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4. Answer these questions about remote controls.

1. What can we do using a remote control?

2. Give the definition of a remote control.

3. What consumer IR devices can work with the help of remote controls?

4. How do modern remote controls communicate to their respective devices?

5. What batteries do remote controls need?

6. What can you say about the modern use of remote controls?

7. Is a remote control a convenient device? Prove your answer.

8. Are you ready to refuse from a remote control? Give reasons.

5. Complete the table. Use the information from the text.

Date

Country

Invention

Inventor

Extra Information

1898

1903

1932

1950

1955

1970s

6. Read paragraph 6 again to complete the gaps in the flowchart, which shows how the remote control transmitter works.

1. You press a key.

2.

3. A signal is sent to a microchip.

4.

5. These pulses switch on the LED.

6.

7. Complete the tables. Pay attention to the part of speech the words belong to.

Noun

Verb

Noun

Adjective

adjustment

1

14

useful

2

beam

15

wireless

contraction

3

16

long

cross

4

17

light

emulation

5

18

wireless

6

exhibit

19

operative

use

7

20

picturesque

light

8

21

pointless

mimics

9

precision

22

operation

10

23

purposeful

shine

11

similarity

24

point

12

25

useful

13

sound

8. Match the words from two columns. Use the information above.

1. to shine

2. to change

3. to execute

4. respective

5. to emulate

6. at the front

7. to adjust the sound

8. to be pointed

9. military

10. to distinguish

11. widespread

12. electromagnetic

13. to operate

14. to cross

a) and the picture

b) channels

c) devices

d) between different sources

e) exhibition

f) waves

g) the functionality

h) commands

i) of the handset

j) purposes

k) wirelessly

l) very precisely

m) a beam of light

n) use

9. Match the words with a similar meaning.

1. precise

2. to execute

3. to consist

4. to transmit

5. to emulate

6. similar

7. to operate

8. beam

9. to adjust

10. to point

11. field

12. via

a) to regulate

b) ray

c) to be composed

d) to imitate

e) to carry out

f) sphere

g) to manage

h) to show

i) accurate

j) like

k) to deliver

l) through