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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+isthese/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：thisduck这个鸭子theseducks这些鸭子离你较远的时候(经常与overthere连用)：thatduck那个鸭子thoseducks那些鸭子常见句型：1.What is this/that?这
2、是/那是什么？It’s a/an...它是... 2.Is this/that...?这是/那是...吗？Yes,it is.是的，它是。No,it isn’t.不，它不是。 3.What are these/those?它们是什么？They are...它们是... 4.Are these/those...?这些/那些是...吗？Yes,they are.是的，它们是。No,they aren’t.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,
3、cat-cats,cake－cakes,flag(旗子)-flags,face(脸)－faces2、以s,x,ch,sh结尾,加-es例：class(班级)-classes,box(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-sboy-boys,ray(光线)-rays,day-days4、以o结尾有
4、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)-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，what is _____?-It’s an eraser. A.thi
5、s B.that C.these D.those ()2.Are _____your watches over there? A.this B.that C.these D.those ()3.______this your friend? A.is B.Are C.Is D.are ()4.______those his dictionaries? A.is B.Are C.Is Dare ()5.-Is that Mary’s schoolbag?-_________ A.Yes,it
6、 isn’t. B.No,it is. C.Yes,it’s. D.No,it isn’t. ()6.-Is this your friend?-_______ A.Yes,he is. B.Yes,it is. C.No,its not. D.Yes,I am. ()7.-Are these Helen’s pencils?-_______ A.Yes,they’re. B.No,they are. C.Yes,they are. D.No, it is.()8.-What are those
7、?-______ A.They are box. B.They are boxes. C.It’s a box. D.Yes,they are. ()9.-What is this in English?-______ A.Its an eraser. B.It’s a eraser. C.It’s my an eraser. D.It’s my eraser. 二．用am is are填空。 1，How______you ? I______fine. 2,This______ my brot
8、her. His name______Peter. He______five. 3,What______your name ? I______Kate. 4, Who______ she? She______my mother. 答案：1.aream2.isisis3.isam4.isis三．按要求改写句子 1.Is this your pen?(作否定回答) ___
