1. Combine the following words to receive word-combinations:

acid alloying cooking corrosion electric everyday ferrous melting musical non-ferrous sheet thermal water wide

conductivity conductivity element heater instrument life metals metals point range resistance tank utensil zinc

2. Make nouns from the following verbs:

to describe, to propose, to use, to differ, to alloy, to mix, to resist, to add, to apply, to conduct, to melt, to contain.

3. Group up synonyms:

expensive, characteristic, application, properly, frequently, usage, costly, various, often, different.

4. Connect the pairs of sentences using the following conjunctions: however, therefore, because.

1. Chromium resists corrosion. Chromium is added to steels to make them rust-proof.

2. Manganese steel is very hard. Manganese steel is used for armour plate.

3. Bronze has a low coefficient of friction. Bronze is used to make bearings.

4. Nylon is used to make fibres and gears. Nylon is tough and has a low coefficient of friction.

5. Tin is used to coat other metals to protect them. Tin resists corrosion.

6. Tin is expensive. The coats of tin applied to other metals are very thin.

7. Stainless steels require little maintenance and have a high strength. Stainless steels are expensive and difficult to machine at high speeds.

8. Nickel, cobalt and chromium improve the properties of metals. Nickel, cobalt and chromium are added to steels.

5. Translate the following sentences into Ukrainian paying attention to the difference in the meaning of the Simple and the Complex Object:

Simple Object	Complex Object
We’d like to take part in this work.	We’d like everybody to take part in this work.
They expect to solve this problem.	They expect our group to solve this problem.
He supposes to send letters by air-mail.	He supposes us to send letters by air-mail.
We’d like to know your results.	We’d like them to know your results.
Our scientists expect to obtain some new data.	Our scientists expect their assistants to obtain some new data.

6. Find sentences with the Complex Objects in the text, write them down and translate into Ukrainian.

7. Translate into Ukrainian paying attention to the translation of the Complex Object.

1. They wanted us to visit their firm.

2. We know him to be a doctor of science.

3. We think our students to be eager to learn English.

4. Our professor wants us to practice English.

5. He ordered the experiments to be carried out as soon as possible.

6. He proved the reaction to have run in cold.

7. You cannot see the tool move.

8. Express the thought by one sentence using the Complex Object:

1. His lectures are very interesting; we know this.

2. The students know these physical laws; we expect it.

3. The new method is a success; the scientist knows it.

4. Our delegation arrived at 9; we did not expect it.

9. Define the forms and functions of the Infinitives and translate the sentences into Ukrainian

1. To use non-ferrous metals it is necessary to know their properties.

2. We know copper to have high corrosion-resistant qualities.

3. Engineers must study characteristics of non-ferrous metals.

4. A group of scientists want some ferrous metals to be tested for elongation.

5. Some alloying elements are added to change the properties of metals.

6. Experiments have proved the elongation of metal to depend on its components.

7. They thought straight bronze to be a mixture of copper and some other elements.