一、用括号中所给单词的适当形式填空
1. Many ancient cultures believed that these points of light were from (god) or other (mystery) worlds.
2. There may be 100 (million) to 1 (billion) of these objects in our galaxy.
3. What happens when an object (throw) out in space?
4. After several lessons, I understand the problem (complete).
5. If they can (cooperate) with each other, everything should run smoothly.

1. gods, mysterious 2. million, billion
3. is thrown 4. completely 5. cooperate

【分析】
本题为英语用所给单词适当形式填空题型，需结合语境及语法规则（名词数、词性转换、时态语态、情态动词用法等）变形：1题需考虑名词复数及形容词修饰名词；2题需注意数词后million、billion的形式；3题需判断被动语态；4题需用副词修饰动词；5题需遵循情态动词后接动词原形的规则。
【解析】
1. 第一空：god是可数名词，此处指“众神”，需用复数形式gods；第二空修饰名词worlds，需用形容词，mystery的形容词形式为mysterious，故填gods, mysterious。
2. 当million、billion前有具体数词修饰时，用单数形式，故填million, billion。
3. 主语an object是动作throw的承受者，描述客观情况，用一般现在时被动语态（am/is/are+过去分词），故填is thrown。
4. 此处修饰动词understand，需用副词，complete的副词形式为completely，故填completely。
5. 情态动词can后接动词原形，故填cooperate。
【答案】
1. gods, mysterious 2. million, billion 3. is thrown 4. completely 5. cooperate
【知识点】
名词的适当形式、形容词与副词转换、被动语态
【点评】
本题为英语基础词形变换题，考察核心语法点均为初中英语基础内容，注重对词性、语态、数的基本规则的应用，是巩固英语基础的典型题型。
【难度系数】
0.8

二、根据句意,在空白处填入一个适当的单词
1 March 23rd,
Shenzhou-13 astronauts live-streamed the second lesson of “Tiangong Class”. What fun experiments did they do this time?
Ice Ball Experiment
In the class, Wang Yaping made a “water” ball with some solution(溶液). Then, she used a stick covered with crystal nuclei(晶核) to touch the ball and it quickly became a white ball of “ice”. It turned out to be a crystallization effect(结晶效应) caused 2 the micro-gravity(微重力) environment in space.
Water Bridge Experiment
It's hard to build a “bridge” with water on Earth. But it's quite easy in space! Wang made two water balls 3 two plates, pulled them together and then pulled them apart. The water 4 them didn't break and became a “bridge”! As the surface tension(表面张力) of water is not changed by gravity, it is so strong that the “bridge” doesn't break.
Water-oil Separation Experiment
If we mix oil and water on Earth, they will quickly separate(分离) because of different densities(密度). However, 5 no gravity in space, they will mix together.
How can we separate them, then? Ye Guangfu rotated(旋转) the bottle to create centrifugal force(离心力). With this man-made gravity, the water and oil were successfully separated.

1. On 2. by 3. on 4. between 5. with

【分析】
本题考查介词在不同语境中的运用，需结合句意、语法规则判断每个空白处的介词：1. 具体日期前用介词on；2. 被动语态中引出动作执行者用介词by；3. 表示“在……上面”的方位用介词on；4. 两者之间用介词between；5. 表示“带有、具有”的伴随含义用介词with。
【解析】
1. 空格后是具体日期March 23rd，具体某一天前需用介词on，故填On。
2. 此处为被动语态，crystallization effect（结晶效应）是动作的承受者，微重力环境是动作的执行者，被动语态中引出动作执行者用介词by，故填by。
3. 句意是“在两个盘子上的水球”，表示方位“在……上面”用介词on，故填on。
4. 前面提到两个水球，此处指两者之间的水，“在两者之间”用介词between，故填between。
5. 句意是“在太空没有重力的情况下”，用介词with表示“带有、具有”的伴随含义，故填with。
【答案】
1. On 2. by 3. on 4. between 5. with
【知识点】
介词用法、被动语态、方位介词
【点评】
本题围绕介词的不同用法设题，涵盖具体日期介词、被动语态介词、方位介词等基础知识点，需结合语境和语法规则判断，属于基础题型，学生只要掌握核心介词用法即可解答。
【难度系数】
0.6

三、阅读理解
Young scientist Li Yuehua works at Zhijiang Lab in Hangzhou, Zhejiang Province. There is something special about the lab—as Li enters it, she feels
out of this world. It brings her to one of Earth's closest neighbours: Mars.
The lab simulates（模拟） the environment, such as the ground and light, on the red planet. In the lab, Li and her team develop and test AI technology to make future Mars rovers smarter.
Zhurong, China's first Mars rover, got to Mars in 2021. As Zhurong moves on Mars, it sends information back to Earth. The ground team checks the information before it can move on. The process can take up to 40 minutes.
“Today’s rovers are like babies. They can perceive what’s around them but they’re not able to understand them. Scientists on Earth must tell them how to communicate with the environment,” said Li. “We hope our AI technology will help Mars rovers learn about the environment and decide where to go on their own.”
Li’s team needed a better place to do that. Is there anywhere similar to Mars on Earth? The answer was found in the deep desert of Dunhuang, Gansu Province. The team went there in summer and soon started to work. However, it was so hot that several machines stopped working and some team members got sick. Although it was really hard, they didn’t give up.
Finally, the team developed a better technology.
“An important part of science is facing failure,” Li said. “It is like climbing. You face difficulties and try to solve them time after time.”
（）1. Zhijiang Lab is special because of its .
A. location B. scientists
C. neighbours D. environment
（）2. What can we learn about Zhurong?
A. It can move fast on Mars.
B. It got to Mars four years ago.
C. Scientists are trying to make it more independent.
D. It decides where to go by checking the environment.
（）3. The underlined word “perceive” in Paragraph 4 means “”.
A. discover B. control
C. lead D. protect
（）4. What happened when Li’s team arrived in Gansu?
A. They lost their way in the desert.
B. The weather made it hard to live and work.
C. There wasn’t enough medicine for them.
D. They had no way to improve the technology.

1－4. DCAB

【分析】
本题是一篇关于火星车研发的英语阅读理解题，包含细节理解、词义猜测类题目。解题思路为：先通读全文把握主旨，再针对每道题的题干关键词定位原文对应段落，结合上下文语境逐一分析选项，排除错误选项得出答案。
【解析】
1. 细节理解题：根据第一段“The lab simulates（模拟） the environment, such as the ground and light, on the red planet.”可知，之江实验室的特殊之处在于模拟火星环境，对应选项D。A（位置）、B（科学家）、C（邻居）均不符合原文，故选D。
2. 细节理解题：A选项文中未提及祝融号移动速度；B选项原文仅说明祝融号2021年抵达火星，未提及“四年前”的表述；C选项根据第四段“We hope our AI technology will help Mars rovers learn about the environment and decide where to go on their own.”可知，科学家正致力于让祝融号更独立，符合原文；D选项原文指出当前祝融号需地面团队决定路线，并非自主判断，故选C。
3. 词义猜测题：第四段“Today’s rovers are like babies. They can perceive what’s around them but they’re not able to understand them.”中，转折词“but”表明前后语义相反，“understand”意为“理解”，故“perceive”应表示“感知、发现”，对应选项A。B（控制）、C（引导）、D（保护）均不符合语境，故选A。
4. 细节理解题：根据第五段“it was so hot that several machines stopped working and some team members got sick. Although it was really hard”可知，敦煌的炎热天气导致机器故障、成员生病，工作和生活困难，对应选项B。A（迷路）、C（缺药）、D（无改进方法）均未提及，故选B。
【答案】
1－4. DCAB
【知识点】
阅读理解、细节理解、词义猜测
【点评】
本题为英语阅读理解常规题型，涵盖细节查找、词义猜测，需学生精准定位原文信息并结合语境分析，难度适中。
【难度系数】
0.6