A new study says that Earth has a second moon now. What’s going on? Let’s take a look.

    This mini-moon is a small asteroid (小行星). It is about 10 meters long. It will travel around Earth to late November (starting from late September). Earth’s gravity pulls it. Mini-moons are rare. But scientists saw them in 1981 and 2022.

    The mini-moon is called 2024 PT5. You cannot see it without a telescope (望远镜). Why? Because it is very small. After some time, the mini-moon will go back into space. It will not come back until the year 2055.

    If you want to know more about the mini-moon, click HERE.

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1.1. How long will the mini-moon travel around Earth?

A For about a few hours.

B For about two months.

C For about one year.

D For about a week.

解析：选B。细节理解题。根据第二段的“It will travel around Earth to late November (starting from late September)”可知，从9月底到11月底（大约两个月），它将短暂地环绕地球。故选B。

2.2.Why can’t we see the mini-moon without a telescope?

A Because it is on the other side.

B Because it is moving too fast.

C Because it is very small.

D Because it is black.

解析：选C。细节理解题。根据第三段的“You cannot see it without a telescope (望远镜). Why? Because it is very small.”可知，由于这颗卫星非常小，所以不使用专业设备是无法看见的。故选C。

3.3. When will the mini-moon return?

A It will never return.

B In the year 2055.

C In the year 2035.

D Next month.

解析：选B。细节理解题。根据倒数第二段的“It will not come back until the year 2055.”可知，迷你月球在完成这次短暂的访问后，直到2055年才会回来。故选B。

4.4. What can we infer (推测) about 2024 PT5?

A It’s common and easy to notice.

B It’s the same as the regular moon.

C It’s a good sign for Earth.

D It’s rare and difficult to notice.

解析：选D。推理判断题。根据文章内容可知，迷你月亮是罕见的，并且由于它们非常小，很难被观测到，因此我们可以推断出迷你月亮是罕见且难以观察的。故选D。

5.5. Where can we read the passage?

A On the Internet.

B In a magazine.

C In a dictionary.

D On a stamp.

解析：选A。推理判断题。根据最后一段的“If you want to know more about the mini-moon, click HERE.”如果您想了解更多关于“迷你月亮”的信息，请单击此处。由此可知，本文来自网络。故选A。