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Exercise 3. Answer the questions to the text.

  1. What are fishery products rich in?

  2. What are proteins necessary for?

  3. What components are proteins composed of?

  4. Why do we call fish proteins as "complete" proteins?

  5. What are minerals important for?

  6. What are vitamins necessary for?

  7. What fishery products are especially rich in proteins?

  8. In what case does fat become the main source of the body heat?

  9. What parts of fish are used for food?

Exercise 4. Form adverbs of the following adjectives using the suffix -ly and translate the derivatives into Russian:

real, biological, particular, great, vertical, frequent, general, usual, principal, original.

Exercise 5. Match the words and words combinations with their meanings:

  1. covering tissues

  1. общее самочувствие

  1. nutritional anemia

  1. двуокись углерода

  1. thyroid gland

  1. гидролиз и окисление

  1. general well-being

  2. carbon dioxide

  1. малокровие, вызванное недостаточным питанием

  1. hydrolysis and oxidation

  1. щитовидная железа

  1. nitrogenous compounds

  1. покровные ткани

  1. high grade proteins

  1. высококачественные белки

  1. stimulate gastric juice

  2. his metabolism is upset

  1. способствовать выделению желудочного сока

  1. азотные белки

  1. у него нарушен обмен веществ

Exercise 6. Use the following word combinations in questions and answers of your own:

Student A:

Are calcium and phosphorus essential in the treatment of nutritional anemia?

Student B:

No, they aren't. They are necessary for building up the bones, muscles and covering tissues of mаn.

to be provided with

to be important for

to be a source of

to be essential in

to be rich in

to be composed of

to be high in

to be known as

Exercise 7. Translate the sentences into English.

  1. Рыбные продукты очень питательны, рыба – отличный источник белков, которые легко усваиваются человеческим организмом.

  2. Рыба также богата витаминами, минеральными солями и жирами. Белки состоят из аминокислот.

  3. Белки необходимы для поддержания жизнеспособности человеческого организма.

  4. Витамины также важны для роста и общего самочувствия.

  5. Рыба, особенно печень рыб, богата витаминами.

  6. Жир рыбы очень легко усваивается.

Exercise 8. Change the statements to questions supplying short answers.

1. The food value of fish depends on whether it contains a large proportion of high grade proteins.

2. When digested, proteins break up giving amino acids.

3. Amino acids serve to build up the specific protein substances, enzymes and hormones.

4. At the same time amine acids take part in metabolism.

5. They go through a series of changes.

6. These changes are accompanied by the evolution of energy as vital heat.

7. The small amount of non-protein nitrogenous substances in fish stimulates gastric juices and appetite.