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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(传粉). 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 ＞＞逻辑衔接 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 mushrooms, 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.
1. 2. 3. 4. 5.
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(传粉). 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 ＞＞逻辑衔接 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 mushrooms, 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.
1. 2. 3. 4. 5.
答案
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。
＞＞ 递进关系
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。
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。
＞＞ 递进关系
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。
解析
【分析】
解答七选五题型需先通读全文，把握文章主题为“生态系统的联系与自然保护”，再分析每个空白处的上下文逻辑关系（如举例、衔接、总结等），结合选项关键词匹配语境：1. 空前后围绕“传粉”展开，需选与传粉相关的选项；2. 空后介绍分解动植物的生物，需选举例其他生物作用的选项；3. 空前提到森林被破坏的现象，需选总结危害的选项；4. 空后出现“During the walk”，需选与散步相关的选项；5. 空后强调人类是生态系统一部分，需选总结保护自然意义的选项。
【解析】
1. 上文提到蜜蜂和蝴蝶对传粉重要，下文指出没有传粉植物无法结果，F项“超过75%的开花植物需要传粉帮助”承上启下，符合语境，故选F。
2. 上文举例蜜蜂、蝴蝶的作用，下文介绍分解动植物的生物，D项“其他小型生物，比如蘑菇，也发挥着作用”衔接上下文，举例说明其他生物的作用，故选D。
3. 上文提到砍伐树木导致动物失去家园、森林变得安静，A项“这种损失向我们展示了不健康生态系统的危害”总结上文破坏生态的后果，故选A。
4. 上文提出保护自然的方式，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”补充保护方式，且与下文呼应，故选B。
5. 下文指出人类是生态系统的一部分，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，符合语境，故选E。
【答案】
1.F 2.D 3.A 4.B 5.E
【知识点】
七选五阅读、环境保护、语篇衔接
【点评】
本题为说明文类七选五，围绕生态系统与自然保护展开，侧重考查语篇逻辑衔接能力，需学生准确把握上下文的指代、举例、总结等关系，难度适中，适合中等水平学生练习。
【难度系数】
0.5
解答七选五题型需先通读全文，把握文章主题为“生态系统的联系与自然保护”，再分析每个空白处的上下文逻辑关系（如举例、衔接、总结等），结合选项关键词匹配语境：1. 空前后围绕“传粉”展开，需选与传粉相关的选项；2. 空后介绍分解动植物的生物，需选举例其他生物作用的选项；3. 空前提到森林被破坏的现象，需选总结危害的选项；4. 空后出现“During the walk”，需选与散步相关的选项；5. 空后强调人类是生态系统一部分，需选总结保护自然意义的选项。
【解析】
1. 上文提到蜜蜂和蝴蝶对传粉重要，下文指出没有传粉植物无法结果，F项“超过75%的开花植物需要传粉帮助”承上启下，符合语境，故选F。
2. 上文举例蜜蜂、蝴蝶的作用，下文介绍分解动植物的生物，D项“其他小型生物，比如蘑菇，也发挥着作用”衔接上下文，举例说明其他生物的作用，故选D。
3. 上文提到砍伐树木导致动物失去家园、森林变得安静，A项“这种损失向我们展示了不健康生态系统的危害”总结上文破坏生态的后果，故选A。
4. 上文提出保护自然的方式，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”补充保护方式，且与下文呼应，故选B。
5. 下文指出人类是生态系统的一部分，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，符合语境，故选E。
【答案】
1.F 2.D 3.A 4.B 5.E
【知识点】
七选五阅读、环境保护、语篇衔接
【点评】
本题为说明文类七选五，围绕生态系统与自然保护展开，侧重考查语篇逻辑衔接能力，需学生准确把握上下文的指代、举例、总结等关系，难度适中，适合中等水平学生练习。
【难度系数】
0.5
