Exercise 1. Find in the text English equivalents for these words and word combinations:
- I (read) an English textbook.
- Usually my friend (read) a lot.
- What you (do) tonight?
- What you usually (do) at the weekend?
- Is mother in the kitchen? – Yes, she is. She (cook) something. She always (cook) at that time.
- Our teacher (speak) two foreign languages.
- Hello. This is Brown speaking. – Sorry, I do not hear you well. Who (speak)?
- What they (do)? – They are going to the lecture. Professor M. (deliver) a course of lectures on chemistry and the students always (listen) to his lectures with pleasure.
Exercise 2. Quote the sentences in which the following words and word combinations are used in the text:
To define, modern chemist, the solution of the problem, to affect the development, to show the interrelationship, to deal with, to carry out, to develop into a system, to attract workers, it is owing to
Exercise 3. Compose sentences, using the following words and wordcombinations:
To define, the definition of, to distinguish between, to be more convenient, the growth of, to make a short survey, to deal with, to describe, at the same time, to provide
Exercise 4. Finish the sentences:
Exercise 5. Answer the questions:
Exercise 6. Translate into English:
Exercise 7. Present Progressive or Present Simple.