Module 9 FamilyUnit1 This is my mother外研版三年级英语上册课件a bookbooksThat is a book.This is a book.These are books.Those are books ,too.These are my erasers.Those are your pencil sharpeners.This is an orange.These are oranges.That is her pencil.Those are her pencils.Is that his pencil case? Yes,it is. No, it isn’t. Is this your pencil?Are these your keys?Yes, they are.Are those her pens?No, they aren’t.A:Are these your ……?A :Are those your ….?B :Yes ,they are .B:No,they aren’t.be 动词表示“是”，有三个： am ,is, are.我（ I ）用 (am),你 (you ) 用 (are),is 连着他 (he) 、她 (she) 、它 (it),单数跟 is 后，复数全部都用 are.单数复数thisthatis/amthesethoseare变为疑问句：1.This is my clock.2.That is your ring.3.These are her books.4.Those are his oranges.5.Those are my backpacks.Is this your clock?Is that your ring? Are these her books?Are those his oranges?改错：1.Are this your book?2.Those is my pen.3.Is these his pencils?4.Are those her ruler?Is this your book?/Are these your books?That is my pen./Those are my pens.Are these his pencils?Are those her rulers?Are those your backpacks?5.Are they your books?Yes,they’re.Are they your books?Yes,they are.1. 一般直接加 s ， 如 pen—pens,eraser—erasers,book—books. 2. 以 o.s.x.sh.ch. 结尾的加 es, 如 watch---watches. 3. 以辅音字母加 y 结尾的，变 y 为 i 再加 es, 如 family---families,dictionary--dictionaries. 4. 以 f 或 fe 结尾的变 f 或 fe 为 v 再加 es ， 如 knife( 小刀 )—knives. 5. 部分以“ o” 结尾加 es 如 potatoes ( 土豆） tomatoes （西红柿） 其他加 s, 如 photo--photos可数名词复数：把下列单数名词变成复数：pencil baseball game notebook ring rulerpencils baseballs games notebooks rings rulerswatch fish bus box potato tomato Watches fishes buses boxes potatoes tomatoesfamily baby part...
