Контрольная работа по Английскому языку на тему: "Обогащение полезных ископаемых "

Вариант №2

1. Прочитайте и письменно переведите следующий текст:

Exploration of Mineral Deposits

Exploration is known to include a whole complex of investigations carried out for determining the industrial importance of a deposit. The main task is to determine the quality and quantity of mineral and the natural and economic conditions in which it occurs. The exploration of the deposit is divided into three stages, namely preliminary exploration, detailed exploration and exploitation exploration.

The aim of preliminary exploration is to establish the general size of a deposit and to obtain an approximate idea of its shape, dimensions and quality. At this stage the geological map of the deposit is corrected and a detailed survey of its surface is completed.....
 

1. 3. Укажите, какие предложения соответствуют содержанию текста. Подтвердите свои ответы фактами из текста.

1. The purpose of preliminary exploration is to determine the mineral reserves and their distribution in the different sectors of the deposit.
2. The properties of the surrounding rock and overburden should be taken into consideration during the preliminary exploration.
3. The purpose of the detailed exploration is to find out the quantity (reserves) of the deposit.
4. Exploitation exploration facilitates the planning of current production.
5. Both core drilling and non-core drilling are widely used.
6. Recording control instruments allow geologists to get reliable ore samples.

1. 4. Письменно ответьте на следующие вопросы по тексту:

1. What stages does exploration include?
2. What is the main purpose of preliminary exploration?
3. What should be taken into consideration by geologists during preliminary exploration?
4. What exploratory openings do you know?
5. Do you know how the quality of the mineral deposit is determined?
6. What is the aim of a detailed exploration?
7. Is core drilling used in prospecting for loose rocks?
8. What is drilling equipment used for?

1. 5. Найдите в правой колонке:

а) русские эквиваленты следующих сочетаний слов:
 

1. bedded deposits
2. core drilling
3. the angle of dip of the seam
4. the thickness of overburden
5. exploratory workings
6. composition of minerals
7. pits and crosscuts
8. to exploit new oil deposits
9. sampling
   10. geological section
   
   б) английские эквиваленты следующих сочетаний слов:
   
   1.буровые скважины
   2. по простиранию пласта
   3. равномерность распределения минерала в залежи
   4. водоносность пород
   5. карбидные и алмазные коронки
   6. детальная разведка
   7. использовать новые поисковые методы
   8. проникать в залежь
   9. коренная порода
   10. свойства окружающих пород
   
    
10. 7. Заполните пропуски в предложениях, используя приведенные слова:

11.  

    bed          bedded         bedding

     

    а)  1. Exploration of gently dipping  ...  deposits is performed by vertical pits.

    2. The principal indicator of the economic importance of combustible shales is the persistence (постоянство) of the   ...s in thickness and grade.

    3. As is known, any change in the normal  ...  of a seam is called a disturbance.

     

     

    work       workable       working

     

    б) 1. The term «prospecting» covers the whole range of geological  ...  aimed at discovering  ...  deposits.

    2. Naturally, the prospector also finds non-... mineral concentrations more often than economic ones.

    3.  Many countries have their own classification system of ... deposits.