基数词-序数词课件.ppt
A Cardinal numbers B Ordinal numbersWhat numbers can you see?Wordsreviewzerohundredthousandmillionfootsquaremetreareaovernum.零num.百num.千num.百万n.英尺adj.平方的n.米，公尺metern.面积prep.超过TolearnthecardinalnumbersandusethemtotalkaboutthenumbersofpeopleorthingsTolearntheordinalnumbersandusethemtotalkaboutdates,floors,positions,etc.语法讲解建议采用归纳法，如尽可能多的呈现一些相关例句，或可让学生从已学课文中找相应例句，引导学生试着从所观察到的语言现象中总结出语言规则和语法规律。Lookatthefollowingsentences.1.ThenewstudentsinClass1,Grade7(七年级上册U1)2.LiHuais22yearsold.(七年级上册U2)3.Thereare18classroomsinit.Myclassroomisonthegroundfloor.(七年级上册U3)4.Ionlyhavefifteenyuan.(七年级上册U7)Sentencesfromthisunit:1.Therearetwentyrestaurantsintown.(P6)2.ThebiggestoneinFifthStreet!(P6)3.Iliveinatown15milesfromLondon.(P8)4.Ourflatisontheseventhfloor.(P8)5.Ithaseightrooms.(P8)totestyoursenseofobservationtotestyourabilityofshort-termmemorytotestyourabilitytohighlightthelanguagepointsGuess1.ThenewstudentsinClass_,Grade_2.LiHuais_yearsold.3.Thereare_classroomsinit.Myclassroomisonthe_floor.4.Ionlyhave_yuan.5.Thereare_restaurantsintown.6.Thebiggestonein_Street!7.Iliveinatown_milesfromLondon.8.Ourflatisonthe_floor.9.Ithas_rooms.还记得这些数词么？1 72218groundfifteentwentyFifth15seventheight1.Septemberisthe_monthoftheyear.A.ninethB.ninthC.nineD.thetwelfth2._ChinesearelookingforwaystolearnEnglishwellbeforeBeijing2008OlympicGames.A.ThousandB.ThousandsC.ThousandofD.Thousandsof以上我们已经通过归纳总结和练习对本课的语法内容有了一定的了解，下面就让我们根据之前练习的考察情况进一步选择讲解该语法项的重难点。表示数目和顺序的词叫做数词。数词又分基数词和序数词，基数词表示数量，序数词表示顺序。1.表示班级、年级、学校人数等；2.(Class2,Grade7)3.2.表示城市和国家的人口数量等；4.3.表示电话号码、车牌号、门牌5.号、价格、年份等。2199的两位数，十位与个位之间用连字符“-”。例：21twenty-one 32thirty-two98ninety-eight 99ninety-nine101999的三位数，百位数和后面的数之间用连词and，百后用单数形式。例:101onehundredandone225twohundredandtwenty-five999ninehundredandninety-nine1000以上的数，从后面向前数，每三位中间点“,”，第一个“,”前为thousand，第二个“,”前为million，例：2,567twothousandfivehundredandsixty-seven3,018threethousandandeighteen16,250,064sixteenmilliontwohundredandfiftythousandsixty-fourhundred,thousand,million的用法：前面有数词，则不用其复数，如 two hundred,five thousand等。表示上百、上千、上百万时，用hundreds of,thousands of,millions of来表示。一般来说，是由相应的基数词加词尾th构成。例：fourthfourth sixthsixthseventhseventhtenthtenth下面这些基数词在变为序数词时，有特殊的变化。例：onefirst twosecond threethird fivefifth eighteighthnineninth twelvetwelfth十位整数序数词的构成方法是将基数词的词尾y变成i，然后再加eth。例：twentytwentieth thirtythirtiethfortyfortieth ninetyninetieth两位或两位以上的基数词变成序数词时，仅将个位数变成序数词。例：twenty-onetwenty-firstthirty-fivethirty-fifthahundredandfifty-threeahundredandfifty-thirdCardinal numbers Ordinal numbers 1 one 1st=first 2 two 2nd=second3 three 3rd=third4 four 4th=fourth5 five 5th=fifth6 six 6th=sixth7 seven 7th=seventh8 eight 8th=eighth9 nine 9th=ninth10 ten 10th=tenth 11 eleven 11th=eleventh12 twelve 12th=twelfthCardinal numbers Ordinal numbers 13 thirteen 13th=thirteenth14 fourteen 14th=fourteenth15 fifteen 15th=fifteenth 16 sixteen 16th=sixteenth 17 seventeen 17th=seventeenth18 eighteen 18th=eighteenth 19 nineteen 19th=nineteenth 20 twenty 20th=twentieth 21 twenty-one 21st=twenty-first 22 twenty-two 22nd=twenty-second23 twenty-three 23rd=twenty-third 30 thirty 30th=thirtieth Weusethecardinalnumberstotalkaboutthenumbersofpeopleorthings.e.g.TheCNToweris1,815feettall.Thereareabout8,000,000peoplelivinginLondon.Weusetheordinalnumberstotalkaboutdates,floors,positions,etc.e.g.WomensDayisontheeighthofMarch.Ourflatisontheseventhfloor.Heisalwaysthefirsttocometoschoolinourclass.1.Im13yearsoldandmysisteris15yearsold.Somysisteris_yearsolderthanme.(2012山东济南)A.oneB.twoC.threeD.four2._visitorscometoXingyiduringMayDayholidayseveryyear.(2012黔西南)A.ThousandsofB.TwothousandsC.ThousandofD.ThousandI.Choose the best answer.3.Howwasyourweekend?Great!Itwasmygrandfathers_birthday.Weenjoyedourselves.(2012广东)A.seventyB.seventiethC.theseventiethD.seventeenth4.Hewrotehis_novelwhenhewas_.(2011湖北恩施)A.five;fiftiesB.fifth;fiftyC.fifth;fiftieth5.Pleaseturntopage_andlookatthe_pictureinthisunit.(2012山东聊城)A.twentieth;oneB.twenty;oneC.twentieth;firstD.twenty;first6.Ifa=3andb=4,whatstheanswertotheproblem:a+b+1=?Theansweris_.(2012四川宜宾)A.twelveB.nineC.eightD.seven7.WhereisClass_?Itsonthe_floor.（2013天津）A.Six;thirdB.Sixth;thirdC.Six;threeD.Sixth;three8.Itssaidthat_ofthewateraroundtheworld_polluted.(2013黄石)A.twothird;has B.twothirds;haveC.twothird;are D.twothirds;is1.Hishouseisonthe_(九)floor.2.Mayisthe_(five)monthofayear.Itsthebesttimeforhiking(徒步旅行).3.Thereare_(四十)studentsinhisclass.Healwayscomesthe_(第四十).4.IsBrianher_(第一个)or_(第二个)child?II.根据提示完成下列句子。ninthfifthfortiethfortyfirst secondPreviewIntegratedskillsonPages13and14.Learntotalkabouthomes.1.Read and remember the numbers.2.Do the exercises B1 and B2 on Page 12.
