1. When was it invented ? Unit 9 Period 1

2. Learning aims （学习目标） 1.Grasp the new words and patterns. invent,calculator,light bulb,binoculars A:When was/were the … invented? B: It was/They were invented in … A: Who was it /were they invented by ? B : It was/They were invented by … 2. Try to understand and use the passive voice of the past tense well. （正确理解与运用一般过去时的被动语态。）

3. compass gun powder printing paper-making

4. calculator light bulb TV set car computer telephone camera bicycle

5. Edison invented the light bulb. The light bulb was invented by Edison.

6. Karl Benz invented the car. ______ was invented by _______. The carKarl Benz

7. Bell invented the telephone. ___________ was invented by ___. The telephoneBell

8. thingsinventor ( 发明家 ) time umbrellaChinese4000years ago binoculars 双筒望远镜） Italians ( 印度人 ) 1854 cameraJoseph Nicephore 1827 bicycleEnglishman1880s Let’s talk !

9. 1b Listen and match the inventions with the dates. a b e d c 1876 1885 1927 1971 1976 d a b e c

10. 1876 Bell 1885 Henry Ford 1971 Bill Hewlett 1976 Cray A:When was the … invented? B: It was invented in …. A: Who was it invented by ? B : It was invented by … 1903 Wright Brothers Pairwork

11. A:When were the … invented? B: They were invented in …. A: Who were they invented by ? B : They were invented by … potato chips,1863, George light bulbs, 1879, Edison Pairwork

12. Exercises 一、根据汉语意思完成句子，每空一词。 1. 汽车发明于 1885 年。 The car _______ _______ in 1885. 2. 电视是谁发明的？ _______ was the TV ________ ______ ? 3. 双筒望远镜是印度人发明的。 The binoculars _______ invented _______ Italians. 4. 飞机是莱特兄弟于 1827 年发明的。 The plane was invented ______ Wright Brothers ______ 1827. wasinvented Whoinvented by were by in

13. 二、句型转换 1.Bell invented the telephone. （改为被动语态） The telephone ______ _______ by Bell. 2. Tom bought some books yesterday. （改为被动 语态） Some books _______ _______ by Tom yesterday. 3. He allowed Jack to make his own decisions. （ 3. He allowed Jack to make his own decisions. （改为被动语态） Jack _______ ________ to make his own decisions. wasinvented werebought wasallowed

14. 4.This kind of telephone was invented in 1985. （对划线部分提问） ________ _______ this kind of telephone invented ? 5. They were invented by Julie Thompson. （对划线部分提问） ________ ________ they invented by? 6.The computers were invented in 1976.( 对划 线部分提问 ) ________ ______ the computers ________? Whenwas Whowere Whenwereinvented

15. ( ) 1. A new hospital ________ in my hometown last year. ( 海南中考 2008 ) A. was built B. built C. is built ( ) 2. The road ________ last year. (2010 北京 ) A builds B built C was built ( ) 3. ----Susan, why are you still here ? They are already to start. ---- I’m sorry, but I ____ when to leave. (2010 山西 ) A wasn’t told B don’t told C didn’t tell 中考真题链接 A C A

16. ( ) 4 Chinese ________ by more and more people in the world.(2012 海南中考 ) A. is spoken B is speaking C. speaks ( ) 5. To keep the road safer,the new traffic rules must _______ by everyone. (2013 海南 ) A. follow B. be followed C. are followed A B

17. The passive voice. 被动语态 构成 被动语态的构成 : 助动词 be+ ( 及物动词的 ) 过去分词 一般现在时 一般过去时 am (is, are) + done was (were) + done {

18. Make a survey: What inventions do you know? InventionsWho When light bulbs Edison 1878 Tea Shen Nong about three thousand years ago Report like this: light bulbs were invented by Edison in 1878... Homework Collect more inventions and write down a short passage. ( 搜集更多的发明物品，并写一篇短 文。）

19. Thank you for listening!