Unit 3 Grammar 课件 2025-2026学年沪教版（2024）英语八年级上册

该初中英语课件聚焦形容词不规则比较级（good/better/best, bad/worse/worst, far/farther/further）及(not) as...as结构，以“发明对生活的影响”为主题。课堂导入从轮子发明的作用切入，通过回顾发明改变交通、商业等具体影响，逐步过渡到语法规则，形成“具体语境—抽象语法—实际运用”的学习支架，帮助学生构建知识脉络。 其亮点在于融合语言能力、思维品质与学习能力培养：语言能力方面，通过发明相关对话练习（如讨论轮子与塑料袋的利弊）、角色扮演（记者采访路人），提升学生在情境中的语言表达；思维品质上，对比不同发明的影响（如印刷机与电脑），培养分析比较能力；学习能力方面，设置自我评估表和分层作业（必做+选做，如与家人讨论新旧发明差异），引导主动学习。采用任务型教学，学生在运用语法描述发明时深化理解，教师可借助多样化练习和评估工具提高教学效率。

Unit 4 Inventions Grammar 1 02 Learning objectives By the end of this lesson, I can: 01 Master the usage of the comparative and superlative forms of “good” “bad”and “far” and the usage of “(not)as ...as” Combine the irregular adjective forms and “(not) as ... as” structure to talk about some great inventions. Review in search of new places to live and better sources of food on foot travel further and faster started to ride horses Review used wheels to transport people and thing to places far awary changed the way villages, towns and even countries did business with each other build all types of amazing machines The wheel was invented. Review a few thousand years ago 6,000 years ago Thanks to the wheel, people can travel faster and farther. It has improved people’s lives. 100,000 years ago Review Many inventions make people’s lives better. For example, the invention of the wheel allowed people to travel farther distances. However, there are bad inventions too. A magazine once picked the top ten worst inventions in human history, such as cigarettes and plastic bags. Many people think these inventions make the world a worse place to live in. Grammar According to the passage, cigarettes and plastic bags have made our lives worse. Which invention has made our lives better, according to the passage? Which inventions have made our lives worse? The writer thinks the wheel has made our lives better. Grammar Wheel Telephone Computer Plastic bag Printing a. Types and draws things with it b. Communicates over long distances c. Makes travelling faster d. Pollutes the soil / white pollution e. Helps spread knowledge c d e b a Grammar S1: What do you think of the wheel / plastic bag / ...? S2: I think it is useful / helpful / important / harmful / bad / ... S1: How does it make our lives better / worse? S2: Thanks to the invention of ..., we can ..., our lives are becoming better. / The invention of ... made / has made people’s lives worse. ... ... Grammar Summary Adjective Comparative adjectives Superlative adjectives good bad far better best worse worst farther/further farthest/furthest Attention farther和further都是far的比较级，表示“（空间、距离或时间上）更远的；较远的”时，两者可以相互转换。 farther和further的异同 最高级the farthest/furthest的用法和比较级的用法类似。 (2) further可以用于抽象概念的比较，表示“（程度上）更进一步的；更深远的”，farther则没有这个意思。 Look at the school report below. In pairs, ask and answer questions about it. Practice 1. S1: Who ______________ in Art, Belinda or Daisy? (good) S2: ________________________________________ 2. S1: Who ________________ in Art? (good) S2: ________________________________________ got a better mark Daisy got a better mark in Art than Belinda. got the best mark Alice got the best mark in Art. Example: Practice 3. S1: Who _________________ in Science, Paul or Martin? (good) S2: ______________________________________. 4. S1: Who _________________ in Science, Eric or Alice? (bad) S2: ______________________________________. got a better mark Paul got a better mark in Science than Martin got a worse mark Eric got a worse mark in Science than Alice Practice Other irregular words Practice (not) as … as … = The Simpsons is as interesting as The Sponge Bob. ① The Simpsons is interesting. ② The Sponge Bob is interesting, too. Can you figure out the usage of “as … as” ? as … as …表示双方程度相同时的比较 Look and say We use (not) as … as to say that things or people are (not) equal in some way. Early computers were as big as a room. With electric lights, people can do as many things in the evenings as they can in the daytime. A candle does not produce as much light as a light bulb. We use (not) as ... as with the _________ of adjectives to compare things and people. We use (not) as ... as with many+the ___________ of a countable noun or much+an __________ noun to compare amounts. base form plural form uncountable Summary His room is as big as mine. He runs as fast as I do. You should keep the room as clean as your brother’s. 1. (not) as … as用于表示同级之间的比较, 中间可加形容词、副词原级。意思是“和……一样……”。 as + 形容词或副词原级 + as Summary 2. as … as的否定形式是not as … as，表示后者比前者强，意为“不如……那样”。not as ... as中第一个as可以用so替换，即not so ... as。 His room is not as/so big as mine. He doesn’t run as/so fast as I do. Robert is not as/so old as he looks. not as/so + 形容词或副词原级 + as Summary Look at the pictures below and complete the following sentences. 1. The Hotwave and the Micro-King ____________________(expensive) the Speedcook and the Superoven. 2. The Speedcook ___________(wide) the Superoven. Example: are not as expensive as is as wide as Practice Some historians have made a list of great inventions in the past 1,000 years. Look at the list and complete the conversation below with the correct form of the words in brackets.  Year Invention 1041-1048 movable type 1440-1450 printing press 1796 vaccine 1876 telephone 1879 light bulb Year Invention 1885 car 1895 radio 1903 airplane 1925 television 1940s computer Practice Su Wen: I think movable type is the (1)_______(good) invention in the past 1,000 years. Thanks to this, people could have books to read. Su Mei: Well, it is an important invention. However, I think the light bulb is an even (2)________(good) invention. It was hard to read and write at night before we had light bulbs. Which modern invention do you think is the most important? Su Wen: Definitely the computer. It has been almost (3)________________(important, as ... as) the movable type. Su Mei: The things on the list are all great inventions. After all, life would be much (4)_________(bad) without them! best better as important as worse Practice (1) Which invention do you think is more important, the printing press or the light bulb? Why? (2) Which invention do you think is the most important? Why? (3) What other inventions do you think are as useful as those on the list? Look at the list of the great inventions in the past 1,000 years in Exercise 1. Then ask and answer the questions in pairs. Discussion Which is the best invention of the past 1,000 years, according to Su Wen? Movable type. 2.Which invention does Su Mei think is better, the light bulb or movable type? The light bulb. 3.Which invention does Su Wen think is almost as important as moveable type? The computer. 4.If there weren’t any inventions, what would our lives be like according to Su Mei? It would be much worse without them. Discussion Work in pairs. Role-play a conversation between a journalist and a person on the street. Use the questions from Grammar in Use on page 58 and the timeline below to help you. Interview Interview Summary 1. 形容词的不规则变化：good, bad and far 2. (not) as … as用于表示同级之间的比较 Adjective Comparative adjectives Superlative adjectives good better best bad worse worst far farther/further farthest/furthest Self-assessment 评 价 内 容 1. 我能识别并写出常见不规则形容词的比较级。 1 2 3 4 5 2. 我能理解 “as + 形容词原级 + as” 的含义（表示 “和…… 一样……”）及否定形式 “not as/so + 形容词原级 + as”（表示 “不如……”）。 1 2 3 4 5 3. 能使用 “as...as” 句型描述两者的相同特征。 1 2 3 4 5 4. 能根据图片或提示信息，用两种句型完成简单句子表达。 1 2 3 4 5 Must-Do Tasks Read the text on P57 fluently. Use the comparative and superlative forms of “good” “bad”and “far” and “(not)as ...as” to make sentences. Homework Optional Tasks Talk with your family (like your parents or grandparents) about this question: "What’s the difference between the old inventions they used when they were young (such as flashlights, old bikes) and the new inventions now (such as LED lights, electric bikes)?" Homework Thank you! 33 $