名词单数变复数七年级英语课件

women1加es:potatoes(土豆)tomatoes(西红柿)Chinese(中国人)Japanese(日本人)6ooee：foot(脚)tooth(牙齿)goose(鹅)5以f/fe结尾的，fathers，x，名词单数变复数--Whatarethese?--What’sthis?--It’sapen--Theyarepens--Whatarethose?--What’sthat?--It’sanEnglishbook--TheyareEnglishbooksbackpackswatchesorangespens--What’rethese?--They’re…mapscaseskeys--What’rethose?--They’re…名词单数变复数(一)规则变化:1加s2加s，再加es(mothers，sh结尾的名词加es3以辅音字母加y结尾的名词，再加eswife(妻子)knife(小刀)shelf(架子)leaf(叶子)wolf(狼)3child（孩子）children（男人，变f为v，orangescats，brothers)(buses，sisters，watches)(family--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)2man，womanmen，在/d/后读/dz/∫desksmapsbrotherspensclasses，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/，boxes，先改y为i，ch，watches，friendspendeskkeyboxknifecardorangeboyfriendparentmother，