1. The passive voice 11002015 김보경 11002100 김현희 Chapter. 5
I will start the presentation.
Our subject of presentation is the passive voice.
김보경
김현희

2. contents 01. The Perfect tenses 02. The Continuous Tenses
03. Modal Auxiliaries
04. Focus on testing

3. 01. The Perfect Tenses

4. Present perfect Active have/has p.p Passive have/has been p.p p. 162
- New technology has revolutionized the communications industry.
Passive have/has been p.p
- The communications industry has been revolutionized by new technology.

5. Past perfect Active had p.p Passive had been p.p p. 163
- Before the 1950s, researchers had not yet developed high-quality audio and video equipment.
Passive had been p.p
- Before the 1950s, high-quality audio and video equipment had not yet been developed.

6. Exercise. 3
p. 164
In the past forty years, researchers have revolutionized audio and video technology.
By the late 1980s, scientists had developed compact discs and lightweight camcorders.
In the past forty years,
audio and video technology
have been revolutionized
by researchers.
By the late 1980s,
compact discs and lightweight camcorders
had been developed
by scientists.

7. 02. The Continuous Tense

8. Present continuous Active be + ing Passive be being p.p p. 166
Many cities are using computers to help regulate traffic.
Passive be being p.p
Computers are being used in many cities to help regulate traffic.

9. Past continuous Active was/were ing Passive was being p.p p. 167
Ten years ago, cities were using traffic officers to regulate traffic.
Passive was being p.p
Ten years ago, traffic was being regulated by traffic officers.

10. Exercise. 4
p. 168
By 1929, American automakers were producing approximately 5 million cars a year.
2. By the 1970s, competition from Japan was threatening the U.S auto industry.
>> By 1929,
approximately 5 million cars a year
were being produced
by American automakers.
>> By the 1970s,
the U.S auto industry
was being threatened
by competition from Japan.

11. 3. People are also building new-transport systems. 4
3. People are also building new-transport systems. 4. These days, automakers are finding ways to make automobile engines more fuel-efficient.
>> New transport systems are also being built by people.
>> These days, ways to make automobile engines more fuel-efficient are being found by automakers.

12. 03. Modal Auxiliaries

13. The passive voice with Modal Auxiliaries
1) can
Active
Today we can use personal computer to write letters.
Passive
Today computers can be used to write personal letters.

14. 2) may
Active
Writers may use computers to help them do research.
Passive
Computers may be used by writers to help them do research.

15. 3) might
Active
A doctor might use a computer to get the latest information about a drug.
Passive
A computer might be used by a doctor to get the latest information about a drug.

16. Can May Might Ability Ex) I can play the piano Request
Ex) Can you do me a favor?
Suggestion, Permission
Ex) Can I get you some candy?
- Perhaps
Ex) He may know the truth
May
- Permission
Ex) You may use my car
- Hopes
Ex) May you live long
- Perhaps
Ex) He might know the truth
Might
- Politer expression than may
Ex) Might I ask your name?

17. Exercise. 1
p. 172
1. We can define a robot as an “intelligent” machine.
2. Nowadays, people can design robots to do many jobs that would be dangerous or boring for humans.
>> A robot can be defined as an “intelligent" machine.
>>Nowadays, robot can be designed by people to do many jobs that would be dangerous or boring for humans.

18. Exercise. 2
p. 173
Personal robots of the future will be more sophisticated. They ( ) as complete entertainment centers, with the ability to sing, dance, even tell jokes!
Moreover, all the electronic equipment in the house-television, radio, phone, computer, and so on- ( ) by these robot.
Imagine: Someday, our dinners ( ), our dishes ( ), our laundry ( ), and our cars ( ) all by our own personal robots!
will be designed
will be regulated
may be cooked
may be washed
may be folded
may be repaired

19. 04. Focus on testing

20. Focus on testing
p. 177
1. Nowadays the majority of overseas telephone calls ____ by satellite.
a. transmit
b. transmitting
d. are transmitting
2. Their house _____ three times since they bought it twenty years ago.
b. had been redecorated
c. has been redecorating
d. has redecorated
c. are transmitted
a. has been redecorated

21. 3. Before turning on the switch, make sure the machine ______. a
3. Before turning on the switch, make sure the machine ______. a. plugs in c. has plugged in d. be plugged in
b. is plugged in

22. Thank you for listening