1. Unit 9 When was it invented? Section A Grammar Focus
人教版 Go for it! 九年级全一册
Unit 9 When was it invented?
Section A Grammar Focus
西宁市总寨中学
讲课教师： 吴秀萍

2. Revision
When were the following things invented? Choose the right time.

3. 1967
1976

4. 1876
1786

5. 1885
1727

6. Grammar Focus When was the zipper invented? It was invented in 1893.
Who was it invented by?
It was invented by Whitcomb Judson.
When was tea brought to Korea?
It was brought to Korea during the 6th and 7th centuries.
What is the hot ice-cream scoop used for?
It’s used for serving really cold ice-cream.
Passive voice in the simple past tense
Active: Alexander Graham Bell invented the telephone
in 1876.
Passive: The telephone was invented (by Alexander
Graham Bell) in 1876.

7. 一般过去时被动语态的结构为“主语+ was /were +及物动词的过去分词(+by+动作的执行者).”。如：
一、一般过去时被动语态
一般过去时被动语态的结构为“主语+ was /were +及物动词的过去分词(+by+动作的执行者).”。如：
Trees were planted last spring.
去年春天种了树。

8. 主语+was / were+及物动词的过去分词+其他.
1. 肯定句：
主语+was / were+及物动词的过去分词+其他.
e.g. Paper was invented by Chinese people two thousand years ago.
纸是中国人在二千多年前发明的。

9. 主语+ was/were not+及物动词的过 去分词+其他.
2. 否定句：
主语+ was/were not+及物动词的过
去分词+其他.
e.g. Women were not allowed to take part in the games at first.
开始妇女不允许参加奥运会。

10. Was/Were +主语 +及物动词的过去分 e.g. Was this picture drawn by
3. 一般疑问句：
Was/Were +主语 +及物动词的过去分
词+其他?
e.g. Was this picture drawn by
your sister?
这幅画是你妹妹画的吗？

11. 练一练 将下列句子变为被动语态。 1. He chose six story books the other day.
Six story books _____ _______ by him the other day.
2. Uncle Lee gave Jack a large cake for he painted the wall wonderfully.
Jack _____ _____ a large cake for he painted the wall wonderfully.
were chosen
was given

12. 将下列句子变为主动语态。 4. Were these machines invented by Edison? Did invent
3. A mouse ate half of the cake last night.
Half of the cake _____ _____ by a
mouse last night.
was eaten
将下列句子变为主动语态。
4. Were these machines invented by Edison?
_____ Edison _______ these machines?
Did invent

13. 5. Shoes with lights were used for seeing in the dark.
对划线部分提问
5. Shoes with lights were used for seeing in the dark.
_____ ______ shoes with lights ______ for?
6. Paper was invented in China almost a thousand years ago.
______ _____ paper _________ in China?
What were
used
When was invented

14. 4a Rewrite the sentences using the passive voice.
They sold the fridge at a low price.
The fridge was sold at a low price.
Somebody stole my camera from my hotel room.
My camera was stolen from my hotel room.

15. 3. Where did you take these photos? Where were these photos taken?
4. Our parents advised us not to go out alone.
We were advised not to go out alone by our
parents.
5. Different writers translated the book into
different languages.
The book was translated into different
languages by different writers.

16. eat lock like ring invite break tell bring
4b Complete the sentences with the correct
forms of the verbs in the box.
eat lock like ring invite
break tell bring
You _____________ to the party last night, weren’t you? Why didn’t you go?
2. The earthquake happened all of a sudden, but luckily the villagers _____________ to a safe place.
were invited
were brought

17. was locked rang were told broke were eaten liked
3. The door ___________ when we arrived, so
we ______ the bell.
4. The students ________ not to eat or drink
in class. But Ruby _______ the rule when
she started eating a biscuit in science class.
5. The cookies _________ by the hungry kids
in less than 20 minutes, and they really
_____ them.
was locked
rang
were told
broke
were eaten
liked

18. was invented was born worked learnt
4c Decide whether active or passive forms
should be used in these sentences.
Write the correct forms in the blanks.
The telephone _____________(invent) by Alexander Graham Bell. He __________ (born) in Mr. Bell ________ (work) on the invention of the telephone with Thomas Watson. In 1875, Mr. Bell_______ (learn) how to send musical notes
was invented
was born
worked
learnt

19. through an instrument similar to a telephone
through an instrument similar to a telephone. Finally, the telephone ____________ (invent) in The first sentence that ____was said
____ (say) on the telephone by Mr. Bell was “Mr. Watson, come here; I want to see you.” Today the telephone ________ (use) around the world.
was invented
is used

20. Exercises

21. I. 单项选择。
(2013.陕西)The mobile phone has influenced people’s life a lot since it ____.
A. invents B. invented
C. is invented D. was invented
2. (2013.上海) _____ is waiting for you at the gate. He wants to say thanks to you.
A. Somebody B. Anybody
C. Everybody D. Nobody D A

22. C A 3. At the end of the meeting Miss Green ___
two minutes to decide whether she should
join the project or not.
A. gave B. give
C. was given D. was giving
4. The mixture smelt terrible but Tom ____
taste it.
A. was made to B. was made
C. made to D. made C A

23. B D 5.—Did you go to Jack’s birthday party? —No, I____.
A. am not invited          B. wasn’t invited  
C. haven’t invited          D. didn’t invite
6.The book the Speed of Thought
_____ in 1999.
A. writes B. is written
C. wrote D. was written B D

24. B A 7. ___a new library ____ in your school last year?
A. Is; built  B. Was; built 
C. Does; built  D. Did; built
8. The earth is our home. It ______well. 
A. must be protected    B. should protect 
C. need protect         D. should protected. B A

25. II. 将下列句子改为被动语态。 1.The young man saved the lives of the children.
The lives of the children were saved by the
young man.
2. The villagers didn’t find the lost boy at last.
The lost boy wasn’t found by the villagers
at last.

26. 3. Did you clean up your room last night?
Was your room cleaned up last night?
4. My mother bought me a new CD player.
I was bought a new CD player by my
mother. /
A new CD player was bought for me by
my mother.
5. We saw Jim come in.
Jim was seen to come in.

27. Homework Master what you have learned
In this lesson. Learn to talk about
The history of inventions with the
Passive voice in the simple past tense .

28. Thank You!