Geography. Козлова Е.П. - 30 стр.

     stars called galaxies.
2.   Yes, there may be millions of star systems like our own in the universe.
3.   The approximate age of our Solar System as determined by the radioactive
     method is about 4,5-5 thousand million years.
4.   The planets rotate around their axis and revolve around the sun.
5.   No, Neptune isn’t the farthest planet to the sun. It’s Pluto.
6.   According to the “catastrophic” theory the planets were formed of material torn
     away from the sun by the action of another star.
7.   Our Solar System is believed to have originated from an immense cloud of gas
     and dust.
8.   Stars differ in surface temperature that’s why they are of different colour: white,
     blue, yellow and even red.

6.8 Translate into English

1. Галактики различаются по форме и структуре. Млечный Путь – это
   спиральная галактика.
2. Солнечная система – это крошечная частица вселенной. Она состоит из
   солнца, планет, спутников, космической пыли.
3. Структура солнца газообразная. Преобладающий газ – водород.
4. Солнечная система включает 31 спутник планет (не считая искусственных
   спутников Земли).
5. Астероиды – это малые планеты, размером от 1 мили до 300 миль.
6. Небулярная теория       предполагает образование небесных тел путем
   концентрации космического вещества.

6.9 Read and translate the dialogue. Reproduce it

A.: Did the sun and the planets form at the same time?
B.: You see, there exist several concepts of the origin of the solar system. Some of
them suggest that the sun and the planets originated at the same time from a
tremendous cloud of gas, mostly hydrogen and cosmic dust.
A.: And what do other hypotheses suggest?
B.: Other hypotheses suggest that the planets are younger than the sun, that first the
center of the cloud condensed and became a star – the sun, and then various densities
gave birth to the planets.
A.: I see.
B.: But it must be said that there is still no generally accepted theory to explain how
and when the sun and the planets formed.

6.10 Using the given chart , answer the following questions

1. Which planets have a longer day than year?
2. Which planet has the most moons?
                                                                                      31