4. Переведите данные предложения на русский язык, выделив подлежащее.

1. It is known that proteins contain different chemical elements. 2. It is evident that proteins are complex in nature. 3. It is said that cereals and cereal products are valuable sources of proteins. 4. 0ne should know that proteins classification is based on their variation in quality. 5. One can find protein in many different foods. 6. Maintaining life partially complete proteins do not support normal growth. 7. Maintaining life is the most significant function of proteins. 8. To include a new product into the baby diet one should be aware of its high food value. 9. To include a new product into the baby diet requires the awareness of its high nutritive value. 10. That proteins are complex in nature is proved by their composition. 11. That he has carried out very interesting research in the field of baby nutrition is known to us. 12. That the human diet should be diverse and nutritive is shown by life itself.

5. Переведите на английский язык, используя инфинитив, где возможно.

1. Необходимо включать в рацион человека пищу, богатую белками. 2. Для того, чтобы узнать характеристики белков, ученые изучали долгое время их функции. 3. Классификация белков зависит от их способности содействовать нормальному росту организма. 4. Поддержка нормального роста организма и сохранение жизни зависят, главным образом, от полноценных белков. 5. Известно,что частично полноценный белок способен поддерживать жизнь организма, но не содействовать его нормаль­ному росту. 6. Следует знать, что белки растительного происхождения в основном являются неполноценными белками. 7. Важно,чтобы человек потреблял пищу, богатую различными белками. 8. То, что на здоровье человека во многом влияет пища, богатая белками, нельзя забывать.

Упражнения по грамматической теме

"ИНФИНИТИВ И ЕГО ФУНКЦИИ"

(см. таблицу стр. 9)

1. Укажите номера форм инфинитива, выражающих:

а/ одновременность действия,

б/ предшествование,

в/ пассив.

l. to supply 2. to be maintained 3. to have utilized 4. to be changing 5. to have been classified 6. to vary 7. to be dissolved 8. to be growing 9. to have been supplemented 10. to be protected 11. to have stored 12. to be developing 13. to have been depleted 14. to have derived

2. Переведите предложения на русский язык, выделяя инфинитив.

ФУНКЦИИ:

А. Подлежащее: перевод: 1) неопределенной формой глагола

2) существительным

I. To live without food is impossible for any living organism. 2. To maintain the balance of minerals in the body requires the consumption of such foods as cereals, meat, milk, eggs, fruits and vegetables. 3. To include cereals into the human diet is essential due to their high nutritive value. 4. To protect nerves from shocks is one of the functions of fats. 5. To estimate the contribution made by foods was always the most important problem for nutritionists. 6. To supply the body with energy is necessary for its growth and development. 7. To keep products fresh is possible by proper conditions of their storage.

Б. Обстоятельство перевод: 1) неопределенной формой глагола

2) существительным

В функции обстоятельства цели возможно использование словосочетания

"in order to..."; место в предложении: а/ на нулевом месте, б/ после сказуемого.

1. In order to live the body needs a variety of foods. 2. In order to be digested foodstuffs must undergo enormous changes in the human body. 3. In order to maintain normal growth of the body its food should contain proteins. 4. To produce sugar for its food a plant combines carbon and oxygen with water.5. Fats form a protective layer around the nerves in order to prevent them from shocks. 6. In everyday life the word "food" is used to designate anything edible. 7. Calcium and phosphorus must be present in our body to make bones and teeth as well as to perform some other functions. 8. To determine the value of new food products nutritionists carry out a thorough investigation of their chemical and physical properties.