1、本文选自中考英语阅读理解真题，包括重点词汇讲解和中文翻译。

2、Are there intelligent creatures on other planets? For years, scientists have said "no" or "we don"t know." But today this situation is changing. Seth shostak and Alexandra barnett are astronomers. They believe that intelligent life exists somewhere in the universe. They also think that we will contact these creatures soon.

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3、其他星球上有智慧生物吗？多年来，科学家们一直说“不”或“我们不知道”，但今天这种情况正在改变。塞斯肖斯塔克和亚历山德拉班纳特是天文学家。他们相信智慧生命存在于宇宙的某个地方。

4、他们也认为我们很快就会接触到这些生物。

5、【关键词】:智能：智能；天文学家：天文学家；存在：存在；宇宙：宇宙；接触：接触，接触；联系方式；众生：人；生物；

6、Why do shostak and barnett think that intelligent life exists on other planets? The first reason is time. Scientists believe that the universe is about 1 billion years old. "This is long enough for other planets to have intelligent life," shostak and barnett said.

7、为什么肖斯塔克和巴尼特认为其他星球上存在智慧生命？第一个原因是时间。科学家认为宇宙大约有100岁了.“这足以让其他星球拥有智慧生命，”肖斯塔克和巴纳特说。

8、The second reason is scale-the universe is huge. "Tools like Hubble have shown that there are at least one billion galaxies," shostak said. "And our galaxy, the Milky Way, has at least 1 billion stars. Some planets orbiting these stars may be similar to Earth. "

9、第二个原因是宇宙太大了。像哈勃望远镜这样的工具Shostak说，“我们已经证明了至少有一个星系。”我们的星系至少有一颗恒星。一些围绕这些恒星运行的行星可能与地球相似。"

10、【关键词】:巨大：巨大；望远镜：望远镜；最后：至少；银河：银河系；类似于：类似于；

11、In the past, it was difficult to find signs of intelligent life in the universe. But now, powerful telescopes allow scientists to find smaller planets in other solar systems-Mars or Earth-sized planets. These planets may have intelligent life.

12、在过去，很难在宇宙中找到智慧生命的迹象。但是现在，强大的望远镜允许科学家在其他太阳系中找到火星或地球大小的小行星。这些行星可能有智慧生命。

13、【关键词】:过去；寻找：寻找；签：签，签，

14、招牌；强大：强大；允许：允许；发现：发现；太阳系：太阳系；

15、Have creatures from space visited the earth? "Probably not," shostak said. "It"s still far away. However, intelligent creatures may contact us in other ways, such as radio signals.

16、有来自太空的生物访问过地球吗？“大概不会，”离这里很远的肖斯塔克说。然而，智能生物可能通过其他方式与我们联系，例如无线电信号。

17、In fact, they may be trying to communicate with us now, but we don"t have the right tools to receive their information. However, this situation is changing. By 2020, we can get in touch with other life forms in the universe and help each other. "

18、事实上，他们现在可能正试图与我们交流，但我们没有合适的工具来接收他们的信息。然而，这种情况正在改变。现在，我们可以与宇宙中的其他生命形式取得联系，互相帮助。"

19、【关键词】:信号：信号；事实上：事实上；与.交流：与.交流；形式：形式；

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