The history of panama canal (1)

(03:55)

THE HISTORY OF PANAMA CANAL (2)

(08:17)

PRE-LISTENING

1. Try to remember everything you know about the Panama Canal.

WHILE-LISTENING

2. Watch the two videos. Try to understand any other facts about the Canal.

POST-LISTENING

3. Summarize everything you know about the Canal and make a report to the class.

SCIENTIFIC IVENTIONS

Part I

What types of energy do you know?

2. What is used to:

- provide light

- power an old-fashioned clock

- heat buildings

- drive a car

- power a modern watch

- recharge batteries

- ride a bicycle

* (“Engineering” Workshop by Lindsey White, OUP; Unit 16, pg.18, ex.1)

Read the following text quickly and choose the correct answers to the questions below.

1.	Trevor Baylis is
	a	a doctor
	b	a TV presenter
	c	an inventor
2.	The text is about
	a	radios
	b	a clever idea
	c	Africa

In 1991, Trevor Baylis saw a television programme about people in Africa with AIDS. A doctor in the programme said he wanted to give everyone in his country information about the illness but very few people had televisions or radios. The problem was that radios were very expensive because the batteries cost more than a week’s food for a family. Trevor Baylis had a clever idea: a clockwork radio that didn’t need batteries. He designed and developed a mechanism where the energy stored in a wound up spring could be used to drive a generator to power the radio. He also added a panel to convert solar energy into electrical energy. Trevor Baylis’ environmentally-friendly radio has won lots of awards. The technology can be used in anything that needs batteries and it is perfect for countries where electrical power is unreliable or very expensive. The wind-up technology is now used in the new generation of Apple e-Mate computers.

* (the text is from: “Engineering” Workshop by Lindsey White, OUP; Unit 16, pg.18, ex.3)

4. Find in the text the English equivalents to the following expressions:

- …проблема заключалась в том, что…

- …стоили дороже, чем…

- …еженедельный рацион одной семьи…

- … интересная идея…

- …радио, основанное на принципе работы часового механизма…

- …разработал и претворил в жизнь…

- …привести в действие…

- …превращать энергию…

- …не причиняющее вред окружающей среде…

- … может быть использовано…

- …это идеально для…

- …новое поколение компьютеров…

Read the text again and decide if the sentences (1 – 5) below are true (T) or false (F).

	Trevor Baylis had his idea when he watched a TV programme.	T	F
	He wanted to give people information about AIDS.	T	F
	His radio is powered in two different ways.	T	F
	The idea has been successful.	T	F
	Only radios can have clockwork power.	T	F

* (“Engineering” Workshop by Lindsey White, OUP; Unit 16, pg.18, ex.4)

Complete the definitions (1 – 5) below with the highlighted words in the text. Use the glossary or your dictionary to help you.

1.	“…… - ……” means good for the health of people and the world.
2.	……… is power produced by a wound up spring.
3.	Something that often doesn’t work or breaks down is …… ... .
4.	A ……… converts mechanical power to electrical energy.
5.	Power from the sun is …… …… .

* (“Engineering” Workshop by Lindsey White, OUP; Unit 16, pg.18, ex.5)

Answer the questions to the text.

1) What was the clever idea that Trevor Baylis had?

2) When did this clever idea come to Trevor Baylis mind?

3) What was the reason for this clever idea?

4) Why did only few people in Africa have televisions or radios?

5) What was the principle of a new mechanism?

6) Where can Trevor Baylis’s invention be used?

7) What do we call the kind of technology that Trevor Baylis invented?

8) What is the modern usage of technology?

8. Match the following words:

inventor energy(x4) electricity -friendly information technology invention generation a generator heating(x2) power(x2) a mechanism of computers

	to generate				to collect
	to convert				gas
	to drive				young
	central				solar
	interesting				to design
	famous				environmentally
	to produce				the wind-up
	to store				generation
	electrical				type of

Match the following words with their definitions below.

inventor heating to convert perfect power energy to invent reliable invention to store to heat generator generation

	The ability to be very active or do a lot of work without getting tired.
	Energy that can be collected and used for operating machines.
	To make something warm or hot.
	To think of something or make something for the first time.
	To keep something for future use.
	A system for making rooms and buildings warm.
	A machine that produces electricity.
	A person who has invented something.
	To change something from one form to another.
	Something that you can trust or rely on.
	All people who were born at about the same time
	Something that has been made or designed by somebody for the first time.
	It means ‘the best for’ something.