三、阅读七选五
阅读下面短文，从短文后的选项中选出可以填入空白处的最佳选项。选项中有两项为多余选项。
体裁：说明文 主题：环境保护 难度：★★★★★ 建议用时：8 min 正确率：/5
Have you ever stopped to look closely at a moss growing on a stone or a giant redwood reaching for the sky? Our planet is full of amazing living things, from the fastest cheetah to the tiniest ant. But these plants and animals don't live alone. They are all connected in a web of life called an ecosystem.
Every living thing plays a role in this network. For example, bees and butterflies are very important for pollination. They carry pollen from flower to flower. 1 Without this action, many plants couldn't make fruits or seeds. Bees also communicate with each other to find food and then store sweet honey in their honeycomb.
2 They help to break down dead plants and animals, cleaning the forest and making the soil rich. This process is like magic—it removes decaying matter, and at the same time, creates nutrient-rich food for living plants. This amazing cycle shows how everything in nature is connected—even death gives life to new growth.
Sadly, human activities sometimes break these connections. When we cut down too many trees, like bamboo or ginkgo, animals lose their homes. Forests that used to be home to many frogs and butterflies become quiet. 3 For this reason, it is our duty to protect their homes and understand the importance of every life.
So, what can we do? We can start small. We can protect the environment by planting trees or even growing flowers like roses in our gardens. 4 During the walk, we can imagine the complex connections between all the living things we see.
5 When we understand that we are also a part of this ecosystem, we can learn to get on well with nature. Let's promise to be good friends to our planet and all its wonderful living things.
A. This loss shows us the harm of an unhealthy ecosystem.
B. We can also take a walk in nature to learn more about it.
C. Actually, even the smallest insect can help the ecosystem.
D. Other small living things, like murooms, also play a part.
E. Protecting nature means protecting ourselves in the long run.
F. In fact, over 75 percent of flowering plants need help with pollination.
G. Understanding these connections helps us protect nature more effectively.
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三、【语篇解读】本文是一篇说明文。文章主要介绍了生态系统中生物相互联系，发挥作用，指出人类活动破坏生态系统的危害，呼吁从小处着手保护自然。
1. F 根据上文“For example, bees and butterflies are very important for pollination.”和下文“Without this action, many plants couldn't make fruits or seeds.”可知此处应补充说明植物对传粉的需求；F项“事实上，超过 75％的开花植物需要传粉帮助。”强调传粉的重要性，承上启下。故选 F。
2. D 根据上文“Every living thing plays a role in this network. For example, bees and butterflies are very important for pollination.”和下文“They help to break down dead plants and animals, cleaning the forest and making the soil rich.”可知此处应举例介绍另一生物的作用；D项“其他小型生物，比如蘑菇，也发挥着作用。”既承接上文举例蜜蜂和蝴蝶的作用，又启示下文介绍蘑菇的作用。故选 D。
3. A 根据上文“When we cut down too many trees ... Forests that used to be home to many frogs and butterflies become quiet.”可知此处应介绍生态系统被破坏的危害；A项“这种损失向我们展示了不健康生态系统的危害。”总结上文砍伐树木的危害。故选 A。
4. B 根据上文“So, what can we do? ... We can protect the environment by planting trees or even growing flowers like roses in our gardens.”可知此处应介绍其他保护自然的方式；B项“我们也可以在大自然中散步，更多地了解它。”补充保护自然的方式，与下文“During the walk”呼应。故选 B。
5. E 根据下文“When we understand that we are also a part of this ecosystem, we can learn to get on well with nature.”可知此处应介绍保护自然的意义；E项“从长远来看，保护自然意味着保护我们自己。”总结保护自然的重要性。故选 E。

【分析】
解答本题需结合上下文的逻辑关系（如举例、过渡、总结、话题衔接等）选择合适句子：1空需匹配传粉相关内容，承上启下；2空需承接上文生物举例，引出下文其他生物作用；3空需总结生态被破坏的危害；4空需补充保护自然的方式，与下文“walk”呼应；5空需总结保护自然的意义，衔接下文人类与生态的关系。
【解析】
1. F：上文提及蜜蜂、蝴蝶的传粉作用，下文说明无传粉植物无法结果，F项“超过75%的开花植物需要传粉帮助”承上传粉话题，启下说明传粉的必要性，符合逻辑。
2. D：上文举例蜜蜂、蝴蝶的作用，下文讲分解动植物的生物，D项“其他小型生物，比如蘑菇，也发挥着作用”承接上文举例，引出下文对蘑菇作用的介绍，符合语境。
3. A：上文提到砍伐树木导致动物失家、森林冷清，A项“这种损失向我们展示了不健康生态系统的危害”总结生态被破坏的后果，符合逻辑。
4. B：上文讲保护自然的方式（种树、种花），下文提到“During the walk”，B项“我们也可以在大自然中散步，更多地了解它”补充保护自然的方式，与下文的walk呼应，符合语境。
5. E：下文提到人类是生态系统的一部分，要与自然和谐相处，E项“从长远来看，保护自然意味着保护我们自己”总结保护自然的意义，引出下文内容，符合逻辑。
【答案】F、D、A、B、E
【知识点】说明文阅读、七选五解题、生态保护
【点评】本题为环保主题的说明文七选五，侧重考查语篇逻辑关系的把握，解题需关注话题一致性与上下文衔接，有助于学生理解生态系统的关联性及保护自然的重要性。
【难度系数】0.6