Unit 1 Assessing Your Progress（以读促写课分层作业）英语人教版选择性必修第二册

**基本信息** 本练习以科学主题读后续写为核心，通过基础层、提高层、培优层三级递进设计，融合线索分析、科学行动链构建与语言应用，强化语言能力与科学思维品质的协同发展。 **分层设计** |层次|知识覆盖|设计特色| |----|----------|----------| |基础层|科学线索辨析、行动链逻辑排列、续写诊断|以C/I/A/U辨析题（A1）和步骤排序题（A2）夯实科学思维基础，通过诊断"不可信续写"（A3）培养批判性思维| |提高层|同主题阅读分析、科学语言应用|原创语篇阅读（B1）结合冲突分析题，语言填空（B2）强化"线索-行动"表达，衔接基础技能与语篇应用| |培优层|综合读后续写创作与自评|提供规划表（C1）引导线索回收（如传感器位置、冰袋质量）和科学行动链（控制变量→重复测试→修正结论），终稿自检表促进元认知能力|

人教版高中英语选择性必修第二册 UNIT 1 SCIENCE AND SCIENTISTS Assessing Your Progress（以读促写课）分层作业（学生原卷版） 姓名/班级/日期 __________________ __________________ __________________ 建议用时 基础层15分钟；提高层25分钟；培优层40分钟 分层路径 基础层：A　｜　提高层：A+B　｜　培优层：A+B+C 作业目标 回收伏笔；构建可信行动链；完成科学主题读后续写 说明：本作业承接讲义 The Experiment That Wouldn’t Work，重点训练“线索触发行动、变量控制、重复测试、谨慎结论”。B、C部分语篇均为本项目原创。 A. 基础达标 A1 线索、推断与行动辨析 [必做] Read each statement and write C (Clue), I (Inference), A (Reasonable action), or U (Unsupported action). 1. （　　）In one photograph, the sensor wire appeared to touch the ice pack. 2. （　　）The unusually low reading may have come from a local cold spot rather than the whole bottle. 3. （　　）Keep the sensor in the same position and repeat the test. 4. （　　）The box must be the best design because Trial 3 produced the lowest number. 5. （　　）The ice-pack mass was missing from one test sheet. 6. （　　）Record the missing condition and revise the conclusion if the result cannot be repeated. A2 排列可信的科学行动链 [必做] Put the steps in a logical order. Write numbers 1—6. （　）Revise the claim so that it matches the repeated evidence. （　）Compare photographs, graphs, and test records. （　）Keep starting temperature, ice-pack mass, sensor position, and airflow constant. （　）Retain the unusual reading instead of deleting it. （　）Identify which variables may have changed. （　）Repeat the test and record every result. A3 诊断一段“看似完整但不可信”的续写 [必做] Flawed continuation Jonah immediately knew that the sensor was broken. They replaced it and tested the box once. The temperature rose by only 0.5°C, so they proved that their design was perfect. The next day, they won first prize. They learned that honesty is always the best policy. Find at least four problems. Then rewrite the two weakest sentences. Problems: _________________________________________________________________________ __________________________________________________________________________________ Rewrite: __________________________________________________________________________ __________________________________________________________________________________ B. 能力提升 B1 同主题阅读与续写约束：The Graph That Looked Too Good [提高层] Read the original passage. Answer Questions 1—5 before planning the continuation. The Graph That Looked Too Good Maya and Jonah were preparing an entry for the school science festival. Their project was an eco-friendly cooling box made from old newspapers, cardboard, and cotton cloth. They wanted to find out whether the box could keep a bottle of water cool for forty minutes without electricity. They ran three early trials. In the first two, the water temperature rose by 4.6°C and 4.3°C. The third graph, however, was almost flat: the temperature rose by only 0.8°C. Jonah stared at the screen. ‘That is the result we need,’ he said. ‘It proves our box works far better than we expected.’ Maya copied the number into the table, but she did not circle it. That afternoon, they began arranging photographs for their display. In the picture from Trial 3, a thin sensor wire disappeared under the bottle and seemed to touch the ice pack at the bottom of the box. Maya also noticed that the test sheet listed a 120-gram ice pack for Trials 1 and 2, while the mass for Trial 3 had been left blank. Beside the box, an open window was visible in the photograph. Jonah argued that none of these details necessarily explained the result. The festival opened the next morning, and the nearly flat line would attract attention. ‘We can call it our best trial and explain the rest later,’ he said. Maya looked again at the three graphs. If the sensor had touched the ice pack, it might have measured a local cold spot instead of the water temperature. If the ice-pack mass or airflow had changed, the trials were not truly comparable. They had less than two hours before the science room closed. A complete rebuild was impossible, but one careful repeated test was still possible. Maya opened a new page in the lab notebook and wrote four headings: starting temperature, ice-pack mass, sensor position, and window condition. ‘A beautiful graph is not the same as reliable evidence,’ she said. Jonah glanced at the almost-finished display, then at the blank space beside Trial 3 in the notebook. Paragraph 1: Jonah slowly turned the laptop towards her and reopened the raw data file. Paragraph 2: At the science festival, a visitor pointed to the two graphs displayed side by side. 1. Why was Jonah attracted to the third graph? A. It made the project look unusually successful. B. It showed the water had become warmer. C. It proved that the cotton cloth was useless. D. It matched the first two trials exactly. 2. Which detail most directly suggests a measurement-position problem? A. The open window in the photograph. B. The missing mass on the test sheet. C. The sensor wire disappearing under the bottle. D. The nearly finished display board. 3. What is the central conflict at the end of the passage? A. Whether to replace newspapers with cotton. B. Whether to present an impressive result or investigate its reliability. C. Whether to close the science room early. D. Whether to invite visitors to the festival. 4. What must Paragraph 1 most reasonably include? A. A teacher giving them the correct answer. B. A single perfect test and immediate celebration. C. Comparison of clues, controlled conditions, and repeated testing. D. A long explanation of how cooling boxes are manufactured. 5. What should Paragraph 2 mainly show? A. How they explain both graphs and the revised conclusion. B. Why they hide Trial 3 from visitors. C. How they suddenly redesign the entire box. D. Why the visitor awards them first prize. B2 语言填空：从线索到行动 [提高层] Complete the paragraph with the expressions in the box. Change the form when necessary. Word Bank: hover | line up | than | constant | repeat | comparable | admit | revise From Clues to Action Jonah’s hand 1. __________ above the delete key before he pulled it back. Maya 2. __________ the three photographs and compared the sensor positions. Rather 3. __________ treating Trial 3 as their best result, they decided to keep the ice-pack mass, starting temperature, sensor position, and window condition 4. __________. They then 5. __________ the test three times. The new readings were less dramatic but far more 6. __________. Jonah restored the original graph and 7. __________ that the 0.8°C result could not support their first claim. Together they 8. __________ the conclusion and prepared to explain both the error and the improved method. 1. __________ 2. __________ 3. __________ 4. __________ 5. __________ 6. __________ 7. __________ 8. __________ C. 写作迁移 C1 完成两段读后续写 [培优层] Continue the story in 150—180 words. Recover at least two clues and include a believable scientific action chain. 规划维度 我的设计 Paragraph 1 actions 1. __________________________ 2. __________________________ 3. __________________________ 4. __________________________ Paragraph 2 actions 1. __________________________ 2. __________________________ 3. __________________________ 4. __________________________ Clues to recover □ sensor position　□ ice-pack mass　□ open window　□ missing record Scientific chain Compare → Identify → Control → Repeat → Retain → Revise Character change Jonah: ____________________ → ____________________ Paragraph 1: Jonah slowly turned the laptop towards her and reopened the raw data file. Paragraph 2: At the science festival, a visitor pointed to the two graphs displayed side by side. 终稿自检 维度 检查标准 自评 段首衔接 第一段承接raw data；第二段自然进入festival现场。 □ 线索回收 至少回收两项原文线索，并让线索触发行动。 □ 科学逻辑 包含控制变量、重复测试、保留数据和修正结论。 □ 人物成长 通过动作、对话和公开解释表现Jonah的转变。 □ 语言规范 过去时基本一致；150—180词；衔接清楚。 □ 二次修改记录 Write down the two most important changes you made after self-checking or peer review. 1. ________________________________________________________________________________ __________________________________________________________________________________ 2. ________________________________________________________________________________ __________________________________________________________________________________ 学科网（北京）股份有限公司 $ 人教版高中英语选择性必修第二册 UNIT 1 SCIENCE AND SCIENTISTS Assessing Your Progress（以读促写课）分层作业（解析版） 姓名/班级/日期 __________________ __________________ __________________ 建议用时 基础层15分钟；提高层25分钟；培优层40分钟 分层路径 基础层：A　｜　提高层：A+B　｜　培优层：A+B+C 作业目标 回收伏笔；构建可信行动链；完成科学主题读后续写 说明：本作业承接讲义 The Experiment That Wouldn’t Work，重点训练“线索触发行动、变量控制、重复测试、谨慎结论”。B、C部分语篇均为本项目原创。 A. 基础达标 A1 线索、推断与行动辨析 [必做] Read each statement and write C (Clue), I (Inference), A (Reasonable action), or U (Unsupported action). 1. （　　）In one photograph, the sensor wire appeared to touch the ice pack. 2. （　　）The unusually low reading may have come from a local cold spot rather than the whole bottle. 3. （　　）Keep the sensor in the same position and repeat the test. 4. （　　）The box must be the best design because Trial 3 produced the lowest number. 5. （　　）The ice-pack mass was missing from one test sheet. 6. （　　）Record the missing condition and revise the conclusion if the result cannot be repeated. 【参考答案】1. C　2. I　3. A　4. U　5. C　6. A 【解析】Clue必须来自原文可见细节；Inference是基于线索的合理解释；Action应能检验推断或修正方法；“一次漂亮结果就证明设计最好”超出证据边界，属于Unsupported claim。 A2 排列可信的科学行动链 [必做] Put the steps in a logical order. Write numbers 1—6. （　）Revise the claim so that it matches the repeated evidence. （　）Compare photographs, graphs, and test records. （　）Keep starting temperature, ice-pack mass, sensor position, and airflow constant. （　）Retain the unusual reading instead of deleting it. （　）Identify which variables may have changed. （　）Repeat the test and record every result. 【参考答案】按题目出现顺序填写：6，1，3，5，2，4。完整链条：Compare → Identify → Control → Repeat → Retain → Revise。 【说明】保留异常数据并不意味着把它当作可靠结论，而是把它作为需要解释的证据。重复测试后，应同时呈现原始数据、方法修正和更谨慎的结论。 A3 诊断一段“看似完整但不可信”的续写 [必做] Flawed continuation Jonah immediately knew that the sensor was broken. They replaced it and tested the box once. The temperature rose by only 0.5°C, so they proved that their design was perfect. The next day, they won first prize. They learned that honesty is always the best policy. Find at least four problems. Then rewrite the two weakest sentences. Problems: _________________________________________________________________________ __________________________________________________________________________________ Rewrite: __________________________________________________________________________ __________________________________________________________________________________ 【参考要点】①“immediately knew”没有证据；②擅自认定sensor broken，未比较其他变量；③只测试一次；④“proved/perfect”结论过度；⑤轻松获一等奖使结局失真；⑥用口号代替人物行动与认知变化。 【改写示例】After comparing the photograph with the test sheet, they suspected that the sensor position and ice-pack mass had changed. They fixed the variables and repeated the test three times, obtaining a stable but less dramatic temperature range. 基础层方法小结 判断对象 核心问题 合格表现 Clue What detail can I point to in the text? 能够定位照片、记录、物件或数据 Inference What may the clue mean? 使用may/might，避免把推断写成事实 Action How can the characters test it? 比较、控制变量、重复、记录、修正 Conclusion How far does the evidence allow us to go? 结论与证据范围一致，不写proved/perfect 【教师讲评要点】先让学生说明“依据在哪里”，再讨论“下一步行动是什么”。若答案只有honest、careful等品质词，应追问：Which action makes the quality visible? B. 能力提升 B1 同主题阅读与续写约束：The Graph That Looked Too Good [提高层] Read the original passage. Answer Questions 1—5 before planning the continuation. The Graph That Looked Too Good Maya and Jonah were preparing an entry for the school science festival. Their project was an eco-friendly cooling box made from old newspapers, cardboard, and cotton cloth. They wanted to find out whether the box could keep a bottle of water cool for forty minutes without electricity. They ran three early trials. In the first two, the water temperature rose by 4.6°C and 4.3°C. The third graph, however, was almost flat: the temperature rose by only 0.8°C. Jonah stared at the screen. ‘That is the result we need,’ he said. ‘It proves our box works far better than we expected.’ Maya copied the number into the table, but she did not circle it. That afternoon, they began arranging photographs for their display. In the picture from Trial 3, a thin sensor wire disappeared under the bottle and seemed to touch the ice pack at the bottom of the box. Maya also noticed that the test sheet listed a 120-gram ice pack for Trials 1 and 2, while the mass for Trial 3 had been left blank. Beside the box, an open window was visible in the photograph. Jonah argued that none of these details necessarily explained the result. The festival opened the next morning, and the nearly flat line would attract attention. ‘We can call it our best trial and explain the rest later,’ he said. Maya looked again at the three graphs. If the sensor had touched the ice pack, it might have measured a local cold spot instead of the water temperature. If the ice-pack mass or airflow had changed, the trials were not truly comparable. They had less than two hours before the science room closed. A complete rebuild was impossible, but one careful repeated test was still possible. Maya opened a new page in the lab notebook and wrote four headings: starting temperature, ice-pack mass, sensor position, and window condition. ‘A beautiful graph is not the same as reliable evidence,’ she said. Jonah glanced at the almost-finished display, then at the blank space beside Trial 3 in the notebook. Paragraph 1: Jonah slowly turned the laptop towards her and reopened the raw data file. Paragraph 2: At the science festival, a visitor pointed to the two graphs displayed side by side. 1. Why was Jonah attracted to the third graph? A. It made the project look unusually successful. B. It showed the water had become warmer. C. It proved that the cotton cloth was useless. D. It matched the first two trials exactly. 2. Which detail most directly suggests a measurement-position problem? A. The open window in the photograph. B. The missing mass on the test sheet. C. The sensor wire disappearing under the bottle. D. The nearly finished display board. 3. What is the central conflict at the end of the passage? A. Whether to replace newspapers with cotton. B. Whether to present an impressive result or investigate its reliability. C. Whether to close the science room early. D. Whether to invite visitors to the festival. 4. What must Paragraph 1 most reasonably include? A. A teacher giving them the correct answer. B. A single perfect test and immediate celebration. C. Comparison of clues, controlled conditions, and repeated testing. D. A long explanation of how cooling boxes are manufactured. 5. What should Paragraph 2 mainly show? A. How they explain both graphs and the revised conclusion. B. Why they hide Trial 3 from visitors. C. How they suddenly redesign the entire box. D. Why the visitor awards them first prize. 【参考答案】1. A　2. C　3. B　4. C　5. A 【解析】1. 第三条线几乎不升温，能让项目显得格外成功。2. 传感器线伸到瓶底并接近冰袋，直接指向局部测量。3. 表层是时间不足，核心是漂亮结果与可靠证据之间的选择。4. 第一段应完成“比较—控制—重复—修正”。5. 第二段承接现场展示，要呈现公开解释、人物转变和谨慎结论。 B2 语言填空：从线索到行动 [提高层] Complete the paragraph with the expressions in the box. Change the form when necessary. Word Bank: hover | line up | than | constant | repeat | comparable | admit | revise From Clues to Action Jonah’s hand 1. __________ above the delete key before he pulled it back. Maya 2. __________ the three photographs and compared the sensor positions. Rather 3. __________ treating Trial 3 as their best result, they decided to keep the ice-pack mass, starting temperature, sensor position, and window condition 4. __________. They then 5. __________ the test three times. The new readings were less dramatic but far more 6. __________. Jonah restored the original graph and 7. __________ that the 0.8°C result could not support their first claim. Together they 8. __________ the conclusion and prepared to explain both the error and the improved method. 【参考答案】1. hovered　2. lined up　3. than　4. constant　5. repeated　6. comparable　7. admitted　8. revised 【解析】hover above表示“悬停在……上方”；line up意为“排成一列便于比较”；rather than为固定搭配；keep ... constant表示控制变量；repeat用一般过去时；comparable表示“可比较的”；admit/revise均与上下文过去时一致。 C. 写作迁移 C1 完成两段读后续写 [培优层] Continue the story in 150—180 words. Recover at least two clues and include a believable scientific action chain. 规划维度 参考设计 Paragraph 1 actions reopen all data → compare photo and test sheet → identify sensor/mass/airflow problems → standardise conditions → repeat three times → restore Trial 3 and revise claim Paragraph 2 actions visitor compares two graphs → asks about the difference → Jonah admits the unreliable trial → Maya explains method → visitor values transparent investigation Clues recovered sensor position; missing ice-pack mass; open window; blank record Scientific chain Compare → Identify → Control → Repeat → Retain → Revise Character change Jonah: attracted by a striking result → willing to question and explain it publicly Model continuation Jonah slowly turned the laptop towards her and reopened the raw data file. He and Maya lined up the photographs with the test sheets. In Trial 3, the sensor touched the ice pack, its mass was missing, and the window was open. Instead of deleting the result, they fixed the sensor in the centre, used an equal ice-pack mass, closed the window, and repeated the test three times. The water warmed by 4.1°C, 4.4°C, and 4.2°C. The stable readings led them to restore Trial 3 and revise their claim. At the science festival, a visitor pointed to the two graphs displayed side by side. Jonah admitted that the flat line came from uncontrolled conditions. Maya showed their checklist and repeated results. They explained that the box slowed warming by about four degrees under those conditions, not almost completely. “The second graph is less dramatic,” the visitor said, “but your investigation is stronger.” Looking at the restored data, Jonah realised that correcting a claim had not weakened their project. It had made it trustworthy. 【结构批注】第一段回收sensor、ice-pack mass、open window和blank record，完成“比较—控制—重复—保留—修正”；第二段通过访客追问给Jonah公开解释的机会，结尾用“worth trusting”自然呈现科学诚信。 维度 分值 判定要点 段首衔接 2 准确承接raw data与festival现场 线索回收 2 至少两项线索转化为具体行动 科学行动链 2 控制变量、重复测试、保留数据、修正结论 人物与主题 2 Jonah的转变通过行动和公开解释呈现 语言与规范 2 时态、衔接、词数和表达基本准确 【常见问题】①把传感器“肯定坏了”写成事实；②只重测一次就声称证明；③丢弃Trial 3而非保留并标注；④访客或评委直接说教，人物没有主动解释；⑤结尾写轻松夺冠，削弱真实感；⑥只贴honest/careful标签，没有行为证据。 学科网（北京）股份有限公司 $