Exercise 37. Read the text again and answer the questions (1-9) below

Exercise 36. Read the text quickly and decide which structure it describes.

Text 6. Big is the Best

Exercise 34. Use the Internet, magazines, or newspapers to find out about another interesting invention of the last twenty years. Try to find out two advantages and two disadvantages of the invention and tell your class. Decide who found out about the most interesting invention.

Exercise 33. Write two advantages and two disadvantages of using optical fibres instead of copper cable. Compare your ideas with the rest of the class.

Exercise 32. Complete the definitions (1-9) below with the highlighted words in the text.

5____________________________________________________________

Optical fibres can't be spliced as easily as copper cable. Employees need special training to handle the expensive splicing and measurement equipment.

Exercise 30. Read the text again and match the headings (A-E) with the paragraphs (1-5).

A Training and skills D Price

B Size and weight E Capacity

C Security

Exercise 31. Which paragraphs describe advantages of optical fibres and which describe disadvantages?

1. A ________ is one millionth of a metre.

2. The _______ is the distance across a circle.

3. A ________ substance is one that burns easily.

4. ______ means joining the ends of two cables together.

5. To _________ means to start to burn.

6. _________ are tubes for carrying cables.

7. _______ is a common short way of saying 'for each'.

8. ____________means to touch with your hands.

9. ___________ means in a way that produces a good result and doesn't waste time, energy, or resources.

Exercise 35. Before you start:

Work in pairs. You have one minute. How many different dams or tunnels can you think of? Compare your answers with the rest of the class.

a) The Hoover Dam

b) The Arlberg Tunnel

с) The Channel Tunnel

d) The Golden Gate Bridge

The... is between Britain and France. It's more than 20 kilometres long. It was built by British and French engineers. They started on opposite sides and met in the middle under the sea. They used specially-designed tunnel boring machines (TBMs) to dig the tunnels through the rock under the seabed. TBMs are enormous machines for digging tunnels. The machines used to dig the main tunnels were about 8.5 metres in diameter and 250 metres long. Work started in 1987 and the teams met under the seabed in 1991. It is a rail tunnel. The first passenger train went through in 1994.

1. Where is it?

2. What is it?

3. How long is it?

4. Who built it?

5. How did they build it?

6. What are TBMs?

7. How big are TBMs?

8. How long did it take to build?

9. When did it open?

Exercise 38. First, underline the question words in Exercise 3. Then use them to complete these questions.

1. _____ many Roman roads are there in Europe?

2. _____ designed St Paul's Cathedral in London?

3. _____ is the name of the famous bridge in San Francisco?

4. _____ was the Eiffel Tower built?

5. _____ is the Corinth Canal?

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