任务一 完形填空
阅读下面短文，掌握其大意，然后从各题所给的四个选项中选出一个最佳答案。
Human beings have always been curious about the sky. For thousands of years, we looked up at the stars and
what lay beyond the night sky. Today, that lasting curiosity has
us to explore space in ways our ancestors could never have imagined.
The great journey of space travel began in 1957 when the Soviet Union
Sputnik 1. This small metal ball circled the earth and sent back radio signals from outer space. Four years later, Yuri Gagarin became the first human to
into space. His flight lasted just 108 minutes, but it completely changed our
of human ability and outer space.
The most famous space mission in history was the Apollo 11 moon landing in 1969. When Neil Armstrong stepped onto the lunar surface, he
words that would be remembered across generations. This great achievement proved that humans could not only reach space but also
on a foreign world.
Since then, space exploration has kept moving forward. The International Space Station has been continuously occupied since 2000. It acts as a high-tech laboratory where
from different countries work together. They carry out experiments that cannot be done on earth due to gravity limitations.
In recent years, private companies have
the space industry and brought new changes. SpaceX has developed reusable rockets that can return and land safely on earth after launch. This technology has greatly cut down the
of space travel. NASA is now making plans to send humans back to the moon and finally to Mars.
Space exploration costs a huge amount of money and comes with great risks. So why do we keep moving forward? The answer is that space holds the
to our future development. By studying other planets, we deepen our knowledge of the earth. By breaking technological limits, we create new inventions that greatly
our daily life on earth.
Looking ahead, the future of space exploration is full of hope. Scientists are researching how humans can finish the long journey to Mars and successfully
on the Red Planet. They are designing advanced spacecraft and testing new ways to keep astronauts
and physically healthy during long space tasks.
Space exploration reminds us that we are all part of a world far larger than
. It connects different nations and encourages young people to pursue big dreams.
(
) 1. A. knew B. asked C. learnt D. wondered
(
) 2. A. led B. forced C. invited D. allowed
(
) 3. A. discovered B. launched C. invented D. produced
(
) 4. A. walk B. jump C. travel D. drive
(
) 5. A. understanding B. doubt C. wish D. choice
(
) 6. A. recorded B. heard C. wrote D. spoke
(
) 7. A. land B. work C. hide D. wait
(
) 8. A. doctors B. tourists C. scientists D. pilots
(
) 9. A. entered B. left C. protected D. ruled
(
)10. A. time B. distance C. cost D. risk
(
)11. A. gate B. key C. path D. view
(
)12. A. disturb B. benefit C. replace D. balance
(
)13. A. relax B. research C. settle D. compete
(
)14. A. active B. confident C. calm D. safe
(
)15. A. itself B. themselves C. ourselves D. yourselves
