2. Определите функции и части речи выделенных слов; переведите данные словосочетания на русский язык.

1. all plants manufacture sugar; the manufacture of carbohydrates by plants 2. fats in the form of their derived compounds; brans form the outer covering of the grain 3. important functions performed by proteins in animal life; chief food constituents function as contributors to the body's life and activity 4. the food value of vegetables; people value vegetables for their high vitamin and mineral content 5. one must dry grain after harvesting; dry grain stored in the elevator 6. the influence of heat on foods; the rise of temperature greatly influences the properties of the substance being heated 7. the necessity to cool bread after baking; the requirement for cool air 8. a characteristic of many vitamins; a characteristic property of minerals 9. constant changes of pressure; high pressure completely changes the physical state of this substance 10. the support of normal growth and development; the ability to support life

З. Укажите номера предложений, в которых выделенные слова являются глаголами.

1. The lack of minerals and vitamins in the diet may cause different diseases. 2. The rise of the temperature has resulted in the acid decomposition. 3. Fruit and vegetables in the diet considerably increase its supply with vitamins. 4. Vitamin A stimulates growth and aids in general well-being. 5. One may number twelve essential chemical elements in the body composition. 6. In appearance wheat may be red or white according to the colour of the outer skin of the grain. 7. The body’s need for energy is met through carbohydrates, fats and proteins. 8. The term "sugar" to most people means cane or beet sugar. 9. It is clear that cooked and fresh meat cannot taste alike. 10. The aim of the experiment was to free the substance from impurities. 11. The research was aimed at studying the composition of the diet free of sugar. 12. An important supplement to the list of food constituents was vitamins discovered only at the beginning of the 20th century. 13. Speaking about a well-balancd diet we should first of all list staple foods essential for nutrition. 14. Different sugars are present in food but all of them are responsible for a sweet taste of certain products. 15. Too long heating results in a considerable deficiency of vitamins in foods.

4. Переведите на русский язык следующие предложения.

1. The body stops to grow and loses the capacity to work when the amount or kind of food is inadequate. 2. The cause of grain spoilage was its storage under improper conditions. 3. The stop of the experiment caused by the lack of the equipment has negatively influenced our research. 4. The rise of temperature and moisture content causes great losses of grain during storage. 5. Variation in the quality of proteins has resulted in their classification as complete, partially complete and incomplete. 6. The results of the analysis were unfortunately very poor. 7. In spite of the difficulties they completed the research in time. 8. Our aim was to research the influence of ultra-violet light on some vitamins. 9. As a result of bacteria fermentation dough considerably rises and assumes a light spongy character. 10. The change of the properties of this vitamin results from the exposure to light. 11. Green colour of plants from light to deep, is accounted for by the presence of chlorophyll. 12. Even a great amount of air has light weight. 13. A significant part of the total content of the grain is composed of minerals. . 14. Nowadays, to part the insade of the grain by machinesinto is quick and easy. 15. People plant forests throughout the world because since ancient times they have played an important part in human life. 16. Sugar crystals of even shape and size are most desirable in sugar-production. 17. Special machines shape dough pieces into loaves. 18. The mean daily requirement of energy for women is 2,300 calories while for men it amounts to 2,600 calories. 19. When a nutritionist uses the word "energy" he means the capacity to do work. 20.The energy supply of the human body is obtained through the food eaten. 21.Foods supply a human body with everything essential for life and development. 22. The term "food" is commonly used to refer to those substances that form a part of the usual human diet. 23. The dough pieces are usually of a round form. 24. The machine that rounds dough pieces into balls is called a rounder. 25. If the body lacks iron it is necessary to include certain foods such as meat,vegetables and egg yolk into the diet. 26. Fats form a protective layer around the nerves. 27. Wе often have to skin fruits before eating,for example oranges and mandarins. 28. By stripping the skin of vegetables people make them deficient in minerals. 29. The most characteristic representative of vegetable proteins is glutenin. 30. Proteins are complex in nature and are composed of a number of amino acids linked together and amino acids having links with other substances.