Упр . 5 . Отгадайте : What vitamin is this?
Поможем в ✍️ написании учебной работы
Поможем с курсовой, контрольной, дипломной, рефератом, отчетом по практике, научно-исследовательской и любой другой работой

1. It is present in carrots, fruit, butter. 2. It is needed to strengthen our nervous system. 3. It is necessary for bone and tooth formation. 4. It is present in egg, butter, fish, dairy products. 5. It is needed to increase resistance to infection.

Упр. 6. Прочитайте текст.

Vitamins

Vitamins are classified as fat-soluble or water-soluble based on how they are absorbed by the body. Vitamins A,D,E and K are fat soluble. Vitamin C and the B-complex vitamins (thiamine (B1), riboflavin (B2), niacin (B3), pantothenic acid (B5), vitamin B6, vitamin B12, biotin, and folic acid are water- soluble.

Until the 1900s, vitamins could only be obtained by eating food. Now they are commercially available. There are a few vitamins that we obtain by other means than directly from the diet: for example, microorganisms in the intestine- commonly known as guta flora – produce vitamin K and biotin. One form of vitamin D is synthesized in the skin with the help of natural ultraviolet sunlight. Some vitamins can also be obtained from precursors that can be obtained in the diet. Examples include vitamin A, which can be produced from beta carotene and niacin from the amino acid tryptophan.

Vitamins enable the body to use the calories provided by the food that we eat and to help process proteins, carbohydrates and fats.

Vitamins have diverse biochemical functions. Some have hormone-like functions as regulators of mineral metabolism(e.g., vitamin D), or regulators of cell and tissue growth and differentiation (e.g., vitamin A). Others function as antioxidants (e.g., vitamin E and sometimes vitamin C).The B-complex vitamins function as precursors for enzyme cofactors, that help enzymes in their work as catalysts in metabolism.

Word – box

1. obtain - получать

2. available - доступный

3. means – способ, средство

4. gut flora – кишечная флора

5. sunlight – солнечный свет

6. precursor – прекурсор, предшественник

7. diverse – различный

8. enable – давать возможность

Упр. 7. Найдите в тексте английские эквиваленты следующих слов и словосочетаний:

основываясь на том, как они всасываются; водорастворимые, никотиновая кислота; другим способом, естественный солнечный свет, функции, похожие на функции гормонов, регуляторы минерального метаболизма; регуляторы роста и дифференциации клеток и тканей, действуют как прекурсоры, фермент

Упр.8. Ответьте на вопросы

1. How are vitamins classified?

2. What are fat-soluble (water-soluble) vitamins?

3. Can vitamins be obtained only by eating food?

4. Can we obtain vitamins by other means?

5. Do vitamins enable the body to use the calories provided by the food?

6. Vitamins have diverse biochemical functions, don’t they?

7. Do vitamins help process proteins, fats, carbohydrates?

Упр . 9 Найдите соответствие

Vitamins have diverse biochemical functions. What are these vitamins? What are their functions?

Vitamin D antioxidant
Vitamin A  regulator of mineral metabolism
Vitamin B  regulator of cell and tissue growth and differentiation
Vitamin C,E  helping enzymes in their work as catalysts in metabolism

 

Упр. 10.Дополните текст данными ниже словами:

teeth organs enzymes nervous system cells
brain eyes skin immune system  
blood muscles bones cardiovascular system  

Vitamin C is needed to help the                       1 repair itself when it is cut or damaged. It is found in fruit, especially citrus fruit like oranges and grapefruit.

The B-vitamins keep the                                 2 healthy and help reduce stress. They are found in foods like wholegrain bread and cereals.

Vitamin A keeps the                      3 healthy and is important for good vision. It is found in fatty foods like butter, cheese, whole milk, and yoghurt.

Vitamin D is needed for healthy bones and__________                   4 because it helps the body absorb calcium. Our body makes Vitamin D when our                5 is exposed to sunlight.

Calcium is needed for children's                 6  and teeth to grow. It is found in foods like milk, cheese, and yoghurt.

Iron helps your                   7 carry oxygen. If you do not get enough iron, you will be pale and tired and you may get anaemia. Iron is found in red meats, especially liver.

Zinc makes your            8 stronger so that you can fight colds and infections. It is found in shellfish, nuts, and seeds.

Omega-3 is an essential fatty acid which helps your         9 function well. It is found in oily fish like mackerel, sardines, salmon, and tuna.

Protein builds up, maintains, and replaces the tissues in your body. Your

                 10, your               11, your immune system are made up mostly of protein.

Carbohydrates are sugars which are broken down by                  12, then stored in the           13 as a source of energy. Grain products such as rice, bread, and pasta are sources of carbohydrate.

Fats fuel the body and help absorb some vitamins. They are also the building blocks of hormones, and they insulate nervous system tissue in the body. Unsaturated fats, found in oils and nuts, for example, are believed to protect the                          14.

Упр . 11 Соотнесите слова с их определением.

1. balance a.  taking regular exercise
2. childhood b. small amounts of food that you eat between meals
3. diet c.  sugar that the body uses for energy
4. glucose d. the time of your life when you are a child
5. active e.  the correct amount of different things
6. obesity f.  the type of foods that you usually eat
7. overweight g. the condition of being very fat, in a way that is not healthy
8. snacks h. too heavy and fat

 

Упр . 12 . Заполните пропуски словами из упражнения 1 1 .

Diabetes occurs when your body does not produce enough insulin, a hormone that controls the level of ___ (1) in the blood. One type of diabetes appears in ___ (2) and the other type appears the age of eighteen.

It is very common for very ___ (3) people to get diabetes, so the illness is linked to ___ (4).

For this reason, it is important to get the right __ (5) between food and exercise. It is important to be ___ (6), and to eat a healthy ___ (7), containing plenty of fruit and vegetables. Nutritionists say ____ (8) are better than big meals.

 

Дата: 2019-02-25, просмотров: 1229.