Translate and memorize the following words.

ability	distinguish	refer to
density	conduct	resistant
solubility	combine	noble
acidity	comprise	common
hardness	compose	pure
odour	arrange	rare

2. Read aloud and pay your attention to the stress and suffixes of the verbs:

oxide – to ′oxidize	catalyses – ´catalyze
electrolysis – to e´lectrolyse	liquid – to ´liquefy
analyses – to ´analyze	solid – to so´lidify
crystal – to ´crystallize	class – to ´classify
vapour – to ′vaporize	pure – to ′purify
unit – to u′nite	hydrolysis – ′hydrolyze

3. Read the following words and define the parts of speech without a dictionary:

ability – able; conduct – conductive – conductivity – conductor; combine – combination – combining; odour – odourless; hardness – hard; soluble – solubility – solution – solve; compose – composition; comprise – comprising; acidity – acid – acidic; resistant – resist – resistance.

Study and remember the following chart:

1. The student translating the article knows English well. 2. Translating the article the student doesn’t consult the dictionary. 3. While(when) translating the article the student didn’t consult the dictionary. 1. The article translated by the student is very actual. 2. The article translated has many fresh ideas. 3. When translated the article was sent to him. 4. If translated well the article will be presented in the seminar.

1. The experiment being carried out now is very important for my work. 2. Being very experienced the analyst can help us.

4. Translate into Russian:

a. give – giving – given by her; get – getting-got by them; see – seeing – seen by him; know – knowing – known; learn – learning – learnt by us; take – taking – taken by us; define – defining – defined by them; observe – observing – observed by him;

b. when studied; if arranged; being combined; as observed; while defining; when asked; while doing; when done; as written, if referred to.

5. Form the Participles from the following verbs:

to read, to compose, to write, to work out, to charge, to leave, to carry out, to make, to discover, to conduct, to combine.

6. Translate the following word-combinations into Russian:

a. An acting law; a living organism; the working analyst; the running students.

b. Students going to the laboratory; specialists making experiments; scientists developing chemistry; the teacher explaining the problem.

c. While reading scientific magazines; when going to the University; while making experiments.

d. Being a good chemist; having no time; being very experienced.

7. Translate the sentences into Russian:

A. 1. The books recommended by our lecturer are very important. 2. The given books are interesting. 3. The data asked are necessary. 4. The formed water is a comprising part of vegetable and animal matter. 5. Being a good chemist he can make many experiments. 6. Having no time he must do this work quickly. 7. Being an experienced the analyst always comments experiments both clear and shortly. 8. The observed substance is an alkali-earth metal. 9. Under normal conditions the given element is a colourless, tasteless gas. 10. The element seen by him is oxygen.

B. 1. The book referred to is mine. 2. The article referred to in this book is of great importance. 3. The book referred to in this work was published this year. 4. The list of elements referred to is important. 5. Use the information referred to in this paper in your report. 6. The new book is much spoken about. 7. These data will be often referred to. 8. The analyst has been sent for. 9. Mixtures are often experimented upon. 10. Chemical substances are worked at. 11. These data can be relied upon. 12. Mercury is often made use of.

8. Translate into Russian:

рекомендованная литература, найденный ими, наблюдаемый сейчас, при переводе, наблюдаемый газ, написанный им, прочитанный ими, распределенные Менделеевым, определенные химиком, составленные ими, взятая ею, полученные им, расположенные ею, проведенные им.

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