Unit2 Great ideas Grammar 课件2026-2027学年沪教版九年级上册英语

该初中英语课件聚焦四种句子类型（陈述句、疑问句、祈使句、感叹句）的识别与运用，通过阿基米德王冠故事的复习排序、情境问答等活动，引导学生从具体语境中发现句子功能差异，搭建从旧知到新知的学习支架。 其亮点在于以情境化教学激活语言能力，通过“Combine and write”连词成句、小组讨论科学家故事等任务，让学生在实践中掌握句子类型及标点运用，提升思维品质。Summary部分通过判断、改写等分层练习巩固知识，既帮助学生形成系统语法认知，也为教师提供清晰的教学路径。

Unit2 Great ideas Grammar in use （沪教版 2024）九年级 上 1 Learning objectives 0 Lead in Presentation 2 Practice Production 4 Summary Assessment 6 Homework 1 3 5 7 By the end of the lesson, I will be able to... 1 2 3 recognize and use four sentence types correctly; construct full sentences with correct capitals and punctuation; tell stories about great scientists using different sentence patterns. 00 Learning objectives Review and retell. Lead in 01 d Send this crown to Archimedes. c I need some gold of the same weight as the crown. b When I get into the bath, some water is displaced! g (bath scene drawing) e When the gold is put into the pot, some water is displaced. h But when the crown is put into the pot, more water is displaced. a The crown isn’t made completely of gold! f Send him to prison! Look and answer. Lead in 01 The crown ______ __________. beautiful What does the king think of the crown? is Look and answer. Lead in 01 ______ it made of pure gold? Is What question do people have? Look and answer. Lead in 01 ______ put the crown into water. Please What does Archimedes ask people to do? Look and answer. Lead in 01 How do people feel about Archimedes? ______ clever Archimedes is! How Read and find. Lead in 01 The crown ______ __________. beautiful is ______ it made of pure gold? Is ______ put the crown into water. Please ______ clever Archimedes is! How Are these sentence types the same? What are the sentence types? What different types are there? What is a sentence? Presentation 02 Read and judge. Read and judge whether the following are sentences. _______ Beautiful flowers in the garden _______ Running on the playground _______ To finish homework after school _______ If it rains tomorrow F 只说了事物，没说花怎么样 F 谁在跑？信息缺失，语义不完整 F 在没有执行者，不成完整句意 残缺短句，逻辑不完整 Beautiful flowers bloom in the garden. I am running on the playground. I will stay at home if it rains tomorrow. My task is to finish homework after school. A sentence is a group of words that convey a complete idea. F There are four main sentence types. Presentation 02 Read and learn. Sentence types 1 Statements 陈述句 讲解：陈述句作用是客观陈述人、事物、观点，只传递信息，不带提问、命令、抒情；句末统一使用句号 。 分类： 肯定陈述句：直接表达正面事实，无否定词 not 例句：King Hiero asked a crown maker to make him a golden crown. 否定陈述句：加 not 对事实进行否定 例句：It was not a real golden crown. Try to do：The crown is made of pure gold.(将肯定句改为否定句) ____________________________________________________ The crown is not made of pure gold. A statement provides information about people, things, ideas, etc. It usually ends with a full stop (.). There are four main sentence types. Presentation 02 Read and learn. Sentence types 2 Questions 疑问句 分类： Yes / No question 一般疑问句： be 动词 / 助动词放句首， 回答只能用 Yes 或 No 例句：Is it made completely of gold? 讲解： 语法知识点讲解 疑问句用来提出问题、获取信息，句末统一用问号 ? We use questions to ask for information. It ends with a question mark (?). There are four main sentence types. Presentation 02 Read and learn. Sentence types Wh-question 特殊疑问句： what/who/how 等疑问词开头，不能用 Yes/No 简答，要答具体信息 例句：What should I do? Alternative question 选择疑问句： 句子带有 or 提供两个选项，回答直接选选项，不用 Yes/No 例句：What is the crown made of, gold or something else? Try to do：判断句子属于哪一类问句 _______________ Where did Archimedes do his water experiment? Wh-question Presentation 02 Read and learn. Sentence types 3 Imperatives 祈使句 讲解： 祈使句用来表达请求、命令，直接以动词原形开头，省略主语 you；语气缓和用句号 . 强硬命令用感叹号 ! 否定形式统一为 Don’t + 动词原形。 例句 1（委婉请求）：Please give me some gold of the same weight. 例句 2（强硬命令）：Send the crown maker to prison! Try to do：把原句改成否定祈使句 Put the crown into the water. Tips: 第一步：祈使句否定规则，句首加 Don’t，后面动词保持原形 put 不变； 第二步：其余单词顺序不变； 答案：_______________________________________________________ Don’t put the crown into the water. An imperative sentence gives a command or makes a request. It ends with a full stop (.) or an exclamation mark (!). Presentation 02 Read and learn. Sentence types 4 Exclamations 感叹句 讲解： 感叹句用来抒发强烈的赞叹、惊喜、气愤等情绪，句末固定用感叹号 ! 分类： How + 形容词 / 副词 + 主谓！（How 修饰形容词、副词） 例句：How excited Archimedes was! What + (a/an) + 形容词 + 名词短语 + 主谓！（What 修饰名词） 例句：What a bad man the crown maker is! Try to do：填入 How / What -______ beautiful the golden crown is! How An exclamatory sentence expresses strong feelings. It usually ends with an exclamation mark (!). Look and label. Practice 03 __________________(1) How did Archimedes discover the truth? __________________(2) How clever he is! __________________(3) King Hiero sent me to prison. __________________(4) What a lonely place this is! __________________(5) Will he let me out soon? __________________(6) I don’t want to stay here any longer. __________________(7) Please let me out! 1 Look at the sentences below and label the sentence types. Wh-question Exclamation Positive statement Exclamation Yes / No question Negative statement Imperative Combine and write. Practice 03 (1) felt | he | an electric shock ________________________________________________________ (2) Benjamin Franklin | an amazing discovery | what | made ________________________________________________________ (3) did | how | he | his theory | prove ________________________________________________________ (4) cause | do | often | forest fires | lightning strikes ________________________________________________________ 2 Combine each set of words into a sentence. Use correct punctuation. Remember to capitalize the first letter of each sentence. He felt an electric shock. What an amazing discovery Benjamin Franklin made! How did he prove his theory? Do lightning strikes often cause forest fires? Combine and write. Practice 03 (5) clever | how | was | Benjamin Franklin ________________________________________________________ (6) can | which kind of | a wet one | an electric charge | a dry one | conduct | or | silk string ________________________________________________________ ________________________________________________________ (7) the broken | touch | don’t | electric wire ________________________________________________________ 2 Combine each set of words into a sentence. Use correct punctuation. Remember to capitalize the first letter of each sentence. How clever Benjamin Franklin was! Which kind of silk string can conduct an electric charge, a dry one or a wet one? Don’t touch the broken electric wire! 3 Here are some great ideas that have changed the world. Choose one and research it on the internet. Then discuss in pairs. You may choose other ideas that interest you. Choose and discuss. Production 04 Darwin’s theory of evolution　Newton’s theory of gravity　the World Wide Web What was the idea? How has the idea changed the world? Who first had the idea? How did he / she come up with the idea? 问答必须使用 Wh-question / Yes/No question / Alternative question 三种问句； 陈述观点使用 Positive / Negative statement； 抒发感受用 Exclamation； 给同伴指令、建议用 Imperative； 双人对话里每种句子类型至少使用 1 次，巩固本课4种句子分类语法。 3 Here are some great ideas that have changed the world. Choose one and research it on the internet. Then discuss in pairs. You may choose other ideas that interest you. Choose and discuss. Production 04 Tips: Darwin’s theory of evolution　Newton’s theory of gravity　the World Wide Web A: Let’s discuss the World Wide Web today. B: Do you want to talk about its creator or its influence first? A: Who invented the World Wide Web at first? B: Tim Berners-Lee came up with this great idea. A: Did he create it just for fun? B: No, he hoped scientists could share research information easily. A: How did he turn this thought into real technology? B: He designed hyperlinks to connect all digital documents online. A: The World Wide Web breaks the distance between every country and lets us study online freely. B: However, it also brings much false information that confuses people. A: What a life-changing invention the World Wide Web is! B: Search more stories about Tim Berners-Lee after class. Production 04 Choose and discuss. Darwin’s theory of evolution　Newton’s theory of gravity　the World Wide Web For example: Imperative（祈使句，开场提议） Alternative question（选择疑问句） Wh-question（特殊疑问句） Yes/No question（一般疑问句） Positive statement（肯定陈述句） Show time Talk clearly (内容清晰) Pronunciation(发音标准) Body language(使用肢体语言) Fluently(流利的) Reasonable(理由合理) Grade and share: 一、按要求判断句子类型 1 陈述句 2 疑问句 3 祈使句 4 感叹句 How did Franklin find the truth? ________ (2) King Hiero sent him to prison. ________ (3) What a lonely place this is! ________ (4) Will he get out soon? ________ (5) I don’t want to stay there any longer. ________ (6) Please give me some help. ________ The words we have learned Summary 05 2 1 4 2 1 3 二、短语中英互译 four main sentence types ________________________ 提出问题 ________________________ give a command or request ________________________ 抒发强烈情感 ________________________ conduct an electric charge ________________________ The phrases we have learned Summary 05 四种主要句子类型 ask questions 发出命令或请求 传导电荷 express strong feelings 三、连词成句，注意首字母大写与句末标点 (1) felt | he | an electric shock ____________________________________________________________ (2) how | clever | was | Benjamin Franklin ____________________________________________________________ (3) which silk string | conduct | an electric charge | wet or dry ____________________________________________________________ (4) look up | Darwin’s theory | on the Internet | please ____________________________________________________________ (5) what | amazing | a discovery | it is ____________________________________________________________ The sentences we have learned Summary 05 He felt an electric shock. How clever Benjamin Franklin was! Which silk string can conduct an electric charge, wet or dry? Please look up Darwin’s theory on the Internet. What an amazing discovery it is! The grammar we have learned Summary 05 四、句型改写 He is a clever scientist.（改为 What 引导感叹句） _______________________________________________________________ The silk string can carry electricity.（改为一般疑问句） _______________________________________________________________ Read the history of Darwin.（改为否定祈使句） _______________________________________________________________ Franklin found the secret of electricity.（改为否定陈述句） _______________________________________________________________ We can learn much from great men.（改为 How 引导感叹句） _______________________________________________________________ What a clever scientist he is! Can the silk string carry electricity? Don’t read the history of Darwin. Franklin didn’t find the secret of electricity. How much we can learn from great men! Assessment 06 Self-assessment I can recognize and use four sentence types correctly. I can construct full sentences with correct capitals and punctuation； I can tell stories about great scientists using different sentence patterns. $