名词单数变复数专练PPT课件

.,1,名词单数变复数,.,2,WhatsthisinEnglish?,Itsanapple.,Whatarethese?,Theyaretwoapples.,.,3,-Whatarethese?,-Whatsthis?,-Itsapen.,-Theyarepens.,.,4,-Whatarethose?,-Whatsthat?,-ItsanEnglishbook.,-TheyareEnglishbooks.,.,5,backpacks,watches,oranges,pens,-Whatrethese?-Theyre.,.,6,maps,cases,keys,-Whatrethose?-Theyre.,.,7,单数,复数,可数名词,如何变化？,规则变化,.,8,1.一般情况下，直接在词尾加-s构成复数形式。,car,backpack,cars,backpacks,book,books,.,9,name,pen,card,ruler,names,pens,cards,rulers,.,10,练习一,dog-duck-chair-table-band-window-banana-tree-,dogsduckschairstableshandswindowsbananastrees,.,11,box,2.以s,x,ch,sh等结尾的名词，在词尾加-es构成复数形式。,boxes,class,classes,watch,watches,brush,brushes,.,12,bus,buses,foxes,dishes,.,13,练习二,glass-box-brush-match-class-bus-watch-,glassesboxesbrushesmatchesclassesbuseswatches,.,14,综合练习一,glass-desk-school-box-brush-hen-match-class-bus-eye-watch-,glassesdesksschoolsboxesbrusheshensmatchesclassesbuseseyeswatches,.,15,3.以“辅音字母+y”结尾的名词，应改y为i，再加-es。,family,families,comedies,.,16,4.以“元音字母+y”结尾的名词，直接在词尾加-s构成复数形式。,boy,boys,day,days,.,17,key,cities,strawberries,keys,.,18,练习三,city-day-boy-family-key-strawberry-baby-,citiesdaysboysfamilieskeysstrawberriesbabies,.,19,综合练习二,strawberrykey-glass-bus-boy-eye-watch-city-school-,strawberrieskeysglassesbusesboyseyeswatchescitiesschools,box-baby-family-brush-match-class-desk-hen-day-,boxesbabiesfamiliesbrushesmatchesclassesdeskshensdays,.,20,5.以f或fe结尾的名词，先将f或fe变成v，再加-es构成复数形式。,knife,knives,half,halves,“小偷”(thief)的“妻子”(wife)用“刀子”(knife)和“树叶”(leaf)把“狼”(wolf)劈成两“半”(half)。,.,21,wives,leaves,wolves,roofs,roof,.,22,“小偷”(thief)的“妻子”(wife)用“刀子”(knife)和“树叶”(leaf)把“狼”(wolf)劈成两“半”(half)。,巧记一：,.,23,妻子持刀去宰狼，小偷吓得发了慌；躲在架后保己命，半片树叶遮目光。按：wife（妻子），knife（小刀），wolf（狼），thief（小偷），shelf（架子），self（自己），life（生命），half（一半），leaf（树叶）。由self构成的复合词，其变化与self相同（如myselfourselves；yourselfyourselves；himelf，herself，itselfthemselves）。,巧记二：,.,24,练习四,wife-knife-wolf-thief-shelf-self-life-half-leaf-,wiveskniveswolvesthievesshelvesselvesliveshalvesleaves,.,25,综合练习三,wife-key-glass-knife-boy-eye-watch-city-school-,wiveskeysglassesbusesboyseyeswatchescitiesschools,box-baby-family-brush-match-class-desk-hen-day-,boxesbabiesfamiliesbrushesmatchesclassesdeskshensdays,.,26,6.以o结尾的名词，有的加-s,有的加-es构成复数形式。,photo,photos,heroes,tomatoes,zoos,.,27,以o结尾的名词,表示无生命事物的名词，词尾加-s,表示有生命事物的名词，词尾加-es。,加-es的名词有:potato,tomato,hero,巧记:英雄爱吃土豆炖西红柿。,.,28,练习四,piano-zoo-potato-photo-tomato-radio-,pianoszoospotatoesphotostomatoesradios,.,29,Sumup:,1.一般情况下,直接在名词词尾加-s.,2.以s,x,sh,ch结尾的名词,在词尾加-es.,3.以辅音字母加y结尾的名词，要变y为i再加-es.,5.以f或fe结尾的名词，先将f或fe变为v,再加-es.,6.以o结尾的名词,表示无生命事物的名词加-s,表示有生命事物的名词加-es。,4.以“元音字母+y”结尾的名词，直接在词尾加-s.,.,30,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,.,31,综合练习三,familiesknivesbooksbedswolvesbusesshelveszoospotatoescitiesphotos,leafpianoboxtomatobrushwatchbagcatradioboystrawberry,leavespianosboxestomatoesbrusheswatchesbagscatsradiosboysstrawberries,familyknifebookbedwolfbusshelfzoopotatocityphoto,.,32,不规则名词复数变化一,deer-sheep-foot-tooth-goose-fish-Chinese-Japanese-,deersheepfeetteethgeesefishChineseJapanese,.,33,不规则名词复数变化二,man-woman-policeman-mouse-child-,menwomenpolicemenmicechildren,.,34,thisthatIyouhe/she/itam/is,these,those,we,you,they,are,单数复数,.,35,不规则名词复数变化三,this-that-I-me-you-he/she/it/-him/her/it-am/is-,thesethoseweusyoutheythemare,.,36,综合练习三,me-Chinese-tooth-mouse-fish-you-she-,watch-him-potato-shelf-child-woman-bag-,bus-box-photo-sheep-this-that-I-,usChineseteethmicefishyouthey,watchesthempotatoesshelveschildrenwomenbags,busesboxesphotossheep-thesethosewe,.,37,句子单数变复数Thisisabook.Thatisaneraser.Itisaredapple.Iamaboy.He/Sheisateacher.Whatsthis?,Thesearebooks.Thosear