М. М. Кутепова The World of Chemistry Мир

Find in the text synonyms to the following words:

1. 
   wants, 2. weakness, 3. tools, 4. complexity, 5. oppose, 6. demand, 7. provide, 8. register, 9. discover, 10. obtainable, 11. humidity, 12. contend, 13. withstanding, 14. strange, 15. weak, 16. huge, 17. elastic, 18. currently, 19. better
   

8. 
   Give chemical terms to the following definitions:
   

1. 
   Any of large group of organic compounds found in all living organisms.
   
2. 
   A synthetic or naturally occurring polymer used in making plastics.
   
3. 
   A polysaccharide that consists of a long unbranched chain of glucose units.
   
4. 
   A liquid that dissolves another substance or substances to form a solution.
   
5. 
   A process of boiling a liquid and condensing and collecting a vapour.
   
6. 
   A suspension of small particles produced in a liquid by chemical reaction.
   
7. 
   A homogeneous mixture of a liquid with a gas or solid.
   

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9. 
   Study carefully grammar material to Unit 8 and find in the text all the sentences containing the subjunctive mood, emphasis and inversion. Translate them into Russian.
   
10. 
    Translate the following sentences into Russian:
    

1. 
   It is necessary that this substance should be analysed under suitable conditions.
   
2. 
   If they used these materials, the cost of production would not be expensive.
   
3. 
   Everybody should know that Russian scientists developed methods of obtaining strong and cheap glass fibre.
   
4. 
   If you use such fibres, the material will be durable.
   
5. 
   Had they known about this new discovery earlier, they would have applied the method in their investigation.
   
6. 
   Were I in your place, I should investigate the properties of these synthetic materials before using them.
   
7. 
   The professor insisted that I (should) take part in the conference.
   
8. 
   It is desirable that a chemist (should) know the structure of a polymer.
   
9. 
   Unless synthetic polymers possessed such valuable properties, they would not be so important for industry.
   

11.