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阅读下面短文,在空白处填一个适当的词或填入括号中所给单词的正确形式。
On November 5, 2024, LignoSat, the world’s first wooden satellite, 1. ______(go) into space.
Kyoto University and the company Sumitomo Forestry developed it in Japan. Shaped like a little cube, the satellite is only about 2. ______ size of your hand. It will fly around the earth at a 3. ______(high) of about 400 kilometres.
The goal is to see 4. ______ wood can be used for future space missions(任务). LignoSat is made from a kind of special tree. The satellite 5. ______(spend) six months in space. The sensors(感应器) on it will record its 6. ______(perform) for scientists to check if it can deal with the hard environment in space. There, it can be 7. ______ cold as -100℃ and as hot as 100℃.
Wood is a good 8. ______(choose) for space missions because there is no water or air there to make it rot(腐烂) or catch fire.
Wooden satellites can help protect the environment because people can grow more wood. This makes it renewable.
What’s more, satellites made of wood don’t add to air pollution. When satellites stop 9. ______(work), they are usually sent back to the earth to burn up in the air. In this process, metal satellites can leave harmful particles(颗粒) behind. But wooden ones burn up 10. ______(clean) without causing pollution.
On November 5, 2024, LignoSat, the world’s first wooden satellite, 1. ______(go) into space.
Kyoto University and the company Sumitomo Forestry developed it in Japan. Shaped like a little cube, the satellite is only about 2. ______ size of your hand. It will fly around the earth at a 3. ______(high) of about 400 kilometres.
The goal is to see 4. ______ wood can be used for future space missions(任务). LignoSat is made from a kind of special tree. The satellite 5. ______(spend) six months in space. The sensors(感应器) on it will record its 6. ______(perform) for scientists to check if it can deal with the hard environment in space. There, it can be 7. ______ cold as -100℃ and as hot as 100℃.
Wood is a good 8. ______(choose) for space missions because there is no water or air there to make it rot(腐烂) or catch fire.
Wooden satellites can help protect the environment because people can grow more wood. This makes it renewable.
What’s more, satellites made of wood don’t add to air pollution. When satellites stop 9. ______(work), they are usually sent back to the earth to burn up in the air. In this process, metal satellites can leave harmful particles(颗粒) behind. But wooden ones burn up 10. ______(clean) without causing pollution.
答案
1. went 2. the 3. height 4. if/whether 5. will spend 6. performance 7. as 8. choice 9. working 10. cleanly
