Grade 9 Unit 4 Topic 1 Section B

Michael: Look, a light bulb ^[1]bulb: US: [bʌlb]  UK: [bʌlb]  n. 电灯泡；（植物）鳞茎；鳞茎状物（如温度计的球部）!

Jane: Yeah. It is widely used by people everywhere. Do you know when it was invented?

Michael: It was invented in 1879.

Jane: Who invented it?

Michael: Thomas Edison. It’s said that ^[2]It’s said that: 据说 he invented more than two thousand things during his life.

Jane: What about the radio?

Michael: The radio was invented by Guglielmo Marconi in 1895. Jane, let’s go this way. Look! An airplane ^[3]airplane: US: [ˈerˌpleɪn]  UK: [ˈeə(r)ˌpleɪn]  n. 飞机, but it’s different from today’s ^[4]A be different from B (in …) : (在…方面)A 不同于B。.

Jane: Yes. It was invented by Wilbur and Orville Wright in 1903.