名词单复数名词所有格物主代词用法及练习题.ppt

名词单数变复数名词单数变复数:1.加s2.以s,x,ch,sh结尾的名词加es3.以辅音字母+y结尾的名词,变y为i,再加es(desks,maps,pencils,teachers)(buses,boxes,watches)(family--familiesdictionary--dictionaries)区别key–keysboy--boys1.man,woman4.不规则变化:5.单复数同形(不变):sheep(绵羊)English(英国人)Chinese(中国人)4.ooee：foot(脚)tooth(牙齿)2.child（孩子）（男人，妇女）3.tomatopotatotomatoespotatoes(西红柿、土豆)feetteethmen,womenchildrenfamiliespendeskkeyboxfamilycardorangeboyfriendparentmotherfathersisterbrothersondaughtercousinwatchchildmanpencilsheepssssesssssssssss-children-men-sheepsessthis–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句子单数变复数句子单数变复数Thisisabook.Thatisaneraser.Itisaredapple.Iamaboy.He/Sheisateacher.What’sthis?Thesearebooks.Thoseareerasers.Theyareredapples.Weareboys.Theyareteachers.What’rethese?句子单数变复数句子单数变复数Thisisabook.Thatisaneraser.Itisaredapple.Iamaboy.He/Sheisateacher.What’sthis?Thesearebooks.Thoseareerasers.Theyareredapples.Weareboys.Theyareteachers.What’rethese?般情况加?-’s：(包括单数名词和不带词尾-s的复数名词)词尾-s的复数名词只加“?’”1、有生命名词的所有格Tom?and?Jim’s?room?用and连接的并列名词的所有格要分两种情况，即表示各自的所有关系时，要分别在并列名词后加-’s，表示共同的所有关系时，只在最后一个名词后加-’s：??汤姆和吉姆(各自)的房间???om’s?and?Jim’s?rooms