Задание № 2

Перепишите вопросы и письменно ответьте на них.

1. What main groups of rocks do you know?

2. Do sedimentary rocks consist of particles of pre-existing rocks?

3. How have igneous rocks been formed?

4. Do you know how sedimentary rocks have originated?

5. What is the most important characteristic feature of sediments?

6. Do sedimentary rocks account for 10 per cent of the Earth’s crust?

7. Is gravel a consolidated mechanical sediment? And what about sand and clay?

8. What are cementing substances? Can calcium carbonate be used as a cementing substance?

9. What types of sandstones exist?

10. What are the most principal kinds of sedimentary rocks?

11. Can you give an example of organic sediments? How are they formed

12. Why are water, wind and organisms called external forces?

Задание № 3

Письменно переведите 3, 4, 5, 6 и 9 абзацы текста.

Задание № 4

Перепишите предложения, подчеркните сказуемые, в скобках укажите время и залог, переведите предложения на русский язык.

Образец: Minerals and rocks are widely utilized by modern industry. (are utilized – Present Simple Passive) Минералы и горные породы широко используются в современной промышленности.

1. Geology is a science which deals with the history of the earth and its inhabitants.

2. The atmosphere is heated by the heat from the sun.

3. These rocks were formed from remains of plants.

4. This airplane will land safely on ice in two hours.

5. Prehistoric man used the water from springs, rivers, lakes.

6. The results of the research will be reported by the group of scientists.

7. Ice is never formed in the sea near the British Isles.

Задание № 5

Перепишите предложения, подчеркните причастие II, переведите предложения на русский язык.

Образец: 71% of the earth’s area covered with water is called hydrosphere. 71% площади земли, покрытой водой, называется гидросферой.

1. Seas entirely enclosed by land are very salty.

2. A large tract of land drained by a river is called the basin of the river.

3. The lithosphere composed of solid rocky material makes up the greater portion of the earth.

4. The blanket of the air called the atmosphere covers the rocks and the waters of the earth.

5. Sometimes the molten rock known as magma is forced out to the surface of the earth.

6. When burnt coal produces heat.

7. They will carry out the additional experiments when needed.

Задание № 6

Перепишите предложения, подчеркните слова, оканчивающиеся на суффикс –ed, определите их грамматические функции, переведите предложения на русский язык.

Образец: A piece of land separated from larger masses and surrounded by sea or by water is called an island. Separated - причастие II, определение, surrounded - причастие II, определение, called – причастие II в составе сказуемого, стоящего в Present Simple Passive. Часть суши, отделенная от материка и окруженная морем или другими водами, называется островом.

1. The moon probably separated from the earth at a very early stage in the history of our planet.

2. Glaciers (ледники) deposited their loads on land, in fresh water or in the sea.

3. Man makes many uses of the clays deposited in lakes.

4. We can tell the relative ages of the beds (слой) on the basis of the fossils (окаменелости) contained in them.

5. The rock samples contained fossils of marine plants and animals.

6. The method of investigation used by him is very interesting.

7. He used new data (данные) in his research work.

8. A lot of interesting data were used in this paper.