a. Укажите чем выражено отрицание в предложениях. Переведите их на русский язык.

1. Popov had no support from the government to continue his research.

2. Not long ago chemists developed new materials that

could withstand high temperatures.

3. No system of measurement of the past is as simple as the metric system.

4. It is no longer possible to put off the solution of ecological problems.

5. Tsarist Russia gave no money for Tsiolkovsky’s research.

6. No one is allowed to smoke in our office.

7. There is no doubt that the development of electronics is one of the greatest achievements of mankind.

8. Half a century is not a long period in the history of civilization.

9. Before Newton no one could explain why the planets moved around the Sun.

10. People no longer think of radio and television as something fantastic.

b. Поставьте сказуемое в отрицательной форме

1. Today our lectures begin at 10 o’clock in the morning.

2. We were school-children last year.

3. We had four entrance exams in summer.

4. Yesterday the first-year students saw the institute laboratories.

5. We took all the necessary books from the library.

6. I got excellent marks for my entrance exams.

7. He knows the meaning of the word “engineering”.

8. The students of our group will meet in the laboratory.

9. The librarian gave us all the necessary books.