Unit2Grammar数词课件牛津深圳版英语八年级上册

Cardinalandordinalnumbers

GrammarAReadthecardinalnumbersandfindrules“十几”-teen['ka:dənəl]基数词“几十”-ty“几十几”-ty-…P23Howtoreadlargenumbersxxx,xxx,xxx,xxx★数字读法：“三位一分”billionmillionthousandandandandand4635fourthousandsixhundredand

thirty-five4,6352,53425,342253,4232,534,23325,342,330two

thousandfivehundredandthirty-fourtwenty-fivethousandthreehundredandforty-twotwohundredandfifty-threethousandfourhundredandtwenty-threetwomillionfivehundredandthirty-fourthousandtwohundredandthirty-threetwenty-fivemillionthreehundredandforty-twothousandthreehundredandthirtyChinawon_______and_________prize.

Germanywon_________prize.thefirstthethirdthesecondordinalnumbersthefirst;thesecond;thethirdWeuseordinalnumberstoshowthe______ofthings.[‘ɔ:dənəl]序数词order-th序数词是从基数词变化而来的。规则顺口溜：

基变序，有规律，末尾加个th,

一二三，特殊记，八去t,九去e,f来把ve替，见y先变成ie,末尾再加th,

遇见几百几十几，只变个位就可以。第101theonehundredandfirst

first2

thirdfourthtwelfthtwenty-third

twenty-eighth19P24onthe10thofSeptemberonthefifteenthdayoftheeighthlunarmonthonthe1stofOctoberonthe25thofDecember1.―Howlongistheriver?―It’s________meters.

A.aboutthreehundredandseventeen B.abouttwohundredsandforty-five C.morethantwohundreds D.less

than

three

hundreds

and

seventy2.―Canyouwritethenumbereighty-fourthousand,sixhundredandtwenty-six?―Yes,itis__________.A.84662B.84626 C.48662D.486263.－Howmanystudentsarethereinyourschool?

－Thereare__________.

A.thesixhundredandsixty-five B.sixhundredsixty-five C.sixhundredsandsixty-five D.sixhundredandsixty-five4.HanMeimeiis________toarriveatschooltoday.Noonearrivedearlierthanher.

A.theone B.thefirst C.firstone D.1stInstructionsaboutnumbers

GrammarBadd…and…subtract…from…祈使句：以动词原形开头，不能得出计算结果。“加减乘除”的表达：multiply…by…divide…by…InstructionsaboutnumbersAdd1and1.1plus1

is/equals2.指令，说明Add…and…

…plus…is/equals…2+45+6…2+4=65+6=11…

2-19-49-6…

Subtract1from2.2minus1

is/equals1.2-1=19-4=59-6=3…

2×3

2×52×72×3=62×5=10

2×7=14

Multiply2by3.2multipliedby3

is/equals6.

10÷28÷215÷510÷2=58÷2=415÷5=3Divide10by2.10dividedby2

is/equals5.主语是介词词组,可以得出结果

ubtractfrom13inus5813-5=8ultiplyby7ultiplied8567×8=56

ivide

by16ivided4416÷4=4

dd

and9

lus6159+6=15

ddivide

14lus4ivide29(14+4)÷2=9Finderrors(改错)1. 2add5is7.______________________________________.2. 7subtract3is4.______________________________________.3. 25divideby5equal5.______________________________________.4. Multiply3by9equal27.______________________________________.2plus5is77minus3is4.25dividedby5equals5.3multipliedby9equals27.拓展①分数表达四分之一三分之二onefourthtwothirds子基母序子＞1,母+s②年代表达21世纪10年代in

the2010s介词用in,世纪-1,年代+s③大概岁数表达在我们十几岁的时候in

ourtens介词用in,人称用物主,基数+s改错：Rosehasthreehundredsfruittrees.2._______treeshavebeenplantednearhere,sotheairisveryfresh.A.Twohundreds B.HundredofC.Hundredsof D.hundredsC解题技巧：有数不s,有s有of④⑤她是个18岁的美少女。Sheis____beautifullady.a18-year-oldB.an18-year-oldC.an18yearsoldD.a18-years-oldsB√Thebeautifulladyis18yearsold.解题技巧：有线不s⑥Anumberof

students

arewaitingfortheteacher.Thenumberofstudents

is360.辨析：anumberof许多thenumberof

数量，谓语动词用三单___girlstookpartintheHappyGirlCompetitionbutonlyfewofthemsucceeded.A.MillionofB.Manymillionof

C.TwomillionsD.MillionsofIgotabeautifulbikeonmy__birthday.Ilikeitverymuch.

A.fifteenthB.fifteen

C.thefifteenD.thefifteenthNow,everybody,pleaseturntoPage___andlookatthe___picture.A.Fifth;fiveB.Five;fifth

C.Fifth;fifthD.Five;fiveMostofmyfather’sfriendsare___andwereborn___.

A.intheirfort