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四、方框选词。
break apart,reach,create,leave,catch,each other,test,direct,explore,carry
亮点原创 After nearly 70 years of space ____,the Earth is now surrounded by space junk. An accident made the clean - up more difficult to start.
According to the European Space Agency,scientists plan on ____ their “junk truck”,ClearSpace - 1,in 2026. It's a spacecraft with four arms that can catch debris(碎片)and bring it back to the Earth. Scientists have chosen to bring back VESPA,a rocket part.
However,VESPA was later hit by another piece of space junk,____ new pieces. The ESA is now revising(修改)its clean - up plan.
Most satellites today are sent into the Earth's low orbit,which ____ up to around 2,000 kilometres above the Earth. There spacecraft are most likely to crash into ____. There may be as many as 170 million pieces of space junk in orbit,according to the ESA. Big or small,any of the pieces can damage(摧毁)a spacecraft. For example,if an object as large as 10 centimetres crashes into a satellite,the satellite ____.
In terms of the clean - up,scientists have some ideas. One popular plan is to send a spacecraft ____ harpoons(鱼叉)and magnets. The craft would shoot the harpoon to stick into the debris before “throwing” it back to the Earth. Magnets could move the debris,changing its ____. The debris would burn after entering the Earth's atmosphere(大气层) so there wouldn't be much ____ when it reaches the Earth.
Scientists are also considering shooting lasers(激光)from spacecraft to heat up the debris' surface,creating a small push that would change the debris' orbit. This change would allow the debris ____ by the Earth's gravity.
break apart,reach,create,leave,catch,each other,test,direct,explore,carry
亮点原创 After nearly 70 years of space ____,the Earth is now surrounded by space junk. An accident made the clean - up more difficult to start.
According to the European Space Agency,scientists plan on ____ their “junk truck”,ClearSpace - 1,in 2026. It's a spacecraft with four arms that can catch debris(碎片)and bring it back to the Earth. Scientists have chosen to bring back VESPA,a rocket part.
However,VESPA was later hit by another piece of space junk,____ new pieces. The ESA is now revising(修改)its clean - up plan.
Most satellites today are sent into the Earth's low orbit,which ____ up to around 2,000 kilometres above the Earth. There spacecraft are most likely to crash into ____. There may be as many as 170 million pieces of space junk in orbit,according to the ESA. Big or small,any of the pieces can damage(摧毁)a spacecraft. For example,if an object as large as 10 centimetres crashes into a satellite,the satellite ____.
In terms of the clean - up,scientists have some ideas. One popular plan is to send a spacecraft ____ harpoons(鱼叉)and magnets. The craft would shoot the harpoon to stick into the debris before “throwing” it back to the Earth. Magnets could move the debris,changing its ____. The debris would burn after entering the Earth's atmosphere(大气层) so there wouldn't be much ____ when it reaches the Earth.
Scientists are also considering shooting lasers(激光)from spacecraft to heat up the debris' surface,creating a small push that would change the debris' orbit. This change would allow the debris ____ by the Earth's gravity.
答案:
exploration@@testing@@creating@@reaches@@each other@@will break apart@@carrying@@direction@@left@@to be caught
一、单项选择。
答案:
中考新题型特训
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