2. Unit 9 When was it invented ?

3. Teaching Aims Knowledge Aims: 1. To Learn the sentence structures: When was it invented? It was invented in 1876. What is it used for ? It is used for talking with each other. 2. To listen the date of the inventions.

4. Ability Aims: 1. Improve the students’ ability of listening the dates. 2. Train the students’ ability of talking about the pictures according to the charts. Moral Aims: Let Ss learn a lot from the inventors and be proud of some famous inventions in China

5. Main points 1. Learn the sentence structures and express correctly. 2. Listen the date of the inventions. 3. Learn to talk about the pictures according to the charts. Difficult points 1. Learn the sentence structures and express correctly. 2. Learn to talk about the pictures according to the charts.

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

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

9. Bell invented the telephone. ___________ was invented by ___. The telephoneBell The telephone by Bell. was invented When was the telephone invented? I think it was invented in 1885.

10. A: When was the_____invented? B: I think it was invented in ___. A: When was the_____invented? B: I think it was invented in ___. 18851976192718761971 Pairwork: Let’s guess the time of these inventions.

11. 1b Listen and match the inventions with the dates. a b e d c 1876 d 1885 1927 1971 1976 d a b e c

12. Listening (1b: P68) 1876 1885 1927 1971 1976 When was ____invented? It was invented in ____.

13. A: What’s the _______ used for? B: It’s used for ______________________. A: What’s the _______ used for? B: It’s used for ______________________. talking with people far away

14. A: What’s the _______ used for? B: It’s used for _______________. A: What’s the _______ used for? B: It’s used for _______________. giving light.

15. Discuss with your classmates, and fill in the chart. InventionsBe used for talking with people far away. a telephone a TV a computer a car a calculator learning more about the world. studying, playing games and doing other things. calculating. driving. What’s it used for?

16. A: What’s this in English ？ B: It’s ___________. A: When was the calculator invented? A: What’s it used for? B : It was invented _______. B: It’s used for_____________________. invention calculator time 1971 be used for calculating a calculator in 1971 calculating

17. invention telephone time 1876 be used for talking with others T: What’s this in English ？ S:______________________ T: When was the telephone invented? S:__________________________ It was invented in 1876. T: What’s it used for? S:____________________________________ It’s used for talking with each other. a calculator

18. T: What’s this in English ？ S:______________________ T: When was the telephone invented? T: What’s it used for? S:__________________________ S:____________________________________ It’s a telephone. It was invented in 1876. It’s used for talking with each other. invention telephone time 1876 be used for talking with others

19. A: What’s this in English ？ B: _________________________. A: When was the tea invented? B : _________________________. A: What’s it used for? B: _________________________. invention tea time 2737 B.C. be used for drinking It’s a cup of tea. It was invented in 2737 B.C. It’s used for drinking. Please guess the invention. ???

20. Edison invented the light bulb. The light bulb was invented by Edison. Summary: be + 过去分词 The passive voice 被动语态 _______________

21. When was the computer invented? It was invented in 1976. What is it used for? It’s used for studying. ___________ ________ __ ____ _______________ ___________ 被动语态的句子的时态、人称变化反映在 be 动词上。 一般现在时 am / is / are ＋ 过去分词 一般过去时 was / were ＋ 过去分词

22. 电话什么时候发明的？ When ________the telephone_________? 它是 1876 年发明的。 It was invented _______1876. 它被用于做什么？ What ________it________ _________? 它被用于和远方的人进行交谈。 It is used for _______ _______people far away. 电灯是由爱迪生发明的。 The light bulb ______ ______ _______ Edison. I Fill in the blanks. wasinvented isused for wasinvented in talking with by

23. What are the four great inventions in China ？

24. during the Eastern Han Dynasty papermaking

25. gun powder at the end of the Tang Dynasty

26. printing during the Northern Song Dynasty

27. in the 11th century compass

28. Homework: Writing a shortconversation about Papermaking Technique. Invention time 105 A.D. be used for making the paper Where China Advantage make beautiful books, magazines…