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11 Проанализируйте функции глаголов to be и to have и переведите их на русский язык.

А. 1 These experiments are regularly carried out in our lab.

2 This experiment was successfully carried out a few years ago.

3 The experiment will be carried out in December.

B. 4 According to the information we have, the experiment is being carried out in our lab.

5 The experiment has been carried out successfully, and the results will soon be published.

6 The experiment has to be carried out twice.

7 The experiment is to be carried out in December.

12 Переведите предложения на русский язык, обращая внимание на время, в котором стоит сказуемое.

  1. I have attended lectures on history since May.

  2. I attended lectures cm history in May.

  3. He has entered the Institute this year.

  4. He entered the Institute last year.

  5. Have you passed your examination?

  6. Did you pass your examination on Friday well?

  7. He has already returned to Moscow.

  8. He returned to Moscow five days ago.

  9. They haven't received any good results.

  10. They didn't receive any good results when they worked with this type of equipment.

  11. The temperature has been maintained at the point of 20 degrees since the beginning of the experiment.

  12. During the experiment the temperature was maintained at the point of 20 degrees.

  13. Has the new apparatus been already installed in the laboratory?

14 When was the new apparatus installed in the laboratory?

15 The new apparatus had already been installed when the delegation arrived.

13 Ответьте на вопросы, обращая внимание на использование Present Perfect и Past Simple (Indefinite).

Образец: Has he tested the machine yet? (a few minutes ago)

Yes, he has. He tested it a few minutes ago.

1 Have you seen the boss today? (an hour ago) 2 Has she received any results? (yesterday) 3 Have you brought the apparatus for the experiment? (this morning) 4 Has your son finished experimenting? (last month) 5 Have you typed the documents? (this afternoon) 6 Have you written to your parents? (last week) 7 Has he determined the properties of the substance? (a few minutes ago) 8 Have you filled in the form yet?(on Friday morning) 9 Have you installed the new apparatus? (an hour ago) 10 Have they finished their experiment? (yesterday)

14 Спросите у своего друга, выполнил ли он следующие действия и когда он их выполнил. Обращайте внимание на использование Present Perfect и Past Simple (Indefinite):

Образец: Have you completed the task?

Yes, I have.

When did you complete it?

Two hours ago.

Make the plan, speak to the boss, write the test paper, carry out the experiment, find your documents, read the instructions, install the device, type the documents, contact he factory manager, discuss the problem with the specialists, visit an exhibition.

15 Употребите глагол в скобках в нужном времени активного или пассивного залога. Затем переведите предложения.

1 Не ... (to be interested) in history since his childhood.

2 The positive results ... (to be obtained) until a more powerful apparatus was installed.

3 They ... (to determine) the main properties of the substance.

4 The explanation of these strange facts ... (to be given) yet.

5 He ... (to be offered) a very interesting job at that Institute.

6 All the necessary information ... (to be stored) in the computer.

7 After careful consideration your report ... (to be published) in one of the forthcoming issues of the journal.

8 The problem of the future of human civilization on the Earth is ... (to be studied) by the scientists throughout the world.