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： 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. What is this/that?这是/那是什么？Its a/a
2、n.它是. 2. Is this/that.?这是/那是.吗？Yes,it is.是的，它是。No,it isnt.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 arent. 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
3、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-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)-
4、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 _? -Its an eraser. A .this B.that C.these D.those ( )2.Are _your watches over there? A.this B.that C.these D.those ( )3._this your
5、 friend? A.is B.Are C.Is D.are ( )4._those his dictionaries? A.is B.Are C.Is Dare ( )5.-Is that Marys schoolbag? -_ A.Yes,it isnt. B.No,it is. C.Yes,its. D.No,it isnt. ( )6.-Is this your friend? -_ A.Yes,he is. B.Yes,it is. C.No,its not. D.Yes,I am. ( )7.-Are these Helens pencils? -_ A.Yes,theyre. B
6、.No,they are. C.Yes,they are. D.No, it is.( )8.-What are those? -_ A.They are box. B.They are boxes. C.Its a box. D.Yes,they are. ( )9.-What is this in English? -_ A.Its an eraser. B.Its a eraser. C.Its my an eraser. D.Its my eraser. 2用 am is are 填空。 1，How_ you ? I_ fine. 2,This_ my brother. His nam
7、e_ Peter. He_ five. 3,What_ your name ? I_ Kate. 4, Who_ she? She_ my mother. 答案：1.are am 2.is is is 3.is am 4.is is3按要求改写句子 1.Is this your pen?(作否定回答) _2.Are those Kates parents?(作肯定回答 ) _3.These are oranges.(对划线部分提问) _4.Those are my cousins.(对划线部分提问 ) _5.Is this her dictionary?(改为复数) _6.Those arent my watches.(改为单数 )_
