2026-2027学年沪教版九年级上册Unit 2 Section 1-Reading 课件

该初中英语课件围绕“伟大想法如何改变世界”主题，以阿基米德与金王冠的故事为核心，通过头脑风暴“历史上的智者”、First thoughts探讨伟大想法的领域与来源等导入环节，搭建从已知到未知的学习支架，帮助学生梳理“提出问题—发现原理—解决问题”的知识脉络。 其亮点在于融合思维品质与语言能力的培养，通过Fast-reading划分故事结构、Careful-reading分析实验流程（如填写“相同重量金子与王冠排水对比”表格），引导学生逻辑推理；设计角色扮演（如国王与阿基米德对话）和小组讨论“其他智者的问题解决”，提升语言表达与合作能力。学生能在探究中提升思维与语言运用，教师可借助结构化资源高效实施教学。

Unit 2 Great ideas 沪教牛津版九年级上册 How do great ideas change the world? Key question 主题范畴：人与社会 Reading I 1 Unit objectives After learning this unit, you can: talk about people with great ideas. understand different ways of coming up with new ideas. explain how a great idea solved a problem. find out how great ideas have changed our lives. 弄清伟大的想法如何改变我们的生活。 谈论拥有伟大想法的人物。 理解产生新想法的不同方式。 阐释一个伟大想法是如何解决问题的。 Brainstorming Do you know any wise people in history? Why are they famous? What do you think of them? I know ... and ... They are famous because they ... I think they are important/creative/smart ... First thoughts What fields are these great ideas in? Where do great ideas come from? How have great ideas influenced different fields in our lives? Where do great ideas come from? 伟大的想法从何而来? What do great ideas bring about? 伟大的想法会带来什么? Why do we need new ideas? 我们为什么需要新创想? How have great ideas influenced our lives? 伟大的想法是如何影响我们的生活的? Give me a place to stand on, and I will move the Earth. [ˌɑːkɪˈmiːdiːz] 阿基米德 Archimedes Who said it? Before you read (1) Who was Archimedes? (You may choose more than one answer.) a a physicist  b a painter  c a mathematician (2) Where was Archimedes born? a Pisa, an Italian city  c Syracuse, an ancient Greek city b Cairo, an Egyptian city (3) Which of the quotes below is from Archimedes? a Give me but one firm spot on which to stand, and I will move the Earth. b You can’t step twice into the same river. c I know nothing except the fact of my ignorance. Archimedes (287 BC - 212 BC), was a great ancient Greek mathematician (数学家), physicist (物理学家), inventor , engineer and astronomer (天文学家). He was born in Sicily (西西里). He was good at thinking and liked the debate. Archimedes was killed by a Rome soldier when he was 75 years old. Do you know any other things about Archimedes? Archimedes’ principle Applications of Archimedes’ principle Talk about them in pairs. What are the applications of Archimedes' principle in daily life? Can you give an example? Sure. Ship designers use Archimedes' principle to make sure their ships float on water. *firm /'fɜːm/ ignorance /'ɪgnərəns/ application /ˌæplɪ'keɪʃn/ fancy /'fænsi/ satisfied /'sætɪsfaɪd/ prince /prɪns/ displace /dɪs'pleɪs/ adj. 牢固的；坚硬的 n. 无知 n. (尤指理论等的)应用 adj. 精致的；绚丽的 adj. 满意的；满足的 n. 王子 v. 排出；取代；替代 New words Pre-reading fool /fuːl/ *prison /'prɪzn/ be satisfied with fill ... with run over go straight to v. 欺骗；愚弄 n. 监狱；牢狱 对……感到满足 充满；装满 溢出 直奔 1.Who was the crown probably made for? 2. What is Archimedes doing in the first picture? 3. Why is Archimedes so excited ? 4. What is in the right pot in the second picture? It was probably made for the king. He is having/taking a bath. Because he probably had a good idea. The crown. Look at the pictures and the title of the story on page 3. Then answer the questions below. section 1的标题在第一次出现的时候可以放一下 One day in the ancient Greek city of Syracuse, King Hiero asked a crown maker to make him a fancy golden crown. At first, he was very satisfied with it. “It’s a nice crown, isn’t it?” he asked his son, the prince. Later, however, he began to doubt whether it was a real golden crown. “Is it made completely of gold?” he wondered. He sent it to Archimedes and asked him to find out the truth. “This problem seems difficult to solve. What should I do?” thought Archimedes. Archimedes was still thinking about this problem as he filled his bath with water. When he got into the bath, some water ran over. “Eureka! That’s it!” shouted Archimedes. “I know how to solve the king’s problem!” Archimedes and the golden crown Reading Archimedes went straight to the palace to see the king. First, he weighed the crown and asked the king for some gold of the same weight. Next, he put two pots into two big bowls and filled both pots with water. He put the gold into one pot, and some water ran into the bowl. Then he put the crown into the other pot. This time, even more water ran into the bowl. “Look at this,” said Archimedes to King Hiero. “A crown made completely of gold displaces less water than a crown made of gold and another metal. This crown displaced more water than gold of the same weight, so I know it’s definitely not completely made of gold.” “The crown maker fooled me, didn’t he? What a bad man he is!” shouted King Hiero. He then sent the crown maker to prison, and he praised Archimedes for his clever discovery. Read the story quickly. How many parts can you divide the story into? Fast-reading Read the story quickly. How many parts can you divide the story into? King Hiero asked a crown maker to make a crown for him. King Hiero doubted whether the crown was completely made of gold and asked Archimedes to test it. Archimedes discovered that things could displace water when taking a bath. Archimedes showed King Hiero that the crown wasn’t completely made of gold through an experiment. King Hiero was so angry that he put the crown maker into prison. Put the pictures in the correct order. Read Paragraphs 1-2 and finish the table. He was __________________ it. King Hiero asked a crown maker_______________________. He began to doubt whether ________________________. He sent the crown to ______________ and asked him ______________________. to make him a golden crown very satisfied with it was a real golden crown Archimedes to find out the truth Careful-reading Read Paragraphs 3-5 and answer the questions. 1.What did Archimedes think when he received the crown from King Hiero? 2. What happened when Archimedes got into the bath? 3. Why was Archimedes so excited? He thought it was difficult to solve the problem. Some water ran out of the bath/ran over. Because he thought that he could solve the king’s problem. was put into water some gold of the same weight some water ran into the bowl was put into water even more water ran into the bowl the crown the crown was not completely made of gold How to find out the truth Read Paragraphs 6-8 and finish the table. Read the story again. Find the answers to the following questions. Why did King Hiero send the crown to Archimedes? What happened when Archimedes got into bath? How did Archimedes discover that the crown was not made completely of gold? Why was Archimedes able to make this discovery? Because he doubted whether the crown was a real golden crown. Some water ran over. He put the crown in water and discovered that the crown displaced more water than gold of the same weight. (Possible answer) Archimedes’ observation in daily life enabled him to make this discovery. Further discussion If you were King Hiero, what would you do with the crown maker? What do you think of Archimedes? Why? I think Archimedes was very clever because he solved the king’s problem wisely in a short time. Besides, he was very good at observing details in life, as he discovered the truth while taking a bath. If I were King Hiero, I wouldn’t kill the crown maker at once. Instead, I would ask him whether he has difficulty in his life. If so, I would offer him some help and ask him not to cheat anyone else in the future. Post-reading Role-play Setting: In the palace hall. King Hiero is holding a golden crown. King Hiero: Look at this crown, my son. Isn’t it beautiful? At first, I was very satisfied with it. Prince: It’s very nice, Father. King Hiero: But now I doubt it. Is it really made completely of gold? I need to know the truth. Prince: Who can help us, Father? King Hiero: Archimedes is the cleverest man in Greece. I’ll send for him. Example: (1) Do you know of any other wise people like Archimedes? (2) What problem did he / she solve? (3) How did he / she solve it? Discuss Do you know any other wise people like Archimedes? What problem did he / she solve? How did he / she solve it? Wise people like Archimedes can come up with great ideas because they never give up when facing difficult problems. They keep thinking carefully and observing the world around them closely. These great people share many good qualities. First, they are curious and love asking questions. Second, they are patient and keep trying until they find the answers. Third, they are careful observers—they notice small things that others may miss. Finally, they are brave enough to think in new ways. These qualities help them solve difficult problems and make great discoveries. Further thinking Why can these wise people come up with great ideas? What qualities do they have in common? Vocabulary practice One day, two women came to King Solomon with a baby boy. Each of the women said the boy was hers. No one knew which woman was telling the truth. King Solomon wondered if there was a way to find out. “I have to be careful. I, too, can be (1)__________ by a clever liar,” he thought. Then he had an idea. He ordered a soldier to cut the boy in half and divide the boy between the two women. The first woman seemed to be (2)_______________ that. She said, “Go ahead. That sounds fair!” However, the second woman rushed to stop the soldier, “No! Don’t kill him! Let the other woman have him.” King Solomon stopped the soldier. “Give the boy to the second woman,” he said. “She is definitely his real mother.” When the woman heard the king’s words, her heart was (3)____________ relief. She happily took the baby and (4)________________ back home. The other one was sent to prison. Everyone praised King Solomon for his wisdom. fooled satisfied with filled with went straight When Archimedes got into the bath, some water ran over. This gave him an idea. He first weighed the crown and ask the king some gold of the same weight. He prepared two pots inside two big bowls and filled the pots with water. He put the gold into one pot, and some water ran into the bowl. Then he put the crown into the other pot. Even more water ran over. The crown could displace more water than the gold. It meant the crown had another kind of metal inside. In this way, Archimedes found out the truth. Summarize how Archimedes found out the truth. Use the words and phrases below. bath bowl crown displace metal fill … with gold of the same weight run over Homework 听并跟读Reading部分，复述课文 34 Unit 2 Great ideas 沪教牛津版九年级上册 How do great ideas change the world? Key question 主题范畴：人与社会 Reading II 35 目录 Revision 1 Phrases 2 Language points 3 Practice 4 36 Retell the story bath bowl crown displace metal fill ... with gold of the same weight run over Revision Find the phrases in P21 ask sb. to do sth. make sb. sth. at first be satisfied with be made of send sth. to find out the truth think about 叫某人做某事 给某人做某物 首先 对……满意 由……做成 把某物送给…… 弄清真相 思考；考虑 Find the phrases in P21 fill ... with ... run over go straight to ask sb. for ... be made of ... send ... to prison praise sb. for 用……把……装满 溢出 直奔 向某人要…… 由……制成 把……送进监狱 因……表扬某人 03 Language points 40 1. A crown made completely of gold displaces less water than a crown made of gold and another metal. 一顶完全由黄金制成的王冠排开的水，比一顶由黄金和其他金属制成的王冠排开的水更少。 made of 做定语，修饰crown，意思是“由……制作的” 过去分词做定语，表被动意义，直接修饰名词 我认识一个叫玛丽的女孩。她有一枚特殊金属制成的戒指。 I know a girl ______ Mary. She has a ring ______ ______ special metal. 即学即练 called made of 41 2. The crown maker fooled me, didn’t he? 反意疑问句又叫附加疑问句，用来核实情况或者希望对方同意，由陈述句 + 附加问句 构成，两部分的人称和时态应保持一致。 结构为：陈述句,+ be动词/助动词/情态动词+主语 反意疑问句的形式： A. 肯定句 + 否定 的附加问句（前肯后否） B. 否定句 + 肯定 的附加问句（前否后肯） 这个工匠骗了我，是吧？ 1. Mary hasn’t finished her homework, _____? A. has she B. does she C. hasn’t she D. have she 2. His sister had a bad cough, _____she? A.wasn’t B.doesn’t C.hadn’t D.didn’t 3. Don’t smoke in the meeting-room, _____? A.do you B.will you C.can you D.could you A D B 即学即练 4. It’s a fine day. Let’s go fishing, ______? A. won’t we B. will we C. don’t we D. shall we 5. At the meeting Mr King didn’t say a word from beginning to end, ______? A. didn’t Mr King B. did he C. did mr king D. didn’t he 6. Zhang Haidi never went to school, ______? A. does she B. did she C. doesn’t she D. didn’t she D B B In this class, we have learned new words and expressions in this unit. the detailed information and the structure of the text. something about great Archimedes. some important language points in the text. Summary Self-assessment How well do you know about this lesson? Tick the boxes. I understand the new expressions in the text. 口 口 口 I understand the detailed information about the text. 口 口 口 I know how to retell the passage with key words. 口 口 口 I think I can use all language points correctly. 口 口 口 个人作业（可选） 小组作业（可选） 1.录音机跟读课文，朗读2-3遍，模仿语调，把握单词的读音和句子的停顿。 1.角色扮演，根据reading的故事将其演绎出来。 2.完成《双语报》Reading部分练习。 3.完成《阳光学业评价》Reading部分练习。 ⭐可参考作业布置如下： Samples: Homework 单击“同步练习题”字样，即可打开本课时同步练习题的Word文档。 47 THANKS Lavf57.71.100 Packed by Bilibili XCoder v2.0.2 Blues 144776.92 $