语法填空 旅行者 1 号在星际空间探测到“嗡嗡声”
背景知识
“旅行者 1 号”探测器于 1977 年 9 月发射，于 1979 年飞过木星，然后在 1980 年底飞越土星。
完成飞越木、土星任务后，旅行者 1 号靠着身上续航力超持久的放射性同位素热电机（RTG）提供
的动力，飞向太阳系边缘，并于 2012 年 8 月飞出了太阳圈，成为首个进入星际空间的人造探测器。
阅读下面短文，在空白处填入 1 个适当的单词或括号内单词的正确形式。
Scientists say NASA's most distant exploring spacecraft has recorded what they describe as
‘humming' beyond our solar system.
A new study suggests the continuous hum, detected by the Voyager 1
spacecraft,___1___(cause) by waves existing in interstellar space. Voyager 1 left our solar system
eight years ago, crossing the border ___2___ divides our solar system from interstellar
space. "Interstellar" means "between stars."
Researchers say instruments on Voyager 1 identified the waves as vibrations( 振 动 ) in small
amounts of gas ___3___(find) in the near-emptiness of interstellar space. The vibrations are also
known as plasma( 等 离 子 ) waves. The spacecraft detected the waves over several years
at ___4___(difference) radio frequencies.
Results from Voyager 1's findings were ___5___(recent) published in a study___6___(appear) in
Nature Astronomy.
___7___(astronomer) believe the space that Voyager 1 is passing through -- known as the
interstellar medium -- is filled with different kinds of waves, both big ___8___ small. Such waves can
provide information about the density(密度) of the interstellar medium.
The new research was led by Stella Ocker, a doctoral student at New York's Cornell University and a
member of NASA's Voyager 1 team. She was able to make the___9___ (discover) by examining data
slowly sent back by Voyager 1 ___10___ about 23 billion kilometers away.
最新发表的一项研究表明，旅行者 1 号在星际空间探测到一种神秘、微弱且持续的“嗡嗡声”。
杨开云命题
1.is caused
2.that/which
3.found
4.different
5.recently
6.appearing
7.Astronomers
8.and
9.discovery
10.from
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