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外研版英语八年级上册 Unit 3 Make it happen 知识总结
一、重点词组搭配
1.动词词组
build...out of... 用…… 制作……
eg：Easton built the robotic arm out of plastic blocks.
（伊斯顿用塑料积木制作了机械手臂。）
lend a hand (to sb.) 帮助某人
eg：He decided to lend a hand to children without arms.
（他决定帮助没有手臂的孩子。）
work on 致力于；努力改进
eg：Easton kept working on the artificial arm for years.
（伊斯顿多年来一直致力于改进假肢。）
come up with 想出（主意、方案等）
eg：How did Shantanu come up with the smart stick idea
（尚塔努如何想出智能拐杖的主意？）
2. 介词短语
what's worse 更糟糕的是
eg：The arm cost $80,000, and what's worse, it was too heavy.
（假肢花费 8 万美元，更糟的是它太重了。）
blow sb. away 使某人大为惊讶
eg：Easton was blown away by the high cost of Jenny's arm.
（伊斯顿对珍妮假肢的高价感到震惊。）
be curious about 对…… 好奇
eg：Children are naturally curious about how things work.
（孩子们天生对事物的运作方式感到好奇。）
3. 其他短语
3-D printer 三维打印机
lightning rod 避雷针
space exploration 太空探索
二、重点句型用法
1. 不定式（to-infinitive）作宾语
结构：动词 + to do
eg：He decided to post his design online.（他决定在网上发布设计。）
Lily wanted to help her grandfather.（莉莉想帮助爷爷。）
常见动词：decide, want, hope, try, learn, plan 等。
2. -ing 形式作宾语
结构：动词 + doing
eg：He enjoyed fixing problems.（他喜欢解决问题。）
She suggested making a new cup.（她建议做一个新杯子。）
常见动词：enjoy, finish, practice, suggest, mind 等。
3. so...that... 引导结果状语从句
结构：so + 形容词 / 副词 + that 从句
eg：Wan Hu was so curious about space that he invented a flying chair.
（万户对太空如此好奇，以至于发明了飞椅。）
4. 感叹句
What 引导：What+a/an+adj.+ 单数名词 (+ 主语 + 谓语)!
eg：What a helpful invention!（多么有用的发明啊！）
How 引导：How+adj./adv.(+ 主语 + 谓语)!
eg：How creative Easton is!（伊斯顿多有创造力啊！）
三、语法点详细梳理（不定式与 - ing 作宾语）
1. 不定式（to-infinitive）作宾语
（1）基本用法:表示具体的、未做的动作
eg：He decided to improve the arm.（他决定改进假肢。表未来动作）
They hope to invent a new machine.（他们希望发明新机器。表未做动作）
（2）固定搭配
want to do 想要做
plan to do 计划做
learn to do 学习做
fail to do 未能做
2. -ing 形式作宾语
（1）基本用法:表示习惯性、已做的动作
eg：She enjoys inventing things.（她喜欢发明东西。表习惯）
He finished designing the model.（他完成了模型设计。表已做）
（2）固定搭配
enjoy doing 喜欢做
practise doing 练习做
suggest doing 建议做
mind doing 介意做
3.特殊动词对比
动词 后接不定式（to do） 后接 - ing 形式
remember remember to do （记得去做未做的事） remember doing（记得做过的事）
forget forget to do （忘记去做未做的事） forget doing（忘记做过的事）
stop stop to do （停下来去做另一件事） stop doing（停止正在做的事）
4. 易错点突破
（1）混淆不定式与 - ing
错误例：He suggested to make a new plan.（×）
正确：He suggested making a new plan.（√，suggest 后接 - ing）
（2）忽略固定搭配
错误例：I want inventing a robot.（×）
正确：I want to invent a robot.（√，want 后接 to do）
四、语法综合练习
1. 用所给词的正确形式填空
Easton decided ______ (post) his design online.
She enjoys ______ (fix) small machines in her free time.
They plan ______ (create) a smart device for the elderly.
2. 句型转换
He wants to invent a new tool.（改为 - ing 作宾语）
→ He is considering ______ ______ new tool.
3. 翻译句子
我希望发明一种能帮助盲人的机器。
他喜欢尝试解决各种问题。
答案与解析
1. 填空题
to post（decide to do）
fixing（enjoy doing）
to create（plan to do）
2. 句型转换
→ He is considering inventing a（consider doing）
3. 翻译
I hope to invent a machine that can help blind people.
He enjoys trying to solve all kinds of problems.
五、书面表达写作指导学案
话题：My Favorite Invention（我最喜欢的发明）
审题目
体裁：说明文 / 记叙文
时态：一般现在时（介绍发明）+ 一般过去时（发明历史）
要点：发明名称及用途；发明背景及过程；发明的意义或对生活的影响。
列提纲
段落 内容 亮点表达
开头 发明名称及第一印象 One invention that has changed my life is...
中间 发明背景 + inventor 故事 + 工作原理 It was invented by... in...; It works by...
结尾 个人感受及社会影响 Without it, I couldn't...; It has helped...
遣词造句
The smart phone, invented by Steve Jobs, has become an essential part of daily life.（史蒂夫 乔布斯发明的智能手机已成为日常生活的必需品。）
It works by connecting to the Internet and allowing users to communicate, work, and entertain.（它通过连接互联网，让用户能够沟通、工作和娱乐。）
This invention has not only made life convenient but also bridged the distance between people.（这项发明不仅让生活便捷，还拉近了人与人的距离。）
六、参考范文
The Invention That Changed My Life
The most amazing invention for me is the 3-D printer. In 2014, Easton LaChappelle used one to create a low-cost artificial arm, inspiring millions.
Unlike traditional printers, a 3-D printer builds objects layer by layer from plastic or metal. What impresses me most is how it turns ideas into reality—just like Easton did for disabled children. My science teacher once let us print a small model in class, and I was blown away by its magic.
Today, 3-D printers are used in medicine, architecture, and even food industry. They prove that creativity plus technology can solve real problems. As Easton showed, a small invention can make a big difference.

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