3) Say if the statements are true or false.

1.In 1819-1826 an English expedition headed by E. Perry was exploring the Pacific ocean..

2.On board the sailors had some amount of gold.

3.The explorers decided to leave some cans in the Arctic in 1824.

4.When the travellers ate the contents of the cans they marked their good quality.

5.Laboratory analysis of the can taken from London Museum confirmed the absence of any vitamins in it.

6.The result of the laboratory test were incredible.

4) Complete the sentences as in the text.

1.In 1819-1826 an English expedition headed by -------------------------

2.On board the sailors ------------------------------------------------------.

3.After eating the canned beef and the tin of peasoup the travellers------------------------------------------.

4.In 1939 two of the found cans--------------------------------------------.

5.Both cans were found ---------------------------------------.

6.Chemical analysis confirmed -----------------------------------------.

5) Write out all the verbs from the text, define their tense and voice.

6) Match similar words in meaning.

1.analysis usage

2.to explore to assure

3.consumption importance

4.to confirm to mark

5.increadible nourishing

6.nowadays at once

7.nutritional to investigate

8.necessity unbelievable

9.immediately testing

10.to point out at present

7) Ask all possible questions to the sentences.

1 E.Perry was exploring the Arctic seas in1819-182

2.They had some food on board the ship.

3.The tinned food left in the Arctic were found in 1911

4.Several cans were sent to the London Museum.

5.Chemical analysis confirmed presence of vitamin D.in the contents of the ti

8) Translate into english, use the active vocabulary.

1.В наше время консервированная еда просто необходима.

2.Эксперты отмечают сохранность и присутствие витамина Д в консервах.

3.Питательная ценность содержимого консервов, несмотря на срок изготовления кажется невероятной.

4.За последние годы потребление консервов не уменьшилось.

5.Важно, чтобы консервы использовались сразу после вскрытия.

10. Make up a plan to the text “ finding in the Arctic” and retell it according to your plan.

TEXT 5. “NUTRITIONAL VALUE of MEAT “

Meat is one of the main sources of protein in the human dietry. Proteins are used in the building of body tissues, although they can also be used for the production of the heat and energy. Since proteins are high-molecular weight- polymers of aminoacids, upon digestion the proteins are hydrolyzed to their constituent aminoacids.

There are no identical proteins anywhere. A lot of variations in the amounts and combinations of the aminoacids are in proteins from the different sources

Aminoacids derived from food proteins may be characterized as essential or nonessential aminoacids. Essential aminoacids are the most important components of the diet, because they can not be synthesized by the body. Nonessential aminoacids are required too, but they can be synthesized by the body with the need for them.

Food proteins differ in nutritive value because of the differences in their contents of essential aminoacids. High- quality proteins with good nutritive value are more complete and richer in essential aminoacids, than low-quality proteins. In general, most proteins of animal origin are of high quality, while cereal and vegetable proteins have a lower nutritive value.

Although meat is known primarily a protein food, it also contains other dietry substances, such as fat, some vitamins and a few minerals. Fat,because of its high energy value, is responsible for the caloric variations of meat from different animals. Some amount of fat in meat is necessary for palatability. Meat contains several of the B vitamins. Besides it is a good source of dietry phosphorus and iron, but it is low in calcium.

Ex.1. LIST of WORDS

1. source - источник

2. derived - полученный

1. Digestion - пищеварение

2. tissues- ткани, органы

3. to be responsible for- отвечать за

7. primarily- первично, изначально

8. fat- жир

9 essential- основной

10.to contain- содержать

11.consistent- составляющий

12.nutritive, nutritional- питательный

13.phosphorous- фосфор

Ex.2. Insert the prepositions as in the text.

1.Vitamin A is not stable … light, especially ultra-violet light.

2. Milk, cheese,egs, fish oil are rich …. Vitamin A.

1. It has also a function …. Preventing the destruction of other foods through oxidation.

2. It oxidizes readily, and in the presence … heat, alkali and oxigen, oxidation goes … rapidly.

5. The best sources …. this vitamins includes: citrus fruits, peppers, tomatoes.

Ex.3 Match the synonyms

1. easily a. Meal

2. to occur b.wealthy

3. appreciable c. Lightly

4. extent d. Considerable

5. rich e. To happen

6. other f. measure

7. food g. Another

Ex.4. Give the 3 forms of the verbs:

To discover, to stimulate, to dissolve, to distroy, to affect, to know, to have, to do , to go, to be to include, to require, to contain, to put, to use.

Ex.5. Ask questions all possible questions

1.Vitamin D is essential for the development and maintenance of bones and teeth.

2.Ascorbic acid, known as vitamin C is the least stable of all the vitamins.

3The best sources of vitamin K include: citrus fruits, pepper, vegetables, tomatoes.

4.Vitamin A was first discovered in butter,egg yolk, fish liver oil and green vegetables.

Ex 6. Find the word that does not go with the others.

1.food, egg yolk, cream, polite, milk

2. alkali, growth, oxigen, oxidation

3. empty, essential, significant, important

4. fat, protein, carbohydrates, nuttritive.