《名词单数变复数》PPT课件

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1、名词单数变复数--Whatarethese?--What’sthis?--It’sapen.--Theyarepens.--Whatarethose?--What’sthat?--It’sanEnglishbook.--TheyareEnglishbooks.backpackswatchesorangespens--What’rethese?--They’re….What’sthis?It’s_______.Whatcolorisit?It’s______.It’s_________ruler.aruleror

2、angeorangean复数句：Whatarethese?Theyarerulers.Whatcolorarethey?They’reorange.Theyareorangerulers.单数句mapscaseskeys--What’rethose?--They’re….名词单数变复数(一)规则变化:1.加s2.加s,x,ch,sh结尾的名词加es3.以辅音字母加y结尾的名词,先改y为i,再加es(mothers,fathers,sisters,brothers)(buses,boxes,watches)(fa

3、mily--familiesdictionary--dictionaries)区别key–keysboy--boys(二)不规则变化:4.单复数同形(不变):sheep(绵羊)deer(鹿)fish(鱼)2.man,womanmen,women1.加es:potatoes(土豆)tomatoes(西红柿)Chinese(中国人)Japanese(日本人)6.ooee：foot(脚)tooth(牙齿)goose(鹅)5.以f/fe结尾的,变f为v,再加eswife(妻子)knife(小刀)shelf(架子)lea

4、f(叶子)wolf(狼)3.child（孩子）children（男人，妇女）名词单数变复数后s/es的读音1.在清辅音后读/s/2.在元音和浊辅音后读/z/3.在/s//z//∫////t//d/后读/iz/4.在/t/后读/ts/，在/d/后读/dz/∫desksmapsbrotherspensclasses,watches,orangescats,friendspendeskkeyboxknifecardorangeboyfriendparentmotherfathersisterbrothersondau

5、ghtercousinfamilychildmanpencilcasesheepssssesknivessssssssssssfamilieschildrenmenssheep句子单数变复数Thisisabook.Thatisaneraser.Itisaredapple.Iamaboy.He/Sheisateacher.What’sthis?Thesearebooks.Thoseareerasers.Theyareredapples.Weareboys.Theyareteachers.What’rethese?

6、this–that–I–you–he/she/it–am/is–thesethoseweyoutheyare单数复数一、写出下列单词的复数I--2.am--3.he–4.pencil--5.watch--6.dictionary--7.man--8.it--9.parent--10.boy–wearetheypencilswatchesdictionariesmentheyparentsboys二、句型转换1.Thisismymother.1）变否定句2）变一般疑问句，并作肯定回答Thisisnotmymoth

7、er.Isthisyourmother?Yes,it/sheis.2.Thatisacar.1）变否定句2）划线提问3)变复数句Thatisnotacar.What’sthat?Thosearecars.3.That’sanEnglishdictionary.1）变否定句2）变一般疑问句，并作否定回答That’snotanEnglishdictionary.IsthatanEnglishdictionary?No,itisn’t.4.Herfamilyname’sSmith.5.Myjacketislightb

8、lue.6.is,that,brother,my,Dave组词成句划线提问划线提问What’sherfamilyname?Whatcolorisyourjacket?Thatismybrother,Dave.句型转换1.What’sthis?复数What’rethese?2.He’saChineseboy.复数They’reChineseboys.3.Thisisabike.否定句复数