Unit 5 Section A 2a-3d （课时分层练）英语新教材人教版九年级上册

**基本信息** 分层清晰，从基础巩固到思维拔高再到中考衔接，覆盖词汇、句型、语篇，提升语言能力与思维品质。 **分层设计** |层次|知识覆盖|设计特色| |----|----------|----------| |A组|基础词汇（如“打印机”“塑料的”）、核心句型（被动语态、固定搭配）|单词拼写、完成句子等题型强化基础，单项选择聚焦语法应用| |B组|语篇理解与综合运用|补全对话训练交际能力，完形填空（爱迪生发明故事）融合词汇与语境理解| |C组|阅读分析与思维拓展|阅读单选（共享雨伞、智能发明）考查细节理解与主旨归纳，提升思维品质| |拓展|中考真题对接|选用2024西宁中考补全对话题，衔接测评需求，培养应试能力|

Unit 5 Power of Ideas Section A 2a-3d（分层作业）（解析版） A组 巩固过关 C组 思维拔高 B组 能力进阶 拓展 链接中考 一、单词拼写 1. You need to connect your 　　　　　　　　 (打印机) to your computer. 【答案】printer 【解析】句意：你需要把你的打印机连接到你的电脑上。形容词性物主代词your后面需要接名词，结合中文提示“打印机”，因此填printer。 2. Using too many 　　　　　　　　 (塑料的) products is harmful to our environment. 【答案】plastic 【解析】句意：使用太多塑料制品对我们的环境有害。此处需要形容词作定语修饰后面的products，用来表示物品的材质，中文提示“塑料的”对应plastic。plastic products表示“塑料制品”。 3. Please save the 　　　　　　　　 (文件) before you close the computer. 【答案】file 【解析】句意：请在关闭电脑之前保存文件。“文件”在计算机术语中对应的英文单词是file，特指电脑中的文档、图片等数据文件。 4. This natural 　　　　　　　　 (材料) is safe enough to make children’s toys. 【答案】material 【解析】句意：这种天然材料足够安全，可以用来制作儿童玩具。中文提示“材料”对应名词material；指示代词This后接单数可数名词，谓语动词is也提示主语为单数，故填material。 5. People 　　　　　　　　 (全世界) love this new invention. 【答案】all over the world 【解析】句意：全世界的人们都喜爱这项新发明。“all over the world”是固定短语，意为“全世界”，在句中作后置定语修饰people。 6. What is that strange o　　　　　　　　 (物体)? 【答案】object##bject 【解析】句意：那个奇怪的物体是什么？object“物体”，句中使用is和that，后面名词用单数形式。 7. We should pay attention to the 　　　　　　　　 (develop) of our reading skills. 【答案】development 【解析】句意：我们应该关注我们阅读技能的发展。develop“发展”，动词，此处位于定冠词the之后、介词of之前，应用名词形式作宾语；其名词形式为development。 二、完成句子 1. 我们的邮件可以瞬间到达别人那里，并且我们可以在很短的时间内得到回复。 Our emails can reach others 　　　　　　　　 　　　　　　　　 　　　　　　　　 and we can get a reply in a short time. 【答案】① in    ② a    ③ moment##second 【解析】根据中英文对照可知，此处缺少“瞬间”，用英文固定表达为in a moment/second；该短语在句中作状语，修饰动词reach，符合句子语境和语法要求。故填in；a；moment/second。 2. 物体是通过堆积塑料来制造的。 The object is 　　　　　　　　 by building up 　　　　　　　　. 【答案】① produced##made    ② plastic 【解析】原句中“制造”和“塑料”为关键词。第一空，“制造”对应的是动词“produce/make”，主语“The object”（物体）与动词“制造”之间是被动关系，空格前的is需加过去分词构成一般现在时的被动语态；动词produce的过去分词是produced，make的过去分词为made。第二空，“塑料”对应的是名词plastic，为不可数名词。 3. 这个发明是谁发明的？ Who 　　　　　　　　 this invention 　　　　　　　　 by? 【答案】① was    ② invented 【解析】根据中文可知，关键词“发明”对应的英文是invent；句末的介词“by”是被动语态的典型标志，表示“被……”，结构为be+过去分词。发明创造通常发生在过去，因此使用一般过去时。主语“this invention”是单数，一般过去时的be动词用was；动词invent的过去分词是invented。 4. 消息可以在几秒钟内传遍全球。    News could be 　　　　　　　　 around the world in 　　　　　　　　. 【答案】① spread    ② seconds 【解析】原句中“传遍”是关键词，被动语态中be动词后要用spread的过去分词spread。原句“几秒钟”对应单词seconds，in后直接接复数名词seconds即可。 5. 收音机对音乐也有很大的影响。    The radio also 　　　　　　　　 a big 　　　　　　　　 on music. 【答案】① has    ② effect 【解析】原句中“对……有影响”是关键词，“对……有影响”对应的英语常用短语是have an effect on，句子陈述客观事实，使用一般现在时，主语The radio是第三人称单数，因此谓语动词have需变为has。第二空：“影响”对应名词effect。 6. 工程师们需要先控制水流的速度，然后才能安全地在河上建造一座桥。 　　　　　　　　　　　　　　　　 before they could safely 　　　　　　　　　　　　　　　　. 【答案】① The engineers needed to control the speed of water flow first    ② build a bridge across the river 【解析】原句中“首先需要控制水流速度”和“在河上建桥”是关键词。before引导时间状语从句，主句在前，从句在后。从句中使用了情态动词过去式could，根据时态一致原则，主句也应使用过去时态。“需要”译为needed。need   to do sth“需要做某事”；主语“工程师们”译为the engineers，句首首字母大写，“先控制水流的速度”译为control the speed of water flow first，“建造一座桥”译为build a bridge，could后接动词原形。“在河上”译为across the river。 7. But 　　　　　　　　　 　　　　　　　　　 　　　　　　　　　, it was very difficult to travel far. 但在那时，远游是非常困难的。 【答案】① at    ② the##that    ③ time 【解析】原句中“在那时”是关键词，表示“在那时”的短语为at the time或at that time。 三、单项选择 1. Check what you have written ________ you hand in the paper. A. since B. after C. before D. while 【答案】C 【解析】句意：在你上交试卷之前检查一下你写的内容。 since自从；after在……之后；before在……之前；while当……时候。根据常识，检查试卷应在上交之前完成，应填before。 2. The paper in the office ________ by this local factory last year. A. produces B. were produced C. was produced D. will be produced 【答案】C 【解析】句意：办公室里的纸去年由这家当地工厂生产。 考查被动语态。produces生产，动词三单；were produced被生产，一般过去时被动语态，复数；was produced被生产，一般过去时被动语态，单数；will be produced将被生产，一般将来时被动语态。主语“The paper”为不可数名词，视为单数；时间状语“last year”表明动作发生在过去；且纸是被工厂生产的，需用一般过去时的被动语态（was/were + 过去分词），主语单数用was。故选C。 3. Which of the following words can’t form a noun by adding the suffix -ist? A. invent B. tour C. art D. piano 【答案】A 【解析】句意：以下哪个单词不能通过添加后缀-ist构成名词？ 考查名词后缀。invent发明→inventist（×，正确应为inventor）；tour旅游→tourist旅行者；art艺术→artist艺术家；piano钢琴→pianist钢琴家。其中invent加-ist不是标准构词，常用后缀为-or构成inventor。故选A。 4. — Lucy, what’s your father doing right now? — ________. He is just watching a football game on TV. A. Nothing much B. No problem C. Never mind D. Well done 【答案】A 【解析】句意：——露西，你爸爸现在在做什么？——没什么。他只是在看电视上的足球比赛。 考查情景交际。Nothing much没什么；No problem没问题；Never mind没关系；Well done做得好。根据“He is just watching a football game on TV.”可知，父亲只是在看电视上的足球比赛，即父亲没做什么重要的事情。故选A。 5. —She used to have long straight hair, but now she’s got short curly hair. —________! A. Thanks B. Good idea C. Don’t worry D. People sure change 【答案】D 【解析】句意：——她过去留着又长又直的头发，但现在她留着短卷发。——人确实会变啊！ 考查情景交际。Thanks谢谢；Good idea好主意；Don’t worry别担心；People sure change人确实会变。根据“She used to have long straight hair, but now she’s got short curly hair.”可知，此句描述了某人的外貌变化（从长直发变为短卷发），因此回应需表达对变化的认同或感叹，“People sure change”符合情景。故选D。 6. The telephone ________ in 1876. A. invent B. invented C. was invented D. is invented 【答案】C 【解析】句意：电话是在1876年被发明的。 invent动词原形；invented过去式或过去分词；was invented一般过去时的被动语态；is invented一般现在时的被动语态。根据句意可知，主语The telephone与动词invent构成被动关系，并且in 1876是过去的时间，应用一般过去时的被动语态。故选C。 7. — ________ do you spell your name? — E-L-L-A, Ella. A. What B. How C. Who D. When 【答案】B 【解析】句意：——你怎样拼写你的名字？——E-L-L-A，埃拉。 What什么；How怎样；Who谁；When何时。根据答语“E-L-L-A, Ella.”可知，此处问的是如何拼写，how do you spell …为固定句型，询问如何拼写单词，符合语境。 8. As one of the world’s favourite ________, there are over 2,000 kinds of tea ________ in China. A. drink; at all B. drinks; in all C. looks; after all D. members; of all 【答案】B 【解析】句意：作为世界上最受欢迎的饮料之一，中国总共有2000多种茶。 考查名词和介词短语。drink“饮料”，名词；at all“全然，根本，究竟”；in all“总计”；after all“毕竟”；of all“在所有……中”。根据“As one of the world’s favourite”可知，one of后接名词复数，意为“……之一”；再根据“there are over 2,000 kinds of tea ... in China.”可知，中国总共有2000多种茶，第二空应用in all。故选B。 一、补全对话 根据对话内容，从选项中选出能填入空白处的最佳选项，其中有两个为多余选项。 A: What are you doing, Lin? B: I’m doing the housework. I’m really tired of it. A: 　　　　1　　　　 It’s pretty boring. B: Well, I hope a robot can help us with housework in the future. 　　　　2　　　　 A: Of course! It’s a nice dream, and I’m sure it can come true one day. B: 　　　　3　　　　 A: Because I read something about Astribot S1 a few days ago. B: Astribot S1? 　　　　4　　　　 A: It’s a robot, and it’s good at doing the housework. B: Really? 　　　　5　　　　 A: It can make tea, cook food, feed pets, do the cleaning, and so on. B: Sounds like a really great helper. A. Me, too. B. What is it? C. What can it do? D. Can my dream come true? E. Why are you so sure about that? F. The robot can save us a lot of time. G. We have to help around the house every day. 【答案】1. A     2. D     3. E     4. B     5. C      【解析】本文是A和B关于家务和未来机器人帮助做家务的对话。B在做家务时感到厌倦，A表示同感，随后两人讨论了机器人做家务的梦想，A分享了他了解的Astribot S1机器人的功能。 (1)题： A说“What are you doing, Lin?” B回答在做家务并表达厌倦。A的回应应先表示同感，再补充评价“It’s pretty boring.”。选项A“Me, too.”直接表明A也有同感，使对话自然衔接。 (2)题： B表达希望机器人帮忙做家务后，需要询问A对此的看法，以便A给出肯定回答。选项D“Can my dream come true?”正是B的疑问，A用“Of course!”直接回应，逻辑连贯。 (3)题： A肯定梦想能成真后，B追问原因，A才引出关于Astribot S1的信息。选项E“Why are you so sure about that?”恰好是询问原因，与A的回答“Because...”紧密相连。 (4)题： B听到Astribot S1这个新名词，自然想知道它是什么。选项B“What is it?”正是询问名称所指，A随后解释它是一个机器人，符合问答逻辑。 (5)题： B得知Astribot S1是机器人后，进一步好奇它的功能。选项C“What can it do?”直接询问能力，A列举了它能做的家务，对话推进合理。 二、选词填空 根据句意，从方框中选择适当的单词或短语，并用其正确形式填空。 hundreds of   sunglasses   camera   plastic 1. My sister borrowed my 　　　　　　　　 to take photos at the school talent show. 2. He put on his 　　　　　　　　 to protect his eyes from the bright summer sun. 3. We should try to use fewer 　　　　　　　　 bags to help protect the environment. 4. 　　　　　　　　 students gathered on the playground to watch the basketball game. 【答案】1. camera     2. sunglasses     3. plastic     4. Hundreds of      【解析】(1)题： 句意：我姐姐借了我的相机，要在学校才艺表演上拍照。根据短语“take photos”可知，此处应填名词camera，意为“相机”，符合语境。 (2)题： 句意：他戴上他的太阳镜以保护眼睛，免受夏日强烈阳光的伤害。根据“protect his eyes”和“sun”可知，此处应填sunglasses，意为“太阳镜”，符合语境。 (3)题： 句意：我们应该尽量少用塑料袋来帮助保护环境。根据关键词“protect the environment”和“bags”可知，此处指塑料袋，plastic“塑料的”在此作定语修饰bags，plastic bags表示塑料袋，符合语境。 (4)题： 句意：数百名学生聚集在操场上观看篮球比赛。此处缺少表示数量的短语修饰students，hundreds of意为“数百的”，位于句首单词首字母大写，填Hundreds of，符合语境。 三、完形填空 My love of building things began when I was a kid. I really didn’t become excited about inventing until I 　　　1　　　 about Thomas Edison, though. When I was in fourth grade, our teacher gave us a 　　　2　　　. We had to write to a company and learn about the products it made. Each student would then give a report in front of the class. I 　　　3　　　 the Thomas A. Edison Company. Soon after I wrote to the company, our postman 　　　4　　　 a package (包裹) to me. It contained a book about the life of Thomas Edison. How I 　　　5　　　 reading and rereading about his inventions! The ones that 　　　6　　　 me most were movies and recorded sound. Edison became my hero. My dad noticed my interest in inventing and 　　　7　　　 me. He showed me how to turn my ideas into plans and, finally, into new things. Together, my dad and I repaired radios and televisions. Once, I made a(n) 　　　8　　　 to adjust (调整) the brakes (刹车片) of our car. This surprised my dad so much. Later, we found a 　　　9　　　 tool in a store. That’s when I learnt that 　　　　　10　　　　　 inventors often invent similar things. It is 　　　　　11　　　　　 for this to happen. I learnt that not all great ideas work, too. Failure (失败) is a common part of the inventing 　　　　　12　　　　　. As my father and I worked together, I began to 　　　　　13　　　　　 that my dad was quite an inventor himself. His guiding hands, together with my 　　　　　14　　　　　 in inventing, led me to become an engineer and inventor. But I also thank Thomas Edison 　　　　　15　　　　　 first lighting that bulb (电灯泡) inside me. 1. A. cared B. worried C. heard D. called 2. A. project B. lesson C. surprise D. present 3. A. joined B. owned C. started D. chose 4. A. opened B. received C. sent D. lent 5. A. enjoyed B. minded C. avoided D. hated 6. A. alarmed B. interested C. controlled D. scared 7. A. recognized B. doubted C. comforted D. encouraged 8. A. tool B. idea C. mistake D. trick 9. A. daily B. similar C. valuable D. popular 10. A. young B. different C. famous D. real 11. A. improper B. unlucky C. impolite D. usual 12. A. situation B. movement C. process D. exam 13. A. hope B. remember C. realize D. consider 14. A. honor B. difficulty C. experience D. interest 15. A. for B. with C. of D. as 【答案】1. C     2. A     3. D     4. C     5. A     6. B     7. D     8. A     9. B     10. B     11. D     12. C     13. C     14. D     15. A      【解析】本文是一篇记叙文。讲述了作者从小喜爱动手制作，受爱迪生启发、父亲悉心鼓励，最终成长为工程师与发明家的成长经历。 (1)题： 句意：不过，直到我听说托马斯·爱迪生的事迹，我才对发明感到兴奋。 cared关心；worried担心；heard听说；called打电话。根据前文“My love of building things began when I was a kid.”及后文提到作者了解爱迪生后才对发明感到兴奋可知，此处表达的是听说爱迪生的事迹，heard“听说”符合语境。 (2)题： 句意：当我上四年级时，老师给了我们一个项目。 project项目；lesson课；surprise惊喜；present礼物。根据后文“We had to write to a company and learn about the products it made. Each student would then give a report ...”可知，老师布置了一项需要写信、调查并做报告的任务，这属于一个项目，project“项目”符合语境。 (3)题： 句意：我选择了托马斯·爱迪生公司。 joined加入；owned拥有；started开始；chose选择。根据“Each student would then give a report in front of the class.”以及前文“We had to write to a company ...”可知，作者是在众多公司中选择了爱迪生公司，chose“选择”符合语境。 (4)题： 句意：在我给公司写信后不久，我们的邮递员就给我送来了一个包裹。 opened打开；received收到；sent寄，送；lent借出。根据句意及后文“It contained a book ...”可知，邮递员的作用是将包裹寄送给作者，sent“发送，寄”符合语境。 (5)题： 句意：我是多么喜欢一遍又一遍地阅读关于他的发明的故事啊！ enjoyed喜欢；minded介意；avoided避免；hated讨厌。根据前文“Edison became my hero.”可知，作者非常崇拜爱迪生，因此对阅读他的故事感到非常喜欢，enjoyed“喜欢”符合语境。 (6)题： 句意：最让我感兴趣的是电影和录音。 alarmed使惊恐；interested使感兴趣；controlled控制；scared使害怕。根据“Edison became my hero.”可知，电影和录音是最让他感兴趣的，interested“使感兴趣”符合语境。 (7)题： 句意：我爸爸注意到了我对发明的兴趣并鼓励了我。 recognized认出；doubted怀疑；comforted安慰；encouraged鼓励。根据后文“He showed me how to turn my ideas into plans ...”可知，父亲不仅注意到了，还教作者如何将想法变成计划，这是在鼓励他，encouraged“鼓励”符合语境。 (8)题： 句意：有一次，我做了一个工具来调整我们汽车的刹车片。 tool工具；idea主意；mistake错误；trick诡计。根据后文“Later, we found a ... tool in a store.”可知，作者当时是自己动手制作了一个工具来调整刹车片，tool“工具”符合语境。 (9)题： 句意：后来，我们在一家商店里发现了一个类似的工具。 daily日常的；similar相似的；valuable有价值的；popular受欢迎的。根据“That’s when I learnt that ... inventors often invent similar things.”可知，商店里卖的也是相似的工具，similar“相似的”符合语境。 (10)题： 句意：那时我才知道，不同的发明家经常会发明出相似的东西。 young年轻的；different不同的；famous著名的；real真实的。根据“Later, we found a similar tool in a store.”可知，是不同的发明家想到了同样的点子，different“不同的”符合语境。 (11)题： 句意：这种情况发生是很常见的。 improper不适当的；unlucky不幸的；impolite不礼貌的；usual通常的，常见的。根据前文“different inventors often invent similar things”可知，不同的人发明出相似的东西是常见的现象，usual“常见的”符合语境。 (12)题： 句意：失败也是发明过程中常见的一部分。 situation情况；movement运动；process过程；exam考试。根据前文“I learnt that not all great ideas work, too.”可知，作者在发明和尝试的过程中体会到了失败，因此失败是发明过程的一部分，process“过程”符合语境。 (13)题： 句意：当我和父亲一起工作时，我开始意识到我父亲本身就是一个相当出色的发明家。 hope希望；remember记得；realize意识到；consider考虑。根据“As my father and I worked together”以及前文父亲教作者把想法变成计划、一起修理电器等经历可知，作者在这个过程中意识到了父亲的厉害之处，realize“意识到”符合语境。 (14)题： 句意：他指导的双手，加上我对发明的兴趣，使我成为了一名工程师和发明家。 honor荣誉；difficulty困难；experience经验；interest兴趣。根据前文“My dad noticed my interest in inventing ...”可知，一直贯穿始终的是作者对发明的兴趣，interest“兴趣”符合语境。 (15)题： 句意：但我也感谢托马斯·爱迪生，是他第一次点亮了我心中的那盏灯泡。 根据“But I also thank Thomas Edison …”可知，thank sb. for doing sth.“因某事感谢某人”，此处表示感谢爱迪生点亮了作者心中的灯泡，for“因为”符合语境。 一、阅读单选 A篇 The power of a small idea can be surprising. Take the story of the “shared umbrella”. A young designer noticed that people often got wet on rainy days because they forgot umbrellas. She thought: “Why not put umbrellas in stations for anyone to use?” With this simple idea, she designed a smart lock and an app. Now, thousands of shared umbrellas help passengers every day.    Another example is the “blind walking stick with eyes”. An engineer’s friend was visually impaired. He invented a stick that uses sound to tell the user about obstacles. This small change brought great independence to many blind people.    Ideas like these show that inventions don’t always need huge labs. They start with noticing a problem and daring to think differently. As one inventor said, “The world is changed by people who see what others don’t.” 1. What inspired the shared umbrella idea? A. People often got wet on rainy days. B. A friend’s blindness. C. A smart phone app. D. A train station. 2. The underlined word “passengers” probably means ________. A. 乘客 B. 司机 C. 设计师 D. 工程师 3. What does the blind walking stick use to help the user? A. Light. B. Sound. C. Smell. D. Heat. 4. According to the passage, where do inventions often start? A. In huge labs. B. With noticing a problem. C. From foreign countries. D. By copying others. 5. What is the best title for the passage? A. How to Make Umbrellas B. The Power of Small Ideas C. Rainy Days Trouble D. Blind People’s Life 【答案】1. A     2. A     3. B     4. B     5. B      【解析】本文通过共享雨伞、带“眼睛”的智能盲杖两个生活化的小发明案例，说明创意不需要依托大型实验室，留意身边问题、敢于创新的小想法也能带来巨大的正向改变，印证了小创意拥有惊人的力量。 (1)题： 根据第一段“A young designer noticed that people often got wet on rainy days because they forgot umbrellas…Now, thousands of shared umbrellas help passengers every day.”可知，年轻设计师是注意到人们忘带雨伞常在雨天被淋湿的现象，由此萌生了共享雨伞的想法。 (2)题： 前文“Why not put umbrellas in stations for anyone to use?”提到共享雨伞投放在车站，车站场景下的核心受益人群就是往来的乘车人员，可知“passengers”对应中文词义“乘客”。 (3)题： 根据第二段“He invented a stick that uses sound to tell the user about obstacles.”可知，这款盲杖利用声音来告知使用者前方的障碍物。 (4)题： 根据第三段“Ideas like these show that inventions don’t always need huge labs. They start with noticing a problem and daring to think differently.”可知，点明这类发明不需要依托大型实验室，它们的起点是发现问题、敢于换角度思考。 (5)题： 全文开篇点明小想法的力量十分惊人，后续所有案例与论述都围绕该核心主题展开，故选项B“小想法的力量”最能概括全文主旨。 B篇 Smart Inventions in Our Daily Life Technology has brought us many smart inventions that make our lives easier. Two of them are Super See and Smart Cook. Super See is a pair of sunglasses designed to protect people’s eyes. But it does more than that. A mini-camera is connected to Super See, which helps people read. When you wear Super See, the camera can scan text and read it aloud to you. This is very helpful for people who have difficulty seeing. Smart Cook is a smart cooking machine. It can cook hundreds of kinds of dishes. To use Smart Cook, you just need to press a button, and it will cook the food automatically. The food is added by Smart Cook itself, so you don’t need to worry about the ingredients. This invention is especially popular with busy people who don’t have time to cook. Both Super See and Smart Cook show how creative ideas can improve our daily lives. They were invented by ordinary people who wanted to solve everyday problems. 1. What is Super See designed to do? A. To take photos. B. To protect people’s eyes. C. To cook food. D. To send messages. 2. What helps Super See read text aloud? A. A button. B. A speaker. C. A mini-camera. D. A computer. 3. How many kinds of dishes can Smart Cook cook? A. Tens of kinds. B. Hundreds of kinds. C. Thousands of kinds. D. Millions of kinds. 4. Who is Smart Cook especially popular with? A. Professional chefs. B. Blind people. C. Busy people. D. Old people. 5. What is the main idea of the passage? A. Technology can make our lives more difficult. B. Inventions can solve everyday problems and improve our lives. C. Only scientists can invent new things. D. Smart Cook is more useful than Super See. 【答案】1. B     2. C     3. B     4. C     5. B      【解析】本文介绍了两项便捷发明：Super See眼镜可扫描朗读文字，帮助视障人士；Smart Cook自动烹饪机可一键做菜，节省时间，两者都源于普通人解决日常问题的创意，改善了生活。 (1)题： 第二段第一句“Super See is a pair of sunglasses designed to protect people’s eyes.”表明，Super See这款墨镜设计初衷是为了保护人们的眼睛。 (2)题： 第二段中的句子“A mini-camera is connected to Super See, which helps people read. When you wear Super See, the camera can scan text and read it aloud to you.”表明，是连接在眼镜上的迷你摄像头帮助扫描文本并朗读出来。 (3)题： 第三段第二句“It can cook hundreds of kinds of dishes.”表明，Smart Cook可以烹饪数百种菜肴。 (4)题： 第三段最后一句“This invention is especially popular with busy people who don’t have time to cook.”表明，这项发明特别受那些没时间做饭的忙碌人群欢迎。 (5)题： 通读全文，结合第一段首句“Technology has brought us many smart inventions that make our lives easier.”以及最后一段第一句“Both Super See and Smart Cook show how creative ideas can improve our daily lives.”表明，文章主要通过两个发明实例说明了科技发明能够解决日常问题并改善我们的生活。 一、补全对话 （来源:2024年青海省西宁市区中考英语真题）七选五，补对话。 Have you been to the Science and Technology Museum recently?       　　　1　　　 There was a “Teens and Inventions” fair. Oh! Any special things?    　　　2　　　 It’s surprising that they were all invented by university students.    Amazing! 　　　3　　　 A solar-powered car.    Why?    　　　4　　　 It saves money and protects the environment, too. Wow! The students always come up with creative ideas. So they do. They usually work in groups to make their ideas come true with teachers’ help.    Hmm! 　　　5　　　 Two heads are smarter than one! A. Which do you like best? B. Yes. I went there last week. C. Teamwork is pretty important. D. Because it is powered by the solar energy (太阳能) and runs longer. E. Yes. I will go there tomorrow. F. Of course! Some new ones opened my eyes. G. Because the solar-powered car is very expensive. 【答案】1. B     2. F     3. A     4. D     5. C      【解析】本文是一则谈论在科技博物馆举办的“青少年与发明”展览会的情况的对话。 (1)题： 根据下文“There was a ‘Teens and Inventions’ fair.”可知，去过科技馆；选项B“是的。我上周去了那里。”符合情景。故选B。 (2)题： 根据上文“Oh! Any special things?”和下文“It’s surprising that they were all invented by university students.”可知，是有一些特别的事物；选项F“当然！一些新的让我大开眼界。”符合情景。故选F。 (3)题： 根据下文“A solar-powered car.”可知，此处是问最喜欢的发明是什么；选项A“你最喜欢哪一个？”符合情景。故选A。 (4)题： 根据上文“Why?”可知，此处是阐述原因；再根据“It saves money and protects the environment, too. ”可知，原因与太阳能汽车的优点相关；选项D“因为它是由太阳能驱动的，运行时间更长。”符合情景。故选D。 (5)题： 根据下文“Two heads are smarter than one!”可知，三个臭皮匠胜过一个诸葛亮，说明了团队合作的重要性；选项C“团队合作非常重要。”符合情景。故选C。 1 / 6 学科网（北京）股份有限公司 $ Unit 5 Power of Ideas Section A 2a-3d（分层作业）（解析版） A组 巩固过关 C组 思维拔高 B组 能力进阶 拓展 链接中考 一、单词拼写 1. You need to connect your 　　　　　　　　 (打印机) to your computer. 2. Using too many 　　　　　　　　 (塑料的) products is harmful to our environment. 3. Please save the 　　　　　　　　 (文件) before you close the computer. 4. This natural 　　　　　　　　 (材料) is safe enough to make children’s toys. 5. People 　　　　　　　　 (全世界) love this new invention. 6. What is that strange o　　　　　　　　 (物体)? 7. We should pay attention to the 　　　　　　　　 (develop) of our reading skills. 二、完成句子 1. 我们的邮件可以瞬间到达别人那里，并且我们可以在很短的时间内得到回复。 Our emails can reach others 　　　　　　　　 　　　　　　　　 　　　　　　　　 and we can get a reply in a short time. 2. 物体是通过堆积塑料来制造的。 The object is 　　　　　　　　 by building up 　　　　　　　　. 3. 这个发明是谁发明的？ Who 　　　　　　　　 this invention 　　　　　　　　 by? 4. 消息可以在几秒钟内传遍全球。    News could be 　　　　　　　　 around the world in 　　　　　　　　. 5. 收音机对音乐也有很大的影响。    The radio also 　　　　　　　　 a big 　　　　　　　　 on music. 6. 工程师们需要先控制水流的速度，然后才能安全地在河上建造一座桥。 　　　　　　　　　　　　　　　　 before they could safely 　　　　　　　　　　　　　　　　. 7. But 　　　　　　　　　 　　　　　　　　　 　　　　　　　　　, it was very difficult to travel far. 但在那时，远游是非常困难的。 三、单项选择 1. Check what you have written ________ you hand in the paper. A. since B. after C. before D. while 2. The paper in the office ________ by this local factory last year. A. produces B. were produced C. was produced D. will be produced 3. Which of the following words can’t form a noun by adding the suffix -ist? A. invent B. tour C. art D. piano 4. — Lucy, what’s your father doing right now? — ________. He is just watching a football game on TV. A. Nothing much B. No problem C. Never mind D. Well done 5. —She used to have long straight hair, but now she’s got short curly hair. —________! A. Thanks B. Good idea C. Don’t worry D. People sure change 6. The telephone ________ in 1876. A. invent B. invented C. was invented D. is invented 7. — ________ do you spell your name? — E-L-L-A, Ella. A. What B. How C. Who D. When 8. As one of the world’s favourite ________, there are over 2,000 kinds of tea ________ in China. A. drink; at all B. drinks; in all C. looks; after all D. members; of all 一、补全对话 根据对话内容，从选项中选出能填入空白处的最佳选项，其中有两个为多余选项。 A: What are you doing, Lin? B: I’m doing the housework. I’m really tired of it. A: 　　　　1　　　　 It’s pretty boring. B: Well, I hope a robot can help us with housework in the future. 　　　　2　　　　 A: Of course! It’s a nice dream, and I’m sure it can come true one day. B: 　　　　3　　　　 A: Because I read something about Astribot S1 a few days ago. B: Astribot S1? 　　　　4　　　　 A: It’s a robot, and it’s good at doing the housework. B: Really? 　　　　5　　　　 A: It can make tea, cook food, feed pets, do the cleaning, and so on. B: Sounds like a really great helper. A. Me, too. B. What is it? C. What can it do? D. Can my dream come true? E. Why are you so sure about that? F. The robot can save us a lot of time. G. We have to help around the house every day. 二、选词填空 根据句意，从方框中选择适当的单词或短语，并用其正确形式填空。 hundreds of   sunglasses   camera   plastic 1. My sister borrowed my 　　　　　　　　 to take photos at the school talent show. 2. He put on his 　　　　　　　　 to protect his eyes from the bright summer sun. 3. We should try to use fewer 　　　　　　　　 bags to help protect the environment. 4. 　　　　　　　　 students gathered on the playground to watch the basketball game. 三、完形填空 My love of building things began when I was a kid. I really didn’t become excited about inventing until I 　　　1　　　 about Thomas Edison, though. When I was in fourth grade, our teacher gave us a 　　　2　　　. We had to write to a company and learn about the products it made. Each student would then give a report in front of the class. I 　　　3　　　 the Thomas A. Edison Company. Soon after I wrote to the company, our postman 　　　4　　　 a package (包裹) to me. It contained a book about the life of Thomas Edison. How I 　　　5　　　 reading and rereading about his inventions! The ones that 　　　6　　　 me most were movies and recorded sound. Edison became my hero. My dad noticed my interest in inventing and 　　　7　　　 me. He showed me how to turn my ideas into plans and, finally, into new things. Together, my dad and I repaired radios and televisions. Once, I made a(n) 　　　8　　　 to adjust (调整) the brakes (刹车片) of our car. This surprised my dad so much. Later, we found a 　　　9　　　 tool in a store. That’s when I learnt that 　　　　　10　　　　　 inventors often invent similar things. It is 　　　　　11　　　　　 for this to happen. I learnt that not all great ideas work, too. Failure (失败) is a common part of the inventing 　　　　　12　　　　　. As my father and I worked together, I began to 　　　　　13　　　　　 that my dad was quite an inventor himself. His guiding hands, together with my 　　　　　14　　　　　 in inventing, led me to become an engineer and inventor. But I also thank Thomas Edison 　　　　　15　　　　　 first lighting that bulb (电灯泡) inside me. 1. A. cared B. worried C. heard D. called 2. A. project B. lesson C. surprise D. present 3. A. joined B. owned C. started D. chose 4. A. opened B. received C. sent D. lent 5. A. enjoyed B. minded C. avoided D. hated 6. A. alarmed B. interested C. controlled D. scared 7. A. recognized B. doubted C. comforted D. encouraged 8. A. tool B. idea C. mistake D. trick 9. A. daily B. similar C. valuable D. popular 10. A. young B. different C. famous D. real 11. A. improper B. unlucky C. impolite D. usual 12. A. situation B. movement C. process D. exam 13. A. hope B. remember C. realize D. consider 14. A. honor B. difficulty C. experience D. interest 15. A. for B. with C. of D. as 一、阅读单选 A篇 The power of a small idea can be surprising. Take the story of the “shared umbrella”. A young designer noticed that people often got wet on rainy days because they forgot umbrellas. She thought: “Why not put umbrellas in stations for anyone to use?” With this simple idea, she designed a smart lock and an app. Now, thousands of shared umbrellas help passengers every day.    Another example is the “blind walking stick with eyes”. An engineer’s friend was visually impaired. He invented a stick that uses sound to tell the user about obstacles. This small change brought great independence to many blind people.    Ideas like these show that inventions don’t always need huge labs. They start with noticing a problem and daring to think differently. As one inventor said, “The world is changed by people who see what others don’t.” 1. What inspired the shared umbrella idea? A. People often got wet on rainy days. B. A friend’s blindness. C. A smart phone app. D. A train station. 2. The underlined word “passengers” probably means ________. A. 乘客 B. 司机 C. 设计师 D. 工程师 3. What does the blind walking stick use to help the user? A. Light. B. Sound. C. Smell. D. Heat. 4. According to the passage, where do inventions often start? A. In huge labs. B. With noticing a problem. C. From foreign countries. D. By copying others. 5. What is the best title for the passage? A. How to Make Umbrellas B. The Power of Small Ideas C. Rainy Days Trouble D. Blind People’s Life B篇 Smart Inventions in Our Daily Life Technology has brought us many smart inventions that make our lives easier. Two of them are Super See and Smart Cook. Super See is a pair of sunglasses designed to protect people’s eyes. But it does more than that. A mini-camera is connected to Super See, which helps people read. When you wear Super See, the camera can scan text and read it aloud to you. This is very helpful for people who have difficulty seeing. Smart Cook is a smart cooking machine. It can cook hundreds of kinds of dishes. To use Smart Cook, you just need to press a button, and it will cook the food automatically. The food is added by Smart Cook itself, so you don’t need to worry about the ingredients. This invention is especially popular with busy people who don’t have time to cook. Both Super See and Smart Cook show how creative ideas can improve our daily lives. They were invented by ordinary people who wanted to solve everyday problems. 1. What is Super See designed to do? A. To take photos. B. To protect people’s eyes. C. To cook food. D. To send messages. 2. What helps Super See read text aloud? A. A button. B. A speaker. C. A mini-camera. D. A computer. 3. How many kinds of dishes can Smart Cook cook? A. Tens of kinds. B. Hundreds of kinds. C. Thousands of kinds. D. Millions of kinds. 4. Who is Smart Cook especially popular with? A. Professional chefs. B. Blind people. C. Busy people. D. Old people. 5. What is the main idea of the passage? A. Technology can make our lives more difficult. B. Inventions can solve everyday problems and improve our lives. C. Only scientists can invent new things. D. Smart Cook is more useful than Super See. 一、补全对话 （来源:2024年青海省西宁市区中考英语真题）七选五，补对话。 Have you been to the Science and Technology Museum recently?       　　　1　　　 There was a “Teens and Inventions” fair. Oh! Any special things?    　　　2　　　 It’s surprising that they were all invented by university students.    Amazing! 　　　3　　　 A solar-powered car.    Why?    　　　4　　　 It saves money and protects the environment, too. Wow! The students always come up with creative ideas. So they do. They usually work in groups to make their ideas come true with teachers’ help.    Hmm! 　　　5　　　 Two heads are smarter than one! A. Which do you like best? B. Yes. I went there last week. C. Teamwork is pretty important. D. Because it is powered by the solar energy (太阳能) and runs longer. E. Yes. I will go there tomorrow. F. Of course! Some new ones opened my eyes. G. Because the solar-powered car is very expensive. 1 / 6 学科网（北京）股份有限公司 $