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Listening and speaking. Task 1 As you listen, answer these questions:
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Task 1 As you listen, answer these questions:
1 Why do some people prefer LPs?
2 What is the expert's choice?
3 What are the advantages of CDs?
4 What is the difference between analogue and digital recording?
5 Why does digital recording produce better quality sound?
6 What disadvantages of CDs does he give?
7 What does he mean by marketing?
8 What might be the effect of so many people having CD players?
9 Which audio system does he favour?
10 What's his longterm forecast?
11 What would be the advantage of such a system?
Task 2 Here is the completed table of differences. Listen again to the tape. Tick the differences the expert mentions.
| LPs | CDs | |
| 1. Recording system 2. Sound quality 3. Access 4. Audio pattern 5. Material 6. Playing mechanism 7. Durability 8. Size 9. Playing time | analogue poorer than the original serial grooves vinyl mechanical easily damaged 12 inches 45 minutes | digital like the original random pits perspex laser does not deteriorate 12 cm 74 minutes |
Language study Comparison and contrast, 2.
In this unit we will examine some other ways to describe differences: to make contrasts.
On the tape the expert contrasted:
1 LPs and CDs
2 analogue and digital recording
3 CDs and newer systems
Here are some of the things he said:
They (CDs) use laser light rather than a needle.
LPs are analogue recordings while CDs are digital.
It (an analogue signal) can have any value... but in digital the signal is either on
or off.
You can process a digital signal with greater accuracy than a constantly varying signal.
Here are some other expressions used to make contrasts:
differ from is/are different from in contrast to whereas unlike
Task 3 Look back at the table of differences in Task 2. Contrast LPs and CDs for each point in the table. Use the expressions from the examples listed above. For example:
Unlike LPs, CDs use a digital recording system.
Date: 2015-07-02; view: 630; Нарушение авторских прав