Exercise 1. Answer the questions. What influences the operation of an integrated circuit? (the quality of microscopic components it consists of) 2. What is the function of a computer? (making a great number of calculations at a very high speed) 3. What will be the speed of the fifth-generation computers? (100 billion operations a second) 4. What can increase the operation speed many times compared to the present computers? (a photon) 5. What physical phenomenon can be used to improve a computer's speed? (light) 6. What are the advantages of light for computation purposes over electronics? (the capability to move faster, in parallel lines and pass one another)
Exercise 2. Make a sentence out of the two parts.
1. Nowadays electronic devices
2. We are surrounded
3. There are
4. A personal computer
5. People are carried by
6. The modern production is unthinkable
7. It is impossible to imagine
1.airplanes, ships, trains and cars having built-in electronic circuits and instruments.
2.is being used more widely at home and in office.
3.without electronically con-trolled machine-tools.
4.with electronics everywhere in everyday life and at plants and factories.
5.scientific research without computers.
6.are in general usage.
7.electronic watches we wear, telephone, radio, and TV sets we speak, listen to and watch.
William ___ (had already heard) the news when I ___ (called) to tell him.
While Emma ___ (was doing) her homework, her brother ___ (was playing) music loudly, and she couldn't concentrate.
Nathan ___ (came) across a photo of his great-grandfather as he ___ (was looking) through some old things.
Helen ___ (is) exhausted because she ___ (has been jogging) for two hours.
2. Have you (heard) the news? Tom and Ann are engaged!
3. Do you (hear) the wind? It is blowing) very strongly.
4. Have you (seen) my car keys anywhere? – No, I (am looking) for them but I (do not see) them.
5. Have you (seen) my bag anywhere? I (have been looking) for it for ages.
6. I have never (read) a story that (interested) me so much as the one I (read) last night.
7. When we (went) to see them last night, they (were playing) chess, they (said) they (had been playing) since six o'clock.
8. You (will go) with us to the Zoo tomorrow if you (are) a good boy.
9. No sooner had we (finished) the translation of the text than the bell (rang).
14. She is always (borrowing) from me and never (remembers) to pay me back.