人教版（2024）九年级上册（2024）3a-3d评优课课件ppt

这是一份人教版（2024）九年级上册（2024）3a-3d评优课课件ppt，共16页。PPT课件主要包含了Review，Summary，lead-in，Exercise，Homework，教学目标，学习重难点， radio，Free Talk，Lead-in等内容，欢迎下载使用。
Presentatin
了解无线电发明者马可尼的历史贡献，感受发明对人类信息传播、生活、文娱的巨大改变；感受古今信息传递方式的差异，体会科技进步的价值。
学会听读抓取关键信息（发明者、时间、发明影响）；学会用思维导图梳理发明类文本信息；能自主合作完成口语表达任务。
学会辩证评价发明的作用，培养逻辑表达能力；能对比不同发明的优缺点，形成独立观点。
1.学习重点听力、阅读中抓取发明相关关键信息；掌握被动语态句式：infrmatin was travelled /message was sent；运用句型谈论最喜欢、最有用的发明并阐述理由。 2.学习难点被动语态在语境中的理解与口头运用；有条理、分点描述一项发明带来的改变。
high-speed train
mbile phne
The greatest inventins f the 21st century
A: What d yu think is the mst useful/ imprtant inventin in ur life?B: I think ... is the mst useful / imprtant inventin in ur life. Because ...
invent (v)发明；创造___inventatin (n) 发明
Read the cnversatin and answer questin.
Fu Xing: What d yu think is the mst useful inventin f all time, Peter?Peter: It has t be the radi.Fu Xing: The radi? Why?Peter: Befre the radi was invented, infrmatin travelled very slwly. The wrld was made much smaller by the radi. Suddenly, news culd be spread arund the wrld in secnds.Fu Xing: Right. Wh was the inventr?Peter: An Italian inventr called Guglielm Marcni. He develped the idea in the 1890s. In 1901, a radi message was sent acrss the Atlantic Ocean fr the first time.Fu Xing: Ww! That was quite a distance at that time.Peter: Yeah. And because f the radi, sme ther imprtant inventins were develped as well.Fu Xing: Like the televisin?Peter: That’s right. It als had a big effect n music. The radi made it much easier fr peple t enjy music frm artists arund the wrld.
1. What des Peter think is the mst useful inventin f all time?
Listen t the cnversatin and answer questins.
1. Wh invented the radi and when did he send the first radi message acrss the Atlantic Ocean?A. Guglielm Marcni, in 1901B. Guglielm Marcni, in the 1890sC. An American inventr, in 1901
2. Which inventin came ut partly because f the radi? A. The cmputer B. The televisin C. The camera
Read again and cmplete the chart.
Inventin:___________
Wh was the inventr?___________________
Guglielm Marcni
When was it invented?___________________
Hw did it change the wrld?
The wrld was made much smaller by the radi. News culd be spread arund the wrld in secnds.
Because f the radi, sme ther imprtant inventins were develped as well.
The radi made it much easier fr peple t enjy music frm artists arund the wrld.
•________________________________________________________________
•__________________________________ ___________________
•_____________________________________________________________________
Listen t the cnversatin and repeat and pay attentin t hw the key infrmatin is stressed.
Fu Xing: What d yu think is the mst useful inventin f all time, Peter?Peter: It has t be the radi.Fu Xing: The radi? Why? Peter: Befre the radi was invented, infrmatin travelled very slwly. The wrld was made much smaller by the radi. Suddenly, news culd be spread arund the wrld in secnds.Fu Xing: Right. Wh was the inventr?Peter: An Italian inventr called Guglielm Marcni. He develped the idea in the 1890s. In 1901, a radi message was sent acrss the Atlantic Ocean fr the first time.Fu Xing: Ww! That was quite a distance at that time.Peter: Yeah. And because f the radi, sme ther imprtant inventins were develped as well.Fu Xing: Like the televisin?Peter: That’s right. It als had a big effect n music. The radi made it much easier fr peple t enjy music frm artists arund the wrld.
“有史以来、所有时代中”
Please Rle-play the cnversatin.
Chse anther inventin that yu think is the mst imprtant and make a mind map abut it. Then describe it t a partner.
I think the mst imprtant inventin f all time is the Internet. It des nt have a single inventr, but scientists like Vint Cerf and Bb Kahn helped develp its cre technlgy in the late 1960s, and it became widely used by the public in the 1990s. The Internet has changed the wrld in many ways. First, it lets infrmatin travel arund the wrld in secnds, s peple can get news and knwledge much faster than befre. Secnd, it made it pssible fr ther great inventins like smartphnes and nline shpping t develp. Finally, it has changed hw we wrk, study, and cmmunicate with thers, making the wrld feel much smaller and mre cnnected.
NewWrds:invent v. 发明 — inventr n. 发明者 — inventin n. 发明spread 传播；effect 影响；Atlantic 大西洋New Phrasesf all time 有史以来in secnds 顷刻间have a big effect n 对…… 有巨大影响fr the first time 第一次New SentencesWhat d yu think is the mst useful inventin f all time?News culd be spread arund the wrld in secnds.A radi message was sent acrss the Atlantic in 1901.It had a big effect n music.
1. Peter thinks ______ is the mst useful inventin f all time. A. the TV B. the radi C. the cmputer 2. Guglielm Marcni develped the radi idea ______. A. in the 1890s B. in 1901 C. in the 1990s 3. The first radi message acrss the Atlantic was sent ______. A. in the 1890s B. in 1901 C. in 1960 4. Which inventin grew frm the radi? A. The camera B. The televisin C. The plane 5. The radi made ______ easier fr peple t enjy glbal music. A. it B. that C. this
02.Chse t d
Chse ne inventin that yu think is the mst useful and then describe it t yur partner.
熟读并背诵 1a 对话中的 3-5 个核心句子，体会对话中的情感逻辑与口语化表达。