初中英语语法-数词课件

初中英语语法稻田一中李培军数词初中英语语法稻田一中李培军数词1数词数词就是表示事物的数量和顺序的词，分基数词和序数词两种。一、基数词:表示数目的词称为基数词。1.基数词的形式：

A．从1——10：one，two，three，four，five，six，seven，eight，nine，ten．B．从11——19：eleven，twelve，thirteen，fourteen，fifteen，sixteen，seventeen，eighteen，nineteen．注意：这里除eleven，twelve，thirteen，fifteen，eighteen为特殊形式外，fourteen，sixteen，seventeen，nineteen都是由其个位数形式后添加后缀-teen构成。数词数词就是表示事物的数量和顺序的词，分基数词和序数词2C．从21——99：整数几十中除twenty，thirty,forty，fifty，eighty为特殊形式外，sixty，seventy，ninety都是其个位数形式后添加后缀-ty构成。表示几十几时，在几十和个位基数词形式之间添加连字符“-”。例如：21twenty-one

76seventy-six注意：

forty的拼写。D．百位数：基数词101～999，先说“几百”，再加“and”，再加末两位数。

101ahundredandone

320threehundredandtwenty648sixhundredandforty-eight注意：在几十和个位基数词形式之间添加连字符“-”。C．从21——99：3E．千位数以上：1000以上数目,从右向左每三位用“，”分开,分别读为thousand,million,billion

。例如：5,237,166,234读作：2,64816,250,064billionmillionthousandhundredandfivebillion，twohundredandthirty-sevenmillion，onehundredandsixty-sixthousand，twohundredandthirty-fourtwothousand,sixhundredandforty-eightsixteenmillion,twohundredandfiftythousand,sixty-fourE．千位数以上：2,648billionmillio42．基数词用法：⑴、表示具体数目,hundred,thousand,million不用复数。表示不确定数目,用复数。即hundredsof(数百),thousandsof(数千),millionsof(数百万)+名词复数,可以用many/several修饰，但不能与具体数目连用。

1)Ourcountryhasapopulationof1,300millionpeople.2)Therearethreethousandstudentsinourschool.3)Afterthewar,thousandsofpeoplebecamehomeless.4)Several/Manythousandsoftreesmustbeplantedeveryyear.注意：severalthousandsoftrees

=severalthousandtrees

即学即用：Many____treesmustbeplantedeveryyear.A.thousandsofB.millionofC.hundredofD.hundredsfourthousandofthestudents(学生中的四千人)fourthousandstudents(四千学生)注意2．基数词用法：⑴、表示具体数目,hundred,thou5⑵、“几十”的复数形式可以表示：几十多岁“in+one’s+整十的数词复数”

年代“in+the+整十的数词复数”Myparentsareintheirforties.

Itwasinthe1960s/inthe1960’sInthenineties,mostpeoplegotoworkbybike.

⑶、基数词表示编码：Room207207房Class2，Grade9

九年级二班PageFive=thefifthpage

第五页LessonOne=thefirstlesson

第一课BusNo.3=theNo.3bus

3号汽车No.1MiddleSchool

第一中学注意：用此种方法表示时，首字母需大写，不加冠词。twenties，thirties，forties，fifties，sixties，seventies，eighties，nineties⑵、“几十”的复数形式可以表示：⑶、基数词表示编码：Roo6即学即用：1.Inhis________(fifty),hestartedtolearnEnglish.2.Thecitychangedalot___.A.in1980sB.inthe1980sC.inthe19803.Hegraduatedin__of__century.A.thesixtieth;twentyB.sixty;thetwentiethC.thesixties;thetwentieth4.Hegottheprize__.A.inhisfiftiesB.infiftiesC.inhisfifty5.Thewinneris___.Heisan___boy.A.eight-year-old;eightyearsoldB.eightyearsold;eight-year-oldC.eight-yearsold;eight-year-old6.HecametoChina____.A.attheageof20B.whenheis20C.atageof20BfiftiesCABA即学即用：BfiftiesCABA7即学即用：1)Howfarisyouruncle’shomefromhere?It’sabouttwo___drive.A.hour’s

B.hoursC.hours’

D.hour2)Don’ttalktoSimonlikethat.Heisonlyan____boy.A.eleven­year­old

B.eleven­years­oldC.eleven­yearold

D.elevenyearsoldCA⑷、“基数词+名词”的合成形容词作定语。Kateisaneighteen­year­oldgirl.凯特是个18岁的女孩。eighteen的读音以元音开头，故其前要用不定冠词an。注意：这种合成形容词的结构为：“数词＋单数名词＋形容词”。复合形容词中，词与词之间要加连字符“­”。aseven-dayholiday=asevendays’holiday

haveatwo-weekholiday=haveatwoweeks’holiday有两周的休假askforathree-dayleave

=askforathreedays’leave请三天假即学即用：CA⑷、“基数词+名词”的合成形容词作定语。8⑹、表示时刻（注意：表示在几点钟用介词

at）1)顺读法先时后分,“几点几分”

9:30ninethirty6:21sixtwenty-one3)15分钟：aquarter30分钟：ahalf

9:15aquarterpastnine

12:30halfpasttwelve2)逆读法先分后时表示“几点过几分”，半小时以内，介词用past，

分钟数+past+钟点数。10:10tenpastten8:20twentypasteight表示“几点差几分”，半小时以上，介词用to，60减原分钟+to+(下一个)钟点数。9:50tentoten7:40twentytoeight⑸、表计量：“基数词+度量单位+形容词”Theclassroomis7meterslong,6meterswideand3metershigh.—It’salready7:40now.Whenwillthefilmstart?—___.Westillhavefiveminutes.A.AquartertosevenB.Sevenpastforty-fiveC.Aquartertoeight⑹、表示时刻（注意：表示在几点钟用介词at）3)15分95:156:45aquarter分钟逢15即一刻钟4:40（60-分钟）+to+（小时+1）﹥30分钟7:50按顺序读基数词简化法3:30half+past+小时=30分钟2:10分钟+past+小时﹤30分钟1:00基数词（+o’clock)整点读法例表示法时间类型oneo’clocktenpasttwohalfpastthreetwentytofiveaquarterpastfiveaquartertosevensevenfifty我看我行：5:15aquarter分钟逢154:40（60-分钟）10①.月、日、年：在2008年10月1日⑺、年、月、日的表示法：

on

Octorber

the

first,twothousand

andeight日the+序数词月（首字母大写）月日与年之间用，分开年（两位两位读）on

Augusttheninthin

May,twothousandandten注意：有日用on

无日用inonOct.1st,2008②.月、日：在8月9日③.月、年：在2010年5月写法：读法：读法：①.月、日、年：在2008年10月1日⑺、年、月、日的表示法111.Theaccidenthappenedon___.A.April5,2001B.2001,April5C.April2001,52.Iwasborn___.A.inMarch8,1993B.onJuly9,1994C.onMay,1995即学即用：1.Theaccidenthappenedon___12一个半小时两个半小时twoandahalfhours=twohoursandahalfoneandahalfhours=onehourandahalf⑻、“半”的表示法:1.Theboyalwaysstaystherefor__.A.oneandhalfhourB.oneandahalfhourC.oneandahalfhours2.Theoldmandrank__beer.A.twobottlesandahalfB.twoandahalfbottleC.twobottleandahalf“一两天”“的表示法：onedayortwooneortwodays注意：“三年半”threeyearsandahalfthreeandahalfyears再例如：一个半小时twoandahalfhours=two13“一倍”once“两倍”twice，“三倍”threetimes(三倍或以上基数词＋times)⑼、倍数的表示法：

Thisboxisfivetimes

asbigasthatone.=Thisboxisfourtimesbigger

thanthatone.①

A+be+倍数+as+adj.原形+as+B.A是B的…倍…②A

+be+倍数+adj.比+than+B.A比B……倍即学即用：1.Thisbuildingis__thatbuilding.A.threetimeastallasB.twicetallerthanC.threetimesastalleras2.我的箱子比你的重六倍!Myboxis_________________________yours.

sixtimesheavierthanseventimesasheavyas“一倍”once“两倍”14⑽、电话号码的读法为顺次读出一个个数字，“0”读作“o”或“zero”。数字连续重现时可用“double(双)”。62884405读作sixtwoeighteightfourfouro(或zero)five或sixtwodoubleeightdoublefouro(或zero)five。⑾、another,more修饰数词的用法：①.another表“另外的、额外的、附加的”时，用“another

+具体数字+名词

”

结构。例如：Thestrikemaylastanotherthreedays．罢工可能还要持续三天。—Haveyoufinishedyourreportyet？—No，Iwillfinishitin

10minutes．A．anotherB．OtherC．moreD．less②.more表“另外的、额外的、附加的”时，用“具体数字+more+名词

”

结构。⑽、电话号码的读法为顺次读出一个个数字，“0”读作“o”或“15二、序数词表示顺序的数词称为序数词。序数词一般以与之相应的基数词加词尾th构成；多个单词时，仅最后一个变为序数词。序数词前一般需加“the”。1．“基数词”变“序数词”的口诀：基变序，有规律，一、二、三特殊记，first，second，third，从四开始加th，八去t，九去e加th，五、十二变ve为f加th，整十后变y为ie加th，若想表示几十几，只变个位就可以。

二、序数词表示顺序的数词称为序数词。序数词一般以与之相应的16基数词序数词数字写法

onefirst1sttwosecond2ndthreethird3rdfivefifth5theighteighth8thnineninth9thtwelvetwelfth12thtwentytwentieth20thtwenty-onetwenty-first21sttwenty-twotwenty-second22ndtwenty-threetwenty-third23rdtwenty-fourtwenty-fourth24th基数词序数词172．序数词的用法：①.序数词作定语，前面要加the。The

firsttruckiscarryingafoodbasket．Johnlivesonthe

fifteenthfloor．SheismyfirstEnglishteacher.（注意：名词前若有名词所有格或名词性物主代词不用the）②.有时“a/an+序数词+名词”，表示“再一”，“又一”的意思。We‘llhavetodoitasecondtime．ShallIaskhimathirdtime？注意：more和another都有"再；又"之意。区别如下：①.“基数词＋more＋名词”。如：Theboyhadtwomoreapples/twoapplesmore.句型可变为：“some/afew/alittle/many/much等＋more＋名词”。如：Wouldyoulikesomemoretea?

②.“another＋基数词＋名词”。如：Hewroteanothertwoletters/twomoreletterstoher.

2．序数词的用法：18三、分数、百分数1．分数的表达与读法：先读分子，再读分母。分子用基数词，分母用序数词。分子大于1时，分母加-s。分子为one时可换用“a”。Twothirdsofthestudentsaregirlsinourclass.在我们班，三分之二的学生是女孩。2．1/2读作“a(one)half”(而不是asecond“一秒钟”)；1/4既可读作“a(one)quarter”，又可读作“a(one)fourth”。Threequartersoftheworld'sbooksandnewspapersarewritteninEnglish.世界上3/4的书和报纸是用英语写的。三、分数、百分数1．分数的表达与读法：1915分子基数词分母序数词onefifth27分子﹥1分母+stwosevenths14分子a分母quarteraquarter34threequarters12ahalf13threeandonethird3基数词+and+分数分数读法练习：1分子基数词onefifth2分子﹥1twosev203.百分数的表达与读法：先读基数词，再读百分号“%”(读作percent)。5%读作fivepercent0．5%读作zeropointfivepercent80%读作eightypercent200%读作twohundredpercenthalf/(百)分数+of+可数名词复数，谓语动词用复数half/(百)分数+of+不可数名词，谓语动词用单数但是：half/(百)分数+of+population谓语动词用复数注意：3.百分数的表达与读法：half/(百)分数+of211.__ofthestudents__boysinClassA.Twothree;areB.Twothirds;areC.Twothirds;is2.__ofhermoney__spentonclothes.A.Twothree;areB.Twothirds;isC.Twothird;is3.__theteachersinourschoolisaboutonehundred,and__ofthemarewomenteachers.A.Thenumberof;twothirdB.Thenumberof;twothirdsC.Anumberof;twothirds4.—Thereareforty­eightstudentsinourclass.And____ofusaregirls.—So,youhavesixteenboys.A.onethird

B.twothirdsC.twothird

D.onefourth即学即用：1.__ofthestudents__boys22四、其他数的表达：1．小数的读法：小数点前的基数词与前面所讲的基数词读法完全相同，小数点读作“point”，小数点后只需将数字一一读出。15．67读作fifteenpoint_six_seven0．009读作zeropointzerozeronine或noughtpointnoughtnoughtnine2．年代的读法为两位、两位地读。整百的后读hundred，整千的后读thousand，前常加“theyear”。1937读作nineteenthirty­seven或：nineteenhundredandthirty­seven1900年读作nineteenhundred1905年读作nineteenand(或o)five或：nineteenhundredandfive2000年读作theyeartwothousand四、其他数的表达：1．小数的读法：小数点前的基数词与前面所233．一些数学公式的读法：“加”用plus/and，“减”用minus，“乘”用times，“除”用dividedby，动词多用单数，如：3＋5＝8读作：Threeplus/andfiveiseight.9－2＝7读作：Nineminustwoisseven.6×5＝30读作：Fivetimessixisthirty.8÷4＝2读作：Eightdividedbyfouristwo.3．一些数学公式的读法：“加”用plus/and，“减”用m24中考典型例题解析中考典型例题解析25初中英语语法—数词ppt课件26初中英语语法—数词ppt课件27初中英语语法—数词ppt课件28初中英语语法—数词ppt课件29初中英语语法—数词ppt课件30初中英语语法—数词ppt课件31初中英语语法—数词ppt课件32初中英语语法—数词ppt课件33初中英语语法—数词ppt课件34初中英语语法—数词ppt课件35初中英语语法—数词ppt课件36初中英语语法—数词ppt课件37初中英语语法—数词ppt课件38初中英语语法—数词ppt课件39初中英语语法—数词ppt课件40初中英语语法—数词ppt课件41初中英语语法—数词ppt课件42初中英语语法—数词ppt课件43初中英语语法—数词ppt课件44初中英语语法—数词ppt课件45数词考点训练数词考点训练46Ⅰ.单项填空1.Theoldmanbegantolearntodriveacarattheageof____．

A．SixtyB．thesixtiethC．sixtyyearsoldD．sixties2.—What'sthetime,please?—It's________.A．ninethirty­five

B．forty­eightpastsixC．fifty­fivetofour

D．thirty­onetwo3.—Canyouwritethenumber“eighty­fivethousand,sixhundredandtwenty­six”?—Yes,itis________.A．856620

B．85626C．58662

D．586264.MygoodfriendZhangyingstudiesat________MiddleSchool.A．16

B．the16C．16thNo.

D．No.16Ⅰ.单项填空475.Thereare________daysinayear.A．threehundredssixty­fiveB．threehundredandsixty­fiveC．thethirdhundredsixty­fiveD．thirdhundredandsixty­five6.Henryis________tallestintheirclass.A．ThreeB．thethreeC．third

D．thethird7.About___ofthestudentsinourclassareLeaguemembers.A．four­fifth

B．fourfifthC．four­fives

D．fourfifths8.—Howmanyworkersarethereinyourfactory?—Therearetwo________.A．hundreds

B．hundredC．hundredofD．hundredsof5.Thereare________daysina489.Weallthinkthatthe____centurywillbringusmorehopes.A．twenty­first

B．twentieth­firstC．twenty­one

D．twentieth­one10.—Whatdoyouthinkofawar,LiMing?—I'venoidea.Butit'safactthat____peoplehadtoleavetheirhometownduringtheWarinIraq.A．threethousandsB．thousandofC．thousandsofD．severalthousands11.TodayisDec1.“1”canbepronounced________.A．one

B．afirstC．theone

D．thefirst9.Weallthinkthatthe____c4912.Iwant_______________ofbeef,please.A．halfakiloB．halfkiloC．halfandkiloD．halfkilos13.TheChangjiangRiverisoneof___longestriversin__world.A．the;/

B．a;/C．the;theD．the;a14.Hebegantomakealivingbyhimself______.A．inhisthirty

B．inhisthirtiesC．inthethirty

D．inthethirties15.ThisisMr.White’s____visittoBeijing.Hehasbeentheretwicebefore.A.twoB.secondC.thereD.third12.Iwant_______________ofbe5016.ThePeople’sLiberationArmywasfounded_____.A.onAugust1th,1927B.in1927,1AugustC.onAugust1st,1927D.inAugust1,192717.Thisdining-roomis_______ourclassroom.A.threetimesasbigasB.asthreetimesbigasC.threetimesbigasD.asbigthreetimesas18.Ourschoolisnotverybig.Thereareonly______students.A.ninehundredsofB.ninehundredC.ninehundredsD.ninehundredof19.Therewasnobusinthatsmalltown.Wehada