训练2 体裁：说明文 主题：城市 难度：★★★★ 建议用时：6 min 正确率：/5
nature because one they take action
新素材·太空鼠产崽 "Space Mice" Become Mothers
When a mother mouse takes care of her babies, it comes as no surprise. But recently a mother mouse has caught our eye 1 she just came back from China's space station after staying there for two weeks. Scientists say she successfully had babies, and this is a big step for space life science.
Four test mice started 2 space trip on October 31, 2025. They lived in a special place in the space station. The four mice planned to stay in space for 5 to 7 days. However, they stayed there for 14 days. As a result, the mice were in danger(危险)—they didn't have enough food.
Luckily, the ground team saw this problem and 3 right away. The astronauts(宇航员) in the space station offered the mice water and their own food—soy milk. This food worked well. All the mice stayed healthy and managed to return to Earth safely on November 14.
On December 10, the mother mouse had babies in a 4 way on Earth. She had nine baby mice. Six of them lived and all of them grew well. A scientist from the Chinese Academy of Sciences said, "Our 5 look shows that the short space trip didn't have an effect on the mice's ability to have babies."
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训练2 【语篇解读】本文是一篇说明文。文章主要介绍了四只被送往中国空间站的实验小鼠的非凡经历，重点介绍了其中一只母鼠在返回地球后成功生育的情况，这一成果对空间生命科学研究具有重要意义。
1. because 【解析】根据前后句意可知表示因果关系，用 because(因为)连接。故填 because。
2. their 【解析】根据主语 four test mice 可知修饰名词 space trip 用形容词性物主代词 their 意为“它们的”。故填 their。
3. took action 【解析】根据固定搭配 take action 可知表示“采取行动”，符合语境，且是过去时。故填 took action。
4. natural 【解析】根据修饰名词 way 可知用 nature 的形容词形式 natural 意为“自然的”。故填 natural。
5. first 【解析】根据 Our 以及 look 可知表示“初步观察”，用 one 的序数词 first 意为“第一的；最初的”。故填 first。

【分析】本题为说明文类英语完形填空，解题时需先通读全文把握主旨（太空实验小鼠的经历及产崽成果），再结合每空的上下文逻辑、句子结构、固定搭配及词性变化逐一分析：第1空需体现前后因果关系；第2空修饰名词需用形容词性物主代词；第3空考查固定搭配的过去式；第4空修饰名词需用形容词；第5空需表达“初步的”含义，用序数词。
【解析】1. 前后句为因果关系，前句说明母鼠引起关注，后句说明原因是从空间站返回，故填连词because；2. 主语是four test mice，修饰名词短语space trip需用形容词性物主代词their；3. 固定搭配take action表示“采取行动”，结合全文过去时态，故填took action；4. 修饰名词way需用nature的形容词形式natural；5. 表示“初步观察”，需用one的序数词first，故填first。
【答案】1. because 2. their 3. took action 4. natural 5. first
【知识点】英语完形填空、词汇用法、词性转换
【点评】本题以太空生命科学新素材为背景，考查学生对上下文逻辑、基础词汇及语法知识的运用，题型常规，难度适中，能有效考查学生的英语综合运用能力。
【难度系数】0.5

训练3 体裁：说明文 主题：景点 难度：★★★★ 建议用时：6 min 正确率： /5
cloud quick work talk about be ready for
Ailao Mountains are beautiful but dangerous. They have been famous since the National Day holiday and people are 1 them online. What are Ailao Mountains like? Think about tall trees, heavy fog(雾) and scary sounds ...
Ailao Mountains sit in the centre of Yunnan. People lose their ways in them easily. 85% of the mountains are large forests. There is hardly(几乎没有) sunlight and phone signals in 2. The fog makes it hard to see things. And some special rocks can even make your compass(指南针) stop 3.
The weather there changes 4. It may rain or snow suddenly(突然). It's hard for people to stay warm or dry. The mountains are also home to many kinds of wildlife. All of them are hungry and they 5 a "free meal". It's better for us not to visit there, although it may feel magical.
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训练3 【语篇解读】本文是一篇说明文。文章主要介绍了哀牢山的美丽与危险。
1. talking about 【解析】根据空前“They have been famous since the National Day holiday”可知哀牢山在国庆节期间变得出名，人们正在网上讨论它们；根据空前“are”可知，此处应用现在分词构成现在进行时。故填 talking about。
2. clouds 【解析】根据下文“The fog makes it hard to see things.”可知山中的浓雾让人很难看清东西，云雾中几乎没有阳光和手机信号；此处应用名词的复数形式表泛指。故填 clouds。
3. working 【解析】根据上文“People lose their ways in them easily.”可知人们很容易迷失方向，特殊的岩石甚至会让指南针停止运行；stop doing sth 表示“停止正在做的事情”。故填 working。
4. quickly 【解析】根据下文“It may rain or snow suddenly.”可知哀牢山可能会突然下雨或下雪，天气变化快；修饰空前动词 changes，应用副词。故填 quickly。
5. are ready for 【解析】根据空前“All of them are hungry”可知所有野生动物都饿了，准备享用“大餐”；句子时态是一般现在时。故填 are ready for。

【分析】先通读全文把握介绍哀牢山美丽与危险的主旨，结合所给词汇，依据每个空的时态、词性、固定搭配及上下文语境，逐一分析确定答案。
【解析】1. 根据前文“since the National Day holiday”及空前“are”，此处用现在进行时，故填talk about的现在分词形式talking about；2. 由下文“The fog makes it hard to see things”可知，此处指云雾中几乎无阳光和信号，cloud用复数表泛指，故填clouds；3. 固定搭配stop doing sth表示“停止做某事”，此处指岩石让指南针停止运行，故填work的动名词形式working；4. 修饰动词changes需用副词，结合下文“suddenly”可知天气变化快，故填quick的副词形式quickly；5. 由前文“All of them are hungry”可知，野生动物准备享用“大餐”，时态为一般现在时，主语是复数，故填are ready for。
【答案】talking about；clouds；working；quickly；are ready for
【知识点】动词时态运用、词性转换、固定搭配
【点评】本题为说明文语境下的选词填空，考查学生对词汇在具体语境中的运用能力，需结合上下文逻辑与语法规则解题，是常见的英语基础题型。
【难度系数】0.4