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X. Translate the paragraph into English.

Нашe сучасне життя неможливо уявити без комп’ютера. В ході промислової революції, людство зробило величезний крок вперед у всіх сферах життя і наукових дослідженнях. Все це призвело до появи техніки, здатної ефективно замінити деякі можливості людського розуму. Для чого потрібен комп’ютер в літаку? Літаки часів Першої Світової Війни були оснащені двигуном, шасі, крилами і кулеметом. Саме тому ці ненадійні машини так часто падали. Сучасні потужні комп’ютерні системи допомагають керувати літаком, підтримувати постійний зв’язок з пілотами, слідкувати за роботою всіх систем.

GRAMMAR

Time clauses

Time Clause answer the question when? Time clauses cannot stand alone except as an answer to a question. The time clause can come before or after the main clause. When it comes before, it is usually folowed by a comma. But if the main course comes first, no comma is used.

  • While Anna was sleeping, a plane flew over her house.

  • I'll start driving when you give me the keys.

Which conjunction?

  • things happening at the same time – while, when, as

  • one thing happening after another – after, before, as soon as, once

  • every time – whenever, every time

  • when things started – since, ever since

  • when things finish – until, by the time

XI. Complete the sentences using the appropriate conjunctions mentioned above.

e.g. .By the time the experiment finishes, they will receive all data.

1. He has had the same job _____ he graduated from the university.

2. He's taking a year out _____ he goes to university.

3 I had to wait a week _____ I got an answer.

4. _____ I had read the whole report, I began to understand the nature of the problem.

5. _____ she has the chance she likes to visit the gym.

6. _____ I have some news, I'll phone you.

7. _____ she had finished her degree, she got a job in marketing.

8. You'll find it gets easier _____ you get more experience.

9. It sounds easy _____ you try explaining it to somebody else.

10._____she was studying at college, she stayed in the Halls of Residence.

Tenses in time clauses

Past Continuous vs. Simple Past in Time Clauses

Time Clause

Main Clause

actions happening at the same time

While the researchers were doing calculations,

the designers were constructing the prototype.

actions describing an interrupted activity

While I was waiting for the bus,

I heard a crash.

actions that happen in a sequence when, before, after, as soon as

When she entered the room,

she turned on the light.

Future Time Clauses

Future time clauses begin with time words such as when, as soon as, after, before, until, and while. Do not use the future tense in the time clause.

  • I’ll come home when I finish work.

  • You must wait here until your results are ready.

  • As soon as I read the article, I'll help you with your homework.

XII. Fill in the gaps with the correct form of the verbs in brackets paying attention to time clauses.

1. When the manager arrives, they _____ (start) the meeting.

2. When he _____ (run) one of the most successful businesses in the Silicon Valley, he dressed informally and his office was an open cubicle that looked like everyone else’s.

3. When IBM _____ (release) its first personal computer in 1981, Alpert _____ (buy) the first two models.

4. While he _____ (work) with these pio­neers of computer engineering, he _____ (learn) many things about com­puters and business management.

5. A Frenchman named Benedictus _______ (introduce) the idea of making safe­ tiny glass in 1903 after he _______ (discover) a chemical that held broken glass together.

6. Whenever the inventor ______ (work) on an innovation, he withdrew to his house because he didn’t want to be disturbed.

7. When computers are not working, it is inevitable that work _____ (delay).

8. I will have to finish the reports before the manager _____ (call).

9. _____ ( not forget) to call your manager about the sales as soon as you get to the hotel.

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