高考英语模拟试题阅读理解精选编讲第048篇——蜂贝背单词app

Oumuamua, an object falling through space that was discovered on October 19th, has already made history. The speed at which it is moving relative to the sun means that it cannot be native to the solar system. Its official name is thus 1I/2017 U1, with the “ I”standing for “interstelar(星际)—the first time this name has ever been used.

That is exciting Some scientists, though, entertain an even more exciting possibility what if Oumuamua is not an asteroid(小行星), as most think, but an alien(外星的) spacecraft? Asteroids come in all sorts of shapes and sizes, but Oumuamua seems particularly different. As best as astronomers can tell, it is cigarlike, being roughly 180 meters long bu only about 30 meters wide. That makes it longer than anything known of in the solar system. Such a shape would be a sensible choice for spaceship, since it would minimize the scouring(冲刷)effect of interstelar dust.

With that in mind the Breakthrough Listen project, an organization aimed at hunting for alien life, plans to turn the world’s biggest radio telescope, the Green Bank instrument in Virginia, towards Oumuamua to see if it can hear anything interesting Oumuamua is currently about twice as far from Earth as Earth is from the sun. At that range, the telescope should be sensitive enough to pick up a transmitter about as powerful as a mobile phone after just a few seconds-worth of observations.

Will it find anything? Almost certainly not. Oumuamua has the same reddish color as many asteroids, so probably has a similar composition. And if it really is a spaceship, it is strange that signs of its artificial origin have not been seen already. It could , in theory, be a derelict(遗弃星球). But in that case the telescope is unlikely to hear anything. By far the most likely option is that it is exactly what it seems to be: a huge space rock, one that has come to the solar system from the vast space between the stars.

Oumuamua，一个于10月19日被发现的从太空坠落的物体，已经创造了历史。它相对于太阳的运动速度意味着它不可能是太阳系的固有物质。因此，其正式名称为1I/2017 U1，“I”代表“interselar”(星际)—这是第一次使用这个名字。

这是令人兴奋的。然而，一些科学家认为，如果Oumuamua不是小行星，会发生什么呢(小行星), 就像大多数人认为的那样，但一个外星人(外星的) 简单搜索小行星有各种各样的形状和大小，但Oumuamua似乎特别不同。据天文学家所知，它长约180米，宽约30米。这使得它比太阳系中已知的任何东西都要长。这样的形状对于宇宙飞船来说是一个明智的选择，因为它可以最大限度地减少冲刷(冲刷)层间灰尘的影响。

考虑到这一点，旨在寻找外星生命的组织“突破倾听”计划将世界上最大的射电望远镜——弗吉尼亚州的绿岸仪器——转向乌穆阿穆阿，看看它是否能听到任何有趣的声音。乌穆阿穆阿目前距离地球的距离是地球距离太阳的两倍。在这个范围内，望远镜应该足够灵敏，只需几秒钟的观测就可以接收到与手机一样强大的发射器。

它能找到什么吗？几乎可以肯定不是。Oumuamua和许多小行星具有相同的红色，因此可能具有相似的成分。如果它真的是一艘宇宙飞船，那么奇怪的是，它的人造起源迹象还没有被发现。理论上，它可能是一个被遗弃的(遗弃星球). 但在这种情况下，望远镜不太可能听到任何声音。到目前为止，最有可能的选择是，它正是它看起来的样子：一块巨大的太空岩石，一块从恒星之间的广阔空间来到太阳系的岩石。

句子成分分析：

The speed (at which it is moving relative to the sun) means | that it cannot be native to the solar system.

句子语法结构详解：

(cannot = can not)

* at 开头为定语从句。
* moving 为谓语，采用现在进行时。
* means 为谓语，采用一般现在时。动词采用第三人称单数形式。
* that 为连词，引导宾语从句。
* be 为系动词作谓语。
* native 为形容词作表语。
* can 为情态动词。is 为助动词。the 为定冠词。

句子相关词汇解释：

Phrase:

Vocabulary:

句子成分分析：

That makes it longer [than anything known of [in the solar system]].

句子语法结构详解：

(known 为 know 的过去分词。longer 为 long 的比较级形式)

* makes 为谓语，采用一般现在时。动词采用第三人称单数形式。
* longer 为形容词作宾语补足语(即构成复合宾语)。
* known 为过去分词，作后置定语。
* that 为指示代词。anything 为不定代词。the 为定冠词。

句子相关词汇解释：

Phrase:

Vocabulary:

句子成分分析：

[At that range],the telescope should be sensitive enough to pick up a transmitter (about as powerful as a mobile phone) [after just a few seconds-worth (of observations)].

句子语法结构详解：

* be 为系动词作谓语。
* sensitive 为形容词作表语。
* to pick 为不定式，作状语。
* about as powerful as a mobile phone 为后置定语。
* should 为情态动词。the 为定冠词。

句子相关词汇解释：

Phrase:

Vocabulary:

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