Unit3知识点-Understanding ideas-Reading练习 2025-2026学年外研版八年级英语上册

**基本信息** 初中英语八年级上册Unit3 Understanding ideas-Reading同步练，新授课场景下通过三层递进设计，实现从词汇句型巩固到语篇应用的知识内化，培养语言能力与思维品质。 **分层设计** |层次|知识覆盖|设计特色| |----|----------|----------| |小试牛刀|核心短语（如build out of）、基础句型转换|短语填空+一般疑问句转换，聚焦单一知识点记忆与基础语法应用| |配套练习|课文细节理解、词汇语法综合运用|★级单选考查信息提取，★★级完成句子融合词汇（如artificial arm）与课文语境| |拓展思考|语篇组织与创新表达|写作任务需用至少3个核心表达，整合知识解决实际问题，提升思维品质与语言综合能力|

八年级英语上册Unit3知识点-Understanding ideas-Reading练习 小试牛刀 A. 选用方框中的短语填空 | a helping hand | artificial arm | build out of | brain signals | fix problems | post online | 1. Easton used plastic blocks and fishing line to __________ the robotic arm. 2. Jenny was born without an arm, so she needed an __________. 3. The new arm can move with the user’s __________. 4. Easton enjoyed __________ one after another. 5. He decided to __________ his design for free to help more people. B. 句型转换（改为一般疑问句并作肯定或否定回答） 1. Easton built a robotic arm at the science fair. 一般疑问句：____________________________________________________ 肯定回答：____________________ 否定回答：____________________ 2. Easton’s invention has helped many children. 一般疑问句：____________________________________________________ 肯定回答：____________________ 否定回答：____________________ 配套练习 A. 单项选择（★） 从A、B、C、D中选择最佳答案。 1. How old was Easton when he stood beside his robotic arm at a science fair? A. 14 years old. B. 16 years old. C. 23 years old. D. 12 years old. 2. What was wrong with Jenny? A. She couldn’t see. B. She was born without an arm. C. She had no legs. D. She couldn’t speak. 3. How much did Jenny’s simple hook cost? A. $500. B. $3,600. C. $80,000. D. $8,000. 4. Why did Easton keep improving his design? A. To make money. B. Because his parents asked him to. C. To help children like Jenny. D. Because he wanted a prize. 5. What did Easton do with his final design? A. He sold it for $500. B. He posted it online for free. C. He gave it only to Jenny. D. He kept it a secret. B. 完成句子（★★） 根据课文内容，用正确的词汇完成句子。 1. 东顿用塑料积木和鱼线造了一个机械臂。 Easton __________ a robotic arm __________ __________ plastic blocks and fishing line. 2. 珍妮生来就没有手臂。 Jenny was born __________ an __________. 3. 更糟糕的是，像她这样的孩子长得很快，一直需要新的假肢。 What’s __________, children like her grow quickly and need new arms __________ __________ __________. 4. 东顿喜欢解决一个接一个的问题。 Easton enjoyed __________ problems __________ __________ __________. 5. 他的设计只有0.5公斤重，价格大约500美元。 His design only __________ 0.5 kilograms and cost around $500. 拓展思考 写一段话（至少5句）介绍一位像Easton一样用发明或行动帮助他人的人。可以是课文中的Easton，也可以是其他你钦佩的人（科学家、医生、志愿者等）。说明他/她遇到了什么困难，是如何解决并帮助他人的，以及你从他/她身上学到了什么。请使用以下表达中的至少三个： a helping hand, build out of, fix problems, artificial arm, brain signals, post online ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ 参考答案与解析 小试牛刀 A 1. build out of 2. artificial arm 3. brain signals 4. fixing problems 5. post online 解析： 1. “用……建造”用build out of。 2. 假肢用artificial arm。 3. “脑信号”用brain signals。 4. “解决问题”用fixing problems。 5. “发到网上”用post online。 小试牛刀 B 1. Did Easton build a robotic arm at the science fair? Yes, he did. / No, he didn’t. 2. Has Easton’s invention helped many children? Yes, it has. / No, it hasn’t. 配套练习 A 1. A（原文第1段说14岁） 2. B（原文第3段：She was born without an arm） 3. C（原文第3段：cost $80,000） 4. C（从上下文可知他想帮助像Jenny一样的孩子） 5. B（原文第7段：post his design online for free） 配套练习 B 1. built; out of 2. without; arm 3. worse; all the time 4. fixing; one after another 5. weighed 1 学科网（北京）股份有限公司 $