Unit 3 Developing ideas知识点讲练 2025-2026学年外研版英语八年级上册

本初中英语讲义围绕Unit 3核心语法与词汇构建知识体系，通过分点解析与例句对比呈现脉络，将部分否定结构、动词短语等重难点按“概念-例句-应用”逻辑串联，清晰展示语法规则与语境运用的内在联系。 该讲义“学以致用”模块设计分层练习，如“并非每本书都有趣”的汉译英题培养语言能力，“错过参加会议”的短语填空提升思维品质。课后跟踪练结合单词拼写与语法填空，基础题巩固知识，综合题发展学习能力，助力教师精准教学，支持学生自主复习时明确薄弱点。

Unit 3 Developing ideas知识点讲练 2025-2026学年外研版英语（2024）八年级上册 ★ Knowledge points 1. Not every invention is created on purpose. Sometimes it's completely by accident. 并非每一项发明都是有意创造出来的。有时候，它完全是偶然发生的。 ① Not every...部分否定结构。not every+名词意为"并非每个……"，是部分否定。 Not every student likes math.并非每个学生都喜欢数学。 ② on purpose 意为"故意地"，是副词短语，在句中作状语。 He broke the cup on purpose.他故意打碎了杯子。 ③ by accident 意为"偶然地；意外地"，同样作状语。 I met an old friend by accident on the street.我在街上偶然遇到了一位老朋友。 【学以致用】 (1) 并非每本书都有趣。 ________________________________________________________________ (2)He found the key ______ (偶然地) while cleaning the room. She tore my paper______ (故意地)。 2. For example, in 1928, Dr Alexander Fleming forgot to clean his lab before going on a holiday. 如 1928 年亚历山大·弗莱明博士在去度假前忘了打扫他的实验室。 ① forget to do sth 意为"忘记去做某事"（事情还未做）。 Don't forget to close the door when you leave.你离开时别忘了关门。 ② forget doing sth 意为"忘记做过某事"（事情已经做了） I forget closing the door.我忘记已经关过门了。 【学以致用】 (1)Remember to call me when you get there. Don't ______________________ (忘记打电话) me. (2)I ______________________ (忘记锁) the door this morning. It remained open all day. 3. It's now one of the most frequently used medicines in the world! 它如今是世界上使用最多的药物之一! one of the+ 形容词最高级 + 名词复数意为"最……之一"，其作主语时，谓语动词用单数形式。 One of the longest rivers in the world is the Yangtze River.世界上最长的河流之一是长江。 【学以致用】 (1) 上海是世界上最大的城市之一。 ________________________________________________________________ (2)The Great Wall is one of the most famous wonders of the world. (英译汉) ________________________________________________________________ 4. DON'T MISS OUT! 别错过! miss out 是一个动词短语，意为"错过；错失（机会等）"，既可以单独使用，也可后接介词"on"，再接宾语。用于提醒或警示别人不要错过某事。miss out on(doing) sth 意为"错过做某事"。 【学以致用】 (1) 如果你现在不买票，你就会错过这场音乐会。 ________________________________________________________________ (2)Don't ______ ______ ______(错过) the chance to study abroad. (3)He missed ______ ______(错过参加) the important meeting because of the traffic jam. 5. Spencer Silver invented a type of glue. 斯宾塞·西尔弗发明了一种胶水。 a type of 表示"一种；一类"，用于对事物进行分类或说明事物的种类，后接名词。用来介绍某事物所属的类别时，type 可以用 kind、sort 等词替换，意思相近。 【学以致用】 (1) 这是一种中国传统艺术。 ____________________________________________________________ (2)He is studying ______ ______ ______(一种) medicine that can cure the disease. 6. Arthur Fry thought it was perfect for sticking notes to books without... 亚瑟·弗莱认为它非常适合把便条贴在书上而不…… be perfect for(doing) sth 意为"非常适合（做）某事"，perfect 表示"完美的；理想的"，用于描述某事物在特定用途或情境下的适用性。for 是介词，后可接名词，代词或动名词作宾语。 【学以致用】 (1) This kind of material is perfect for making clothes. (英译汉) ____________________________________________________________ (2) The location is ______ ______(非常适合) opening a new restaurant. 7. The Wright Brothers learnt from... and never lost hope. 莱特兄弟从……中吸取经验教训，并且从未失去希望。 learn from 从……中学到 from 是介词，后接名词，代词或动名词。 sb learn/learns/learned from+ 宾语 We should learn from the great inventors.我们应该向伟大的发明家学习。 【学以致用】 (1)He ______ ______his past failures and became more successful. (2)学生们可以从老师丰富的经验中学习。 ____________________________________________________________ 8. We can start by addressing the listeners directly or asking an interesting question... 我们可以从直接与听众交流或提出一个有趣的问题开始…… address 在此处作动词，意为"对……说话；称呼"；directly 是副词，意为"直接地"，用来修饰动词 address，表示说话的方式是直接的。 address sb 意为"对某人说话/称呼某人"，address sb directly 强调直接与某人交流。 【学以致用】 (1) 演讲者直接且热情地对听众讲话。 ____________________________________________________________ (2)When giving a speech, it's important to ______ the listeners ______ (直接称呼). 9. Talk about what you have learnt about the qualities of an inventor in this section. 谈谈你在这部分所学到的关于发明家的品质。 qualities of 意为"……的品质/特质"，quality 作可数名词，意为"品质；特性"，常用来描述人或事物所具备的特点。of 为介词，用于连接被描述的对象，即说明是关于谁或什么东西的品质。 【学以致用】 (1) The qualities of a good leader include honesty and determination. (英译汉) ____________________________________________________________ (2)We should cultivate the good ______ ______ (品质)，such as kindness and perseverance. 课后跟踪练 一、根据句意和首字母提示写出单词。 1. We should a ______ what we've learned to solve this problem. 2. The new stick is useful for the ______ to walk. 3. In the factory, the m ______ works non-stop to make products. 4. The sign on the wall w ______ people not to smoke here. 5. Let's c ______ the winners of the competition. 6. There are lots of a ______ on TV trying to sell different things. 7. Washing hands is an important part of our e ______ hygiene. 8. Don't t ______ yourself over small mistakes. 9. An i ______ child can come up with many unique ideas. 10. The heavy rain stopped and the street was c ______ dry after the sun came out. 11. Bob is so c ______ that he invented such a useful thing. 二、用所给词的适当形式填空。 Inventions don’t always come in a planned way.Many inventors have special ______ (quality) that help them succeed. For example, the Wright Brothers never gave up when facing difficulties. They learned from their 2. ______ (weak), and finally made their dream of flying come true. Spencer Silver once 3. ______ (invent) a type of glue by accident. At first, people didn’t know its real 4. ______ (useful), but Arthur Fry found one great use of it. He thought the glue was perfect for 5. ______ (stick) notes to books. Sometimes, minor 6. ______ (discover) can lead to great inventions. A young boy left a cup of 7. ______ (boil) water outside on a cold winter day. When he came back, he found the water frozen. This made him want 8. ______ (explore) how frozen things could be useful. Moreover, inventors keep 9. ______ (learn) throughout their lives. They have the courage 10. ______ (turn) their ideas into reality. In conclusion, great inventions often come from unexpected situations, creative thinking, and determination to keep going. Developing ideas答案 Knowledge points 1. (1) Not every book is interesting. (2) by accident; on purpose 2. (1) forget to call (2) forgot to lock 3. (1) Shanghai is one of the biggest cities in the world. (2) 长城是世界上最有名的景观之一。 4. (1) learned/learnt from (2) Students can learn from their teacher’s rich experience. 5. (1) If you don’t buy the tickets now, you’ll miss the concert. (2) miss out on (3) out on 6. (1) This is a type of traditional Chinese art. (2) a type/kind of 7. (1) 这种材料非常适合做衣服。 (2) perfect for 8. (1) 一位优秀领导者的品质包括诚实和决心。 (2) qualities 9. (1) The speaker addressed the audience directly and passionately. (2) address; directly 课后跟踪练 一、 1. apply 2. blind 3. machine 4. warns 5. congratulate 6. advertisements 7. everyday 8. trouble 9. imaginative 10. completely 11. creative 二、 1. qualities 2. weakness 3. invented 4. use 5. sticking 6. discoveries 7. boiling 8. to explore 9. learning 10. to turn 学科网（北京）股份有限公司 $