Unit 4 Topic 2 When was it developedRevision Grammar focus Passive voice (II)一般过去时的被动语态结构: was were 及物动词的过 去分词Eg:灯泡是在1879年被爱迪生发明的.Light bulb was invented by Edison in 1879.否定句: Li

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Unit 5 Topic 2He is running on the playground.Section D福建泉州永春美岭中学 张文钬Jane is playing the guitar in the dormitory.Maria is singing a song in the classroom .They