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1、小升初名词课件可数名词的单数变复数(规则变化）１．直接在名词后加～s例：cake---cakes,leg---legs2.在以s,x,sh,ch结尾的名词后加～es例：dress-dresses,dish-dishes,watch-watches,box---boxes3.以o结尾的名词,一般加～s，但negro,hero,tomato,potato之后加～es顺口溜：黑人英雄爱吃西红柿和土豆。可数名词的单数变复数（规则变化）４．以辅音字母＋y结尾的名词，把y改为i再加～es：例：city---cities,family---families5
2、.以f或fe结尾的名词，变f或fe为v再加～es例：leaf-leaves,knife-knives,wife-wives但是下列单词直接加s,chief(首领),roof(屋顶),gulf(海湾)顺口溜：首领在屋顶看海湾。巧记以f或fe结尾的名称树叶半数自己黄妻子拿刀去割粮架后窜出一只狼就像盗贼逃命亡leafhalfselfwifeknifeshelfwolfthieflife名词单数变复数的发音规则情况构成方法读音规则例词一般情况词尾加-s(1)清辅音/p/,/k/,/t/,/f/等后读/s/maps,books,boats(2)在浊辅/b
3、/,/d/,/g/,/η/,/l/,/m/,/n/等和元音后读/z/verbs,birds,bags,kings,hills,names,pens,cars,trees以-s,-sh,-ch,-x结尾的名词词尾加-es读/iz/buses,watches,wishes,boxes以-o结尾的名词词尾加-s或-es读/z/radios,kangaroos,heroes,potatoes以-y结尾的名词(1)以辅音字母+y结尾的名词，变y为i加-es读/iz/cities,babies(2)以元音字母+y结尾的名词，加s读/z/days,boys,
4、toys以f或fe结尾的名词变f或fe为v，再加es读/vz/knives,leaves写出下列各词的复数形式：1.tomato2.city3.boy4.radio5.self6.fly7.photo8.house9.box10.wife11.Sunday12.class13.zoo14.exam15.beach16.wish17.glass18.leaf19.student20.baby21.potato1.单复数同形的名词：中国人，日本人都非常喜欢绵羊，鱼和鹿．ChineseJapanesesheepfishdeer可数名词的单数变复数（不
5、规则变化）2.单复数不同形（特殊名词的变化）：1)改变中间元音foot—feettooth—teethgoose—geeseman—menwoman—womenmouse-mice2)词尾加-en或-renchild—childrenox—oxen3）mouse—mice老鼠总结：男人，女人a变e,小孩后加ren，公牛后加en,老鼠mouse变mice,鹅的牙和脚oo变ee，可数名词的单数变复数（不规则变化）写出下列各词的复数形式：tomato,city,boy,radio,leaf,fly,photo,mouse,box,wife,Sunda
6、y,class,Chinese,zoo,exam,German,sheep,fish,beach,wish,glass,leaf,student,deer,baby,potato句子单数变复数：1.Be动词的改变：am/is---are2.代词的变化：I—wehe/she/it—theyme—ushim/her/it—themmy—ourhis/her/its—theirthis—thesethat–those3.去掉a或an4.名词单数变成复数Exercises用所给名词的适当形式填空:1.Arethereany(peach)onthetab
7、le?2.Theyaresomeyoung(woman).3.The(children)isplayinginthegarden.4.Some(goose)areswimmingintheriver.5.Wouldyoulikesome(fish)?6.Howmany(radio)canyouseeonthebookcase?7.Arethereany(boy)inthelibrary?8.Onepolicemancaughtthree(thief)yesterday.Exercises请用is/are填空．1.Theresomewaterin
8、thebottle.2.Thereanorangeonthetable.3.Theremanyfishinthepool.4.Theresomelea
