數(shù)詞第一節(jié)數(shù)詞的分類Thereare______U.S.presidentsfromthisuniverstiy.HarvardUniversityis______mostfamousuniversityintheworld.thefirst8序數(shù)詞基數(shù)詞分類基數(shù)詞序數(shù)詞表示數(shù)目多少的詞表示順序先后的詞第二節(jié)基數(shù)詞一、基數(shù)詞的構(gòu)成一、基數(shù)詞的構(gòu)成1.基數(shù)很容易

1-12單獨記1one,2two,3three,4four,5five6six,7seven,8eight,9nine,10ten11eleven,12twelve2.十幾teen

加幾后面13thirteen,14fourteen,15fifteen16sixteen,17seventeen,18eighteen

19nineteen3.幾十ty幾后安20twenty,30thirty,40fourty50fifty,60sixty,70seventy80eighty,90ninety一、基數(shù)詞的構(gòu)成4.若要表示幾十幾，幾十加橫再加幾23twenty-three,35thirty-five65sixty-five,76sixty-six83eighty-three,99ninty-nine5.若問幾百幾十幾，幾百and幾十幾108

6.4位以上基數(shù)詞口訣：從右向左三逗開，一逗千（thousand）二逗百萬（million）三逗十萬萬（billion）1,001

onethousandandone523,716,234fivebilliontwohundredandthirty-sevenmilliononehundrdandsixty-sixthousandtwohundredandthirty-fouronehundredandeightonehundredandforty-eight146口頭練習(xí)2,018

134,056,486

twothousandandeighteenonehundredandthirty-fourmillionfifty-sixthousandfourhundredandeighty-six二、基數(shù)詞的考點Thereare13,000,000booksinthelibrary.讀作：thirteenmillionThereareaboutonehundredlibrariesintheuniversity.Therearehundredsofstudentsineverylibrary.具體數(shù)字兩無（s，of）泛指數(shù)字兩有（s，of）二、基數(shù)詞考點（一）具體數(shù)字兩無（s,of）泛指數(shù)字兩有（s,of）具體：五千名學(xué)生

fivethousandstudentsninehundredworkers九百名工人泛指：成百萬顆數(shù)millionsoftrees成百個學(xué)生

millionsofstudents注：severalhundredteachersTheyhavetwodaughters.HiswifeMichellewasbornin1964,sheis54now.

Attheageof31,hegotmarried.Obamawasbornin1961,heis57yearsoldnow.

MaliaAnnisagirlof19.

Natashaisagirlof17yearsold.

二、基數(shù)詞考點（一）具體數(shù)字兩無（s,of）泛指數(shù)字兩有（s,of）具體：五千名學(xué)生fivethousandstudents

九百名工人ninehundredworkers泛指：成百萬顆數(shù)millionsoftrees

成百個學(xué)生millionsofstudents注：sevenhundredteachers（二）年齡表達法3.做定語的年齡：一位10歲的女孩

agirlof10=aten-year-oldgirl1.不確定的年齡：inone's+幾十復(fù)數(shù)2.確定的年齡：atthirty

在三十歲時attheageof30(yearsold)奧巴馬出生年份：1961年in1961年月日：1961年8月4日onAug.4th,1961世紀年代：20世紀60年代inthe1960sinthe1960's二、基數(shù)詞考點（三）時間表達1.日期類

a.年代1961讀作：nineteensixty-oneb.年月日1961年8月4日寫作：Aug.4th,1961讀作：Augustthefourth,nineteensixty-oneC.世紀年代

inthe1960s在20世紀60年代口頭練習(xí)請把下列日期與代表的節(jié)日連起來。Octobor31stFebruary14thOctobororNovemberMarchorAprilHalloweenValentine'sEasterDiwalliJanuary1stAugest15thJune1stDecember25thApril1stAprilFool'sDayChildren'sDayMid-autumnFestivalHappyNewYearChristmasDayIfwintercomes,canspringbefarbehind?冬天來了，春天還會遠嗎？

——Shelley（雪萊）1792年8月4日（出生）onAug.4th,1792inthe1790s/'s在18世紀90年代③inthe18thcentury在18世紀Imightsaythatsuccessiswonbythreethings:first,effort;second,moreeffort;third,stillmoreeffort.可以說成功需要三件事才能贏得：努力，努力，在努力？

——ThomasHardy（英國詩人小說家哈代）1840年（出生）在19世紀40年代①inthe1840s/'s②inthe19thcenturyMyhighestprincipleis:regardlessofanydifficulties,neveryielding.我的最高原則是：不論面對任何困難，都絕不屈服。

——MarieCurie（波蘭物理學(xué)家居里夫人）1867年（出生）在19世紀60年代inthe1860s/'sinthe19thcenturyKnowledgeispower.知識就是力量。

——Bacon（英國作家培根）1561年（出生）在16世紀60年代inthe1560s/'sinthe16thcenturyWherethereisawill,thereisaway.有志者，事競成。

——ThomasEdison（美國發(fā)明家愛迪生）1847年（出生）在19世紀40年代inthe1840s/'sinthe19thcenturyHeaskshisdaughterstogotobedat8:30.eightthirtytenpasttententotwoseventosixthirteenpastfiveeightpasttwelve2.時刻表達法：a.o'clock(用法可省)在六點at6（o'clock）時+分后不用o'clock六點半at6:30b.幾點幾分表達法：先時后分7:05sevenfive

3:30threethirty

6:45sixforty-five≤30分鐘分鐘past小時

9:20twentypastnine

半點可用half

9:30halfpastnine＞30分鐘分鐘to(時+1)9:55fivetoten口訣：差“幾分”到“幾點”，寫個“to”字在中間，若是幾點“過”幾分，還是past來接管，若是嫌此還麻煩，先“點”后“分”也能辦。（四）基數(shù)詞短語（一）整個半一個半小時oneandahalfhoursanhourandahalf五年半

fiveandahalfyearsfiveyearsandahalf一兩天

onedayortwooneortwodays（二）額外再多再多2天

another2days2other/moredays（三）每......每三年every3years每隔一天every2dayseveryother(second)day每隔兩天every3dayseverythirdday（五）基數(shù)詞其它表達方式（一）小數(shù)表示法1.3meters讀作:onepointthreemeters（二）百分數(shù)％percent15％fifteenpercentofthestudents(做主)謂復(fù)

water(做主)謂單1.TheOlympicGameareheld__________.A.everyfouryearsB.everyfouryearC.everyfourthyearsD.everyfour-years2.Ittookme_________tofindthekeytothedrawer.A.oneandhalfhoursB.oneandahalfhoursC.oneandahlfhourD.oneandhalfhouronepointthreemetersAB3.Theteachersaidthat______oftheboyswouldtakepartinthetalentshow.A.threefiveB.threefives

C.thirdsfifthsD.threefifths4.Weallknowthat______oftheearth______coveredbysea.A.threefourth;isB.threefourths;isC.threefourths;areD.thirdfour;isonepointthreemetersDBfirsttsecondtthirdtfourthtfifthtsixthtseventhteighthtninthttenthteleventhttwelftht一、序數(shù)詞構(gòu)成（縮寫：數(shù)字+序數(shù)詞兩個尾字母）基變序，有規(guī)律，詞尾加上th;一，二，三特殊記,詞尾分別t,d,d;1stfirst;2ndsecond;3rdthird；八去t,九去e;ve要用f替；8theighth;9thninth;12thtwelfth;5thfifth20thtwenty;30ththirtyiethieth整十變y為ie,后面再加th；94thninety-fourth;31stthirty-first;73rdseventy-third;99thninety-ninth.若是遇到幾十幾，只變個位就可以。二、序數(shù)詞用法（一）序數(shù)詞中冠詞運用（1）the+序“第幾......”thethirdtime第三次

a/an+序“又一，再”athirdtime又一，再一次（2）冠詞情況

Tom'ssecondvisitHewas(the)secondintheEnglishexam.

Ihavetofinishmyhomeworkfirst.My(the)first五月一日

atfirst起初

a.序數(shù)詞前已有限定詞

b.表比賽/考試名次，定冠詞可省

c.序數(shù)詞被用做副詞

d.在月，日表達中可省

e.一些固搭中(二)序+基考點1.表達編號口訣：名前序，名后基Lesson21=thetwenty-firstlessonLineFour=thefourthline但常用基數(shù)詞表編號：BusNo.5;Room632;Class2Grade4Thisappleisred._________thisappleisred.

分子分母onefifthOnefifthof(二)序+基考點

分子分母onefifth子基母序

分子分母twofourths分子>1,分母加sahalfaquarter分母若是2和4，half,quarter來代替分數(shù)做主語時，同百分數(shù)做主語用法一致。2/3ofthestudents______(like)English.2/3ofthetime_____(be)wasted.

like