When was it invented,Section A,Unit 9,1a,Guessing game,S1: I think the calculator was invented before the computer. S2: Well, I think the calculator was invented after the computer. S3: I think the TV was invented before the computer,1a,5,2,4,3,1,1b,Listen and match the inventions with the dates,a,b,e,d,c,1876 1885 1927 1971 1976,d,a,b,e,c,1c,PAIRWORK,A: When was the telephone invented ? B: I think it was invented in 1876,2a,Listen and number the inventions in the order that you hear,3,1,2,2b Li
