Unit2 A Look into the Past Section B (3a‑Self Check)课时同步练习2026-2027学年人教版英语九年级下册

**基本信息** 初中英语新授课同步练，分层设计清晰，从基础词汇语法到语篇综合应用，助力语言能力与文化意识培养。 **分层设计** |层次|知识覆盖|设计特色| |----|----------|----------| |夯实基础|单词、短语汉译英，词形变换|聚焦核心词汇巩固，如secret的形副转换，夯实语言能力基础| |能力进阶|情态动词推测，句型转换，情景对话|通过语法综合填空（must/might）和补全对话，提升语言应用与思维品质| |拓展提高|单元精读，素养阅读，写作|结合文化遗产主题阅读与书信写作，深化文化意识与学习能力|

Unit2 A Look into the Past Section B (3a‑Self Check)同步练习 建议用时：25分钟 一、单词汉译英 1. 秘密 ________ 2. 考古的 ________ 3. 线索 ________ 2. 后代；子孙 ________ 5. 文献；书面记录 ________ 3. 猜想；推测 ________ 7. 幸存；留存 ________ 二、短语汉译英 1. 书面记录 ________ 2. 一代又一代 ________ 3. 为后代保存 ________ 2. 解开秘密 ________ 5. 做研究 ________ 三、词形变换 1. secret (n.) →________ (adj. 秘密的)；________(adv. 秘密地) 2. archaeology (n.) →________ (adj. 考古的)；________(n. 考古学家) 3. clue (n.) → ________(复数) 4. survive (v.) →________ (n. 幸存；生存)；________(过去分词) 5. record (n.) → ________(v. 记录) 一、语法综合填空（情态动词推测综合 must /might/could /can’t /must have done） 1. Some ancient secrets still ________ (remain) unsolved today. 2. Those old records ________ (offer) us important clues about the past. 3. They ________ have faced lots of difficulties long ago.（must / need） 4. We should preserve relics so that later generations ________ (learn) history from them. 5. It ________ be the palace, because no palace‑building marks are found here.（can’t / must） 二、句型转换（情态动词推测复合句互换） 1. I think it is possible that the workers knew metal‑making skills.（用 might have done 改写） I think the workers ________ ________ ________ metal‑making skills. 2. Scientists think: “They built large buildings many centuries ago.”（改为含 must have done 的宾语从句） Scientists think that they ________ ________ ________ large buildings many centuries ago. 3. It is impossible that the ancient people had modern machines.（用 can’t have done 改写） The ancient people ________ ________ ________ modern machines. 三、选词填空 【secret, archaeological, clue, survive, record】 1. Some ________ of the past are still waiting for us to find out. 2. Many ________ teams keep working on these old sites. 3. Old artefacts give us important ________ about ancient life. 4. Only a small number of relics can ________ for thousands of years. 5. Written ________ also help us study ancient history. 四、情景补全对话（5 个空，6 个选项，1 项多余） A. What can we learn from those old things B. Do you enjoy reading about history C. Where can we get clues about ancient life D. What should we do to protect our heritage E. Must all ancient mysteries be solved one day F. Can we visit real archaeological working sites A: 1.________ B: Yes, I really love learning about ancient sites and relics. A: 2.________ B: We can get clues from both artefacts and written records. A: 3.________ B: We can know how ancient people worked, lived and created things. A: 4.________ B: We should respect them and try our best to preserve these relics. A: 5.________ B: Not all of them. Some secrets might stay unknown forever. Passage1 单元精读（改编 3a 阅读文本） Some ancient secrets are still waiting for us. Written records and physical relics give us different kinds of clues. Not every old object can survive for centuries. Archaeologists compare records and artefacts. They try to picture what life was like long ago. Some puzzles will never get answers. However, every relic is valuable. We should hand down our cultural heritage to later generations. 任务一：单选 1. What is the main theme of this passage? A. Ancient secrets, relics and protecting cultural heritage B. The modern life of city teenagers C. How to build new‑style museums D. The history of modern computers 2. What does the underlined word “picture” mean here? A. 想象；描绘 B. 画画（实物绘画） C. 拍照 D. 印刷书籍 任务二：简答 1. Why should we hand cultural heritage down to later generations? _______________________________________________________________________________ Passage2 素养拓展阅读 History is more than old stories. Silent relics and historical sites are our treasure. Studying the past helps us value our present life. As students, we can learn more about our cultural heritage. We should not damage old relics. Even small actions matter. Respecting history makes us understand our own culture better. 任务一：单选 1. What can studying the past help us do? A. Value our present‑day life B. Know how to make modern high‑speed trains C. Get ancient gold for ourselves D. Solve all modern social problems at once 2. What can we infer from the text? A. Students can also do something to respect cultural heritage B. Only archaeologists need to care about relics C. We should damage old relics for fun D. History is nothing but useless old stories 任务二：判断正误 (T/F) 1. History is more than just old stories. (  ) 2. We should damage some relics for fun. (  ) 任务三：简答 1. What can we students do about cultural heritage? _______________________________________________________________________________ 任务四：单元写作（书信，80 词左右） Write a short letter to your pen pal, introduce one Chinese historical site you know. _______________________________________________________________________________ _______________________________________________________________________________ _______________________________________________________________________________ 参考答案与解析 夯实基础 一、单词汉译英 1.secret 2.archaeological 3.clue 4.descendant 5.written record 6.guess 7.survive 二、短语汉译英 1.written records 2.generation after generation 3.preserve for later generations 4.solve secrets [5.do](5.do) research 三、词形变换 1.secret; secretly 解析：secret 名词秘密，同时可作形容词；secretly 副词秘密地。 2.archaeological; archaeologist 解析：archaeology 考古学；archaeological 形容词考古的；archaeologist 考古学家。 3.clues 解析：clue 可数名词，复数 clues。 4.survival; survived 解析：survive 动词幸存；survival 名词幸存；survived 过去分词。 5.record 解析：record 名词记录，也可作动词 “记录”。 能力进阶 一、语法综合填空 1.remain 解析：secrets 复数，谓语动词原形 remain。 2.offer 解析：records 复数，谓语 offer。 3.must 解析：must have done 对过去肯定推测。 4.can learn 解析：so that 引导目的状语从句，can + 动词原形。 5.can’t 解析：can’t 否定推测 “不可能”。 二、句型转换 1.might have known 解析：might have done 对过去可能性推测。 2.must have built 解析：must have done 对过去肯定推测。 3.can’t have had 解析：can’t have done 对过去否定推测。 三、选词填空 1.secrets 2.archaeological 3.clues 4.survive 5.records 四、情景补全对话 答案：1.B 2.C 3.A 4.D 5.E；多余项：F 解析： 1. 答句 Yes，B 你喜欢读历史相关内容吗； 2. 答句回答线索来源，C 我们从哪里获取古人生活的线索； 3. 答句回答收获，A 我们能从这些古物中学到什么； 4. 答句回答保护做法，D 我们该如何保护文化遗产； 5. 答句 “不是全部谜题都能解开”，E 所有古代谜团终有一天都能解开吗。 拓展提高 Passage1 任务一：1.A 2.A 任务二简答：So later generations can learn history from them. Passage2 任务一：1.A 2.A 任务二：1.T 2.F 任务三简答：We should respect relics and do not damage them. 任务四写作参考范文 Dear Tom, I’d like to tell you about Sanxingdui, a famous Chinese historical site. It is very mysterious. Lots of amazing metal masks and artefacts were dug out there. It shows the great skills of ancient Chinese people. I hope you can learn more about Chinese culture. Yours, Li Hua 学科网（北京）股份有限公司 $