1. Passive voice in the past

2. HOW TO FORM the PASSIVE VOICE
Someone cleans the streets every day
The streets are cleaned every day
VERB CHANGES: TO BE + PAST PARTICIPLE
(same verbal tense of the active sentence)
Columbus discovered America in 1492
America was discovered by Columbus in 1492
Many past participles are irregular. You can find a list of many commonly used past participles at

3. I bought him a present. He was bought a present.
VERB CHANGES: TO BE + PAST PARTICIPLE
(same verbal tense of the active sentence)
We have elected a new President
A new President has been elected (by us)
They are playing the match on Saturday
The match is being played on Saturday (by them)
If the object is a pronoun, make sure to change it to a subject pronoun: me  I him  he her  she them  they us  we
I bought him a present.
He was bought a present.

4. TENSE ACTIVE PASSIVE Past Simple I made a cake. A cake was made.
Past Continuous
I was making a cake.
A cake was being made.
Present Perfect
I have made a cake
A cake has been made.
Past Perfect
I had made a cake.
A cake had been made.
Modal Perfect
I should have made a cake.
A cake should have been made.

5. The new 7 wonders of the world

6. Chichen itza – Yucatan, Mexico
Chichen Itza is a group of pyramids and other structures that was built by the Mayans.
Insert a map of your country.

7. Christ the redeemer statue – Rio de janeiro, brazil
This symbol of Rio de Janeiro was built in the 1920s.
It is made of soapstone and concrete.
Insert a picture of one of the geographic features of your country.

8. The colosseum – rome, italy
The Colosseum is a giant stadium constructed by the ancient Romans.
It was finished in less than 8 years.
Insert a picture illustrating a season in your country.

9. The Great wall of china
The Great Wall of China was built to defend the Chinese Empire
A lottery called keno was used to pay for it.
Insert a picture of an animal and/or plant found in your country.

10. Machu Picchu – Cuzco, Peru
This “Lost City of the Incas” was built in the 15th century.
It was rediscovered in 1911.

11. Petra, jordan
The ancient city of Petra, Jordan is famous for buildings that were cut into the rock.

12. Taj Mahal – agra, India
The Taj Mahal was built by emperor Shah Jahan to remember his wife after she died.

13. What are the 7 wonders of korea?
With your group, decide what the 7 most amazing things are that everyone should see in Korea.
Present your 7 wonders to the class.
Things you could mention in your presentation about each wonder:
When was it built? Who was it built by? Why was it built? How was it built? What was it used for? What important things happened there? Why is it a wonder?

14. Discussion questions
What ancient buildings have you visited? What did you think about them?
What ancient buildings and cities do you want to visit? Why?
What ancient civilizations do you think are most interesting? Why?
Why do you think ancient people built massive monuments?
What kind of monument would you like to build?
Korea is also an ancient civilization. What do you know about life in Korea in ancient times (over 2000 years ago)?
Egyptian kings wanted to be buried under a pyramid. What do you want to be done with your body after you die?
Some people think the Egyptians had help from aliens building the pyramids. Do you think aliens have ever visited Earth?
Tourism brings a lot of money to many countries, but also can damage the local environment. Do you think more tourism would be good for Korea?
How do you think Korea could encourage more tourism?

15. Homework
Your homework has already been posted on You can find this PowerPoint presentation on the class web site at Don’t forget to study for next week’s quiz on the vocabulary and grammar from Units 6-8.