B
①In a room at Stanford University, scientists are studying a small animal called gecko. It's an amazing animal because it can move very quickly up and down a tree and it can even walk upside down on ceilings. The scientists are particularly interested in the gecko's feet. They want to use the same design on their own robot. The metal robot looks very similar to the gecko. It has four feet which can also walk up walls made of glass or plastic. However, it still has a more difficult time when it tries to walk upside down.
②Animals and plants can teach humans a lot about design and engineering. When scientists and engineers have a problem, nature often has the answer. This science is called biomimetics. Bio- means “studying living things” and mimetic means “copying the movement of things”. In other words, scientists study animals and plants in order to copy the design.
③Take whales for example. Engineers in Canada are studying their flippers because they move effectively through water. The engineers think the shape can also improve the movement of wind turbines(涡轮机). Similarly, the boxfish is another animal from the sea which is helping car producers in Germany. Mercedes-Benz is using the shape of the fish for one of its new cars. The shape makes it faster and more fuel-efficient.
④Velcro is probably the most famous example of biomimetics. Most people have some Velcro on an item of clothing. It was invented by the Swiss engineer George de Mestral in the 1940s. He was walking in the countryside when he pulled a plant's bur(刺果) from his trousers. He noticed how the bur stuck so well to his clothes. He worked on his idea and the result was Velcro, which became an affordable alternative(替代物) to the traditional zip.
⑤In conclusion, biomimetics has helped to design our world and there are many more future possibilities. Unfortunately, it might take a long time to discover all the possibilities. This isn't really surprising because it's taken nature thousands of years to design its animals and plants.
()4. How does the writer organise Paragraph 1?
A. By using numbers.
B. By listing opinions.
C. By showing reasons.
D. By giving an example.
()5. What does the underlined word "it" in Paragraph 3 refer to?
A. The car.
B. The whale.
C. The boxfish.
D. The turbine.
()6. Which of the following shows the structure of the passage?
A. ①/②③④/⑤
B. ①/②/③④/⑤
C. ①②③/④/⑤
D. ①/②③/④/⑤
()7. Which of the following is the best title for the passage?
A. Plants and Biomimetics
B. Nature and Engineers
C. Biomimetics and Inventions
D. Gecko—An Amazing Animal
读后词汇拓展 猜出画波浪线单词的词性和中文意思,并收入自己的小词典

4. D 5. A 6. A 7. C

【分析】
本题为英语阅读理解题，需结合原文内容逐一分析各小题：第4题需判断第一段的段落展开手法；第5题需定位划线词所在句，结合上下文确定指代对象；第6题需梳理各段落核心内容划分文章结构；第7题需归纳全文核心话题确定最佳标题。
【解析】
4. 第一段以斯坦福大学研究壁虎的具体实例展开，通过事例引出仿生学相关内容，组织方式为举例子，故选D。
5. 第三段划线词所在句为“Mercedes-Benz is using the shape of the fish for one of its new cars. The shape makes it faster and more fuel-efficient.”，此处it指代前文提到的“new car”，故选A。
6. 文章结构划分：①段引入壁虎研究的例子；②③④段分别介绍仿生学的不同应用实例；⑤段总结仿生学的意义与未来，故结构为①/②③④/⑤，故选A。
7. 全文围绕“仿生学（biomimetics）”及其相关发明展开，A选项仅涉及植物，B选项未突出仿生学核心，D选项仅为文中例子，故最佳标题为C。
【答案】
4.D 5.A 6.A 7.C
【知识点】
英语阅读理解、词义指代、主旨大意归纳
【点评】
本题考查英语阅读理解的核心题型，要求学生具备细节定位、逻辑分析及主旨归纳能力，需结合原文信息逐一推导，难度适中。
【难度系数】
0.5

读后词汇拓展 猜出画波浪线单词的词性和中文意思，并收入自己的小词典。
1. biomimetics 2. affordable

1. n. 仿生学 2. adj. 买得起的

【分析】本题为英语词汇拓展题型，需结合英语词汇的词性规则及常见词义，判断给定单词的词性并写出其中文意思。首先回忆biomimetics的词性与含义，再辨析affordable的词性和词义即可完成作答。
【解析】1. 单词biomimetics是名词，中文意思为仿生学；2. 单词affordable是形容词，中文意思为买得起的。
【答案】1. n. 仿生学 2. adj. 买得起的
【知识点】英语词汇 词性判断 词义识记
【点评】本题考查基础英语词汇的词性与词义，是英语学习中词汇积累的基础内容，难度不大，适合巩固词汇基础。
【难度系数】0.8