四年级英语下册Unit 4课件1.ppt.ppt

文档介绍：What is this? I t ’ s ana pple . W hat are these ?T hey ’ re apple s. [’ pl] 一、绝大多数的可数名词的复数形式,是在该词末尾加上后辍-s。例: friend → friend s; cat → cat s; apple → apple s. 二、凡是以 s、z、x、 ch 、 sh 结尾的词,在该词末尾加上后辍- es 构成复数。例: bus → bus es ; box → box es ; watch → watch es . 三、以-o结尾的名词,如果不是外来词或缩写,就加- es ,否则加-s构成复数。例: tomato → tomato es ; potato → potato es ; 反例: photo → photo s; piano → piano s 四、以-f或- fe结尾的名词,多为将-f或- fe改变为- ves ,但有例外。例: knife → kni ves ; life → li ves ; leaf → lea ves ; What are these ?T hey ’ re gra pe s. W hat are those ?T hey are [ gr p] pi ne a pple s. [’ p n pl] What are these ?T hey ’ re ora nge s. W hat are those ?T hey are [’ r n ] watermelon s. [’ w t mel n] What are these ?T hey ’ re peach es . W hat are those ?T hey are [p ] banana s. [b ’ n n ] I’ d like … I would 我想要