Put an appropriate word in each gap to complete the passage
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**Nội dung văn bản:**
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IX. Put an appropriate word in each gap to complete the passage.
SPACE EXPLORATION
Space exploration is sending people or machines into ________ to visit other planets and objects in space. Mankind has dreamed ________ visiting the stars for hundreds of years, but it wasn’t until 1969 that the first person walked on the Moon.
Since the first person walked on the Moon, hundreds of satellites have been launched into orbit around the ________, and hundreds of people have been into space on lots of different types of spacecraft. We have also sent machines to investigate objects that are further ________ in the Solar System. Voyager I and Voyager II, launched in 1977, have almost reached the edge of the Solar System and will soon be exploring deep space. They have travelled further from Earth than any other ________ made by man. They visited Jupiter, Saturn, Uranus, Neptune and Pluto on their journey through the Solar System.
Apart from the Moon, the most popular place to send unmanned space expeditions is to ________. Since the year 2000, there have been 10 unmanned expeditions to Mars. Some scientists think that creatures may have lived on Mars millions of years ago, ________ Mars was warmer and had more air – NASA sent the rover Curiosity to Mars in 2012 to look for evidence of ________. They haven’t found it yet, but they are going to keep on looking!
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**Nội dung văn bản:**
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IX. Put an appropriate word in each gap to complete the passage.
SPACE EXPLORATION
Space exploration is sending people or machines into ________ to visit other planets and objects in space. Mankind has dreamed ________ visiting the stars for hundreds of years, but it wasn’t until 1969 that the first person walked on the Moon.
Since the first person walked on the Moon, hundreds of satellites have been launched into orbit around the ________, and hundreds of people have been into space on lots of different types of spacecraft. We have also sent machines to investigate objects that are further ________ in the Solar System. Voyager I and Voyager II, launched in 1977, have almost reached the edge of the Solar System and will soon be exploring deep space. They have travelled further from Earth than any other ________ made by man. They visited Jupiter, Saturn, Uranus, Neptune and Pluto on their journey through the Solar System.
Apart from the Moon, the most popular place to send unmanned space expeditions is to ________. Since the year 2000, there have been 10 unmanned expeditions to Mars. Some scientists think that creatures may have lived on Mars millions of years ago, ________ Mars was warmer and had more air – NASA sent the rover Curiosity to Mars in 2012 to look for evidence of ________. They haven’t found it yet, but they are going to keep on looking!
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