Unit 9When was it invented
When was it invented
Section ASection AThe Passive Voice 被动语态Edison invented the light bulb invention n
发明物inventor n
发明家invent v
发明Edisonlight bulbThe light bulb was invented by Edison
1879年 The classroom is cleaned every day
The Shanghai Expo(世博) was held in 2010
The Bird’s Nest was built in Beijing
classroom clean , every day Bird’s Nest build, BeijingThe Shanghai Expo( 世博) hold , 2010When was the airplane invented
the first airplaneWright Brothers 1913Who was it invented by
calculator 计算器carTVtelephoneinventionscomputer1cA: When was the telephone invented
B: I think it was invented in 1876
19761885192719711876Guessing: What is it
Guessing: What is it
microwave ovenIt is used for cooking and heating food( 加热 )+doing 被用来做某事 What’s it used for
be used f