數(shù)詞專項講解及強化訓練課件 【知識精講+備課精研】 高三英語一輪復(fù)習

數(shù)

詞Numeral瑤中

付亞娟I.定義數(shù)詞是指表示數(shù)目多少或順序多少的詞。數(shù)詞可以作句子的主語、賓語、表語和定語。1,什么是數(shù)詞？2,數(shù)詞在句子中可以擔任什么成分？執(zhí)行句子行為或動作的主體，即動作的發(fā)出者。主語：賓語：表語：定語：又稱授詞，即動作的承受者。屬于主語補足語，補充說明主語的身份、性質(zhì)、品性、特征和狀態(tài)的詞或句子。用來修飾、限定、說明名詞或代詞的品質(zhì)與特征。II.分類1.基數(shù)詞2.序數(shù)詞數(shù)詞Eg:one,two,threeEg:first,second,thirdIII.基數(shù)詞1.基數(shù)詞是什么？表示數(shù)目的詞叫基數(shù)詞。Eg:1one2two3three2.英語中常用的基數(shù)詞12345onetwothreefourfivesixseveneightnineten6789101112131415eleventwelvethirteenfourteenfifteensixteenseventeeneighteennineteentwenty1617181920212223...twenty-onetwenty-twotwenty-three...thirtyfortyfiftysixtyseventy304050607080901000eightyninetyone(a)hundredzero1011000onehundredandoneone(a)thousandtenthousandOnehundredthousand 10,000100,0001000,0001,000,000,0001,000,000,000,000onemilliononebilliononetrillion小試牛刀一．寫出下列基數(shù)詞29_____________35_____________

11_____________80_____________15_____________19_____________14_____________90_____________15_____________8_____________13_____________0_____________51_____________12_____________100_______________10_____________twenty-ninethirty-fiveeleveneightyfifteennineteenfourteenninetyfifteeneightthirteenzerofifty-onetwelveone(a)hundredten二．用英語填入適當?shù)臄?shù)字。1.five+seven=______________2.seventy-two÷____________=nine3.five+six=______________4.______________-seven=three5.______________-five=fourteen6.fifty-_________________=five7.ten×ten=__________________8.twenty–two=________________9.zero+eight=________________10.four×nine=_________________thirteeneighteleventennineteenforty-fiveone(a)hundredeighteeneightthirty-six(1)百位與十位之間要加and；十萬位和萬位,億位和千萬位之間通常也要加and。(2)英語用千、百萬等單位計數(shù),大數(shù)字從右向左看,每隔三位劃一逗號,倒數(shù)第一個逗號之前要用thousand,倒數(shù)第二個逗號之前要用million,倒數(shù)第三的逗號之前要用billion表示。(3)hundred、thousand、million作數(shù)詞時,不用復(fù)數(shù),前面可以加上one,two,?等其它數(shù)詞。用作名詞時復(fù)數(shù)表示“成?上?”,后面必須要有of,前面可以加上some,many,several等詞。如：fivehundred(五百),hundredsof(成百上千的),tenthousand(一萬),thousandsof(成千上萬的),millionsof(成百萬的)3.注意1.序數(shù)詞是什么？表示順序的數(shù)詞叫序數(shù)詞。Eg:1first2second3thirdIV.序數(shù)詞2.英語中常用的基數(shù)詞1st2nd3rd4th5thfirstsecondthirdfourthfifthsixthseventheighthninethtenth6th7th8th9th10th11th12th13th14th15theleventhtwelfththirteenthfourteenthfifteenthsixteenthseventeentheighteenthnineteenthtwentieth16th17th18th19th20th21th22th23th...twenty-firsttwenty-secondtwenty-third...thirtieth...30th...100thhundredth101th1000thonehundredandfirstone(a)thousandthtenthousandthOnehundredthousandth 10,000th100,000th1000,000th1,000,000,000th1,000,000,000,000thonemillionthonebillionthonetrillionth3.英語的序數(shù)詞基本變法：(1)一般在基數(shù)詞后加th；

(2)-ve結(jié)尾的改為-f,再加th；(3)-ty結(jié)尾的改為-tie,再加th；(4)熟記特殊詞。Eg:four→fourthEg:five→fifthEg:thirty→thirtiethEg:one→first,two→second,基數(shù)詞變序數(shù)詞的用法口訣：基變序，有規(guī)律；詞尾加上-th。1、2、3特殊記，詞尾字母t,d,d。8少t,9去e,ve要用f替，y變成ie。若是遇見幾十幾，只變個位就可以。(1)兩位以上的序數(shù)詞僅個位數(shù)部分用序數(shù)詞,其余部分仍用基數(shù)詞。4.注意Eg：thirty-sixth,(2)使用序數(shù)詞時一般加定冠詞the.Eg：I'minthethirdgrade.(3)序數(shù)詞作“幾分之幾”講時,有復(fù)數(shù)形式。Eg:1/5→onefifth;

2/3→twothirds;

4/7→foursevenths;

1/2→ahalf;

1/4→aquarter;

3/4→threequarters;

50%→fiftyhundredths(fiftypercent).小試牛刀一、寫出下列序數(shù)詞1.one____________2.nine____________3.six____________4.five____________5.ten___________

6.twelve___________7.eight___________8.three____________9.two___________

10.twenty___________11.fifty-five_________________12.twenty-one__________________firstninthninthfifthtenthtwelftheighththirdsecondtwentiethfifty-fifthtwenty-first二、寫出下列單詞的基數(shù)詞1.third_______________2.fourth_______________3.tenth_______________4.twentieth_______________5.nineteenth_______________6.thirty-first_______________7.twelfth_______________8.thirty-second_______________9.fifth_______________10.eighth_______________threefourtentwentynineteenthirty-onetwelvethirty-twofiveeight1)表示年份：2)表示日期：3)表示時刻：4)表示編號：V.數(shù)詞的用法5)小數(shù)的讀法：6)“半”的表達：7)序數(shù)詞前面加the時,表示順序,加a/an時表示:再一,又一。：1)表示年份：2)表示日期：3)表示時刻：4)表示編號：Eg:2022→twentythousandandtwenty-twoEg:12月1日→Dec.1st或thefirstofDecemberEg:5:15→fivefifteen或aquarterpastfiveEg:Room105→Roomone0fiveBusNo.13→BusNumberThirteenV.數(shù)詞的用法5)小數(shù)的讀法：6)“半”的表達：7)序數(shù)詞前面加the時,表示順序,加a/an時表示:再一,又一。：Eg:0.16→zeropointonesix.5.7→fivepointsevenEg:1/2→half,半小時→halfanhour,1.5小時→oneandahalfhours或onehourandahalf.DecemberEg:Thethirdlessonisratherdifficult.(第三課相當難)1,Summeris________seasonoftheyear,A.secondB.asecondC.thesecond2.--Whattimeisit?--It's________(7:40)A.twentytoeightB.twentytosevenC.twentypasteight3.Thereare________workersinthiscity.A.sevenhundredandtwentysixB.sevenhundredtwenty-sixC.sevenhundredandtwenty-six4.ChristmasDayison________A.January1stB.December25thC.May5th5.Thursdayis________dayoftheweek.A.thefivethB.fiveC.thefifth牛刀小試CACBB基數(shù)詞序數(shù)詞1one1stfirst2two2ndsecond3three3rdthird4four4thfourth5five5thfifth6six6thsixth7seven7thseventh8eight8theighth9nine9thninth10ten10thtenth11eleven11theleventh12twelve12thtwelfth13thirteen13ththirteenth14fourteen14thfourteenth15fifteen15thfifteenth16sixteen16thsixteenth17seventeen17thseventeenth18eighteen18theighteenth19nineteen19thnineteenth20twenty20thtwentieth30thirty30ththirtieth40forty40thfortieth50fifty50thfiftieth60sixty60thsixtieth70seventy70thseventieth80eighty80theightieth90ninety90thninetieth100one(a)hundred100thone(a)hundredth23twenty-three23thtwenty-third35thirty-five35ththirty-fifth101onehundred