Exercise 2. Complete the sentences using the verbs: competed, enable, developed, explored, orbited, was based, launched, receive, are transported, benefit 1. On that day, the Union of Soviet Socialist Republics Sputnik 1, the first artificial satellite to circle the earth.

2. But both nations began to realize that they could from working together.

3. As a result, the Soviet Union and the United States with one another in developing their space programmers.

4. Weather forecasts warning of storms with pictures taken by weather satellites.

5. Signals from navigation satellites ship navigations and search and rescue forces to determine their positions with great accuracy.

6. The space age a huge industry called the aerospace industry to design and build space equipment.

7. For about two hours Armstrong and Aldrin near the module and set up experiments.

8. Today, American astronauts into space by the Space Shuttle.

9. The first manned space flight was made on April 12, 1961, when a Soviet cosmonaut, Yuri Gagarin, the earth in a spaceship.

10. Tsiolkovsky’s idea of spaceship on the use of liquid fuels.

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