名词单数变复数变化规则:1.一般名词复数是在名词后面加上“s”,如map→maps,bag→bags,book-books等;2.以s,x,sh,ch结尾的词加“es”,如bus→buses,watch→watches,box-boxes等;3.以f或fe结尾的名词变复数时,去掉f,fe加ves的名词有:half→halvesknife→knivesleaf→leaveswolf→wolveswife→wiveslife→livesthief→thieves4.以o结尾的名词变复数时:a)加s的名词有(无生命):photo→photos,piano→pianos,radio→radiosb)加es的名词有(有生命):potato→potatoestomato→tomatoes5.以辅音字母+y结尾的词,变y为i加es,如baby→babies,family-families,study-studies等;以元音字母+y结尾的名词变复数时,直接加s变复数,如monkey→monkeys,holiday→holidays,storey→storeys(楼层);6.oo变ee的单词:foot-feet,goose-geese,tooth-teeth;7.a变e的单词:man-men,woman-women,policeman-policemen;8.复数与原形一致的单词:fish-fish,sheep-sheep,deer-deer,Chinese-Chinese,Japanese-Japanese;9.最特殊的一个:German-Germans.名词单数变复数的练习题一、写出下列名词的复数形式1、orange__________2、class___________3、monkey__________4、piano___________5、child___________6、shelf____________7、bed____________8、country__________9、family___________10、toy__________11、foot__________12、radio__________13、photo__________14、tomato___________15、woman___________16、knife________17、sheep__________18、ship__________19、dish___________20、mouse___________二、用所给的单词的复数的正确形式填空:1>Therearethree_____________(chair)intheclassroom.2>These_____________(tomato)arered.3>Mybrotherlooksaftertwo_____________(baby)4>Myfatherlikestoeat_____________(potato).5>Chinese_____________(people)liketoeatnoodles.6>Ihavealotof_____________(toy)inmybedroom.7>Mymotherwash_____________(dish)inthekitchen.8>Ihavetwo_____________(pencil-box).9>Therearesome_____________(bus)inthestreet.10>Monsterhaseight_____________(foot).三、选择填空()1.Icanseethree________inthezoo.AmonkeysBmonkeysCmonkey()2.Thepighasfour________.A.footB.feetC.foots()3.Mytwobrothersare________.A.policemanB.policemansC.policemen()4.Icanseeten_____inthepicture.A.sheepB.dogC.pig()5.The_____hasthree_____.A.boys,watchesB.boy,watchC.boy,watches()6.Canyousee_______ontheplate?A.breadB.breadsC.breades()7.Thegirloftenbrushesher_____beforeshegoestobed.A.toothB.toothsC.teeth()8.MrBlackoftendrinksome_________.A.milkB.milksC.milkes()9.Therearesome_____onthefloor.A.childB.manC.books()10.Lucywillhassome_______.A.photoB.photosC.photoes()11.Iamdrinkingtwo________.A.cupsofwaterB.cupofwaterC.cupsofwaters()12.Thecateatstwo_______onMonday.A.mousesB.miceC.mouse()13.Ineedapenandsome_____.A.booksB.deskC.chair()14.Thereare______intheroom.A.photosB.photoesC.photo()15.Thereissome_____intheriver.A.fishB.fishesC.fishs()16.There___two___inthebox.A.iswatchB.arewatchesC.arewatch()17.Wehavetoclean___everyday.A.ourtoothB.ourtoothsC.ourteeth()18.My_____roomisnexttothereadingroom.A.teacherB.teacher’sC.teachers()19.TomandJimare______.A.friendsB.friendC.brother()20.Howmany_____dotheyhave?A.pictureB.picturesC.apicture四写出下列名词的复数形式。1.bag_______2.orange_______3.family_______4.wish_______5.shelf_______6.knife_______7.key_______8.baby_______9.tooth_______10.foot_______11.woman_______12.sheep_______13.Japanese_______14.potato_______15.radio_______16.child_______17.fish_______18.photo_______19.Frenchman_______20.mandoctor_______21.watch_______22.bus_______23.sheep_______24.foot_____...