Ex. 2 Replace the following complex sentences or groups of sentences by simple sentences with the Infinitive.

Model: I entered this university because I wanted to study electronics.

I entered this university to study electronics.

1. If you want to become a successful engineer, you should constantly develop your knowledge and skills.

2. Mechanical engineers design machine-tools. This is their task.

3. Richard Trevithick, an English mechanical engineer and inventor, was the first man

who used a steam engine on a railway.

4. This engineer is not qualified enough. He can’t take part in the project.

5. The problem that we are to solve is connected with making the new body scanner as safe as possible.

6. I am glad that I have finished the calculations for the new engine at last.

Ex 3. Open the brackets using the appropriate form of the Infinitive.

1. Even in ancient times people were ingenious enough (to develop) efficient devices

and methods of work.

2. The methods (to introduce) are extremely useful for solving many practical problems.

3. Wind, water and sun may be used (to provide) energy.

4. The young engineer hoped (to involve) in designing a new type of engine.

5. He is lucky (to study) abroad and (to learn) so much.

6. It was very wise of you (to check) the results of the experiment once more.