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1、指示代词this,that.these.those单数复数用法this:这these:这些指距离较近的人或物that:那those:那些之距离较远的人或物注意is/are的使用： this/that+可数名词单数 或 不可数名词+ is these/those可数名词复数（不可以加不可数名词）+are例：离你较近的时候： this duck这个鸭子 these ducks这些鸭子 离你较远的时候(经常与over there连用)： that duck 那个鸭子 those ducks那些鸭子常见句型：1. Whatisthis/that?这是/那是什么？ Itsa/an.它是.2. Isthi
2、s/that.?这是/那是.吗？Yes,itis.是的，它是。No,itisnt.不，它不是。3. Whatarethese/those?它们是什么？Theyare.它们是.4. Arethese/those.?这些/那些是.吗？Yes,theyare.是的，它们是。No,theyarent.不，它们不是。【补充部分：名词规则变化】1、一般情况（包括以e结尾的名词） ,加-s 例：cup(杯子)-cups, cat-cats, cakecakes, flag(旗子)-flags, face(脸)faces2、以s,x,ch,sh结尾 ,加-es 例：class(班级)-classes, box
3、(盒子)-boxes, watch(手表)-watches, brush(刷子)-brushes3、以辅音+y结尾变y为ies 例：city(城市)-cities, country(国家)-countries, study(书房)-studies 注意：以元音+y结尾,加-s boy-boys, ray(光线)-rays, day-days4、以o 结尾 有生命加-es 例：mango(芒果)-mangoes, hero(英雄)-heroes, tomato(西红柿)-tomatoes, potato(土豆)-potatoes 没生命加-s 例：zoo(动物园)-zoos, photo(照片)
4、-photos, piano(钢琴)-pianos5、以f,fe结尾变f,fe为ves 例：leaf(叶子)-leaves, knife(小刀)-knives, wife(妻子)-wives练习：一单选( )1.-Look，whatis_? -Itsaneraser. A .this B.that C.these D.those( )2.Are_yourwatchesoverthere? A.this B.that C.these D.those( )3._thisyourfriend? A.is B.Are C.Is D.are( )4._thosehisdictionaries? A.is
5、 B.Are C.Is Dare( )5.-IsthatMarysschoolbag? -_ A.Yes,itisnt. B.No,itis. C.Yes,its. D.No,itisnt.( )6.-Isthisyourfriend? -_ A.Yes,heis. B.Yes,itis. C.No,itsnot. D.Yes,Iam.( )7.-AretheseHelenspencils? -_ A.Yes,theyre. B.No,theyare. C.Yes,theyare. D.No,itis.( )8.-Whatarethose? -_ A.Theyarebox. B.Theyare
6、boxes. C.Itsabox. D.Yes,theyare.( )9.-WhatisthisinEnglish? -_ A.Itsaneraser. B.Itsaeraser. C.Itsmyaneraser. D.Itsmyeraser.二 用amisare填空。1，How_ you?I_ fine.2,This_ mybrother.Hisname_ Peter.He_ five.3,What_ yourname?I_ Kate.4,Who_she?She_ mymother.答案：1.are am 2.is is is 3.is am 4.is is三 按要求改写句子1.Isthisyourpen?(作否定回答)_2. ArethoseKatesparents?(作肯定回答)_3. Theseareoranges.(对划线部分提问)_4. Thosearemycousins.(对划线部分提问)_5. Isthisherdictionary?(改为复数)_6. Thosearentmywatches.(改为单数)_
