Unit1Grammar课件牛津译林版七年级英语下册3

7BUnit1DreamhomesGrammarWhatkindofhomedoyoulivein?Howmanyroomsdoesithave?Howmanypeoplearethereinyourfamily?DoyouandyourfamilyspendtheSpringFestivaltogether?WhattimedoyouoftengotobedonNewYear’sEve?HowmuchmoneydoyougetduringtheSpringFestival?Howoldareyounow?HaveafreetalkIthasthree/four/five/...rooms.Therearethree/four/...peopleinmyfamily.Ioftengotobedat10:00/11:30/12:00/...onNewYear’sEve.Iget100/200/500/...yuan.Iamtwelve/thirteen/fourteenyearsold.★Weusecardinalnumberstotalkaboutthenumbersofpeopleorthings,time,money,ageandsoon.Haveafreetalk0=zero10=ten20=twenty21=twenty-one1=one11=eleven30=thirty22=twenty-two2=two12=twelve40=forty23=twenty-three3=three13=thirteen50=fifty24=twenty-four4=four14=fourteen60=sixty25=twenty-five5=five15=fifteen70=seventy26=twenty-six6=six16=sixteen80=eighty27=twenty-seven7=seven17=seventeen90=ninety28=twenty-eight8=eight18=eighteen100=hundred29=twenty-nine9=nine19=nineteen

Cardinalnumbers★Rule1:13-19这几个数均以teen结尾★Rule2:20以上100以内的整十数，均以ty结尾★Rule3:20以上的非整十数，书写时要在十位和个位之间加连字符。Cardinalnumbers1001,00010,000100,0001,000,0001,000,000,000Cardinalnumbersonehundred[ˈhʌndrəd]百onethousandtenthousandonehundredthousandonemillion[ˈθaʊznd]千[ˈmɪljən]百万onebillion[ˈbɪljən]十亿百位数(百=hundred)234=204=千位数(千=thousand)2,345=4,056=2,008=★Rule4:读三位数或三位以上的基数词时，要在十位前加and，如果十位为0，则在个位前加and。Cardinalnumberstwohundredandthirty-fourtwohundredandfourtwothousandthreehundredandforty-fivefourthousandandfifty-sixtwothousandandeight较大数字(百万=million)567,110=6,425,279=Cardinalnumbersfivehundredandsixty-seventhousandonehundredandtensixmillionfourhundredandtwenty-fivethousandtwohundredandseventy-nine★Rule5:在用阿拉伯数字记录较大数目时，通常用逗号将大数目分隔，从个位开始，三个一组。从右往左逗号依次代表thousand,million和billion。9305104607,,,thousandmillionbillionninebillionthreehundredandfivemilliononehundredandfourthousandsixhundredandseven★数字+hundred/thousand/million...百/千/百万threehundred/fivethousand/ninemillionhundredsof/thousandsof/millionsof成百上千/成千上万/数百万ThousandsofpeoplevisitLianyungangeveryyear.PracticeThereare

(hundred)ofplayers.Four

(hundred)ofthemaregirls.CardinalnumbershundredshundredPractice1.Peoplefromabout180countriesandareasliveinNewYork.180=onehundredandeighty2.TheCNToweris1,815feettall.1,815=onethousandeighthundredandfifteen3.RedSquareinMoscowisabout91,000squaremetresinsize.91,000=ninety-onethousand4.Francehasanareaofover260,000squaremiles.260,000=twohundredandsixtythousand5.Thereareabout8,000,000peoplelivinginLondon.8,000,000=eightmillion6.Tokyo,thecapitalofJapan,hasover13,000,000people13,000,000=thirteenmillionThesummerholidaystartsfromthefirstofJuly.日期读法：the+序数词+of+月份=月份+the+序数词·Iliveontheeleventhfloor.onthe+序数词+floor在......楼·Theteamcomesfirstinthebasketballmatch.comefirst/second/...得第一/第二/...·Sandyisthefirststudenttogotoschooleverymorning.the+first/second/...+(名词)+todosth.第一个/第二个/...做某事的（...）★Weuseordinalnumberstotalkaboutdates,floors,positions,etc.Ordinalnumbers1st=first10th=tenth19th=nineteenth2nd=second11th=eleventh20th=twentieth3rd=third12th=twelfth30th=thirtieth4th=fourth13th=thirteenth40th=fortieth5th=fifth14th=fourteenth50th=fiftieth6th=sixth15th=fifteenth60th=sixtieth7th=seventh16th=sixteenth70th=seventieth8th=eighth17th=seventeenth80th=eightieth9th=ninth18th=eighteenth90th=ninetiethOrdinalnumbers一般的序数词的构成是在基数词词尾加上th，而first、second、third是特殊的。以ve结尾的基数词，ve要变为f，再加th。

five---fifthtwelve---twelfth以ty结尾的基数词，y要变为ie，再加th。

twenty---twentieththirty---thirtieth十位或百位的基数词，只将其个位上的基数词变为序数词。

fifty-five---fifty-fifth

twohundredandsixty-one---twohundredandsixty-firstOrdinalnumbersOrdinalnumbers★基数词变序数词口诀：基变序，有规律。1，2，3，特殊记，结尾字母tdd;th要从4加起；8加h，9去e；ve要用f替；逢十改y为ie；几十几，几百几，只变个位就可以。seventhfifteenthfourthsecondninthtwelfth1.

volunteerswilltakepartintheYouthOlympicGamesinNanjingthissummervacation.A.Tenthousands B.Thousandof C.Tenthousandsof D.Thousandsof2.

thestudentswillgototheislandforthepicnic.A.Threehundredsof B.Threehundred C.Threehundredof D.HundredsofPractice3.---Couldyoutellmehowtoreadthenumber567,043inEnglish?---It’s

.A.fivehundredsixty-seventhousandforty-three B.fivehundredsixty-seventhousandandforty-threeC.fivehundredandsixty-seventhousandforty-threeD.fivehundredandsixty-seventhousandandforty-three4.Thenewbridgeisabout

long.A.sixhundredmeter

B.sixhundredmeters’ C.six-hundred-meter

D.sixhundredmeters5.7,069

27,483632,5168,137,5276.Several

(百)familiestakepartinthegame.7.Septemberisthe

(nine)monthoftheyear.8.Amycame

(two)intheMathsexam.9.Thereisashoppingmallonthe

(twelve)floor.seventhousandandsixty-ninetwenty-seventhousandfourhundredandeighty-threesixhundredandthirty-threethousandfivehundredandsi