The Chang’e 6 mission is unique in being mankind’s first mission to bring back samples from the far side of the moon. The success of the mission and its outcomes will doubtlessly contribute to a more comprehensive understanding of lunar evolution.

Because the period of the moon’s rotation (旋转) is the same as that of its round trip around the Earth, more or less the same side of the moon faces the Earth all the time, which is called a tidal lock. Although US astronauts landed on the moon in the 1960s, it was not until 2018 that China’s Chang’e 4, although unmanned, soft-landed on the far side of the moon. Later, in 2020, Chang’e 5 brought back lunar soil from the near side of the moon. Now, Chang’e 6 has surpassed those two earlier missions by bringing soil from the far side of the moon.

While the area where Chang’e 5 landed, namely Mons Rümker, was formed 2 billion years ago, the samples collected by Chang’e 6 come from the South Pole-Aitken basin that’s the largest, deepest, as well as the oldest crater (坑) basin not only on the moon but in the entire solar system. According to existing knowledge, collisions might have led to the creation of this crater on the moon’s surface, which means the lunar soil collected by Chang’e 6 could be 4 billion years old and reveal secrets of the solar system during that early period.

That’s around the time when the Earth had just come into being. In other words, soil samples from the far side of the moon may tell stories about not only the moon but also the Earth and the entire solar system.

That China is the first country to have sent a mission to collect samples from the far side of the moon shows its technological capabilities. More questions about the moon will surely be answered as China has more missions planned.

1.What’s the first paragraph mainly about?

A The Chang’e 6 mission’s limitations.

B The significance of the Chang’e 6 mission.

C The development of science and technology.

D Astronauts’ hardships in the Chang’e 6 mission.

解析：选B。B段落大意题。根据第一段中的“unique in being mankind’s first mission to...”“will doubtlessly contribute to...”可知，该段主要讲的是嫦娥六号在人类历史上首次实现月球背面采样返回，将帮助我们更好地认识这颗星球。即该任务完成的重大意义。故选B。

2.Which of the following first landed on the far side of the moon?

A Chang’e 3.

B Chang’e 4.

C Chang’e 5.

D Chang’e 6.

解析：选B。B细节理解题。根据第二段中的“China’s Chang’e 4, although unmanned, soft-landed on the far side of the moon”可知，嫦娥四号是人类第一个着陆月球背面的探测器，实现了人类首次月球背面软着陆。故选B。

3.The samples collected by Chang’e 6 come from _________.

A a wide and flat basin

B a secret basin of the moon

C the most time-honored basin

D a two billion years old basin

解析：选C。C细节理解题。根据第三段中的“the samples collected by Chang’e 6 come from the South Pole-Aitken basin that’s the largest, deepest, as well as the oldest crater basin not only on the moon but in the entire solar system”可知，嫦娥六号采集月球样品的南极-艾特肯盆地，被公认为月球上最大、最古老、最深的盆地。故选C。

4.What type of writing is this text?

A A research article.

B A play review.

C A news report.

D An advertisement.

解析：选C。C推理判断题。根据全文内容可知，文章主要讲了嫦娥六号月背采样任务圆满成功，完成人类历史上首次月背采样和返回。本文是一篇新闻报道。故选C。