Контрольная работа по Английскому языку на тему: "The Infinitive"

Task 1. Read the text, write out the infinitives, identify the infinitive (Active: Simple, Progressive, Perfect, Perfect Continuous; Passive: Simple, Perfect). Be ready to translate the text orally.

Man-made Elements

A human being at last understood the elements well enough to make their own.

First there were some elements still missing from the Periodic Table. The fact was they were practically missing from nature, too.  

Scientists had to make these elements themselves. To make such elements meant first of all to carry on great experimental work. Many scientists worked hard at this problem. In 1919 Ernest Rutherford was the first to change nitrogen to oxygen by bombarding nitrogen atoms with alpha-particles.

Task 2. Read the sentences, write out the infinitives, and identify their functions.

Model: There was only one method to be discussed.

to be discussed – attribute

1. To give a true picture of the surrounding matter is the task of natural science.
2. They study English to read English articles on their major.
3. He has to translate the article.
4. The first scientist to discover this phenomenon was M.V. Lomonosov.
5.  To be fully effective control must start with the production of raw materials.
6.  In our experiment we are to compare the two gases.
7.  To explain this simple fact is not easy.
8.  There are many scientific problems to be solved.
9. Our purpose was to determine the effect of X-rays on the substance under test.
10.  It is important to solve this problem.

Task 3. Paraphrase the following sentences using the Objective Infinitive Construction as in the models. Translate the resulting sentences into Russian.

Model I: We expect that they will solve this problem very soon.

               We expect them to solve this problem very soon.

1. The scientists know that this phenomenon is important. 2. They suppose that she will take part in this work. 3. We consider that he knows the subject well. 4. Chemists know that isotopes find wide application both in industry and agriculture. 5. They expect the reaction will go to completion.

Model II: I thought that he had returned.

                I thought him to have returned. 

6. We knew that the invited group of scientists had arrived. 7. They learned that he had carried out the experiments by the end of the week. 8. They expected that he had passed his last exam well.

Task 4. Paraphrase the following sentences using the Subjective Infinitive Construction as in the models. Translate the resulting sentences into Russian.

Model I: It is known that he will make his report today.

               He is known to make his report today.

1. It is believed that the method involved is good. 2. It is expected that they will take part in this research work. 3. It is known that evaporation goes more rapidly at the higher temperature.

Model II: It was found that those rays had been deflected.

                Those rays were found to have been deflected.

1. It was known that the substance had been purified. 2. It was considered that the method had been improved. 3. It was known that the investigations carried out by him had resulted in new discoveries.

Task 5.

1. Learn how to write a letter of enquiry (read the general information).
2. Read the advertisement of the language courses, then make notes to ask questions about additional information. Apart from the questions you would like to ask, enquire also about the prices, teachers, new technologies in teaching (online learning, blended learning, etc.), and the possibility to adapt the course in response to student needs.
   
   3. Use your notes and the paragraph plan below to write a letter asking for additional information (120-180 words). Use the letter in ex. 2 as a model