Ⅳ.完形填空。
For a century, the dinosaur hall in every museum and book showed the same picture: giant, roaring 1. This was an unshakable (不可动摇的) 2. Then there was a(n) 3. discovery in a lab. A piece of golden amber held a dinosaur's tail, covered in delicate (精致的) 4. This finding didn't just add a fact; it changed an old world and 5. a new one. It was a powerful lesson that science always moves 6. The real discovery was about how we learn, not just what we learn. This story 7. be told to every student. It shows 8. even our strongest beliefs can be wrong. We must have the 9. to accept this when the facts change. That piece of amber is more than a fossil; it's a mirror of the scientific mind 10.
()1. A. lizards B. birds
C. fish D. insects
()2. A. leaf B. belief
C. rule D. fact
()3. A. amazing B. old
C. small D. boring
()4. A. skin B. feathers
C. scales D. fur
()5. A. built B. broke
C. found D. forgot
()6. A. forward B. back
C. away D. around
()7. A. can B. may
C. should D. must
()8. A. why B. how
C. that D. if
()9. A. courage B. mercy
C. luck D. kindness
()10. A. himself B. itself
C. ourselves D. themselves

Ⅳ.完形填空。
1.A 2.B 3.A 4.B 5.A 6.A 7.C 8.C 9.A 10.B

【分析】
做完形填空首先要通读全文把握核心主旨：本文围绕带羽毛的恐龙琥珀化石的发现展开，讲述这一发现推翻了人类过去对恐龙的固有认知，传递了科学始终向前发展、要勇于接受新事实的道理。解题时优先结合上下文的前后呼应线索，再结合词义辨析、固定搭配和相关常识逐一匹配选项，排除不符合语境的错误答案，最终确定每空的正确选项。
【解析】
1. 第1空：过去一个世纪所有科普内容里的传统恐龙形象都是巨型、咆哮的蜥蜴，A选项lizards（蜥蜴）符合大众对恐龙的早期刻板认知，B鸟类、C鱼类、D昆虫都不符合传统恐龙的形象设定，选A。
2. 第2空：这种对恐龙的固有认知是不可动摇的信念，后文也出现了对应线索"our strongest beliefs"，B选项belief（信念）符合语境，A叶子、C规则、D事实都不符合（该认知后续被推翻，并非客观事实），选B。
3. 第3空：实验室里发现包裹恐龙尾巴的琥珀是非常惊人的成果，A选项amazing（令人惊叹的）符合语境，B老旧的、C微小的、D无聊的都和该发现的重大意义矛盾，选A。
4. 第4空：该琥珀化石的核心价值是证明恐龙长有羽毛，尾巴上覆盖着精致的羽毛，B选项feathers（羽毛）符合这一考古发现的特征，A皮肤、C鳞片、D哺乳动物的皮毛都不符合该发现的核心突破点，选B。
5. 第5空：这个发现推翻了旧的认知世界，同时建立了全新的认知体系，A选项built（建立）符合逻辑，B打破、C找到、D忘记都不符合"新的认知世界"的搭配逻辑，选A。
6. 第6空：这个案例充分说明科学永远是向前发展的，move forward是固定搭配表示"前进、向前发展"，A选项forward符合语境，选A。
7. 第7空：这个传递科学精神的故事理应讲给每一位学生，C选项should（应该）符合教育场景下的合理倡导语气，A能够、B可以语气过弱，D必须语气过于强硬，选C。
8. 第8空：空格后是完整的陈述事实的宾语从句，从句不缺成分，用that引导即可，C选项that符合语法要求，选C。
9. 第9空：当事实发生变化时，我们需要有勇气推翻旧认知、接受新结论，A选项courage（勇气）符合语境，B仁慈、C运气、D善意都和语境无关，选A。
10. 第10空：此处反身代词指代前面的单数名词a mirror，用itself表示"镜子本身"，B选项itself符合指代规则，选B。
【答案】
1.A 2.B 3.A 4.B 5.A 6.A 7.C 8.C 9.A 10.B
【知识点】
语境词义辨析，宾语从句引导词，反身代词
【点评】
本题属于科普主题的完形填空，整体难度适中，大部分题目都可以通过上下文的线索呼应直接选出，少数题目结合基础的古生物常识即可判断，既考察学生的词汇和上下文理解能力，也渗透了尊重事实的科学思维教育。
【难度系数】
0.7

Ⅴ.阅读理解。
Nature is full of amazing secrets.
There are huge black holes in space that we cannot see. There are stories about large creatures like Bigfoot in forests. There is even a hot, boiling river in the Amazon rainforest!
These mysteries make us curious. How do we explore them? Scientists use different methods. They observe, ask questions, and look for evidence. They also use tools like telescopes, microscopes and satellites to help them see what is hidden from our eyes.
Sometimes, a small discovery can unlock a big secret. For example, a piece of amber showed us that some dinosaurs had feathers! Every finding, big or small, adds a piece to the puzzle of our world.
Exploring nature helps us understand our world better. It is a journey full of surprises and wonders, and it never really ends—because there is always more to learn.
()1. What does the underlined word "them" in Paragraph 3 refer to?
A. Forests.
B. Secrets of nature.
C. Scientists.
D. Different methods.
()2. What does the writer mention about the Amazon rainforest?
A. It has big black holes.
B. There are stories about Bigfoot.
C. There is a hot, boiling river.
D. Scientists never go there.
()3. How did scientists find out some dinosaurs had feathers?
A. By looking at a piece of amber.
B. By asking Bigfoot.
C. By studying black holes.
D. By exploring the boiling river.
()4. What is the best title for the passage?
A. How Scientists Explore Nature's Mysteries.
B. Amazing Discoveries in the Natural World.
C. The Never-Ending Journey of Discovery.
D. Tools That Help Us Understand Nature.

Ⅴ.阅读理解。
1—5 BCAC

【分析】
这是一篇英语阅读理解题，解题时可以按照以下思路推进：首先快速通读全文梳理核心脉络，明确文章围绕自然奥秘探索展开，点明探索自然是永无止境的惊喜旅程。之后针对不同题型逐个突破：指代题定位划线词所在段落，向前查找前文出现的符合逻辑的复数指代对象；细节题提取题干关键词回原文精准定位，直接匹配原文内容选出答案；主旨大意题要排除仅覆盖文章局部内容的片面选项，选出能统领全文核心的标题。
【解析】
1. 第一题：定位到第三段前两句"These mysteries make us curious. How do we explore them?"，前文的mysteries指代的就是开篇提到的大自然的各类秘密，因此划线的them指代自然的秘密，选B。
2. 第二题：提取题干关键词Amazon rainforest，定位到第二段最后一句"There is even a hot, boiling river in the Amazon rainforest!"，可知作者提到亚马逊雨林里存在一条滚烫的沸腾河流，选C。
3. 第三题：提取题干关键词dinosaurs had feathers，定位到第四段"For example, a piece of amber showed us that some dinosaurs had feathers!"，可知科学家是通过一块琥珀发现部分恐龙长有羽毛的，选A。
4. 第四题：逐一排查选项：A仅覆盖科学家探索方法的局部内容，B仅侧重自然发现的部分内容，D仅提到探索工具的细节，三个选项都很片面；只有C选项"永无止境的发现之旅"完全匹配全文最后一段点明的探索永不结束的核心主旨，选C。
【答案】
1. B 2. C 3. A 4. C
【知识点】
细节信息定位，指代逻辑判断，主旨大意归纳
【点评】
本篇是科普类说明文，整体难度适中，前3道细节题都可以直接在原文找到对应依据，易错点是第4题的主旨题，不少学生容易误选只覆盖局部段落内容的片面选项，解题时要注意判断选项是否能统领全部段落的核心，不能只根据某一段的内容盲目选择。
【难度系数】
0.6