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6.11 Answer the following questions

What is the cosmos? What is the Universe?

What galaxy do we live in?

What does the Solar System consist of?

Give all the data relating to the sun.

How are the planets arranged in the Solar System?

Distinguish between the asteroids and the comets.

How could the Solar System have originated according to the “catastrophic” theory?

How could the Solar System have originated according to the nebular theory?

6.12 Write down a summarizing sentence for each paragraph of the text “The Universe and the Solar System”. On the basis of the above task prepare an oral summary of the text

7 Lesson 7 The Earth

7.1 Words and word combinations to the text

sphere – сфера, шар

spheroid – сфероид

pole – полюс

layer – оболочка

atmosphere – атмосфера

hydrosphere – гидросфера

lithosphere – литосфера

liquid – жидкий

crust – земная кора

mantle – мантия

boundary – граница

granite – гранит

sedimentary rocks – осадочные породы

silicate rocks – силикатные породы

basalt – базальт

density – плотность

property - свойство

radioactivity – радиоактивность

lead – свинец

uranium – уран

to yield – давать

approximately – приблизительно

7.2 Find Russian equivalents to the following word combinations

to compare with

масса Земли

a tiny speck

различные свойства

the mass of earth

период времени

rigid shell

дно (ложа) океана

the ocean floor

газообразное состояние

the earth’s interior

сравнивать с …

different properties

твердая оболочка

length of time

gaseous state

liquid state

solid state

крошечная частица

внутренняя часть Земли

твёрдое состояние

жидкое состояние

7.3 Read and translate the text The Earth

Our planet on which we live, the earth seems to be a very large body. But compared with quite an ordinary star, like the sun the earth is only a tiny speck in the universe. The earth is not a true sphere but a spheroid flattened at the poles so that the axis on which it rotates is shorter by 27 miles than the equatorial diameter. The outer layers of the earth are the atmosphere, the hydrosphere, and the lithosphere. The atmosphere, the outermost layer, is the envelope of gases that surrounds the earth. The hydrosphere includes all the bodies of water on the earth in gaseous, liquid, and solid states. It makes up only 0.02 per cent of the mass of the earth.

The three major parts of the earth are the crust, the mantle, and the core. The outermost more or less rigid shell covering the earth constitutes the earth’s crust. It includes the rocks of the continents as well as the rocks beneath the ocean floor. The lower boundary of the crust is 20 to 25 miles beneath the surface of the continents and only about 4 miles beneath the ocean. The continents are made up of a rock type known as granite covered by a thin layer of sedimentary rocks, and underlain by basalt, while the floor of all ocean basins is mostly underlain by basalt with a thin layer of sedimentary rocks above.

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