Блоки аудирования и чтения. Read the text. Choose the most suitable heading from the list 1-5 for each paragraph of the text

much time is usually given to each speaker for presenting a paper?

1.   No one knows how much time.

2.   Fifty minutes at the most.

3.   Fifteen minutes at the most.

4.   Twelve minutes at the most.

5.   Twenty minutes at the most.

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Вопросы

Варианты ответов

16.

What is the term "cast iron" referred to?

1.   It identifies a large family of ferrous alloys.

2.   It identifies a large family of non- ferrous alloys.

3.   It is used to talk about precious metals.

4.   This term is not used anymore.

5.   No information is given.

17.

How can the properties of cast irons be changed?

1.   By forging.

2.   By changing the balance between carbon and silicon, by alloying with other elements by melting, casting and heat treatment.

3.   By elongation.

4.   It is impossible.

5.   No information is given.

18.

What properties make cast iron useful?

1.    They are fluid when molten and have low melting temperatures.

2.   They have low impact resistance and ductility.

3.   They have low freezing points.

4.   They have high melting temperatures.

5.   No information is given.

19.

What can limit the use of cast iron?

1.    The fact that they have low melting temperature.

2.   The fact that they have high melting temperatures.

3.   Their high boiling point.

4.   Low impact resistance and ductility of cast iron.

5.   No information is given.

20.

What do both mechanical and physical properties of cast irons depend on?

1.   They depend strongly on structure and distribution of microstructural constituents.

2.   They depend on microstracture.

3.   They depend on the professional skills of metallurgist.

4.   They are influenced by strength and ductility of cast iron.

5.   No information is given.

21.

What does paragraph 4-th say about cast irons?

1.   It describes origin of cast iron names.

2.   It describes malleable iron.

3.   It compares ductile iron and malleable iron.

4.   It compares white iron and grey iron.

5.   It describes types of cast iron and their names.

22.

How many types of cast iron are considered to be basic ones?

1.   There are a lot of types of cast irons which could be called the main ones.

2.   There are five basic types of cast iron.

3.   We can define four types of cast iron as basic.

4.   None of the cast irons is considered to be the basic one.

5.   No information is given.

23.

Where did the white and gray iron get their names from?

1.   They derive their names from the appearances of their fracture surface.

2.   Their names reflect their mechanical properties.

3.     These types of cast iron were named after famous metallurgists.

4.   They were named so just for fun.

5.   No information is given.

24.

How can we produce malleable iron?

1.   It is produced with the help of chilling.

2.   It is produced as a by-product of forging.

3.   We can get it when white iron is malleablized.

4.   It is impossible to get malleable iron.

5.   No information is given.

25.

What is the second name for 'vermicular iron'?

1.   Mottled cast iron.

2.   Chilled cast iron.

3.   Ductile cast iron,

4.   Compact graphite cast iron.

5.   No information is given.

26.

Most of the functions in the human body are controlled by hormones. Insulin, a hormone produced by the pancreas, controls the amount of: sugar in the blood, which is then used by the body to generate energy. The insufficient production  of insulin  leads to  a common disorder called diabetes.

1.   Insulin is produced by the liver.

2.     Diabetics   should  weigh  themselves weekly.

3.    All of the functions in the human body are controlled by blood pressure.

4.    Diabetes is the result of inadequate insulin being produced.

5.    Diabetics    should be able to enjoy normal and healthy lifestyles.

27.

Having diabetes does not mean giving up all your favourite foods and eating differently from family and friends. However, a sugar-free diet   still   remains  the   cornerstone   of the treatment   of  diabetes.   Nowadays,   doctors recommend that people with diabetes should continue their lives as usual, but should follow a well-balanced and healthy diet.

1.   Diabetics should be careful with foods which contain a lot of sugar

2.   Insulin injections are widely used, but they are not very helpful.

3.   Some foods help to keep blood sugar down.

4.   Diabetics can't lead a normal life.

5.   There is no reason why diabetics should not enjoy a normal life.

28.

. The     British     Diabetic     Association recommends controlling body-weight, reducing fat   consumption   and   eating   more   fruit, vegetables and starchy food. If there is a need to lose weight, realistic short-term targets are most helpful. Aiming for a slow but steady weight loss of one kilogram per week is ideal, until the desireod weight is achieved. Including more  exercise   in  your daily  routine,   and checking your weight once a week are also recommended.

1.   Biscuits contain a lot of fat.

2.   Weight control and regular exercise play an important role in a diabetic's life.

3.   Diabetics should eat plenty of fruit.

4.   The B. D. A. is at the public's disposal.

5.   Food with high amounts of sugar should not be avoided.