Click to edit Master title style,Click to edit Master text styles,Second level,Third level,Fourth level,Fifth level,*,*,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,*,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,*,Lesson31,现在进行时,表示：,现在,正在,的,发生,的动作或事件构成,：,主语,be,+v.,ing,(,动词的现在分词,),take,tak,ing,sit,sit,ting,come,com,ing,swim,swim,ming,run,run,ning,open,open,ing,watch,watch,ing,shut,shut,ting,Tim is sharpening a pencil.,sharpen,Tim,5,3,1,He is,turning on the light.,turn on,He,5,3,1,I,am,sweep,ing,the floor.,Are,you sweep,ing,the floor?,Yes,I am.No,Im not.,I,am not,sweep,ing,the floor.,一般疑问句：,肯定,/,否定回答：,否定句：,he,make the bed,he,climb the tree,he,put on the coat,He is putting on,the,coat.,Is he putting on the coat?,He isnt putting on the coat?,He is climbing,the tree.,Is he climbing,the tree?,He is not climbing the tree.,He,is,mak,ing,the bed.,Is,he mak,ing,the,bed?,He,is not,mak,ing,the bed.,Sally is sitting under the tree.,Tim is climbing the tree.,The dog is running after the cat.,The dog is running across the grass.,sit under the tree,climb the tree,run across the grass,run after the cat,Sally,Tim,The dog,Sally,Tim,The dog,Sally is sitting under the tree.,Tim is climbing the tree.,The dog is running across the grass.,The dog is running after the cat.,Sally is sitting under the tree.,Tim is climbing the tree.,The dog is running across the grass.,The dog is running after the dog.,What is Sally doing?,What is Tim doing?,What is the doing?,Sally,Where,s,Sally,Jack,?4,She,s,in the garden,Jean,.3,Whats she doing?5,Shes sitting,under the tree,.6,Sally,在哪里，,Jack,?,她在花园里，,Jean,。
她正在做什么？,她正坐在树下Tim,Is Tim in the garden,too,?4,Yes,he is.,1,Hes,climb,ing,the tree,.3,I beg your pardon?2,Whos climbing the tree,?4,Tim is climbing the tree.3,Tim,也在花园里吗,?,是的，他在他正在爬树我请你再说一遍Tim,正在爬树谁在爬树？,What about,the dog?,The dogs in the garden,too.,Its,run,ning,across the grass,.,Its,run,ning,after,a cat.,The dog,。