1. Unit 9 When was it invented?

2. Section A

3. When were they invented?
light bulb
1879年

4. watch
1806年

5. microwave oven
1947年

6. alarm clock
1905年

7. Groupwork (1a:P68) 5 1

8. Listening (1b: P68)
__ 1876
__ 1885
__ 1927
__ 1971
__ 1976 d a e c b

9. Pairwork (1c:P68) A: When was the telephone invented?
B: I think it was invented in 1876.

10. A: When was the car invented?
B: I think it was invented in 1930.

11. A: When was the TV invented?
B: I think it was invented in 1927.

12. A: When was the calculator invented?
B: I think it was invented in 1971.

13. A: When was the computer invented?
B: I think it was invented in 1976.

14. Listening (2a, 2b: P69) 3 1 2

15. Jayce Coziar and Jamie Ellsworth shoes with adjustable heels
changing the style of the shoes
Julie Thompson
battery-operated snakers
seeing in the dark
heated ice cream scoop
Chelsea
Lanmon
scooping really cold
ice cream

16. Oral Practice (2c: P69) Sentence pattern:
-- What is it /are they used for?
It is /They are used for ...
-- Who was it /were they invented by?
It was / They were invented by ...

17. Sample dialogues:
A: What is this?
B: This is a heated ice cream scoop.
A: What is it used for?
B: It is used for scooping really cold ice
cream.
A: Who was it invented by?
B: It was invented by Chelsea Lanmon.

18. Grammar Focus (P69) The passive voice 被动语态
在被动语态的句子中, 谓语部分的结构是be + 过去分词。被动语态的句子的时态变化反映在be动词上。也就是说, 把一个句子做成被
动语态的句子, 只需要写出be动词
的所需时态, 再加上所给动词

19. 的过去分词就行了。当然, 这只是指谓语部分而言。我们知道, be动词作为一个独立的谓语动词有自己现在分词(being)和过去分词 (been)。那么, 下面我们来看看be 在各种时态中的变化形式：

20. 一般现在时 am / is / are 一般过去时 was / were 一般将来时 shall / will + be 过去将来时 would / should + be 现在进行时 am / is / are + being 过去进行时 was / were + being 现在完成时 have / has + been 过去完成时 had + been

21. Make sentences in many countries all over the world . English
1. 世界上许多国家都讲英文。
in many countries
all over the world . 　　 　
English 　　 　
is spoken 　 　
2. 纸是中国发明的。
Paper
was invented in China.
3. 这栋大楼是去年建造的。
The building
was built last year.

22. 4. 他父亲不会让他娶玛丽为妻的。
He 　
won’t be allowed　
, by his father, 　
to marry Mary. 　
5. 他们毕业后将被派往广州。
They
will be sent to Guangzhou　
after they finish school. 　
　6. 这本小说已被译成了几种语言。
This novel
has been translated
into several languages.

23. Pairwork (3a:P70)
Helpful inventions: light bulb, TV set, microwave oven, fan, radio, umbrella, bicycle, camera, watch, computer, …
Annoying inventions: alarm clock, mobile phone, junk food, ice cream, …

24. Sentence pattern:
What is this in the picture?
What is it used for?
Do you think it is helpful / annoying?

25. Dialogue 1:
A: What is this?

26. B: It is an alarm clock.
A: What is it used for?
B: It is used for waking people up in
the morning.
A: Do you think it is annoying?
B: Sometimes, when I want to go on
sleep.

27. Dialogue 2:
A: What is this?

28. B: It is a light bulb.
A: What is it used for?
B: It is used for giving light.
A: Do you think it is helpful?
B: Yes, I think so. Because I always do
homework and read books in the
evening by its light.

29. Dialogue 3:
A: What is this?

30. B: It is a microwave oven.
A: What is it used for?
B: It is used for heating cold food and
cooking meals.
A: Do you think it is helpful?
B: Yes, I think so. Because my parents
are very busy and I can use it to
cook meals by myself.

31. Pairwork (4:P70) Dialogue 1: A: What do you think is the most helpful
invention?
B: I think the most
helpful invention is
the vacuum cleaner.

32. A: Why is that?
B: Well, it can help me clean the floor
when mother asks me to do the
cleaning.

33. Dialogue 2:
A: What do you think is the most
annoying invention?
B: I think the most annoying invention
is the air-conditioner.
A: Why is that?

34. B: Well, I feel uncomfortable in the
room with an air-conditioner.

35. Dialogue 3:
A: What do you think are the most
annoying or helpful inventions?
B: I think the truck is the most annoying
invention and the soundproof door
and window is the most helpful
invention.

37. soundproof door
and window

38. A: Why is that?
B: The trucks always make noises and
people can’t sleep well. If they have
the soundproof door and window,
people needn’t worry about the noises
anymore.

39. Groupwork (4: P70)
What would you do if you are alone on a tiny island?

40. Make sentences 1. 爱迪生发明了电灯。 The Electric light was invented
by Edison . 　　 　
2. 这个勺子用来舀冰淇淋的。
The scoop
is used for scooping ice cream.
3. 下课后把试卷发下去。
will be handed out after class.
The test papers

41. 4. 上学的晚上我不让外出。
I 　
am not allowed　
to go out 　
on school nights. 　
5. 电拖鞋是去年由朱莉.汤普森发明的。
The battery-operated slippers
were invented　
by Julie Thompson last year. 　
　6. 课室应该天天打扫。
The classroom
should be cleaned
every day.

42. Section B

43. Describe how food tastes.(1a:P71)
potato chips
crispy and salty

44. lemons
sour

45. ice cream
sweet

46. tea
sweet

47. Listening (2a, 2b: P71) T F T F F T
The potato chips were invented by mistake.
2. They were invented in 1863.
3. The customer thought the potatoes weren’t thin enough.
4. The customer said they weren’t salty enough.
5. George wanted to make the customer happy.
6. The customer was happy in the end. T F T F F T

48. The history of chips
_____________that potato chips were invented by mistake? Chips ______
_________by a chef called George Crum. They were invented in______. George Crum cooked them for a long time until they ___________And he sprinkled lots of salt on them so they were__________.
Did you know
were invented
1853
were crispy
really salty

49. Reading (3a: P72)
Who invented tea?

50. 1. What is this article about?
I think it is about the invention of tea.
2. When was it invented?
Over 3,000 years before 1610.
3. Who was it invented by?
The emperor Shen Nong.
4. How was it invented?
According to an ancient legend, once when Shen Nong was boiling drinking

51. water over an open fire, some leaves from a nearby bush fell into the water and remained there for some time. He noticed that the leaves in the water produced a pleasant smell. Later he tasted the water and found it quite delicious. That’s how he discovered tea.

52. Writing (3b: P72)
From pie plate to flying disk

53. A sample version
From pie plate to flying disk
The flying disk was invented by college students. Flying disk is a metal pie plate. In the 1950s, several college students ate pies made by a bakery

54. in Bridgeport, Connecticut
in Bridgeport, Connecticut. They found it interesting to throw the pie plates with each other. Then it became a game. Today, there are flying disk clubs, magazines and even a festival.

55. Self Check (1:P73) sweet salty sour crispy crispy sweet salty sour
I don’t like eating chocolate. It tastes too ________.
Mom added salt but it still wasn’t ________ enough.
I prefer lemons to oranges. I like the __________ tastes.
She likes __________ cookies. They are hard, dry and easily broken.
sweet
salty
sour
crispy

56. Self Check (2:P73) in the sixth century by the Chinese
The abacus was invented in the sixth century by Chinese.

57. about 4000 years ago
in Assyria, China and Egypt
The umbrella was invented about 4000 years ago in Assyria, China and Egypt.

58. in 1854
by Ignatio Porro
in Italy
In Italy in 1854, the binoculars was invented by Ignatio Porro.

59. in 1827
by Joseph Nicephore Niepce, who took the first picture
In 1827, the camera was invented by Joseph Nicephore Niepce, who took the first picture.

60. in the 1880s
in England
The bicycle was invented in the 1880s in England.

61. Do you know when basketball was invented?
Reading
Do you know when basketball was invented?

62. 100 years old played indoors on wooden floor parks schools exercise
first game played in 1891
played indoors
foreign players in NBA
on wooden floor
parks
schools
aim to score “baskets”
exercise
court
basket
backboard

63. It was the first time basketball was played as an Olympic event.
Who invented basketball?
2. Why were the Berlin Olympics important for basketball?
3. What is the aim of basketball?
4. Name a professional basketball organization in America.
James Naismith.
It was the first time basketball was played as an Olympic event.
To get the ball into the basket.
The National Basketball Association.

64. Thank you for listening!