英语人教版九年级全册The world of numbers .pptx

numbers,库尔勒经济技术开发区第一中学,陈凤英,学习目标,1.通过本节课的复习，学会正确使用基数词和序数词。2.通过本节课的复习，学会运用所学知识描述日常生活中与数字相关的内容。,一.基数词(Cardinalnumbers),1）从112分别由从one到twelve12个各不相同的词表示。2）从1319均以后缀-teen结尾。3）从2090的整十数词均以后缀-ty结尾。表示“几十几”时，个位和十位之间需加连字符，如twenty-one,thirty-two,forty-three等。,Cardinalnumbersonetwothreefourfivesixseveneightnineteneleventwelvethirteenfourteenfifteensixteenseventeeneighteennineteentwentythirtyfortyfifty.ninetytwenty-onethirty-two.ninety-nine,Howtowriteandreadthefollowingnumbers,2122031330414405155091990,two,twelve,twenty,three,thirteen,thirty,four,fourteen,forty,five,fifteen,fifty,nine,nineteen,ninety,past分钟数不超过30分,halfpast,to分钟数超过30分,oclock,时间逆读法：分钟+past/to+小时,aquarter,12,3,6,9,12:00,4:15,10:55,时间,8:30,Talkaboutyourdailylife.,A:Iusuallygetupateightoclock.B:Ioftenhavemorningreadingsat.C:Isometimes.D:.,Groupwork,Tinasdailylife,TinaisastudentinClassTwo,Grade_.Sheis_yearsold.Theseniorhighschoolentranceexam(中考)iscoming,inordertogetgoodgrades,sheworksveryhard.Inthemorning,Tinausuallygetsupat_.Thenshebrushesherteethquickly.Beforebreakfast,sheusuallyhasmorningreadingsforhalfanhour.Shegoestoschoolat_.Atschool,sheoftenlistenstotheteacherscarefullyandreviewsEnglish,historyandChineseinhersparetime.Besides,shealwaysdoesexerciseforhalfanhoureveryday.Afterschool,shehasdinnerattentoeight.Afterthat,shedoesherhomeworkat_.Sheisntgoodatmath,soshespendsmoretimeonmath.Itisusuallyfromtento_.Shegoestobedat_.Goodhabitsandexercisemakeherabetterstudent.,sevenoclock,fifteen,Nine,halfpasteight,eightfifteen,halfpastten,tentoeleven(10:50),Note：hundred,thousand,million的用法,1)表示具体、准确的数目时，hundred,thousand,million等数词后不能加-s,如:fivehundred,sixthousand,sevenmillion。,2)当hundred,thousand等数词与of连用，表示不具体、不准确的数目时，词尾须加-s。如：thousandsofstudents,millionsoftrees.,二.序数词(ordinalnumber),1）不规则变化，记住1-3的序数词2）其余在词尾加“th”,基数词变序数词顺口溜：一二三要全变,其它后面th添.八去t九去e,以y结尾改ie.five,twelve两兄弟,ve要用f替.若是遇到几十几,只变个位就可以.,(firstsecondthird),（fifth，eighth，ninth，twelfth，twentieththirty-first）,month,January,second,December,November,October,September,eighth,seventh,sixth,fifth,fourth,third,February,March,first,twelfth,eleventh,April,May,June,July,August,ninth,tenth,Marchisthethirdmonthofayear.,月份,isthe_dayofaweek.isthe_dayofaweek.isthe_dayofaweek.isthe_dayofaweek.isthe_dayofaweek.isthe_dayofaweek.isthe_dayofaweek.,seventh,third,fourth,first,Saturday,second,fifth,sixth,Sunday,Monday,Tuesday,Wednesday,Thursday,Friday,Letsreviewtherules一起复习基数词变序数词的规律,onefirsteleventwotwelvethreethirteenfourfourteenfivefifteenseveneighteenninenineteententwentytwenty-onetwenty-twoTwenty-threethirty-onethirty,fifth,seventh,tenth,thirteenth,fourteenth,fifteenth,eighteenth,nineteenth,fourth,third,second,ninth,twenty-second,twenty-first,twentieth,twelfth,eleventh,twenty-third,thirtieth,thirty-first,三、分数(fraction)的表达法,表示分数时，分子用基数，分母用序数，分子大于1，分母用复数。分数修饰名词时，后用of短语。,threesevenths,(a/onehalfonequarter),1/21/4怎么表示?,oneseventh,总结分数构成：分子用基数词，分母用序数词，分子大于1，分母加-s。,onefourth,threefifths,twothirds,fivesixths,1、_(四分之三)ofthestudentsinClass2knowthedateofFathersDay.2、TodayisMarys_(十二岁)birthday.Sheis_yearsoldnow.3、Boysandgirls,pleaseturntopage_(五)andlookatthe_(五)picture.4、IliveinRoom805.Samlivesintheroomrightabovemine,onthen_floor.,测一测：,five,twelve,twelfth,fifth,inth,Threefourths,测一测：,5、_(五分之一)oftheworkhasbeenfinished.6、Thenumberofthestudentsisaboutthree_inourgrade.A.hundredsB.hundredsofC.hundredD.hundredof7、Myhometownisabeautifulplace,becausethereare_treesaroundmyhome.A.hundredsofB.hundredC.hundredsD.hundredof8、Theseniorhighschoo