情景交际。 A: What a nice camera! __ 1 __ B: It was invented by Joseph Nicephore Niepee. A: Oh, I see, __ 2 __ B: In 1827. A: What's this in English?__ 3 __ B: It's called an English Learning Machine. A: __ 4 __ B: It may be made of steel. A: __ 5 __ B: It is used for helping us to improve our English. A. What did it look like? B. Who invented it. C. It looks like a recorder. D. Where was it made? E. When was it invented? F. What is it used for? G. What is it made of ?