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1、Talk about the inventions(发明发明).Which one do you think is the most helpful in our daily life?carTVmobile phonecameraclockThey are some inventions.Do you know when they were invented?computerUnit 6 When was it invented?Section A(1a-1c) Presentation1aLook at the things below. In what order do you thin
2、k 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.abcdWhen was the.invented? 1876188519271971acbdcomputerTVA: I think the was invented before the .B: I disagree.( I agree. ) I think the was invented afte
3、r the.carclockA: I think the was invented before the .B: I disagree.( I agree.) I think the was invented after the.1675laptopcameraA: I think the was invented before the .B: I think so. ( I dont think so.) I think the was invented after the.1839 1982 telephonemobile phoneA: I think the was invented
4、before the .B: I think so.( I dont think so.) I think the was invented after the.1973 1c PairworkA: When was the invented ?B:I think it was invented in .computer1971car1885TV1927telephone1876A: When was the _ invented?B: I think it was invented in _.Pairwork (1c:P68)19711885187619271971calculator Th
5、e simple past passive voice 一般过去时一般过去时被动语态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，与主动语态相比或过去某一时刻发生的被动性动作，与主动语态相比,被被动语态中主语是谓语动作的执行者。动语态中主语是谓语动作的执行者。 被动语态的构成被动语态的构成:主语主语+ 助动词助动词was/were+ (及物动词的及物动词的) 过去分词过去分词 was (were) + done(P.P.)Grammar主动语态变被动语态的方法主动语态变被动语态的方法动作执行者动作执行者+
6、 +动词主动形式动词主动形式+ +动作承受者动作承受者 动作承受者动作承受者+ +谓语动词被动形式谓语动词被动形式+ +by 执行者执行者Bell invented the telephone in 1876. The telephone was invented by Bell in 1876. 主动语态变被动语态的结构图主动语态变被动语态的结构图:主语主语谓语动词过去式谓语动词过去式宾语宾语时间状语时间状语主语主语谓语动词的谓语动词的过去分词过去分词宾语宾语时间状语时间状语写出动词的过去式和过去分词写出动词的过去式和过去分词 1. show_ _ 2. shut _ _ 3. sing _
7、 _ 4. sit _ _ 5. sleep_ _ 6. smell_ _ 7. speak_ _ 8.spell _ _ showedshownshutshutsangsungsatsatsleptsleptsmelt/smelledsmelt/smelledspokespokenspelt/spelledspelt/spelled 9. work _ _ 10. invent _ _ 11. land _ _ 12. play _ _ 13. stop _ _ 14. shop _ _ 15. divide _ _ 16. complete _ _ 17. study _ _ worked
8、workedinventedinventedlandedplayedstoppedshoppeddividedcompletedstudied用所给动词的正确形式填空：用所给动词的正确形式填空： 1. The bike _(fix) up by Xiaoming 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 fixedwere usedwas putwas spokenwere allowedPractice