Выберите эквивалент подчеркнутому слову.

1. The lithosphere makes up about 29% of the earth’s surface.

a. deposits

b. penetrates

c. effects

d. builds

2. The hydrosphere is composed of salt water, fresh water, ice and snow.

a. consists of

b. deals with

c. results in

d. is concerned with

3. Ocean waters contain many minerals.

a. envelop

b. influence

c. include

d. complete

4. The earth consists of three quite different parts: the atmosphere, the hydrosphere and the lithosphere.

a. is included

b. is formed

c. constitutes

d. builds up

5. Almost all rocks include two or more minerals.

a. change

b. constitute

c. increase

d. comprise

6. Ocean waters contain many elements.

a. consist

b. constitute

c. form

d. include

7. Magma comprises large quantities of both oxygen and hydrogen.

a. forms

b. constitutes

c. contains

d. occurs

8. The waters of the Earth include the waters of oceans, lakes and streams.

a. occur

b. comprise

c. divide

d. modify

 

Ex.7.

Заполните пропуски, выбрав правильный вариант из предложенных:

A:

a) stratum

b) strata

c) stratification

d) stratified

e) stratigraphy

1. One of the most distinctive features in sedimentary rocks is that they are ______.

2. The thinnest layer of a ______ rock form lamina.

3. A number of lamina may be united in a ______ or bed, which may vary in thickness.

4. The study of the relation of layers to each other is called ______.

5. The deposits made directly by the ice are characterized by an absence of ______.

6. Stratigraphy studies the relation of ______ to each other.

1–	3–	5–
2–	4–	6–

 

B:

a) origin

b) original

c) originally

d) originate

1. As a result of changes of level sedimentary rocks which were ______ deposited in the ocean now form parts of the continents.

2. In some places the soil is mainly of organic ______.

3. Most earthquakes ______ beneath the sea.

4. Some rocks change their ______ qualities under high tº and pressure.

5. There are many minerals which ______ deep in the earth and are unstable under surface conditions.

1–	3–	5–
2–	4–	6–

 

Ex.8.

Определите, какой частью речи является подчеркнутое слово.

1. Some rocks are formed from the remains of plants.

2. The origin of life on Earth remains one of the most interesting problems in modern science.

3. A glacier deposits its loads on land or in the sea.

4. Rock deposits may be stratified.

5. Metamorphism changes the original characteristics of rocks.

6. Temperature and pressure cause great changes in the chemical composition of rocks.

7. In some places the wind forms sand dunes.

8. Sand dunes may be of different forms.

9. Geological processes shape the lands.

10. This rock is of irregular shape.

 

Ex.9.

Выберите нужный по смыслу вариант из приведенных в скобках.

1. The real difference between the centre of Africa and the centre of America is that in the (former/formerly) water is water and in the (later/latter) water is ice.

2. In general, waves are of two types: swell waves and storm waves. Both are generated by the wind but the (letter/latter) more directly than the (farmer/former).

3. The earth warmed up and cooled off several times. In comparison to some (former/formal) eras of geologic history today we live in one of the “ice age”.

4. It was (formally/formerly) supposed that the entire interior of the Earth was liquid.

5. Molten magma contains large quantities of both oxygen and hydrogen. In cooling they combine to form water. The (later/latter) is an extremely active agent.

 

Ex.10.

Вставьте нужные предлоги.

1. All rocks are composed ___ minerals.

2. Minerals are ___ great importance ___ the geologists.

3. The oceanic crust is made up ___ dark rocks.

4. Any material which was formed ___ liquid rock is called igneous rock.

5. This area is now covered ___ sedimentary rock.

6. This layer of sedimentary rock lies ___ the igneous and metamorphic rocks of the earth’s crust.

7. The word “metamorphic” comes ___ two Greek words.

 

Ex.11.