1、Talk about the inventions(发明). Which one do you think is the most helpful in our daily life?,car,TV,mobile phone,camera,clock,They are some inventions. Do you know when theywere invented?,computer,Unit 6 When was it invented?Section A(1a-1c),Presentation 1a Look at the things below. In what order do
2、 you think they were invented? Discuss them with your group. Then number them 1-4(1=first,4=last),1,2,3,4,1b Listen and match the inventions with the years.,a,b,c,d,When was the .invented?,1876188519271971,a,c,b,d,computer,TV,A: I think the was invented before the . B: I disagree.( I agree. )I think
3、 the was invented after the.,car,clock,A: I think the was invented before the . B: I disagree.( I agree.)I think the was invented after the.,1675,laptop,camera,A: I think the was invented before the . B: I think so. ( I dont think so.)I think the was invented after the.,1839,1982,telephone,mobile ph
4、one,A: I think the was invented before the . B: I think so.( I dont think so.)I think the was invented after the.,1973,1c Pairwork,A: When was the invented ? B:I think it was invented in .,computer 1971,car 1885,TV 1927,telephone 1876,A: When was the _ invented? B: I think it was invented in _.,Pair
5、work (1c:P68),1971,1885,1876,1927,1971,calculator,The simple past passive voice一般过去时被动语态 一般过去时被动语态表示过去经常性、习惯性被动动作或过去某一时刻发生的被动性动作，与主动语态相比,被动语态中主语是谓语动作的承受者。 被动语态的构成: 主语+ 助动词was/were+ (及物动词的) 过去分词 was (were) + done(P.P.),Grammar,主动语态变被动语态的方法,动作执行者+动词主动形式+动作承受者 动作承受者+谓语动词被动形式+by 执行者,Bell invented the te
6、lephone in 1876. The telephone was invented by Bell in 1876.,主动语态变被动语态的结构图:,主语,谓语动词过去式,宾语,时间状语,主语,谓语动词的 过去分词,宾语,时间状语,写出动词的过去式和过去分词,1. show_ _ 2. shut _ _ 3. sing _ _ 4. sit _ _ 5. sleep_ _ 6. smell_ _ 7. speak_ _ 8.spell _ _,showed,shown,shut,shut,sang,sung,sat,sat,slept,slept,smelt/smelled,smelt/sm
7、elled,spoke,spoken,spelt/spelled,spelt/spelled,9. work _ _ 10. invent _ _ 11. land _ _ 12. play _ _ 13. stop _ _ 14. shop _ _ 15. divide _ _ 16. complete _ _ 17. study _ _,worked,worked,invented,invented,landed,played,stopped,shopped,divided,completed,studied,用所给动词的正确形式填空：1. The bike _(fix) up by Xi
8、aoming yesterday.2. Shields _ (use) for protecting peoples body in the past.3.Last year, a picture _(put) up on the blackboard.4. She said French_ (speak) in France.5. Teenagers _(allow) to choose their own clothes two years ago.,was fixed,were used,was put,was spoken,were allowed,Practice,Homework,Do exercise I in workbook. And preview 2 a to 2 c .,Thank you!,
