高中英语数词专题教案

高中英语数词专题教案适用学科英语适用年级高二教师姓名适用区域珠海课时时长2小时学生姓名知识点1．掌握基数词、序数词、分数词、倍数、百分数、年月日、钟点、年龄、序号的基本用法。2．掌握不定数量词、约数词的表达方法。教学目标使学生掌握数词的用法教学重点掌握基数词、序数词、分数词、倍数、百分数、年月日、钟点、年龄、序号的基本用法。教学难点熟练使用数词。教学过程一、复习预习高考重点要求：1．掌握基数词、序数词、分数词、倍数、百分数、年月日、钟点、年龄、序号的基本用法。2．掌握不定数量词、约数词的表达方法。数词在各个题项中，单选、阅读、听力、写作中发挥着很强的作用，往往用以说明事实的精确性和可信性。数词是由两大部分构成的即基数词和序数词，而其他数字表示法如分数，小数等均由这两大部分的不同组合而构成。二、知识讲解与例题精析（一）基数词：表示数目的词为基数词，它的构成如下表：（二）序数词：表示顺序的数词为序数词，它的构成如下表：（三）数词的用法：1.英语中年月日、点钟、序数词、分数词、算式列表示例英语表示法2001．6．30June30,200130June,200130thJune,20017：25seventwenty-fivetwenty-fivepasteven12:54twelvefiftyfoursixtoone9:15ninefifteenaquarterpastnine2:30twothirtyhalfpasttwo21:50twenty-onefifty9:.第21twenty-first第123onehundredandtwenty-thirdahalftwoandtwo-fifths范围特点实例1~12无规律one,two,three,four,five,six,seven,eight,nine,ten,eleven,twelve13~19以teen为结尾thirteen,fourteen,fifteen,sixteen,seventeen,eighteen,nineteen20~90以ty结尾twenty,thirty,forty,fifty,sixty,seventy,eighty,ninety21~99十位与个位之间要加连字符“-”twenty-five,sixty-five,ninety-nine101~999百位与十位之间通常用andthreehundredandtwenty-five（美语中常将and省略）千以上6275—sixthousandtwohundredandseventy-five；1200—twelvehundred20%20percent20percent第七路公共汽车BusNumberSeven第201房间Room201人民路153号153RenminRoad4+8=12Fourpluseightistwelve11-7=4Elevenminussevenisfour.6×5=30Sixtimesfiveisthirty.20÷5=4twentydividedbyfiveisfour.A＞BAismorethanB.A＜BAislessthanB.A≈BAisapproximately(近似地,大约)equalstoB.A≠BAisnotequaltoB.2.约数表示法列表含义英语表达例句大于某数morethanHehaslivedhereformorethantwentyyears.oversheisoverfifty.ormoreThere'rethirtypeopleormoreinthemeeting-room.小于某数lessthanIhavelessthan(notmorethan)fiftydollars.underChildrenundersevenarenotallowedtoenter.belowHewouldnotsellitforbelowahundredfiftydollars.orlessThecoatmightcosthimsixtydollarsorless.大约（某数）nearlySheisnearlyfiftynow.almostItsalmostthreeo'clock.uptoUptotenmencansleepinthistent.orHespentfourorfivedayswritingthearticle.orsoThedistanceistwentymilesorso.aboutIvisitedthatvillageaboutthreeyearsago.someTheirteamhassomefourorfiveplayers.moreorThecontainercanholdmoreorlesstwentypoundslessofwater.around/roundLet'smakeitround/aroundeighto'clock.3.不定数量词“多”的表示法列表被修饰名词的数英语表达汉译修饰可数名词dozensof几十、许多scoresof许多many,agood(great)many,manya(饰单数可数名词)许多、大量hundredsof数以百计thousandsof,thousandsuponthousandsof成千上万millionsof数百万billionsof亿万修饰不可数名词much,agreat(good)dealof,alargeamountof,largeamountsof许多、大量修饰可数名词或不可数名词alotof/lotsof,plentyof,alargequantityof,largequantitiesof许多、大量三、课堂运用1.Two__diedofcoldlastwinter.A.hundredsoldpeopleB.hundredoldpeopleC.hundredsoldpeoplesD.hundredoldpeoples2.Hewasonlyin__atthetime.A.his20'sB.the20'sC.histwentiesD.thetwenties3.Thetwogreatmenwrotethoselettersin__.A.1870'sB.1879sC.the1870'sD.the18704.IwonderifIcanaskhim__time.A.fourB.fourthC.thefourthD.afourth5.Hecameout__inthetrackevents.A.firstB.oneC.thefirstD.theone6.Itwasin1939that__brokeout.A.WorldWarSecondB.theWorldWarSecondC.SecondWorldWarD.WorldWarII7.You'llhavetospend__writingyourreporthere.A.onedayortwodaysB.onedayortwoC.adayortwoD.twodaysorone8.Hecutthecake__.A.inhalvesB.inhalfC.intohalvesD.intohalf9.Theearthisnearly__themoon.A.50timethesizeofB.50timesthesizeofC.50timesassizeasD.50timesasthatof10.Eitheryouortheheadmaster__theprizesforthesegiftedstudentsatthemeeting.A.ishandinginB.aretohandoutC.arehandinginD.istohandout11.__ofthepopulationherearepeasants.A.20percentsB.20percentC.the20percent20percents12.It'sabout__,thethicknessofahumanhair.A.two-fifteenthB.two-fifteenthsC.twofifteenD.twofifteens13.Thepriceofsuchmaterialwasreduced__.A.by18percentB.to18percentC.at18percent18percent14.Southoftheequator,81percentofthesurfaceoftheearth__water.A.isB.areC.wasD.were15.Theysold__boxesofsuchsweetslastweek.A.fourdozenB.fourdozensC.fourdozensofD.fourdozenof16.Ittookme__daystofinishdrawingabeautifulhorse.A.ahalfdozenB.halfadozenC.haftdozensD.halfdozenweresenttheretohelpfightagainsttheflood.A.ThreescoresofB.ThreescoreofC.ThreescoreD.Threescores18.Don'tleaveyouwork,__.A.donehalfB.halfdoneC.ahalfdoneD.doneahalf19.Nobodycandotwothingswell__.A.atonetimeB.atonceC.onetimeD.once20.Hehas__booksinhisstudy.A.severalthousandsB.somethousandsofC.somethousandsD.somethousandof21.OnNationalday__peopletakepartinallkindsofcelebration.A.hundredsofmillionsofB.millionsofhundredofC.hundredsmillionsofD.millionshundredsof22.Hehaslivedat__for30years.A.No.101HepingStreetB.101HepingStreetC.HepingStreet101D.HepingstreetNo.10123.Youcanfindhimin__.A.Room201RoomC.theRoom20D.the201Room24.It's__walkfromheretomyschool.A.two-hoursB.twohoursC.two-hourD.atwo-hour25.Itwasin__whenhewasalreadyin___thathewenttoYan'an.A.the1940s,the40sB.the1940s,hisfortiesC.1940's,hisfortiesD.the1940's,his40s课程小结课后作业1.Hewenttothemarketandbought__eggsandsomemeat.A.threedozenofB.threedozenC.threedozensD.threedozensofaftertheaccidenttwo___policeweresenttothespottokeeporder.A.dozenofB.dozensC.dozenD.dozensof(MET9229)Smith___metobuyseveral__eggsforthedinner.A.asked,dozenB.suggested,dozensofC.had,dozenD.persuaded,dozensof('94上海)thelandinthatdistrict___coveredwithtreesandgrass.A.Twofifth,isB.Twofifth,areC.Twofifths,isD.Twofifths,are(2000上海)___diedofcol