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1、SPACE：THE FINAL FRONTIER“Are we alone? Whats out there？” 1 (look) up at the stars，people have always wanted to learn more about space，and scientists work hard 2 (find) answers. They make vehicles 3 (carry) brave people into space to find out the secrets of the universe. They also 4 (real) wish to di
2、scover other planets that are suitable enough 5 support life.Before the mid-20th century，most people felt 6 (travel) into space was an impossible dream. However，some scientists were 7 (determine) to help humans realise their dream to explore space. After many experiments，they succeeded 8 making rock
3、ets 9 could escape Earths gravity. 10 4 October 1957，the Sputnik 1 satellite 11 (launch) by the USSR and 12 (successful) orbited around Earth. Afterwards，the USSR focused 13 sending people into space，and on 12 April 1961，Yuri Gagarin became the first person in the world 14 (go) into space. Over eigh
4、t years later，on 20 July 1969，American astronaut Neil Armstrong stepped onto the moon，famously saying，“Thats one small step for a man，one giant leap for mankind.” Following this，many more goals were achieved. For example，Americas NASA space agency launched Voyager 1 on 5 September 1977 to study deep
5、 space，and it still transmits data today.Although scientists try to make sure nothing goes wrong，accidents can still happen. All the astronauts on the USSRs Soyuz 11 and Americas Challenger died during their missions.These disasters made everyone sad and 15 (disappoint)，but the desire to explore the
6、 universe never died. This is because people believe in the importance of 16 (carry) on space exploration despite the huge risks. An example of this ongoing work is the International Space Station. It orbits Earth and has astronauts from different countries on board， 17 (provide) a continuous human
7、presence in space.Chinas space programme started 18 (late) than those of Russia and the US，but it has made great progress in a short time. China became 19 third country in the world to 20 (independent) send humans into space in 2003，when Yang Liwei 21 (successful) orbited Earth in the Shenzhou 5 spa
8、cecraft. Then Shenzhou 6 and 7 completed a second manned orbit and the first Chinese spacewalk，followed by the vehicle Jade Rabbit being sent to the moon to study its surface. After that，China launched the Tiangong 2 space lab into space and Tianzhou 1 to dock with it. This signalled one step 22 (fa
9、r) in Chinas plan to establish a space station in the future. More 23 (recent)，China has sent Change 4 24 (explore) the surface of the far side of the moon to make measurements and observations.The future of space exploration remains bright. Europe，the US，and China all have plans to 25 (far) study a
10、nd explore planets like Mars and Jupiter. Despite the difficulties，scientists hope future discoveries will not only enable us 26 (understand) how the universe began，but also help us survive well into the future.Keys:1. Looking2. to find3. to carry4. really5. to6. travelling/traveling7. determined8. in9. that/which10. On11. was launched12. successfully13. on14. to go15. disappointed16. carrying17. providing18. later19. the20. independently21. successfully22. further23. recently24. to explore25. further26. to understand