江苏省大丰市第七中学九年级英语《数词与名词》专题复习教案1.英语中的数词分为两种:基数词与序数词。基数词表示事物的多少,序数词表示事物的顺序,往往与定冠词the连用。请熟记下面的表格:onefirst1sttwelvetwelfth12ththirtythirtieth30thtwosecond2ndthirteenthirteenth13thfortyfortieth40ththreethird3rdfourteenfourteenth14thfiftyfiftieth50thfourfourth4thfifteenfifteenth15thsixtysixtieth60thfivefifth5thsixteensixteenth16thseventyseventieth70thsixsixth6thseventeenseventeenth17theightyeightieth80thsevenseventh7theighteeneighteenth18thninetyninetieth90theighteighth8thnineteennineteenth19thninety-fiveninety-fifth99thnineninth9thtwentytwentieth20thonehundredonehundredth100thtententh10thtwenty-onetwenty-first21steleveneleventh11thtwenty-sixtwenty-sixth24th2.英语中有几个比较重要的数字单位,例:ten,dozen(一打,十个),score(二十个),hundred,thousand,million,billion,这些单位前有数字时不加s。英文中数字从右向左三位一逗号,读数时千位与百位之间通常不加and,百位与十位间需要加and,例:500,fivehundred,16800:sixteenthousandeighthundred,17823697:seventeenmillioneighthundredandtwenty-threethousandsixhundredandninety-seven。注意在英语中没有“万”与“亿”,tenthousand表示一万,onehundredmillion表示一亿。3.表示一个不确定的数目时,以上数字单位可以用复数,后面接of短语,例:tensof,dozensof,scoresof,hundredsof,thousandsof,millionsof,billionsof,tensofmillionsof。以上所有词组前不可加具体数字,但可以用many,several等不确定的数词来修饰。4.英语中年份虽然也用数字表示,但读法与数字不同,例:1830:eighteenthirty,1956:nineteenfifty-six。大于2000的年份可用数字读法,2008:twothousandandeight。5.与9有关的所有数字,除第九(ninth)去e外,其余均不去e。6.inone’stwenties(20s)表示在某人二十多岁时,其余年龄段以此类推;inthe1980s(nineteeneighties)表示在20世纪80年代;intheseventeencentury表示在17世纪,注意世纪前加入序数词;识记一些固定搭配,例:No.10MiddleSchool,ClassThree,RowFive,CCTV-9。7.一半用half表示,四分之一用quarter表示;数字中的小数点读成point,例1.2m读成onepointtwometers(作为复数);两天半可以有两种表达:twodaysandahalf或twoandahalfdays;在分数中分子用基数词,分母用序数词,若分子大于1,则分母序数词用复数形式,例:1/3(onethird),3/4(threefourths或quarters),9/10(ninetenths)。8.月份讲法涉及数字,写法可用基数词或序数词,但读时需要加上the,例:March6(或6th)读成Marchthesixth;July1(或1st),1949读成Julythefirst,nineteenforty-nine。9.加减乘除在英语中的运用:8+4=?What’seightplus(或and)four?8-4=?What’seightminusfour?8×4=?What’seightmultipliedbyfour?8÷4=?What’seightdividedbyfour?练习:I。请用英语说出以下数字及表达:inher50s;onNovember12th,2003;3.75m;1/4;5/7;7/11;in1987;in1564;ZJTV-5;onhis14thbirthday;in1970s;Class4;548;9788;34215;385692。II。用适当的数词填空(InEnglish):1.-What’s11plus20?-It’s__________.2.Chinahasthelargestpopulation.Butwhichcountryhasthe__________largestpopulation?3.Septemberisthe__________monthoftheyear.4.-Whatclassareyouin?-I’minClass__________(8).5.Thereare___________minutesinanhour.6.ThePRCwasfoundedonOctober1,1949.HowwillyousaythisyearinEnglish?7.Hishairturnedwhitewhenhewasonlyinhis__________(40s).8.Thetrainwillleaveat9:00.It’s7:30now.Wehavestill________________________left.9.____________(3/4)ofthelandiscoveredbyforestsinHolland,thecountryofflowers.10.Dinosaursdisappearedabout________________(65000000)yearsago.名词1.名词可...