人教版七年级上语法教案--基数词和序数词

1Numbers--语法教案语法一、基数词(1)基数词的构成---表示数目多少的词叫基数词。1.1-12独立成词：one,two,three,four,five,six,seven,eight,nine,ten,eleven,twelve。2.13-19(+teen):thirteen,fourteen,fifteen,sixteen,seventeen,eighteen,nineteen。两个音节都要重读。3.20-90(整十位数+ty):twenty,thirty,forty,fifty,sixty,seventy,eighty,ninety。第一个音节重读。4.21-99间的两位数，先说“十位”，再说“个位”，中间要加连字符“-”5.101-999之间的三位数，先说“百位”，再加and,再加末尾两位数。e.g:onehundredandoneninehundredandninety-nine156—读作：709—读作：6.1000以上的大数，使用计数符号，每三位加以逗号，从第一个逗号起单位依次为thousand,million,billion.“万”表达为tenthousand【考考你】Theroadisover___________meterslong.A.sixhundredandfifty-twoB.sixhundredsandfifty-twoC.sixhundred,fifty-twoD.sixhundred,fiftyandtwo【关于基数词的重点与考点：】基数词表示顺序编号时：名词+基数词，此时两个词的首字母都要大些。ClassThreethethirdclassroomRoom5LessonOne【考考你】Now,everyone,pleaseturntoPage______andlookatthe______picture.A.Twelve;fifthB.Twelfth;fifthC.Twelve;fiveD.Twelfth;five确数与概数的表达。确数：基数词+单位+复数名词：twohundredstudents200名学生概数：单位加S+of+复数名词：thousandsofvisitors成千上万的游客“整十加S”用于表示“几十年代”或“某人几十多岁时”Inthe1960s,peoplehadtoleadapoorlife.在20世纪60年代，人们不得不过着贫困的生活。Heinventedmanythingsinhistwenties.他在20多岁时就发明了很多东西。【考考你】Mygrandmaisinher____________(八十多岁),butshecanstilltakecareofherself.语法二、序数词(1)序数词的构成表示顺序先后的数词叫序数词。Therearethreepersonsinclassroom.Third第三2First;second;third;序数词大多由基数词变形而成，所以掌握了基数词和基变序的方法，序数词也就简单啦。基变序的方法：基变序，有规律，词尾加上th;four-fourthsix-sixth一二三，单独记；八减t,九去e;first,second,thirdeighth,ninthve变f；遇y变ie,词尾再加th。five-fifthtwelve-twelfthtwenty-twentieth若遇几十几，只变个位就可以。twenty-two---------twenty-second注意：four—fourteen—forty—forty-twonine—nineteen—ninety—ninety-ninefourth—fourteenth—fortieth—forty-secondninth—nineteenth—ninetieth—ninety-ninth【考考你】--Howwasyourweekend?--Great!Itwasmygrandpa’s______birthday.Weenjoyedourselves.A.seventyB.seventiethC.theseventiethD.seventeenth【序数词的考点：】序数词表示顺序时,其前要加the,后面接单数名词。Thesecondpictureisverybeautiful.ThefourthstudentcomesfromAmerica.【考考你】Jackgotthe_______________(four)placeinthe100-metrerace.表示日期中的“日”。如2013年9月19日，表示为“September19th,2013”;读作：Septemberthenineteenth,twothousandandthirteen序数词的缩写：1st2nd3rd4th20th63rd78th序数词表示编号顺序时：UnitOne=thefirstunitPartTwo=thesecondpart几种特殊数词的表示方法：普通分数：）eg:1/3:onethird2/3:twothirds1/2:读作ahalf或onehalf1/4读作aquarter或onefourtheg:Twothirdsoftheearthiscoveredbywater.百分比：基数词+percent(percent)2%读作twopercent27%读作twenty-sevenpercenteg:Over25percentofthesurfaceofthegroundiscoveredwithgrass.习惯表达oneandahalfapples=oneappleandahalf一个半苹果halfanapple半个苹果oneortwoapples=oneappleortwo一两个苹果10:30halfpastten10:25twenty–fivepastten9:45fifteentoten或aquartertoten3语法三、加减乘除---数字的运算加法：3plus9is/equals12.减法：9minus3is/equals6.乘法：3multipliedby9is/equals27.除法：9dividedby3is/equals3.=:is/equals+:plus-:minus*:multipliedby/:dividedby都是表示加减乘除的介词。用于读出已列的算式。eg:--Whatis2plus3?--2plus3is5.而出题者通常用“加减乘除”的动词原形来开头,构成祈使句,命令做题者。AddAandBSubtractAfromBMultiplyAbyBDivideAbyBIfweadd2to5,wecanget7.Multiply2by3,please.【考考你】Everyweek,XiaoYingplanstouse180minutestopracticeherlistening.Accordingtothetable,ittakesher_________hour(s)todoitonweekdays.XiaoYing’slisteningplanDay.Mon.Tue.Wed.Thu.Fri.Sat.Sun.Minute202525202040A.1B.2C.3【即学即练：】(1)用英语读出下列算式：4+5=96*6=3648-11=3715/3=5语法针对练习一、用所给词的适当形式填空1.Tom’smomgavehimanicegiftonhis________(eight)birthday.2.--What’sthedatetoday?--It’sSeptemberthe_____________(thirty).3.Mr.Wuaskedhisstudentstoturntothe__________(fifty-nine)page.4.Heopeneduphisowncompanyinhis______________(twenty).5.Howhappywearelivinginthe________(twenty-one)century!二、根据汉语提示完成句子。1.KateandMaryarein__________(三年级五班).2.IwasborninShanghaion_________________(1999年10月17日).3.She’sbeenawayfromLondonfor________________(三天半).4.Itwasalonelyvillagein_________(20世纪80年代)，butnowtherearemanytallbuildingsinit.5.Takethe______________(第二)turningonyourleftandyou’llseethemuseum.三、单项选择1.Thereare______workersinthisfactory.4A.twohundredsandthirty-sixB.twohundreds,thirty-sixC.twohundredandthirty-sixD.twohundred,thirty-six2.Thereare______monthayear.Decemberisthe_______monthoftheyear.A.twelve;twelveB.twelfth;twelveC.twelve;twelfthD.twelfth;twelfth3.--CouldyoutellmewhenConfuciusbegantoteach?--Sure.Hebegantoteachwhenhewasinhisthirties.(划线同义替换)A.atthirtyB.morethanthirtyC.thirtyD.attheageofthirty4.--What’sthetimenow?--It’s_______.A.teno’clockB.ThursdayC.June15D.morning5.--Whatclassareyouin?--I’min_____________.A.classnineB.class9C.ClassnineD.ClassNine四、链接中考1.Ourteamwonthe____________(第二)placeinthecompetition.2.TinacomplainsthatwaitingforSallyalways____________(make)herangry.3.Readingmorehelps___________learnbetter.A.weB.ourC.usD.ours4.--We’llgoforapicnicifit________thisSunday.--Wishyoualovelyweekend.A.rainB.doesn’trainC.won’train5.Weneedsomemorecoffee.Thereisonly________left.A.toomanyB.toomuchC.alittleD.afew6.--Iwon’thavetimetogoshoppingwithyouthisafternoon.--Butyou______meyesterday.A.orderedB.mentionedC.promisedD.knew7.Thelittlegirlistooshorttoreachtheorangeonthetable.Thelittlegirlisn’t____________________toreachtheorangeonthetable.8.Weplanted_______treeslastyear.A.hundredsofB.hundredofC.fivehundredsD.fivehundredof9.--Excuseme,whichisthewaytothemuseum?--Sorry,Idon’tknow.Thisismy_________time