Exercise II. Answer the following questions.

Date: 2015-10-07; view: 475.

Exercise I. For questions 1 - 6, choose the answer (A, B or C) which you think fits best according to the text.

1. It would be interesting to visit Mars because

A) it is humanity's mother planet.

B) it is similar to Earth.

C) it has annual seasons.

2. Space flight to Mars is risky because of

A) broken equipment.

B) "Great Galactic Ghoul."

C) vast distance.

3. The spacecraft that visited Mars about two decades ago

A) took pictures of its surface.

B) covered the planet with craters.

C) supported life on Mars.

4. Russian and American spacecraft that have been launched recently showed that

A) Mars is covered with water.

B) Mars has rocky surface.

C) has no channels.

5. "The Pathfinder" studied

A) chemical elements that have "finger prints" of their own.

B) the climate of Mars.

C) chemical composition of Mars's surface.

6. Carl Sagal is the scientist who

A) claimed that we were not alone in our galaxy.

B) showed the first images of Mars's surface.

C) brought advanced civilisation right to your living room.

1. What makes the "Red Planet" so appealing to future visitors?

2. Why is space flight a risky venture?

3. How many missions to the planet have gone kaput since the space age began? What might the reasons be?

4. What part did unmanned probes of solar system play in space research?

5. When was the first information about Mars obtained? What was the craft able to do?

6. Why did enthusiasm begin to wane? What data rekindled public interest in the planet Mars?

7. Which spacecraft and probes formed the vanguard of a flotilla of Mars-bound ships? Which countries participated in the project?

8. What was one of the most important goals of the mission?

9. How many metres of the surface were explored? What measurements were obtained?

10. What did the obtained images show?

11. The mission also filled another blank on the map of Mars — the origin of channels. What new hypothesis was put forward?

12. How was the chemical composition of the rock analysed?

13. What did the analysis confirm?

14. How was information about the interior obtained? In what way can it be helpful?

15. What does analysis of overall results suggest?

16. What crucial question about our neighboring world will information from other missions help answer?