D
根据短文内容，从下面所给的 A、B、C、D、E 五个选项中，选出能填入空白处的最佳选项，使文章内容完整且符合逻辑。
We sometimes call the lion “the King of the Jungle（丛林）”, because it is stronger and more dangerous than other animals. 26. It is the highest animal in the land food chain（链）.
Among the sea animals, the shark is one of the animals at the top of the food chain. It can swim faster than most other sea animals. 27.
What is at the top of the world’s food chain? People are! 28. We could not run faster than cheetahs, but we invented（发明）cars and now we can move the fastest. We could not fight better than lions, but we invented guns. Now we can hunt best.
People’s inventions are clever, but they can be dangerous too. For example, people invented factories, but now they make the air and rivers dirty. 29. Dirty rivers kill fish. The bears cannot eat the fish and they die. If we kill one part of the food chain, other parts may also die. Remember that we are also part of the food chain, so we are in danger too! 30. We should and we could do something for the world!
A. Protecting animals is protecting ourselves!
B. And it can use its sharp teeth to eat them.
C. This can bring terrible changes.
D. We are not the biggest or the fastest, but we are the cleverest.
E. It can run faster than many animals and it can hunt best.

26－30 EBDCA

【分析】
首先通读全文，把握文章围绕“食物链顶端的生物及人类与生态的关系”展开的脉络，再逐个分析空格：26空前文描述狮子的强壮危险，后文提到它是陆地食物链顶端，需选体现狮子捕猎优势的选项；27空前文讲鲨鱼游得快，需补充鲨鱼的捕猎能力；28空前文问谁是食物链顶端，答人类，后文讲人类靠发明弥补不足，需选体现人类聪明的选项；29空前文讲工厂污染，后文讲污染的后果，需选承上启下的过渡句；30空前文强调人类是食物链的一部分，后文呼吁行动，需选符合呼吁主题的选项。
【解析】
1. 26题：前文介绍狮子是丛林之王，后文说明它是陆地食物链最高级，E选项“它能跑得比很多动物快，捕猎最好”符合狮子的能力特征，衔接上下文，故选E；
2. 27题：前文提到鲨鱼游得比多数海洋动物快，B选项“它能用锋利的牙齿吃掉其他动物”补充鲨鱼作为海洋食物链顶端的捕猎能力，符合语境，故选B；
3. 28题：前文问“谁是世界食物链的顶端”，答“人类”，后文讲人类靠发明弥补自身不足，D选项“我们不是最大或最快的，但我们是最聪明的”衔接后文的发明内容，故选D；
4. 29题：前文讲工厂污染空气和河流，后文讲污染导致鱼死亡、熊死亡，C选项“这会带来可怕的变化”承上启下，连接污染及其后果，故选C；
5. 30题：前文强调人类是食物链的一部分，自身也处于危险中，后文说要为世界做事，A选项“保护动物就是保护我们自己”符合呼吁保护生态的主题，故选A。
【答案】
26－30 EBDCA
【知识点】
英语七选五阅读、上下文逻辑衔接
【点评】
本题围绕食物链主题，考查学生对语篇逻辑的理解与运用，需结合前后文语境匹配选项，难度适中，理清文章脉络即可正确作答。
【难度系数】
0.5

Ⅲ. 阅读短文，在空白处填入适当的词或用括号中所给词的正确形式填空。每空不超过两词。
In a lively forest, every creature plays 31. special role in the ecosystem. The giant redwood trees, which are among the 32. (tall) plants on earth, provide homes for birds. Bees collect pollen from flowers and store honey in their honeycombs. Even the tiny ants communicate 33. each other by touching the antennae（触角）.
One day, a butterfly with colourful wings 34. (land) on a lotus. It said, “The climate is 35. (change). The bamboo 36. (shoot) are disappearing, and the mushrooms can't break down dead plants fast enough.” 37. the animals decided 38. (take) action. They created a plan to protect 39. (they) homes.
After that, they worked hard every day. Finally, the forest became 40. (health) again. They learnt that even small actions can play a part in saving their homes.

31. a 32. tallest 33. with
34. landed 35. changing
36. shoots 37. So 38. to take
39. their 40. healthy

【分析】本题为英语语法填空题，需结合固定搭配、形容词最高级、动词时态、词性转换、连词用法等知识点，根据上下文语境及语法规则填写适当词汇或所给词的正确形式。具体思路：逐一分析每个空格的语法要求，结合固定搭配、时态、词性变化等规则确定答案。
【解析】31. 考查固定搭配play a role in，此处表“扮演一个特殊角色”，故填a；32. 考查形容词最高级，among表“在三者及以上之中”，后接形容词最高级，tall的最高级为tallest；33. 考查固定搭配communicate with sb，意为“与某人交流”，故填with；34. 考查一般过去时，描述过去发生的动作，land的过去式为landed；35. 考查现在进行时，结构为“am/is/are + 现在分词”，空前有is，故填changing；36. 考查名词复数，be动词为are，主语需用复数，shoot的复数为shoots；37. 考查连词，前文提及问题，后文表结果，用So表“因此”；38. 考查固定搭配decide to do sth，意为“决定做某事”，故填to take；39. 考查形容词性物主代词，修饰名词homes，故填their；40. 考查形容词，become为系动词，后接形容词作表语，health的形容词为healthy。
【答案】31. a 32. tallest 33. with 34. landed 35. changing 36. shoots 37. So 38. to take 39. their 40. healthy
【知识点】英语语法填空、固定搭配、词性转换
【点评】本题为基础英语语法填空题，侧重考查初中阶段核心语法知识与常用固定搭配，难度适中，学生熟练掌握基础语法规则即可完成。
【难度系数】0.6