Exercise VI. Define the tense-forms used in the following sentences and translate them:
1. After I had finished the inspection of the new engine I spoke to the engineer.
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2. We do not know what is good until we have lost it.
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3. They have in this paper discussed an approach to adaptive control.
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4. We had agreed on these matters long before we had chosen the field of our joint investigations.
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5. During recent years methods of measurements have changed considerably.
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Exercise VII. Identify the tenses; then match them to the correct descriptions:
| 1. I have written two letters this morning. | a).expressing anger, irritation or annoyance | ||||||||||
| 2. Lisa has been writingletters all morning. | b).action which started in the past and continue up to the present | ||||||||||
| 3. Someone has been making anonymous phone calls to our house. | c).action which started in the past and lasted for some time. The result of the action is visible in the present | ||||||||||
| 4. Graham has known Errol for five years. | d).action which has happened within a specific time period which is not over at the moment of speaking | ||||||||||
| 5. Mrs. Lyon is upset. Her students have been misbehaving since lunchtime. | e).to put emphasis on the duration of an action which started in the past and continues up to the present | ||||||||||
| 1. | 2. | 3. | 4. | 5. | |||||||
Exercise VIII. Translate the sentences into Ukrainian and define the functions of the Adjectives or Adverbs:
1. The variational method provides a highly precise calculation.
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2. However, the problem still remains difficult.
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3. Our method interprets real symmetries correctly.
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4. The device is highly sensitive to noise.
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5. Both differences are positive.
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6. The speaker spoke quite loudly.
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7. The electric field has a three-dimensional structure.
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8. A statistical approach has recently proved valuable.
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