Правой стороне тетради и переведите, обращая внимание на перевод
Инфинитива
1. We know all the rocks…
2. The geological investigations to be carried out…
3. The science of geology can explain…
4. Many questions remain completely unsolved…
5. To have any deposition…
a. … there must exist a source of sediments.
b. … the mode of occurrence of ore deposits.
c. … and there are many questions to be posed.
d. … include field prospecting and exploration.
e. … to be penetrated by cracks and fissures.
VI. Подчеркните в предложениях причастия. Переведите предложения на русский язык
1. The shore has a dual nature, changing with the swing of the tides, belonging now to the land, now to the sea.
2. These vibrations, called seismic waves, pass through the earth like waves through water.
3. The hardened lava formed the first rocks of the world.
4. Hydrogen is the lightest element known.
5. Sedimentary rocks are the altered sediments accumulated either on the ocean bottom or on land.
6. Being less dense than mantle, the molten crustal material rises towards the ocean floor.
7. In lakes the material brought down by the stream settles on the bottom.
VII. Прочитайте и устно переведите текст
The Earth's Crust
Most mineral resources are derived from the Earth's crust. The crust is composed of minerals that are crystalline solids with specific and rather simple composition. Minerals in the Earth's crust are concentrated into specific groups which are called rocks. Two distinctly different types of crust are recognized: oceanic and continental.
Since it is difficult to investigate the floor of the ocean, the composition of the oceanic crust is not known completely. Scientists say that it is relatively constant in composition. The oceanic floor consists largely of minerals rich in calcium, magnesium, iron and silicon, and it is formed by the cooling of lavas extruded on the sea floor to form a type of rock called basalt. It is subjected to the same forces of erosion and weathering.
The continental crust contains less iron and magnesium than the oceanic crust, but relatively more silicon, aluminium, sodium and potassium. The continental crust is more complicated and has a more variable thickness and a less well-defined structure. It contains extremely varied types of rocks.
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Выполните следующие упражнения к тексту:
I. Ответьте на следующие вопросы
1. What is the crust composed of?
2. How many types of the Earth 's crust are recognized?
3. What minerals does the oceanic crust consist of?
4. What do the scientists say about the composition of the oceanic
crust?
5. What crust has a more variable thickness and a less well-defined
structure?
II. Определите, какие предложения не соответствуют содержанию текста. Дайте правильный вариант
1. The crust is composed of crystalline solids with rather complex
composition.
2. The composition of the oceanic crust is not known completely.
3. The oceanic crust is variable in composition.
4. The oceanic crust contains extremely varied types of rocks.
5. The continental crust is less complicated than the oceanic crust.
6. The oceanic floor is formed by the melting of lavas.
7. The continental crust contains less iron and magnesium than the
oceanic crust.
8. It is not difficult to investigate the floor of the ocean.
III. Подберите из списков А и В близкие по значению слова
| A | B |
| investigate type complex different name | kind hard variable call floor |
| bottom contain structure difficult | consist of texture complicated explore |
IV. Найдите в тексте английские эквиваленты следующих сочетаний
Слов. Запишите их на правой стороне тетради
Кристаллические твердые вещества, довольно простой состав, особые группы, относительно постоянные по составу, состоять в основном из минералов, остывание лавы, подвергаться воздействию, те же самые силы, более сложная по составу кора, эрозия и выветривание, разная мощность (толщина), содержать меньше железа, хорошо определяемая структура
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V. Сопоставьте предложения на русском и английском языках.
Предложения на английском языке запишите на правой стороне
Тетради
1. Известны два различных типа коры: океаническая и континентальная.
2. Трудно исследовать океаническое дно.
3. Континентальная кора содержит меньше железа и магния, чем
океаническая кора.
4. Океаническое дно подвергается воздействию эрозии и выветривания.
5. Состав океанической коры полностью неизвестен.
a. The floor of the ocean is subjected to the forces of erosion and weathering.
b. Two distinctly different types of crust are recognized: oceanic and continental.
c. The composition of the oceanic crust is not known completely.
d. The continental crust contains less iron and magnesium than
the oceanic crust.
e. It is difficult to investigate the floor of the ocean.
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