Задание 7.Вставьте модальные глаголы по смыслу

1. You can to do this work tomorrow.

2. They can not come yesterday.

3. New equipment … be installed in the lab only next week.

4. They … be more attentive carrying out the test. It is very important.

5. The problem … be solved immediately.

6. They … support his idea of using new techniques in work. It is very expensive.

7. … I use your phone to make a call?

8. You … improve the quality of products.

Задание 8. Составьте четыре типа вопросов (общий, специальный, альтернативный, разделительный) к следующим предложениям

1. Much is being done in the world today for the development of non-traditional sources of energy.

2. Energy plants can be small and large powerful systems.

3. The advances in developing new sources of energy and improving the old ones help to solve the energy problem.

 

Задание 9. Вставьте необходимые предлоги. Переведите предложения на русский язык письменно.

1. Scientists are carrying … the research in different fields.

2. Today engineers are working … the problem … developing non-traditional sources of energy. 3. The electric power stations with the use of a thermal-chemical cycle will operate … products of the transformation of solar energy.

4. Plants which work … the energy of the solar heat provided … the sun will be built in a greater amount.