中考英語專題復習課件-數詞

數詞中考英語總復習數詞就是表示事物的數量和順序的詞,分為基數詞和序數詞兩種。數詞基數詞序數詞表示事物的數量表示事物的順序一.基數詞0zero1one2two3three

4four5five6six7seven8eight9nine10ten11eleven12twelve基數詞20twenty30thirty40forty

50fifty60sixty70seventy

80eighty90ninety

(3)20-90的整十數詞均以后綴-ty結尾。表示“幾十幾”時,個位和十位之間需加連詞符,如:twenty-one,thirty-two,forty-three.萬以上的數字讀法特點6,500,431,729hundredthousandmillionbillion注意每三個數為一個單位，按照百、十、個向下讀。6，500，431，729sevenhundredandtwenty-ninethousandmillionbillionsixbillion,fivehundredmillion,fourhundredandthirty-onethousand,hundred基數詞+hundredthousandmillion表示具體數字表示具體、準確的數目時,hundred,thousand,million等詞后不能加-s,如:fivehundred,sixthousand,sevenmillion等。hundreds

thousands

millions+of表示概數當hundred,thousand等數詞與of連用,表示不具體、不準確的數目時,詞尾須加-s。如:thousandsofstudents,millionsoftrees.Thousandsandthousands

ofpeoplehavevisitedthe

city.若表示某一個數是某些特指人或東西中的一部分,hundred等后面可跟of。twohundredofthestudents

這些學生其中的二百個比較:twohundredstudents

二百個學生onestudent,oneofthestudentsafew后常接hundred;

many后常接hundredsof;several后常接hundred或hundredsof。afewhundredmen幾百人

manyhundredsofmen幾百人

二.序數詞序數詞1=one1st=first

2=two2nd=second

3=three3rd=third

4=four4th=fourth

5=five5th=fifth

6=six6th=sixth

7=seven7th=seventh

8=eight8th=eighth

9=nine9th=ninth

10=ten10th=tenth11=eleven11th=eleventh

12=twelve12th=twelfth13=thirteen13th=thirteenth

14=fourteen14th=fourteenth

15=fifteen15th=fifteenth

16=sixteen16th=sixteenth17=seventeen17th=seventeenth

18=eighteen18th=eighteenth19=nineteen19th=nineteenth

20=twenty20th=twentieth21=twenty-one21st=twenty-first

22=twenty-two22nd=twenty-second序數詞onetwothreefourfivesixseveneightninetenfirstsecondthird

fourth

fifth

sixth

seventh

eighth

ninth

tenth

1st2nd3rd4th5th6th7th8th9th

10th

eleventwelvethirteenfourteenfifteensixteenseventeeneighteennineteentwenty

eleventh

twelfth

thirteenth

fourteenth

fifteenth

sixteenth

seventeenth

eighteenth

nineteenth

twentieth11th12th13th14th15th16th17th18th19th20th基數詞基數詞序數詞序數詞基變序,有規(guī)律,詞尾加上th。123,特殊記,詞尾字母t,d,d。

8去t,9去e,f來把ve替。twenty-onetwenty-twotwenty-threethirtyfortyfiftysixtyseventyeightyninetyhundredtwenty-first

twenty-second

twenty-third

thirtieth

fortieth

fiftieth

sixtieth

seventieth

eightieth

ninetieth

hundredth

21st22nd23rd

30th40th

50th60th70th80th90th100th

整十y

變i，th前有小e來基數詞序數詞注:序數詞前通常要加定冠詞the。We’llgooveritasecondtime.

We’vetrieditthreetimes.Mustwetryitafourthtime?TheSecondWorldWarbrokeoutin1939.注:序數詞前出現不定冠詞a或an時,則表示“再—”,“又—”。(=another)數詞的表示法時間類型表示法例讀法整點基數詞(+o’clock)1:00﹤30分鐘分鐘+past+鐘點2:10=30分鐘half+past+鐘點3:30﹥30分鐘到下一個鐘點所差的分鐘數+to+下一個鐘點數

4:40分鐘逢15即一刻鐘aquarterpast/to5:156:45簡化法按順序讀基數詞7:50one(o’clock)tenpasttwohalfpastthreetwentytofiveaquarterpastfiveaquartertosevensevenfifty表示在幾點鐘用介詞at數詞的表示法—

時刻三、年月表示法thesixth(6th)century公元六世紀

公元十八世紀

inthe1900’s二十世紀

inthe1600’s十七世紀1.世紀可以用“the+序數詞+century”表示,也可以用“the+百位進數加’s”表示2.年代用“the+基數詞表示的世紀+十位整數的復數形式表示的年代”構成。在二十世紀三十年代

inthe1930s(inthenineteenthirties)

在十九世紀六十年代

inthe1860s(intheeighteensixties)“inone’s+整十位基數詞的復數形式”,表示“在某人幾十幾歲的時候”。inone’sforties在某人四十多歲時

Mymotherisinherfifties.①月日,年數詞的表示法—

年月日on

October

the

first,twothousand

andeight日the+序數詞月

(首字母大寫)月日與年之間用逗號分開年（兩位兩位讀）寫作on

August9(th)寫作in

May,2010有日用

on;無日用in在2008年10月1日寫作on

October1(st),2008②月日在8月9日③月年在2010年5月在具體的某一天的早晨、上午、下午、晚上、夜里用介詞on。morning,afternoon,evening等詞前用介詞in:inthemorning/afternoon/evening。但是,當這些詞前或后有定語時,in應改為on。HewasbornonthenightofDecember25th,1992.Hesuddenlycamebackonarainynight.分數的表示法:分子用基數詞,分母用序數詞。分子大于1時,分母用復數(+s)。基數詞

序數詞數詞的表示法—

分數80%百分數(…%)基數詞+percenteightypercenthalf/(百)分數+of+可數名詞復數謂語動詞用復數

half/(百)分數+of+不可數名詞

謂語動詞用單數Threefourthsoftheapples____bad.Threefourthsoftheapple____bad.areis一個半小時

two

andahalf

hours=two

hours

andahalf

one

andahalf

hours=anhour

andahalf數詞的表示法——“……半”的表示法兩個半小時一年半兩年半

two

andahalf

years=two

years

andahalf

one

andahalf

years=ayear

andahalf數詞的表示法——

“一兩個”的表示法“a/an+單名+ortwo”

或“oneortwo+復名”。Don’tworry.You’llbeallrightinadayortwo.

Icanonlystayhereforoneortwodays.

Icanfinishtheworkinaweekortwo.“一兩個”

習慣上用注意:a/an和one不可調換。數詞的表示法—倍數的表達法一倍once,兩倍twice,三倍three

times(三倍或以上用基數詞＋times)Thisboxisfivetimes

as

big

as

thatone.=Thisboxisfourtimes

bigger

than

thatone.

AsiaisfourtimesaslargeasEurope.

亞洲是歐洲的四倍大。(比歐洲大三倍。)①A+be+倍數

+

as

+原級(big,long,wide,…)+

as

+B.A是B的……倍……。表示倍數的句型②A+be+倍數

+比較級(bigger,higher,longer,wider,…)+

than

+B.A比B大(長……)……倍。Thisroomistwicebiggerthanthatone.這個房間比那個(房間)大兩倍。

Thisdictionaryisfourtimesthickerthanthatbook.這本詞典比那本書厚四倍。表示倍數的句型數詞的表示法—計量表達法(身高年齡長寬高厚深)fourincheswide=fourinchesinwidth4英寸寬threefeethigh=threefeetinheight3英尺高ThecitywallofXi’anis12meterswideand12metershigh．

Thisboxis2kilogramsinweight．1.主語+be+基數詞+單位詞(meter,kilometer,foot,inch,kilogram等)+形容詞.

(形容詞tall,old,long,wide,high,thick,deep等