Revision exersices

I.Changethe following sentences from Active into Passive Voice

1. My brother carries out many interesting experiments in our lab. 2. The engineer often gives the workers instructions. 3. The teacher often shows the students new devices, 4. In the assemble shop the workers assemble parts and fit them on the body of the machine. 5. My friend sends me two reference books a year. 6. In the engineering shop engineers repair engines. 7, The postman brings us newspapers and letters in the morning.

II. Use the Present Indefinite Passive. Mind the place of the Preposition in the sentences. Translate the sentences:

1. We always look through the results of your experiments with great interest. 2. Students speak much of the new device which is used for measuring pressure. 3, They often refer to the facts given by you. 4. Many students attend your lectures. 5. He always looks through my reports. 6. The discussion usually follows the experiments. 7. We look upon crude oil as one of the most useful products. 8. What do we obtain petrol and paraffin from?

III. Translate the following sentences into Ukrainian paying atten­tion to the Predicate in the Present, Past, Future Perfect Passive Voice

1. Electronics has made a rapid progress. A further progress has been made in microwave systems. 2. When the designer came we had already installed new equipment. New equipment had been installed in our shop when the designer returned to the plant. 3. By the end of this week the students will have conducted all the experiments. By 8 o'clock all the experi­ments will have been conducted. 4. T he radar has been used for automatic control of automobiles. 5. The majority of valves have already been replaced with tiny transistors. 6. By the middle of the 19th century about 60 elements had been discovered. 7. By he end of t he year a large variety of semicon­ductor devices will have been produced.

IV. Put the Verbs in brackets in the required tense form and translate the sentences into Ukrainian.

1. We believed that we (can) get seats a first-class compartment.

2. I knew that Fred usually (to travel) second-class.

3. I hoped if I (to go) by the 10 o'clock train I (not to have to) change.

He didn't know that it (to be) to start.

We knew that the 2 o'clock train (to start) already and decided to go by the next train.

6. I didn't know that it (to be) a slow train.

7. We hoped that our friend (to be able) to come to the station in time.

8. I thought I (no to be able) to get to the station in 30 minutes and I (to

have) to take a taxi.

9. I knew that we (to have) to have a snack at the station as there (to

be) no buffet-car on the train.

V. Translate the following sentences into Ukrainian paying attention to the meaning word "time":

time: 1. The world exists in space and time. 2. Six o'clock is a point of time; six hours is a period of time. 3. The conductivity of this alloy is about 10 times that of iron. 4. Four times five is (are) twenty. 5. Iron was first used in prehistoric times. 6. For the first time a scientific study of the atmosphere of Venus was done practically simultaneously in two parts of the planet. 7. Saturn is twelve times the distance of the Earth from the Sun. 8. The pulsesof radar are timed in such a way that the same aerial (антена) can be used for reception as well as for transmission.