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China will send the Shenzhou-20 spacecraft into space on Thursday. The launch time is 5:17 pm. Three astronauts are on board: Chen Dong, Chen Zhongrui, and Wang Jie. They will fly on Shenzhou-20 using a Long March 2F rocket from Jiuquan Satellite Launch Center.

The spacecraft will dock with China’s Tiangong Space Station. This docking will take about 6.5 hours. Tiangong is China’s own space station. It flies around Earth 400 kilometers above the ground. It has three main parts: Tianhe, Wentian, and Mengtian.

The Shenzhou-20 crew will replace the Shenzhou-19 team. The Shenzhou-19 team arrived in October 2024. They have stayed in space for 176 days. Both teams will work together for four days. Then the Shenzhou-19 astronauts will return to Earth.

During their six-month mission, the Shenzhou-20 team will do many tasks. They will do science experiments. They will install equipment to protect the station from space debris (太空垃圾). They will also collect tools outside the station. The astronauts will also give online science lectures to students on Earth.

1.1. Where will Shenzhou-20 be launched?

A In Beijing.

B In Shanghai.

C In Xichang.

D In Jiuquan.

解析：选D。D 细节理解题。根据第一段的“They will fly on Shenzhou-20 using a Long March 2F rocket from Jiuquan Satellite Launch Center.”可知，神舟二十号将从酒泉卫星发射中心发射。故选D。

2.2. What can we know about Tiangong from the passage?

A It’s easy to build.

B It’s far from the sun.

C It’s a large space station.

D It moves very slowly.

解析：选C。C 推理判断题。根据第二段提到的天宫空间站“has three main parts: Tianhe, Wentian, and Mengtian”，拥有三个主要部分，由此可推断出它是一个规模较大的空间站。故选C。

3.3. What does the underlined word “replace” mean?

A Come across.

B Lend a hand to.

C Take the place of.

D Work with.

解析：选C。C 词义猜测题。根据第三段划线单词后文的“Then the Shenzhou-19 astronauts will return to Earth.”可知，神舟十九号宇航员将返回地球，由此可推断神舟二十号乘组是来“取代”神舟十九号乘组的，“replace”意思是 “take the place of”（代替）。故选C。

4.4. What can we infer about the Shenzhou-20 team’s task?

A It’s very dangerous.

B It’s full of fun.

C It’s quite challenging.

D It’s short and simple.

解析：选C。C 推理判断题。根据最后一段内容可知，神舟二十号乘组的任务包括做科学实验、安装防护设备、收集工具以及进行在线科学讲座等，任务种类繁多且专业性强，由此可推断出他们的任务颇具挑战性。故选C。

5.5. What is the main purpose of this passage?

A To explain how rockets work.

B To introduce the Shenzhou-20 mission.

C To compare Tiangong with other space stations.

D To discuss China’s Space Day.

解析：选B。B 主旨大意题。全文围绕神舟二十号的发射、乘组、对接及任务展开。故选B。