初中英语人教版（2024）九年级上册（2024）Unit 5 Power of IdeasSection B1a-1f精品课件ppt

这是一份初中英语人教版（2024）九年级上册（2024）Unit 5 Power of IdeasSection B1a-1f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，lead-in，New words，Group Work，Summary，Homework等内容，欢迎下载使用。
Pst-writing
Pre-reading
While-reading
（1）了解蔡伦改进造纸术的历史、工艺流程与世界影响力；（2）感知中国古代四大发明对世界文明的贡献，增强文化自信与民族自豪感；（3）对比中外书写载体发展，理解文明交流的意义。
（1）掌握阅读策略：预判文章主题、识别代词指代、梳理文章结构、定位细节信息；（2）学会通过表格、排序、匹配等任务梳理文本信息，提升文本梳理能力。
（1）梳理说明文逻辑结构，培养逻辑思维；（2）思考发明家必备品质，培养创新、坚持、善于观察的思辨意识；（3）辩证思考发明对人类社会发展的推动作用。
1.学习重点1. 掌握本课生词与核心句型；2. 梳理文章四段式行文结构，掌握阅读预判、代词指代、细节定位阅读技巧； 3. 掌握蔡伦造纸完整工序，能用英文复述流程。2.学习难点1. 理解长难句：It, mre than any ther inventin, was respnsible fr the rapid spread f infrmatin that shaped ur mdern wrld. 2. 准确识别文中代词 it/this 的指代内容；3. 有条理复述造纸步骤，自主表达对发明家品质、古代发明的看法。
Let knw abut The Innvatr - Cai Lun (蔡伦)
Name｜姓名：Cai Lun (蔡伦), style name Jingzhng (敬仲)。东汉时期著名的宦官、发明家，以改进造纸术名垂青史。
Backgrund｜背景：生于桂阳郡（今湖南）。史料记载其“有才学，精工巧妙”，自幼聪慧机敏，对工艺制造抱有浓厚兴趣，为日后的发明奠定了基础。
Career｜仕途：入宫为宦后官至尚方令，主管皇家作坊。此职位让他得以接触各类原料与能工巧匠，掌握丰富的技术资源，成为改进造纸术的关键契机。
Character｜品格：史载其为人“尽心敦慎，数犯严颜，匡弼得失”，兼具才华、执着与正直的品格。
“伦乃造意，用树肤、麻头及敝布、鱼网以为纸。”——《后汉书·蔡伦传》
reality /rɪˈæləti/ n. 现实；事实papermaking /ˈpeɪpəˌmeɪkɪŋ/ n. 造纸工艺；造纸业respnsible /rɪˈspɒnsəbl/ adj. 作为原因的；有责任的rapid /ˈræpɪd/ adj. 迅速的；瞬间的shape /ʃeɪp/ v. 塑造 n. 形状brnze /brɒnz/ n. & adj. 青铜（的）；青铜色（的）ware /weə(r)/ n. 制品；陶器stne /stəʊn/ n. 石头；岩石jute /dʒuːt/ n. 黄麻纤维fibre /ˈfaɪbə(r)/ (= fiber) n. 纤维；纤维素expensive /ɪkˈspensɪv/ adj. 昂贵的；价格高的fficer /ˈɒfɪsə(r)/ n. 官员；高级职员
wrkshp /ˈwɜːkʃɒp/ n. 作坊；讲习班nne /nʌn/ prn. 没有一个；毫无ideal /aɪˈdiːəl/ adj. 最合适的；理想的 n. 理想；完美的人（或事物）bark /bɑːk/ n. 树皮certain /ˈsɜːtn/ adj. 某些；确定的 prn. （不提及人或事物的名称时用）某些suitable /ˈsuːtəbl/ adj. 合适的；适宜的liquid /ˈlɪkwɪd/ n. 液体 adj. 液体的cheap /tʃiːp/ adj. 便宜的 adv. 低廉地creatin /kriˈeɪʃn/ n. 创造；作品Arabic /ˈærəbɪk/ adj. 阿拉伯语的 n. 阿拉伯语birth /bɜːθ/ n. 起源；诞生
What material are these things made f ? Find mre things that are made f this material?
They are all made f paper
Read the text and answer the questins.
An Inventin That Changed the Wrld
Can yu imagine a wrld withut bks, newspapers, r magazines? All f these things depend n ne inventin—papermaking. It, mre than any ther inventin, was respnsible fr the rapid spread f infrmatin that shaped ur mdern wrld.In ancient China, many different materials were used t write n, such as animal bnes, brnze ware, stnes, wd, bamb, and even silk. In the Western Han Dynasty, there was als a very early frm f paper made frm jute—a fibre that cmes frm plants. Hwever, all f these materials were either difficult t use and stre, r very expensive.As the head fficer f the palace wrkshp fr the emperr in the Eastern Han Dynasty, Cai Lun became interested in trying t slve the prblem. Different methds fr creating smething t write n were tried, but nne were ideal. In his time, sme kinds f bark—the uter part f trees—were used t make clthes. Frm past experiences, Cai Lun gt the idea that bark, certain plants, and ld clthes culd be used t make a special material suitable t write n.In the first step f Cai Lun’s experiment, all the ingredients were mixed and biled in water. Then, this material was beaten, cut up, and mixed with water again. Next, the liquid was pured ver a bamb screen, leaving just the fibre. Finally, this fibre was dried and pressed t frm paper. T everyne’s surprise, this paper was sft, light, easy t make and use, and mst imprtantly, cheap. In 105 CE, Cai Lun shwed his creatin t the emperr. The emperr was very pleased and praised Cai Lun fr his great wrk.Later n, the papermaking technique nt nly speeded up the develpment f Chinese culture, but als changed civilizatins arund the wrld. It first spread t China’s neighburing cuntries and finally reached Eurpe thrugh Arabic cuntries in the 12th century. When the use f paper and printing came tgether in later centuries, it led t a rapid increase in the number f bks. This resulted in a new birth f knwledge, creating the wrld we have tday.
1. Hw many paragraphs in this passage?
2. What can we predict the tpic f this passage is?A. The prcess and glbal influence f Cai Lun’s papermakingB. Varius writing tls widely used in Western Han DynastyC. Hw ancient Chinese peple recrded histry n silk and bnesD. The develpment f printing in Eurpean cuntries in the 12th century
3. What is the structure f the whle passage?
A. Intrduce the imprtance f papermaking → talk abut early writing materials → describe Cai Lun’s papermaking prcess → shw its wrldwide influenceB. Raise a questin → list different pinins → give supprting examples → draw a final cnclusinC. Cmpare ancient and mdern paper-making methds → explain reasns fr changes → talk abut future develpmentD. Intrduce Cai Lun’s life stry → describe ancient Chinese culture → talk abut internatinal cmmunicatin
Paragraph 1 A. Early materials t write nParagraph 2 B. Cai Lun’s experimentParagraph 3 C. Intrductin t the tpicParagraph 4 D. Hw paper changed the wrldParagraph 5 E. Cai Lun’s creative idea
Read the text and match each paragraph with its tpic
Find ut what these prnuns frm the text refer t.
• It in Paragraph 1: ____________• It in Paragraph 5: ____________________________• it in Paragraph 5: ________________________• This in Paragraph 5: ________________________________
the papermaking technique
the use f paper and printing
a rapid increase in the number f bks
papermaking
Understanding reference wrdsNticing what prnuns refer t will help yu understand hw different parts f the reading are cnnected.
Read again and cmplete the table.
difficult t use and stre, r very expensive
sft, light, easy t make and use, cheap
animal bnes, brnze ware, stnes, wd, bamb, silk, jute
bark, certain plants, 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.
1. When did Cai Lun shw his new paper t the emperr? A. In the Western Han Dynasty B. In 105 CE C. In the 12th century D. After papermaking reached Eurpe2. Which f the fllwing is NOT the material Cai Lun used t make paper? A. Bark B. Old clthes C. Silk D. Plants3. Hw did papermaking reach Eurpe? A. Thrugh Arabic cuntries in the 12th century B. Directly frm China’s neighburing cuntries C. With the help f printing machines D. By ancient Chinese businessmen in Eastern Han4.What des the underlined wrd “ingredients” in Paragraph 4 mean? A. The machines peple use t cut wd B. All the materials needed t make paper C. Thin bamb tls fr drying paper D. Old clthes used t make daily clthes is the main idea f the passage? A. T intrduce ancient writing materials in ld China B. T describe the whle prcess f making paper by Cai Lun C. T talk abut the histry and great influence f Cai Lun’s papermaking D. T explain hw paper and printing changed Eurpean life
Read the text again , then discuss with yur partners and chse the right answers.
Discuss the questins.
1. What ther ancient Chinese inventins d yu knw? Hw was the wrld changed by them?
I knw the cmpass, gunpwder and printing. The cmpass helped peple travel and explre the wrld. Gunpwder changed wars and later helped with mining and cnstructin. Printing made knwledge spread mre easily arund the wrld.
2. What qualities d yu think a great inventr has?
A great inventr shuld be creative, hard-wrking and patient. They need t bserve life carefully, try many times, and never give up when they fail.
1.Wrds: papermaking, bark, fibre, ingredient, respnsible 2. Structure:Intr → Early writing materials → Cai Lun’s idea & prcess → Wrld influence 3. Paper-making steps: mix & bil → beat & cut → pur n screen → dry & press 4. Chinese inventins: paper, printing, cmpass, gunpwder
02.Chse t d
口头介绍一项自己最喜欢的中国古代发明，录制 1 分钟口语片段。
背诵本课单词；完成课后基础练习题