元“具體數(shù)量” 單位復(fù)數(shù)+of“大概，不確切的數(shù)量”以thousand為例：Threethousand“三千”Iloveyouthreethousandtimes.我愛你三千遍。Thousandsof“成千上萬；數(shù)萬”thousandsofvisitors成千上萬的游客注意several“幾個(gè)”相當(dāng)于一個(gè)數(shù)字，單位和它連用，不用復(fù)數(shù)severalthousand“幾千”②百位與十位；若十位沒有，只有個(gè)位，則百位與個(gè)位；之間要用and連接E.g.365:threehundredandsixty-fiveE.g.705:sevenhundredandfive運(yùn)用表示數(shù)量、長(zhǎng)度、重量、距離g.Ihavetwoeldersisters.Theriveriseighthundredmeterslong.年齡e.g.herbrotheris20/20yearsold.Attheageof20“在20歲的時(shí)候”Whensbbe20“在某人20歲的時(shí)候”Inone’s整十復(fù)數(shù)“在某人幾十多歲時(shí)”ShemovedtoChongqinginherthirties.她在三十多歲時(shí)搬到了重慶。易錯(cuò)點(diǎn)：18yearsold“18歲”year-old“18歲的”18-year-olds“18歲的人”年份、年代e.g.in2021“在2021年”“inthe+年份的復(fù)數(shù)”表示在幾十年代；“inthe+年代’s/年代s”表示在幾世紀(jì)幾十年代.Inthe1970s/1970’s“在20試卷70年代”日期月日，年（美國(guó)）；日月，年（英國(guó)）1995年6月1號(hào)寫作：June1st,1995讀作：Junethefirst,nineteenninety-five時(shí)間E.g.(1)“幾點(diǎn)鐘”用基數(shù)詞加o'clock。o'clock可省略。如：5點(diǎn)鐘—five（o'clock）(2)“幾點(diǎn)過幾分”，（≤30分鐘）在分鐘后加介詞“past”，再加小時(shí)。例：7：05—fivepastseven；7：15—fifteen（aquarter）pastseven(3)“差幾分幾點(diǎn)”(>30分鐘)，在分鐘后加介詞“to”再加小時(shí)。例：7：40—twentytoeight；7：45—fifteen（aquarter）toeight日常生活中的時(shí)間讀法常常簡(jiǎn)化，直接按基數(shù)詞的順序讀。例：7：05—sevenofive；7：15—sevenfifteen(5).若想表明是上下午：a.m.表示上午，p.m.表示下午練：寫出下列時(shí)刻的讀法：1:15______________________________2:30_____________________________3:45__________________________7:20______________________________倍數(shù)、次數(shù)Once“一倍、一次”；twice“兩倍、兩次”；兩倍，兩次以上用基數(shù)詞+timesThreetimes,fourtimes編號(hào)e.g.TodaywearegoingtolearnLessonone.ShelivesinRoom801.練：1.________,Coca-ColabegantoenterChina’smarket.A.In1970’sB.In1970sC.Inthe1970s’D.Inthe1970s2.Shakespearewasbornin_______.A.1660sB.1660’sC.the1660D.the1660’s3.Hestartedacompany_______.A.inhistwentyB.inhistwentiesC.athistwentyD.athistwentieth4.Whichroomdoyoulivein?__________.A.The201Room

B.Room201

C.Room201st

D.The201'sRoom5.Whichlessondidyoulearnyesterday?__________.A.LessonSeven

B.Lessonseventh

C.The7Lesson

D.7Lesson序數(shù)詞定義：表示事物順序的數(shù)詞構(gòu)成：（1）1-3：first,second,third（2）4-19，加-th,注意：5,8,9,12：fourth;fifth;eighth;ninth;twelfth（3）20及以上整十，y-ieth:twentytwentieth;幾十幾，只將個(gè)位改變就可以：forty-fiveforty-fifth口訣：口訣：基變序，有規(guī)律，一、二、三，特殊記；八加h，九去e，ve要用f替；逢十變y為ie，再加th；若變幾十幾，只變個(gè)位就可以縮寫：阿拉伯?dāng)?shù)字+最后兩位E.g.first1st;second2nd;third3rd;fourth4th運(yùn)用表示順序，其后接名詞單數(shù)e.g.thesecondunit=UnitTwoThethirdpage=PageThree易錯(cuò)點(diǎn)：序數(shù)詞前要加the；但若序數(shù)詞前有“...的”就不加thee.g.thefirststudent;myfirststudenta/an+序數(shù)詞“另一個(gè)，再一次”Canyougivemeasecondchance.你能再給我一次機(jī)會(huì)嗎。用在最高級(jí)前，“第...個(gè)最...的事物”e.g.Lucyisthesecondmostpopularstudentinourclass.日期2021年12月12日： December(the)twelfth,twentytwenty-onethetwelfthofDecember,twentytwenty-one練習(xí)：1.Hewrotehis______novelwhenhewas______.A.five;fifties B.fifth;fifty C.fifth;fiftieth2.--Howwasyourweekend?--Great!Itwasmygrandfather's_________birthday.Weenjoyedourselves.A.seventy B.seventieth C.theseventiethD.seventeenth3.Thereare________daysinaweekandTuesdayis________dayoftheweek.A.seven,thirdB.seven,thethirdC.seventh,threeD.theseventh,three其它數(shù)詞（分?jǐn)?shù)、百分?jǐn)?shù)、小數(shù)）分?jǐn)?shù)構(gòu)成：分子用基數(shù)，分母用序數(shù)；分子大于1，分母用復(fù)數(shù)。e.g.2/3twothirds運(yùn)用：“分?jǐn)?shù)of+名詞”做主語(yǔ)，動(dòng)詞的單復(fù)數(shù)由of后的名詞決定E.g.Twothirdsofthewaterontheearthisseawater.地球上2/3的水是海水。百分?jǐn)?shù)構(gòu)成：數(shù)詞+percent注：percent為單復(fù)同形，所以不可在其后加se.g.67%sixty-sevenpercent運(yùn)用：“百分?jǐn)?shù)of+名詞”做主語(yǔ)，動(dòng)詞單復(fù)數(shù)由of后的名詞決定E.g.AboutthirtypercentofthestudentsareinterestedinEnglish.大約有30%的學(xué)生對(duì)英語(yǔ)感興趣。小數(shù)構(gòu)成與讀法：正常基數(shù)詞讀法point一位一位地讀e.g.98.56ninety-eightpointfivesix練習(xí)：一1.--Howoldisyourdaughter?--_________.Wehadaspecialpartyforher_________partyyesterday.A.Nine,nine B.Nine,ninth C.Ninth,ninth2.It’ssaidthat_________ofthewateraroundtheworld_________polluted.A.twothird;has B.twothirds;have C.twothird;are D.twothirds;is3.Weplanted________treeslastyear.A.hundredsofB.hundredofC.fivehundredsD.fivehundredof4.Linda’smotherlooksyoung,butactuallyisinher________.A.sixties B.sixtieth C.sixtyyearsold5.Decemberis___________monthoftheyear.A.twelve B.thetwelfth C.thetwelveth6.Thewinnerofthesingingcompetitionwasa___girlcalledZhangMeifromChina.A.19-years-old B.19-year-old C.19-year-olds7.--Whendidyoustarttocollectstamps?--Igotmy______stampwhenIwas______yearsold.A.one;seven B.one;seventh C.first;seventh D.first;seven8.It’sthe___timeformetovolunteerinahospital.Idon’tknowanythingaboutit.A.first B.second C.third D.last9.aes g.Sheseryhappyatchoo.A.aeheeneaodB.aneheeeaod C.aneheeneasodD.aeheen–easod10.onhhea,eeedheeie,andaerdnnerelry e.A.heouhB.aouh C.ouh D.our[來11.--WhereisClass___________?--It’sonthe_________floor.A.Six;third B.Sixth;third C.Six;threeD.Sixth;three12.Thenumberofthecarsinourneighborhoodisabouteight___and____ofthemarenewcars.A.hundred;twothirdsB.hundred;twothirdC.hundreds;twothirds D.hundreds;twothird13.--Excuseme,sir.Here’sapackageforLinTao.Whichroomdoeshelivein?--_________.A.308Room B.Room308 C.TheRoom308 D.The308Room14.--Whatshouldwedonow?--PleaseturntoPage_______andlookatthe_________picture.A.Twelve;fifth B.Twelfth;fifthC.Twelve;fiveD.Twelfth;five15.Mother’sDayisonthe__________SundayinMayeveryyear.A.two B.second C.six D.sixth16.It’stheboy’s________birthdaytoday.Heisfiveyearsold.A.fifteen B.fifth C.five17.Unit_____iseasybut______unitisdifficult.A.Sixth;seven B.Six;seven C.Sixth;theseventh D.Six;theseventh二1.Teachers'DayisinSeptember,the_________monthoftheyear.A.nine B.ninth C.ten D.tenth2:(2020)百"色)Theenvironment-herebecomes.betterandbetter._________birdsarecomingback.A.Hundred B.Hundreds C.Thousand D.Thousandsof3.(2020·丹東)ThewordsfromPage1toPage3areveryclear.Buttheonesonthepagearenot.A.first B.two C.three D.fourth4.(2020·鎮(zhèn)江)PengMinfinallybecamethewinnerof_________seasonofCCTV'sChinesePoetryConference.A.five B.fifth C.thefifth D.fifths5.(2020·畢節(jié))Hisofficeisatthetopofthetallbuilding.Youshouldtakealiftto-the_________floor.A.first B.thirtieth C.thirty D.thirteen6.(2020·黔東南)--Dear,howisyourhomeworkgoing?-Oh,mom,I'vejustfinished_________ofit.A.secondthree B.twothird C.secondthrees D.twothirds7.(2020·遂寧)Theyworkedfor_________days,andfinishedthe_________tasksuccessfully.A.twelve;two B.twelve;second C.twelfth;two D.twelfth;second8.(2020·達(dá)州)--It'ssaidthatthetwo______doctorshavejustcomebackfromWuhan.-Yeah.Iknowthem.Theyarebothalreadyintheir_________.A.woman;sixty B.women;sixtieth C.women;sixtiesD.woman;sixties9.(2020·鄂州)Becauseofthespecialsituationthisyear,about_________ofthestudentsinourschool_________havingclassesontheInternetathome.A.twothirds;are B.twothird;is C.secondthirds;areD.twothirds;is 10.(2020·黔南)Tomorrowwearegoingtocelebratemydeargrandpa's_____birthday.A.eighty B.eightieth C.eight D.eighth11.(2020·濱州)--Ilikethenumber"9"be