英语九年级上册（2024）3a-3c精品课件ppt

这是一份英语九年级上册（2024）3a-3c精品课件ppt，共16页。PPT课件主要包含了教学目标，学习重难点，Free Talk，lead-in，Show Time，Summary，Homework等内容，欢迎下载使用。
Pst-writing
Pre-writing
While-writing
1. 了解莱特兄弟发明飞机的历史，认识航空发展史；2. 感受发明家坚持不懈、观察自然、勇于探索的科学精神；3. 理解发明对人类生活、全球交流的巨大改变。
1. 通过略读、寻读提取文章关键信息（发明者、发明原因、困难、影响）； 2. 小组合作完成讨论、笔记、海报制作，提升合作探究能力； 3. 学会梳理说明文写作框架，掌握发明类作文写作模板。
1. 梳理文本逻辑，培养归纳、概括信息的逻辑思维； 2. 辩证思考发明的利弊，自主思考生活中有用的发明； 3. 学会评价他人作品，客观表达观点。
1.学习重点1. 掌握发明类说明文的阅读方法，快速抓取核心信息； 2. 熟练运用固定写作模板完成发明主题短文写作； 3. 短语 be lking t d sth 的用法。 2.学习难点1. 梳理飞机发明的完整过程（滑翔机试验→解决飞行难题→加装发动机）；2. 灵活运用句型完整、流畅地介绍一项发明； 3. 海报展示环节清晰、有条理地口头介绍自己的发明海报。
What is it?
glider /ˈɡlaɪdə(r)/ n. 滑翔机
Wh was first t invent it?
Orville Wright and Wilbur Wright
左：威尔伯・莱特 Wilbur Wright（1867–1912）右：奥维尔・莱特 Orville Wright（1871–1948）
1911莱特滑翔机空中试飞
Read the text and cmplete the chart.
The inventin f the plane has greatly changed the wrld.Hwever, it seems that its inventrs, Orville Wright and Wilbur Wright, were nt lking t change the wrld at all. Rather, they just wanted t fly like birds.
Task1 : read paragraph1 and fininsh the first chart
Paragraph 1
What was invented?
Wh were the inventrs?
Why was it invented?
Because the inventrs wanted t fly like birds.
T slve the prblem f heavier-than-air flight, the Wright brthers began wrking with gliders. There were tw main challenges. The first was hw t get the glider int the air. The secnd was hw t cntrl it nce it was flying. Fr bth prblems, they fund their slutins by lking at hw birds flew. After they slved these prblems, they added an engine t the glider. Then, in December 1903, the wrld’s first plane flights were made.
Task2 : read paragraph2 and fininsh the first chart
Paragraph 2
What challenges were met?
Hw was it invented?
When was it invented?
Hw t get the glider int the air.Hw t cntrl the glider nce it was flying.
In December 1903.
The Wright brthers studied hw birds flew t slve the flight prblems, then added an engine t the glider.
The inventin f the plane has made ur travels arund the wrld much easier and faster. Jurneys that nce tk days, weeks, r even mnths, can nw be made in nly a few hurs. As a result, cmmunicatin amng peple in different cuntries is nw much easier, and the wrld has becme a much smaller place.
Task3 : read paragraph3 and fininsh the first chart
Paragraph 3
What was its effect?
It made ur travels arund the wrld much easier and faster,cmmunicatin amng peple in different cuntries is nw much easier, and the wrld has becme a much smaller place.
Chse a great inventin yu are interested in. D sme research and make ntes abut it.
____________ was invented by _____ in _______ .
The telephne
• It was invented because ____________________________________ __________________________________.
way t cmmunicate ver lng distances
peple wanted a faster and mre cnvenient
• It was made f / frm _______________.
metal and plastic
• The inventr had difficulties in _____________________________ ____________.
testing and imprving the sund
transmissin
• The inventin was respnsible fr / led ________________________ ____________________.
t the rapid develpment f
glbal cmmunicatin
Write abut the inventin yu have chsen using the infrmatin frm 3b.
•____________ was invented by _____ in _______ .
Task1: wrk in grup and discuss, then fill in the blanks
The airplane was invented by Wilbur Wright and Orville Wright in 1903.It was invented because peple had lng dreamed f flying in the sky, and early flying machines were unstable and unsafe. The Wright brthers wanted t create a cntrllable and pwered flying machine fr human was made f / frm spruce wd, muslin fabric and lightweight metal parts.The inventr had difficulties in keeping the flying machine balanced, cntrlling its directin, and designing a light but pwerful engine.The inventin was respnsible fr / led t the birth f mdern aviatin and changed the way peple travel, transprt gds and fight wars all ver the wrld.
Task2: shw time
1. be lking t d sth 意为打算/计划/想要做某事（侧重：心里有 明确目标、主动计划去做，区别于单纯“想要”）
2. 基本结构：主语 + be动词 + lking + t d（动词不定式）
3. 同义替换： = plan t d sth = intend t d sth = want t d sth（语气更弱）
1. My brther ____ imprve his English, s he reads English every mrning. A. lking t B. is lking t C. lks t D. was lking
2. 翻译句子。 我们打算参加学校的发明展。
We are lking t take part in the schl’s inventin exhibitin.
Language pints
Wrk in grups. Discuss what inventins that yu like best. Make a pster abut yur inventin. The pster shuld include:
• the name f the inventin • a picture f it• what it is made f / frm • what it is used fr• what effect it has n peple’s lives
Present yur pster in the exhibitin. Vte fr yur favurite nes.
02.Chse t d
选择你最喜欢的一份海报并告诉你的父母你最喜欢的发明物。
Memrize the new wrds, expressins and sentences in Sectin B (3a).