Unit5 Power of Ideas Section B（2c‑Project）课时同步练习2026-2027学年新人教版英语九年级上册

**基本信息** 初中英语Unit5 Section B同步练，分层清晰（夯实基础/能力进阶/拓展提高），从词汇语法到语篇写作螺旋式进阶，强化语言能力与思维品质。 **分层设计** |层次|知识覆盖|设计特色| |----|----------|----------| |夯实基础|单元核心词汇（汉译英、短语、词形变换）|零变形词形转换题，聚焦基础语言知识巩固| |能力进阶|被动语态（单句填空、句型转换）、词汇应用（选词填空）、情景对话|主动被动互换题型，衔接语法规则与语境应用| |拓展提高|主题阅读（细节理解、简答、判断）、微写作|单元主题精读+素养拓展，读写结合培养综合语用能力|

Unit5 Power of Ideas Section B（2c‑Project）同步练习 建议用时：25分钟 一、单词汉译英 1. 贡献 ________　　2. 实验 ________　　3. 猜想 ________ 4. 条件 ________　　5. 挑战 ________　　6. 成功的 ________ 7. 实现 ________　　8. 创造力 ________ 二、短语汉译英 1. 做实验 ____________　　2. 为……做贡献 ____________　　3. 面对挑战 ____________ 4. 梦想成真 ____________　　5. 依靠；取决于 ____________ 三、词形变换 1. experiment (n.) → ________ (v.做实验) 2. succeed (v.) → ________ (adj.成功的) 3. contribute (v.) → ________ (n.贡献) 4. create (v.) → ________ (n.创造力) 5. challenge (n.) → ________ (v.向……挑战) 一、语法单句填空（被动语态单元综合） 1. Many useful ideas ________ (turn) into inventions by creative people. 2. Lots of experiments ________ (do) by scientists every year. 3. This great contribution ________ (make) by the inventor years ago. 4. New conditions ________ (create) for new inventions these years. 5. Many hard challenges ________ (face) by those inventors in the old days. 二、句型转换（单元综合，主动被动互换，每空一词） 1. Creative people turn good ideas into inventions.（改为被动） → Good ideas ________ ________ into inventions by creative people. 2. Scientists do lots of experiments every year.（改为被动） → Lots of experiments ________ ________ by scientists every year. 3. The inventor made this great contribution.（改为被动） → This great contribution ________ ________ by the inventor. 4. People created new conditions for inventions.（改为被动） → New conditions ________ ________ for inventions by people. 5. Did people face many hard challenges?（改为被动一般疑问句） → ________ many hard challenges ________ by people? 三、选词填空 【experiment, contribute, challenge, succeed, creative 1. Scientists often do ________ to test new ideas. 2. Many inventors ________ a lot to our world. 3. Inventors have to meet different kinds of ________. 4. If you keep trying, you will ________ in the end. 5. ________ thinking helps people make new inventions. 四、情景补全对话（2项多余） A. What do you think makes a great inventor　　 B. What invention would you like to create　　 C. Why do you want to invent it D. It can help people solve this problem　　 E. Do you want to be an inventor　　 F. Did you invent anything before A: 1.________ B: I think a great inventor needs creative thinking and courage to face challenges. A: That’s true. 2.________ B: I would like to invent a new kind of robot. A: Sounds wonderful! 3.________ B: Because many old people need help in daily life. 4.________ Passage1 单元主题精读 　　Great inventions do not come easily. Many ideas are turned into real inventions by creative inventors. Lots of experiments are done again and again. Different challenges are faced on the way. Some experiments fail many times, but inventors never give up. Great contributions are made by these people. Their dreams finally come true. Creative thinking and hard work are the keys to new inventions. 任务一：单项选择 1. What is the key to new inventions? A. Money only B. Creative thinking and hard work C. Good luck only D. Big houses 2. What do inventors meet on their way? A. No difficulties at all B. Different challenges C. Lots of free time D. Much money 任务二：简答 1. Why don’t great inventions come easily? _______________________________________________________________________________ Passage2 素养拓展阅读 　　Everyone can have creative ideas. Not everyone can become a great inventor, but we can learn from inventors. When we meet challenges, we should not give up. Experiments may fail many times, but failure can teach us lessons. If we keep trying, our dreams may come true one day. We can make small contributions to our world with our own ideas. 任务一：单项选择 1. What can failure teach us? A. Nothing at all B. Useful lessons C. To give up quickly D. To stop thinking 2. What can we do even if we are not great inventors? A. Never think B. Make small contributions with our ideas C. Do nothing D. Only wait for inventions 任务二：判断正误(T/F) 1. Great inventions come easily without any difficulty. (  ) 2. We should not give up when we meet challenges. (  ) 任务三：简答 1. What should we do when experiments fail? _______________________________________________________________________________ 任务四：单元总结微写作（2‑3句） 1. Write what you learn from inventors. _______________________________________________________________________________ _______________________________________________________________________________ _______________________________________________________________________________ 【答案与解析卷】 夯实基础（必做） 一、单词汉译英【答案】 1. contribute　　2. experiment　　3. suppose 4. condition　　5. challenge　　6. successful 7. achieve / realize　　8. creativity 二、短语汉译英【答案】 1. do experiments　　2. contribute to... / make a contribution to...　　3. face challenges 4. dreams come true　　5. depend on 三、词形变换【答案+详细解析】 1. experiment 解析：experiment 可兼作名词和动词，名词意为“实验”，动词同样为experiment，意为“做实验”，零变形。 2. successful 解析：动词succeed（成功），形容词形式为successful，固定搭配be successful in (doing) sth.（在……方面成功）。 3. contribution 解析：动词contribute（贡献），名词变形为contribution，常用短语make a contribution to。 4. creativity 解析：动词create（创造），名词“创造力”为creativity；creative 为形容词“有创造力的”，注意区分词性。 5. challenge 解析：challenge 兼作名词“挑战”和动词“向……挑战”，无需变形。 能力进阶（必做） 一、语法单句填空（被动语态单元综合）【答案+详细解析】 核心考点：一般现在时被动语态、一般过去时被动语态（be + done） 1. are turned 解析：主语ideas（复数）与turn为被动关系；本句表常态、客观事实，用一般现在时被动语态：are + 过去分词turned。 2. are done 解析：主语experiments（复数）与do是被动；every year 表经常性动作，一般现在时被动，填are done。 3. was made 解析：时间状语years ago（多年前）为过去时间；单数contribution与make被动，一般过去时被动：was made。 4. are created 解析：these years 表现阶段持续状态，主语conditions为复数，与create被动，用一般现在时被动are created。 5. were faced 解析：in the old days（过去）为过去时间；challenges复数，与face被动，一般过去时被动were faced。 二、句型转换（主动被动互换）【答案+详细解析】 1. are turned 解析：一般现在时主动变被动。主语ideas复数，be动词用are，turn过去分词turned。 2. are done 解析：every year 一般现在时，复数主语，be动词are，do过去分词done。 3. was made 解析：原句made为一般过去时，单数主语，be动词was，make过去分词made。 4. were created 解析：原句created为一般过去时，复数conditions，be动词were，create过去分词created。 5. Were; faced 解析：一般过去时被动一般疑问句。复数主语提前Were，动词用过去分词faced。 三、选词填空【答案+详细解析】 答案：1. experiments 2. contribute 3. challenges 4. succeed 5. Creative 解析： 1. experiments：do experiments 固定搭配“做实验”，常用复数。 2. contribute：contribute to our world 为世界做贡献，主谓一致原形。 3. challenges：different kinds of + 复数名词，各种各样的挑战。 4. succeed：will 后接动词原形，succeed in the end 最终成功。 5. Creative：creative thinking 创造性思维，形容词修饰名词，首字母大写。 四、情景补全对话【答案+详细解析】 答案：1.A 2.B 3.C 4.D；多余项：E、F 逐空解析： 1空：答语回答“伟大的发明家需要创造性思维和直面挑战的勇气”，对应问句A：什么造就伟大的发明家。 2空：答语回答“我想发明一种新型机器人”，对应问句B：你想发明什么东西。 3空：答语用Because解释原因，对应问句C：你为什么想发明它。 4空：承接前文“老人生活需要帮助”，D选项补充发明的作用：它可以帮助人们解决这个问题，逻辑闭环。 拓展提高（选做） Passage1 单元主题精读【答案+超详解析】 任务一 单项选择 1. B　　2. B 详细解析： 1. 细节题。定位文章最后一句“Creative thinking and hard work are the keys to new inventions.”可知：创造性思维和努力是发明的关键，ACD均无依据。 2. 细节题。定位原文“Different challenges are faced on the way.”可知发明家路上会遇到各种各样的挑战，其余选项与原文完全相反。 任务二 简答答案+解析 Answer: Because inventors need to do lots of experiments repeatedly and face different kinds of challenges, and they may fail many times. 解析：根据原文可知，发明来之不易，需要反复实验、直面挑战、承受多次失败，整合原文要点即可作答。 Passage2 素养拓展阅读【答案+超详解析】 任务一 单项选择 1. B　　2. B 详细解析： 1. 细节题。定位原文“failure can teach us lessons”可知失败能教会我们有用的经验教训，选B。 2. 细节题。根据文末“We can make small contributions to our world with our own ideas.”可知普通人也可以用自己的想法做出微小贡献。 任务二 判断正误 1. F　　2. T 详细解析： 1. 原文第一句“Great inventions do not come easily.”说明伟大的发明来之不易，题干表述错误。 2. 原文“When we meet challenges, we should not give up.”可知面对挑战我们不应放弃，题干正确。 任务三 简答答案+解析 Answer: We should learn lessons from failure and keep trying. 解析：根据文章内容，实验失败时，我们要汲取教训、坚持尝试，永不放弃，贴合主旨作答。 任务四：单元总结微写作（范文+解析） 范文 I learn a lot from great inventors. They have creative thinking and never give up when facing challenges. Their hard work encourages me to keep trying and make progress in my life. 学科网（北京）股份有限公司 $