可数名词单数变复数ppt.ppt

Whatsthis?,Itsanapple.,Whatarethese?,Theyaretwoapples.,-Whatarethese?,-Whatsthis?,-Itsapen.,-Theyarepens.,-Whatarethose?,-Whatsthat?,-ItsanEnglishbook.,-TheyareEnglishbooks.,backpacks,watches,oranges,pens,-Whatarethese?-Theyre.,maps,cases,keys,-Whatarethose?-Theyre.,可数名词是指能以数目来计算，可以分成个体的人或物，因此它有单数，复数两种形式。,可数名词变复数,单数,复数,可数名词,如何变化？,规则变化,1、一般情况词尾加s浊辅音和元音后读z清辅音后读s,例词bagbagsbgzcupcupskpsrowrowsruz,name,pen,book,ruler,namesnemz,penspenz,booksbks,rulersru:lz,2、以s,x,ch,sh等结尾的词，词尾加es，读iz。,例词：boxboxesbksizwatchwatcheswtizclassclasseskl:siz,bus,busesbsz,foxesfksIz,dishesdz,grass,grassesgr:sz,3、以ce，se，ge等结尾的词，词尾加s，读iz。,例词casecaseskeisizraceracesreisizbridge-bridgesbrdizexercise-exercisesekssazz,4、以“辅音字母+y”结尾的词变y为i，再加es，读z。,例词：lobbylobbieslbizdutydutiesdju:tizfamilyfamiliesfmiliz,lady,citiessitiz,strawberriesstr:briz,ladiesleidiz,5、以“元音字母+y”结尾的词，词尾加s，读z。,例词：boyboysbiz,key,wayswez,toystz,keyski:z,monkey,monkeysmkz,6、以fe或f结尾的词通常情况下变f为v加es，读vz。,例词：leafleavesli:vzthiefthievesi:vzwifewiveswaivz,knivesnavz,halvesh:vz,wolveswlvz,calvesk:vz,“小偷”(thief)的“妻子”(wife)用“刀子”(knife)和“树叶”(leaf)把“狼”(wolf)劈成两“半”(half)。,巧记：,7部分已f结尾的名词复数还可直接加-s读s,safe,roofsrufs,chiefsti:fs,safessefs,9、以“辅音字母+o”结尾的名词，词尾加es，读z。,例词：heroheroeshiruzpotatopotatoespteituztomatotomatoestm:tuz,加-es的名词有:potato,tomato,hero,巧记:英雄爱吃土豆炖西红柿。,10、以“元音字母+o”结尾的名词词尾加s，读z。,例词：radioradiosreidiuzzoozooszu:zbamboobamboosbmbu:z,11个别以O结尾的名词可有两种复数形式,读音为z,mangosmangoes,mosquitosmosquitoes,mz,mski:tz,12、单复数同形，保持原音。例词：fishfishf,sheepsheepi:pcattlecattlektldeerdeerd(r),13、复数形式没有任何规律例词：manmenmenwomanwomenwmn,toothteethti:footfeetfi:tgoosegeesei:s,childchildrentldrnmousemicemas,14、除人民币元、角、外，美元、英镑、欧元等都有复数形式。,例词onedollartwodollarsonepoundtwopounds,名词变复数歌诀名词复数有变化，词尾常把-s加；结尾若是s,x,ch,sh,加上-es要记下；若遇f,fe,更要弄清其变化；先将它们变成v，然后再把-es加；y结尾要分清，两种情况必须明；不规则名词要注意，它的词形需牢记；中日友好不变化，英法联军a变e。,说明:表示某国人，通常在单数后面加s。但是（中国人）Chinese（日本人）Japanese单复数一样，（英国人）Englishman和（法国人）Frenchman只需把a变为e。,Activity1袜子配对：将成对的袜子连线并涂上相同的颜色,boy,boys,pen,pens,eyes,eye,desk,desks,dogs,dog,给下列可数名词加复数,bird-card-lady-orange-ruler-photo-friend-boy-watch-girl-case-cat-wife-tree-key-bed-hero-family-dictionary-question-leaf-party-cup-,birds,ladies,oranges,rulers,cats,boys,girls,cases,wives,watches,trees,keys,questions,beds,heroes,friends,families,dictionaries,photos,cards,leaves,parties,cups,activity2,Howmany_(book)arethere?Key:books,LucyandTomaremy_(friend).Key:friends,用所给的单词的复数的正确形式填空：1Ihavetwo_(pencil-box).2Therearethree_(chair)intheclassroom.3These_(tomato)arered.4_(hero)aregreat.5Mybrotherlooksaftertwo_(baby)6Therearesome_(deer)eatingthegrass.7Myfatherlikestoeat_(potato).8Chinese_(people)liketoeatnoodles.9Ihavealotof_(toy)inmybedroom.10Ihelpmymotherwash_(dish)inthekitchen.,选出正确形式1Icanseethree_inthezoo.AmonkeysBmonkeysCmonkey2.Thepighasfour_.footB.feetC.foots3.Mytwobrothersareboth_.policemanB.policemansC.policemen4.Therearefour_intheclass.JapaneseB.JapanesesC.Japan5.Icanseeten_inthepicture.A.sheepB.dogC.pig,6.The_hasthree_.boys,watchesB.boy,watchC.boy,watches7.Canyousee_ontheplate?A.breadB.breadsC.breades8.Thegirloftenbrushesher_beforeshegoestobed.toothB.toothsC.teeth9.MrBlackoftendrinksome_.A.milkB.milksC.milkes10.Therearesome_onthefloor.A.childB.waterC.books,句子单数变复数Thisi