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Unit 3 Make it happen! 写作专项学案
写作目标
结合本单元“发明与创新”主题，写一篇讲述发明故事、阐述好奇心对发明的推动作用或设计解决生活问题的发明方案的短文，达成以下目标：
1.能正确使用本单元“发明与探索”相关核心词汇（如invention、inventor、curiosity、3-D printer、artificial arm、problem、solution、improve、create、design、signal、weigh等）及短语（build...out of...、lend a hand to、work on、hit on success、come up with、be curious about、one after another、for free等）；
2.能熟练运用“to-infinitive”和“-ing形式”作宾语描述发明相关动作，掌握“What a...!”等感叹句型，正确使用“so...that...” “What’s worse...”等表达；
3.能按“发现问题→探索过程→成果/感悟”的逻辑完成写作，贴合“从问题出发，用创新解决问题”的单元主题。
题目解析
1.体裁：发明故事类记叙文、观点类短文或发明方案类应用文，兼具故事性与创新性；
2.人称：第一人称（分享发明想法、描述个人探索）或第三人称（讲述发明家故事）为主；
3.核心要求
内容：覆盖“1个核心发明/观点（具体发明/好奇心的重要性/发明方案）、2-3个关键细节（发明过程/支撑事例/方案设计）、1个创新感悟或实用价值”3个要点；
字数：80–100词，描述真实具体、观点明确或方案可行，语言符合八年级学生水平，体现对发明创新的理解与实践意识。
思路点拨
1.开头：明确引入核心主题（如“伊斯顿用3D打印技术发明平价假肢的故事令人敬佩” “好奇心是发明的源泉，推动人类探索未知” “我设计了一款智能水杯，解决忘记喝水的问题”），用简洁句式点明主题核心（如“他用创新帮助残障儿童，传递善意” “许多伟大发明都源于对世界的好奇” “这款水杯能提醒人们及时补水，实用又便捷”），用引导性语言引出下文；
2.中间：若讲述发明故事，按“发现问题→克服困难→获得成果”展开，用“to-infinitive”和“-ing形式”描述发明家的动作（如“Easton kept working on improving the arm” “He decided to post his design online”），体现发明过程的艰辛与坚持；若阐述好奇心的作用，聚焦“观点+事例”，用本杰明·富兰克林探索电、万户尝试飞天等事例，说明好奇心如何推动发明；若设计发明方案，围绕“问题描述→方案细节→实用价值”，说明发明的设计思路（如材质、功能）及解决的实际问题；
3.结尾：分享感悟（如“发明不是遥不可及的梦想，只要关注问题、坚持探索就能实现” “好奇心是创新的起点，我们要保持对世界的好奇” “小小的发明也能改善生活，我要继续尝试创新”）或表达行动意愿（如“我要向发明家学习，用创新解决身边的问题” “我会保持好奇心，探索更多未知领域” “我想进一步改进这款发明，让它帮助更多人”），呼应单元“Make it happen!”的核心主题，传递“勇于探索、敢于创新”的积极态度。
写作模板（逐段拆解）
模板一：讲述发明故事——伊斯顿的假肢发明（Easton’s Artificial Arm）
第一段：主题引入与问题发现
基础句式：Great inventions often start from small problems. Easton LaChappelle, a young inventor, created a useful invention after seeing others in trouble. His story shows that anyone can make a difference with creativity.
示例：Inventions don’t have to be complicated—they just need to solve real problems. Easton LaChappelle, a 14-year-old student, found his inspiration at a science fair when he met Jenny, a girl with an expensive artificial arm.
第二段：发明过程与细节
基础句式：Jenny’s arm cost $80,000, which blew Easton away. He decided to lend a hand to kids like her. He built a robotic arm out of plastic blocks first, then kept working on it. With a 3-D printer, he invented a lighter arm that could move with brain signals. It took him years, but he finally hit on success.
示例：Jenny’s simple hook arm cost $80,000, and what’s worse, kids like her needed new prosthetics as they grew. Easton thought, “I can make a cheaper one!” He started with plastic blocks and fishing line, then got a 3-D printer at 16. He spent years improving the design—fixing problems one after another. Finally, at 23, he made an arm that weighed only 0.5 kg and cost $500.
第三段：成果影响与感悟
基础句式：Easton didn’t want to make money from his invention. He posted the design online for free, so people could download it and make arms for kids in need. What a helpful invention! His story teaches us that we should always try to solve problems with creativity.
示例：The best part Easton posted his design online for free. Families could use 3-D printers to make the arm for their kids. He said, “Helping others is better than making money.” His story tells me that invention is not just about creating—It’s about using skills to help people. I want to learn from him and turn small ideas into useful things.
模板二：阐述好奇心的力量（The Power of Curiosity）
第一段：主题引入与观点提出
基础句式：Curiosity is the key to invention. Many great inventors started with a simple question: “Why ” It’s this desire to know that pushes them to explore and create. Without curiosity, there would be few amazing inventions.
示例：Albert Einstein once said, “I have no special talents. I am only passionately curious.” This sentence tells us how important curiosity is for invention—It’s the starting point of all great ideas.
第二段：事例支撑与细节
基础句式：Benjamin Franklin was curious about electricity. He did many experiments, like flying a kite in a storm, and finally invented the lightning rod. Wan Hu was so curious about space that he created a “flying chair” to explore the sky. These examples show that curiosity drives people to invent.
示例：Benjamin Franklin was drawn to electricity—he kept asking “How does it work ” He did experiments, even flying a kite in a storm, and invented the lightning rod to protect buildings. Zhang Heng was curious about the earth’s movements, so he studied the sky for years and made the first earthquake detector. Their curiosity turned into life-changing inventions.
第三段：观点总结与启示
基础句式：Curiosity makes us ask questions and try new things. As students, we should stay curious about the world around us. It might lead us to create something amazing one day—after all, every invention starts with a “why.”
示例：Curiosity isn’t just about asking questions—it’s about wanting to find answers. It makes us keep trying, even when experiments fail. I’m curious about how plants grow, so I’ve been doing small experiments at home. Who knows Maybe my curiosity will lead to an invention too!
模板三：设计发明方案——智能提醒水杯（Smart Reminder Cup）
第一段：主题引入与问题提出
基础句式：We all face small problems in life that need clever solutions. I often forget to drink water during study, which makes me feel tired. So I want to design a smart cup to solve this problem.
示例：Many students like me forget to drink water when busy with homework. Sometimes we even feel thirsty but don’t notice—this is bad for our health. That’s why I want to create a “Smart Reminder Cup” to help people drink enough water.
第二段：发明设计与细节
基础句式：My smart cup will be made of safe plastic. It has a small sensor that can tell how much water is left. When the cup is empty for 2 hours, it will make a soft beep to remind you to fill it. It’s light and easy to carry, so you can take it to school or home.
示例：The cup will be made of light, durable plastic—easy for students to carry. It has two key parts: a sensor and a small speaker. The sensor checks the water level; if you haven’t refilled it for 2 hours, the speaker makes a soft “beep” to remind you. You can also connect it to your phone to see how much water you’ve drunk.
第三段：实用价值与展望
基础句式：This cup is simple but useful. It helps people form a good habit of drinking water. I hope to improve it later—maybe add a temperature sensor to keep water warm. Small inventions like this can make our lives better!
示例：This smart cup doesn’t cost much but solves a common problem. It will help students, office workers, even grandparents remember to drink water. I plan to test it with my family first, then change small parts to make it better. I believe this invention can make daily life easier—after all, great ideas start with solving small problems!
范文
A Small Invention for My Grandpa
My grandpa often forgets to take his medicine on time. This makes my family worried, so I decided to design a “Medicine Reminder Box” to help him.
The box is made of wood—simple and safe. It has three small parts: a clock, a light and a speaker. Every morning at 8, the clock rings, the light turns on, and the speaker says, “Grandpa, take your medicine!” I even pasted photos of our family on the box to make it warm.
My grandpa loves this box! He never misses his medicine now. This experience teaches me that invention isn’t about big machines—it’s about caring for others and solving small problems. I want to keep creating useful things for my family!
范文中文翻译
给爷爷的小发明
爷爷经常忘记按时吃药，这让全家人都很担心，所以我决定设计一个“吃药提醒盒”来帮他。
这个盒子是用木头做的，简单又安全。它有三个小部件：一个时钟、一盏灯和一个扬声器。每天早上8点，时钟会响，灯也会亮，扬声器还会说：“爷爷，该吃药啦！”我还在盒子上贴了我们的全家福，让它看起来更温暖。
爷爷特别喜欢这个盒子！现在他再也不会忘记吃药了。这次经历让我明白，发明不一定是复杂的机器——它可以是关心他人、解决小问题的小物件。我还想继续为家人创造有用的东西！
素材积累
核心短语
build...out of... 用……制作
lend a hand to 帮助……
work on 致力于；努力改进
hit on success 获得成功
come up with 想出（主意、方案）
be curious about 对……好奇
one after another 一个接一个地
for free 免费
fix problems 解决问题
make money from 从……赚钱
post...online 把……发布到网上
download the design 下载设计图
earthquake detector 地震探测器
lightning rod 避雷针
space exploration 太空探索
基础句型（含本单元重点）
基础句型 仿写句子
He decided to ________ (to-infinitive作宾语). He decided to improve the old radio to play music.
She enjoys ________ (-ing形式作宾语). She enjoys designing small tools for daily life.
What a ________ invention!（感叹句） What a clever invention the smart umbrella is!
He was so curious about ________ that he ________. He was so curious about robots that he joined a robot club.
What’s worse, ________. What’s worse, the old bike broke down on the way to school.
好句集锦
1.Inventions are not just about creating new things—they’re about solving problems and making life better.
2.Curiosity is like a light; it guides us to explore the unknown and turn ideas into reality.
3.Every great inventor started with a small problem—don’t be afraid to think of solutions for the little things around you.
4.It’s not how big the invention is, but how much it helps people that matters.
谚语
1.Necessity is the mother of invention.（需要是发明之母——强调问题对发明的推动）
2.Curiosity killed the cat, but satisfaction brought it back.（好奇害死猫，但满足感让它回归——体现好奇心的探索价值）
3.Nothing is impossible to a willing heart.（有志者事竟成——适用于描述发明过程中的坚持）
学生写作填空练习版
版本一：讲述发明故事
________ (发明家姓名), a young inventor, made a great invention to help people in need. He found that ________ (发现的问题，如many kids with no arms couldn’t afford expensive artificial arms).
He decided to ________ (行动1，如build a cheap arm) and kept working on it. First, he used ________ (材料，如plastic blocks) to make a model. Then he got a ________ (工具，如3-D printer) and improved the design. After years of hard work, he ________ (成果，如hit on success and made a light arm).
He even ________ (分享/贡献，如posted the design online for free) to help more people. His story teaches me that ________ (感悟，如we can use creativity to help others).
版本二：阐述好奇心的力量
Curiosity is the key to invention. Many great inventors were curious about the world around them.
________ (发明家姓名) was curious about ________ (探索对象，如electricity). He ________ (行动，如did many experiments) and finally invented ________ (发明成果，如the lightning rod). Another example is ________ (发明家姓名)—he was so curious about ________ (探索对象，如space) that he ________ (行动，如created a flying chair to explore).
These stories show that curiosity drives invention. I will ________ (行动，如stay curious and try to find answers to my questions). Maybe my curiosity will lead to an invention one day!
版本三：设计发明方案
I often face a small problem in life: ________ (生活问题，如I can’t find my keys easily). So I want to design ________ (发明名称，如a “Key Finder”) to solve it.
My invention will be made of ________ (材料，如soft plastic). It has ________ (部件，如a small GPS and a phone app). When I lose my keys, I can ________ (使用方法，如open the app to find their location). It’s ________ (优点，如small and easy to carry).
This invention will ________ (实用价值，如save me time looking for keys). I hope to ________ (改进计划，如add a beep function later) to make it better. Small inventions can really make life easier!

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