【优质公开课】Unit5 Power of ideas Section B 1a-1f课件2026—2027学年人教版九年级英语上册

这是一份初中英语人教版（2024）九年级上册（2024）1a-1f公开课ppt课件，共40页。PPT课件主要包含了Compass，Gunpowder，Printing，something，somebody’s，Para2，Para34，Para4等内容，欢迎下载使用。
Learning Objectives
By the end f this lessn, we will be able t:1. Use past passive vice and sequence wrds t describe the prcess f making paper. 2. Analyze the prblem-slutin-impact structure and evaluate Cai Lun’s cntributin.3. Sequence the paper-making steps and retell the prcess using the passive vice.
What are the fur great inventins in China?
Paper-making
Which ne d yu think is the mst imprtant? Why?
What material are these things made f?
Find mre things that are made f this material.
Title: An Inventin That Changed the Wrld
The passage is mainly abut____________________.
an inventin
What inventin is the text abut?
Think and share
What d yu knw abut the papermaking?
Paragraph 1 Paragraph 2 Paragraph 3 Paragraph 4 Paragraph 5
A. Early materials t write nB. Cai Lun’s experiment was successfulC. Papermaking shaped the mdern wrldD. Hw paper changed the wrldE. Cai Lun’s creative idea
Read the text and match each paragraph with its tpic.
What’s the structure f this passage?
What’s the main idea f each part?
A. ①②/③④/⑤B. ①/②/③④/⑤
Part 1(para.1): intrductin
Part 2(para.2): prblem
Part 3(para.3&4): slutin
Part 4(para.5): impact
Cmmn structure abut inventins: Prblem → Slutin → Impact.
Find ut what these prnuns frm the text refer t.
It in Paragraph 1: ________his in Paragraph 3: ________It in Paragraph 5: ________it in Paragraph 5: ________This in Paragraph 5: ________
Tips: Lcate prnuns and find matching nuns ahead.
It in Paragraph 1: ________
① Lcate the prnun.
②Underline the sentence befre the prnun.
③Find matching nun and check if it makes sense.
papermaking
his in Paragraph 3: ________
It in Paragraph 5: ____________________
the papermaking technique
it in Paragraph 5: ____________________
the use f paper and printing
this in Paragraph 5: ____________________
the rapid increase in the number f bks
Materials t write n befre Cai’s paper
Cai Lun’s paper
What’s the difference between Cai Lun’s paperand materials t write n befre it?
Read again and cmplete the table.
What was it like?
What was used t make it?
Material t write n befre Cai Lun
It is difficult t use and stre r very expensive.
Animal bnes, brnze wares, stnes, wd, bamb, even silk and jute.
Cai Lun’s paper
It was sft, light, easy t make and use, and mst imprtantly, cheap.
Bark, certain plants, and ld clthes.
difficult t use and stre
very expensive
animal bnes, brnze wares, stnes, wd, bamb, and even silk
sft, light, easy t make and use
bark, certain plants, and ld clthes
Put the sentences in rder. Then retell the prcess f making paper in yur wn wrds.
A. The material was beaten, cut up, and mixed with water.B. All the ingredients were mixed and biled in water.C. The fibre was dried and pressed t frm paper.D. The liquid was pured ver a bamb screen, leaving just the fibre.
B. All the ingredients were mixed and biled in water.
A. The material was beaten, cut up, and mixed with water.
D. The liquid was pured ver a bamb screen, leaving just the fibre.
C. The fibre was dried and pressed t frm paper.
Retell the prcess f making paper in yur wn wrds.
Hw did papermaking make a difference t the wrld?
speed up the develpment f Chinese culture
change civilizatins arund the wrld
lead t a rapid increase in the number f bks
result in a new birth f knwledge
Discuss the questins.
What ther great inventins d yu knw that were made in ancient China? Hw was the wrld changed by them?What qualities d yu think a great inventr has?
The impact f the fur great inventins in China
What qualities d yu think a great inventr has?
Curisity — they ask questins and want t knw hw things wrk.
Creativity — they think f new ideas and new slutins.
Perseverance — they never give up, even when things get hard.
1. It, mre than any ther inventin, was respnsible fr the rapid...
Language Pints
respnsible /rɪˈspɒnsəbl/adj. 作为原因的；有责任的用法：形容词，常与 fr 搭配，表对… 负责、是… 的原因搭配：be respnsible fr 对… 负责；引起同义：accuntable 有责任的词形变换：respnsibility n. 责任例句：He is respnsible fr this prject.（他负责这个项目。）
2. the rapid spread f infrmatin that shaped ur mdern wrld.
shape /ʃeɪp/v. 塑造 n. 形状词形变换：shapes pl.用法：名词表形状，动词表塑造、影响同义：frm 形状；muld 塑造搭配：in the shape f 呈… 形状；shape ne's life 塑造人生例句：Cluds have different shapes.（云朵有不同的形状。）
3. This resulted in a new birth f knwledge.
result in 造成；导致用法：动词短语，后接结果，主语为原因搭配：result in truble 导致麻烦；result in failure 导致失败例句：Carelessness will result in mistakes.（粗心会导致错误。）同义：lead t 导致 lead t success 导致成功；lead t prblems 导致问题 Hard wrk leads t success.（努力工作会带来成功。）
4. This resulted in a new birth f knwledge.
birth /bɜːθ/n. 起源；诞生用法：不可数名词，指出生、诞生搭配：give birth t 诞生；the birth f …… 的诞生例句：The birth f the cmputer changed the wrld.（电脑的诞生改变了世界。）同义：beginning 起源词形变换：bear v. 生育→brn 过去分词
根据首字母及汉语提示，完成下列单词的拼写1. [传统文化] In the Chinese lunar calendar, each year is named after ne f the 12 animals based n the year f a persn's ___________ (出生).2. The schl rganized a science ___________ (作坊) where students culd build simple rbts by hand.3. Fr ___________ (某些) reasns, the inventin exhibitin has been pstpned until next mnth.4. Travelling by subway is ___________ (便宜的), while taking a private car is ___________ (昂贵的).5. We shuld keep up with the ___________ (迅速的) develpment f AI technlgy, r we will fall behind.
Ⅱ. 用括号内所给单词的适当形式填空6. This quiet park is a ___________ (suit) place fr reading and relaxing.7. There are sme huge ___________ (stne) n the path. Be careful nt t trip ver them.8. After years f planning, their dream f building a smart hme finally became a ___________ (real).9. Tw plice ___________ (ffice) were directing traffic at the busy crssrads.10. The beautiful clay pt is my wn ___________ (create). I made it in the art class.