Unit 4 Words and Expressions课件 2025-2026学年沪教版八年级英语上册

Unit 4 Inventions Key question 主题范畴：人与社会 Words and expressions What makes an invention great? -What do they have in common（共同的）? Lead-in -All the inventions have wheels. /wiːl/ c.n.车轮 Unit 4 Inventions Key question 主题范畴：人与社会 Words and expressions What makes an invention great? 1.balloon c.n.气球 /bə'luːn/ Look and Say Game Time 2.central /'sentrəl/ adj. 在中心的 Look and Say centre. n 中心 Game Time 3.attach /ə'tætʃ/ v. 把…固定；把…附(在…上) Look and Say Game Time 4.pull /pʊl/ v. 拉,拽,扯,拖 Look and Say 反: push v. 推 Game Time 5.international /ˌɪntə'næʃnl/ adj. 国际的 Look and Say nation n. 国家 inter-: “在…之间、相互” Game Time 6.path /pɑːθ/ c.n.小路 Look and Say Game Time 7.technique /tek'niːk/ c.n.技巧; 技艺 Look and Say technology n. 技术 Game Time 8.depend /dɪ'pend/ v.需要; 依靠 Look and Say dependent independent adj.依赖的 adj.独立的 Game Time 9.doubt /daʊt/ n. 怀疑;疑惑 v.怀疑 Look and Say without doubt 毫无疑问 Game Time 1..steam locomotive c.n.蒸汽机车 /stiːm/ /ˌləʊkə'məʊtɪv/ Look and Say (n.) 水蒸气 (n.) 机车; 火车头 Game Time 2.crewed spacecraft 载人航天器 Look and Say crew (n.) 机组人员 (n.) 太空船 /kruːd/ /ˈspeɪs.krɑːft/ Game Time 3.3D Printer 3D 打印机 Look and Say print (v.) 打印; 印刷 Game Time Read Words 把…固定 1.( ) To need someone or something. 2.( ) To join (连接）one thing to another. 3.( ) A small road for walking. 4.( ) Not being sure about something. 5.( ) To make something move toward you. Match the words to their meanings: D A C E B ____________( ) attach 需要，依靠 ____________( ) ____________( ) ____________( ) ____________( ) depend path doubt 小路 怀疑 pull 拉 1.although /ɔːl'ðəʊ/ conj. 虽然；尽管；即使 用法: 引导让步状语从句 不与but连用，但可 以与yet和still连用 尽管下雨，我们还是去徒步了。 it rained, we went hiking. Although this meant that people could travel further and faster, transporting large amounts of goods was still a difficult, Although still 大量的 2.attach /ə'tætʃ/ v. 把…固定；把…附(在…上) attach sth. to sth. 把某物固定到某物上 The man is __________ the horse ___ the carriage. attaching to They soon attached wheels to horse-pulled vehicles. 3.pull /pʊl/ v. 拉,拽,扯,拖 马拉的 As a middle school student, you should learn to depend ___ yourself to make a decision. on depend on... = depend upon... 依靠; 依赖 Your exam results depend on ________ (study) hard every day, not just before the test. studying 4.depend /dɪ'pend/ v.需要; 依靠 Windmills（风车）, clocks and other machines all use wheels, and the Industial Revolution depended on the wheel. 5.doubt /daʊt/ n. 怀疑;疑惑 v.怀疑 There is no _______ (doubt) that he will win the game. doubt without doubt 毫无疑问 用法：用于加强语气，说明观点的确定性，可以放在句首，句中，或句末 毫无疑问，他是日本最伟大的音乐家 Bi Sheng is one of the greatest inventors in China. = He, without doubt, is the greatest musician in Japan. Without doubt, the wheel is one of the most important inventions of all time. 毫无疑问，毕昇是中国最伟大的发明家之一。 Without doubt, 有史以来 steam locomotive 蒸汽机车 crewed spacecraft 载人航天器 on foot 步行 a number of 几个；若干 take place 发生；进行 for instance 例如，比如 large amounts of 大量 international trade 国际贸易 depend on 依靠，依赖 3D printer 3D打印机 without doubt 毫无疑问 of all time 自古以来；有史以来 make fun of 取笑，拿…开玩笑 traffic jam 堵车，交通阻塞 Phrases Task4 Practice 1、阅读短文,根据上下文和所给的首字母写出所缺单词,注意使用正确形式,每空限填一词。 Inventions change our lives amazingly. They are a(1)c_______part of modern life. From the wheel to smartphones, each invention changes how we live. In the medical field, different kinds of machines help save more lives. Doctors treat(治疗) illnesses faster and more safely than before. There is no (2) d_______that they make life easier. In factories, (3)p_______heavy things is the main task of many machines which is difficult for people. Inventions also create new(4)p_______that lead to progress, paving the way to better lives. We should be careful with inventions like social media. They are useful but also cause problems. The success of inventions (5)d________on how we use them. Let's value and use them wisely. entral oubt ulling aths epends 1.在轮子发明之前，人们只能步行去其他地方。 Before the wheel was invented, people could only go to other places _____ _____. 2.一个重要发明的展览将于下周在我校举行。 An important invention exhibition will ________ _______ in our school next week. 3.有些发明非常有趣，例如，会飞的自行车。 Some inventions are very interesting, ______ ____________, a flying bike. 4.制造一辆汽车需要大量的金属。 Making a car needs _________ _____________ ________metal. 5.这位发明家想出了好几个解决交通问题的新点子。 The inventor thought of ____ __________ ____ new ideas to solve the traffic problem. 6. 不要取笑别人的发明。这是不礼貌的。 Don’t _______ ________ _______ others’ inventions. It’s not polite. 2、完成句子 on foot take place a number of for instance large amounts of make fun of 基础作业 拓展作业 1.跟录音读单词和短语两遍，注意单词发音和重读音节，完成天学网作业。 请用以下指令语在豆包或Deepseek中AI整理Invention (发明)相关主题词汇 2.完成填词游戏 “我是一名广州初二的学生，请结合广州中考帮我整理关于Invention(发明)的英语单词，请分类整理并给出词性和音标。” 3.整理前缀inter- 、后缀-al、后缀-tion的单词并绘制思维导图 Homework Thanks null 112094.555 $