第二节 根据短文内容，从选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。
In ancient Greece, there was a knowledgeable scientist called Archimedes. He had a strong interest in numbers, shapes and how things worked. 16.
One day, the King turned to him with his beautiful gold crown (皇冠) because some people doubted if it was pure gold—maybe silver was mixed in the crown. 17.
Archimedes thought hard about the problem for days, but he couldn't think of any solutions. One afternoon, when getting into his bath, he saw water spilling (溢出) over all sides. 18. He rushed out of the bathroom, shouting “Eureka! Eureka!” excitedly, which means “I’ve got it!” in Greek.
To prove his hypothesis (猜想), he filled a bowl with water, and took a gold block (砖) and a silver block. 19. First, he put the silver in, which made the water spill a lot. Then the gold—less water spilled. At last, he tested the crown. It made more water spill than the gold block. This showed the crown was not pure gold.
20. Therefore, remember to pay close attention to your daily life, and then you may discover answers to your problems.

第二节
16. G 17. C 18. A 19. E 20. B

【分析】
解答七选五题型时，首先需通读全文把握语篇主旨（本文围绕阿基米德发现浮力定律的经典故事展开），再逐一分析每个空格的上下文逻辑、话题衔接关系，结合选项排除干扰项，确定符合语境的答案。具体需关注空格前后的指代、逻辑顺承（如过渡、因果）、话题一致性等线索，逐步推导每个空的最佳选项。
【解析】
16. 空格前介绍阿基米德的身份与兴趣，空格后引出国王求助的事件，需填入衔接他后续相关经历的内容，对应选项G；
17. 空格前说明国王因皇冠问题找阿基米德，需填入国王的具体诉求，对应选项C；
18. 空格前描述阿基米德洗澡时看到水溢出的场景，需填入该现象带来的启发，对应选项A；
19. 空格前提到阿基米德准备实验材料，需填入实验的具体操作，对应选项E；
20. 空格前是实验结论，空格后是总结感悟，需填入阿基米德的发现，对应选项B。
【答案】
16.G 17.C 18.A 19.E 20.B
【知识点】
英语阅读理解（七选五题型）
【点评】
本题以阿基米德的科学发现故事为载体，考查七选五题型的上下文逻辑衔接能力，既检验学生的语篇理解水平，又传递了“留心日常发现问题”的道理，难度适中。
【难度系数】
0.6