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ep 5 Pair work (1c) try to remember the inventions and the years. B, cover the A, ask Student B when the things in the picture in 1b were change roles and practice again. some pairs ask and answer before class. :When was the telephone invented? B:I think it was invented in 1876. … Step 6 Learning the new words amp。Unit 6 When was it invented ? Section A (1a2d) 第一課時 Step 1 Warming up ,讓學生們將圖片與發(fā)明者相連。 讓學生們看大屏幕的近代發(fā)明和發(fā)明者的圖片 ,并將句子改為被動語