名词单复数 (原创) 2.ppt

名词单数变复数;--What are these?;--What are those?;This is an apple.;This is a/an…… These are……;归纳：;名词单数变复数 (一)规则变化:;4.以o结尾的可数名词 除了 heroes/negroes/tomatoes/potatoes, 其他的加S(黑人和英雄，爱吃土豆和番茄);(二)不规则变化:;pen desk key box knife card orange boy friend car parent mother father sister brother son daughter cousin family child man pencil sheep;this – that – I – you – he / she / it – am / is – ;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– ;句子单数变复数 This is a book. That is an eraser. It is a red apple. I am a boy. He / She is a teacher. What’s this ? ;Summary: 单数句变复数句： ①指示代词 this→these, that→those ②人称代词 I→we , you不变，she/he/it→they ③be 动词 am/is→are ④可数名词 单→复 P86;句型转换 1.What’s this ? （单数句变复数句）