人教版（2024）九年级上册（2024）Unit 1 The Changing WorldSection A2a-2d精品ppt课件

这是一份人教版（2024）九年级上册（2024）Unit 1 The Changing WorldSection A2a-2d精品ppt课件，共16页。PPT课件主要包含了wide，product，capital，soil，sandstorm等内容，欢迎下载使用。
Pre-listening
通过塞罕坝 “荒漠变林海” 的文本，感受中国生态文明建设奇迹，树立绿色环保意识；结合蒙内铁路合成词（railrad），感知中国对外基建援助、中外互利合作的大国担当；体会英语合成词构词逻辑，感受语言服务生活、反映社会发展的文化特点；
掌握看图猜词、拆分构词的词汇记忆策略，提升自主识词、猜词能力；通过小组配对游戏、合作读文、分层练习，培养合作探究、自主归纳语法规则的能力； 
逻辑思维：归纳三类合成词书写规则，拆分单词、推导词义，建立 “单词部件 — 整体词义” 逻辑链；对比思维：结合塞罕坝今昔图片，对比过去 sandy wasteland 与现在 green frest，借助 sandstrm、greenhuse 等合成词梳理环境变化；
（一）教学重点合成词定义、三大分类（闭合式 / 连字符式 / 开放式），掌握环境、交通类合成词；能拆分、匹配生成合成词，在语境中填空、造句运用；结合塞罕坝文本，借助合成词梳理生态变迁。（二）教学难点区分三类合成词书写格式，准确区分易混开放 / 闭合合成词；灵活运用合成词描述环境、交通变迁，实现词汇输出；结合文本深层理解塞罕坝绿色奇迹背后的奋斗精神，实现语言与育人融合。
Watch a vide.
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Cmpund wrds
Presentatin
Cmpund wrds （合成词）:是把两个或两个以上的独立单词组合在一起，形成的一个具有新意义的新词。
Let's learn.
Use a wrd n the left and a wrd n the right t create a cmpund wrd.
Cmplete the sentences with the wrds in the bx.
The rad used t be narrw and dirty. Nw, it is ______ and clean. The ______ made it cnvenient fr the villagers t travel acrss the river t the city.3. Beijing, China's ______, hsted the 2008 Summer Olympics and the 2022 Winter Olympics.4. Our farm has a lt f laying hens. They feed n ______, vegetables, and insects.5. A digital ________ is smething yu sell nline and desn't have a physical frm.
prduct     crn     bridge     wide     capital
Chse ne r tw wrds and make yur wn sentences.
Lk and Cmpare
This illustratin vividly cntrasts Saihanba's transfrmatin. Frm a deslate wasteland t a lush paradise, the visual difference tells a pwerful stry f envirnmental restratin and hpe.这幅插图生动展现了塞罕坝的沧桑巨变：从荒芜沙地蜕变为绿意盎然的林海，强烈的视觉反差诉说着一段生态修复、孕育希望的动人故事。
Barren sand, n trees, a yellw dusty sky, and a hard, unfrgiving life fr the peple wh lived there.
THE PRESENT
Lush green trees, a beautiful ecsystem, clean air, and a happy, sustainable life fr all.
In 1962, Wang Shanghai mved with his family frm their huse in Chengde t the ______ lands f Saihanba. There were few trees t hld the ______ tgether, and there were ften ___________. Temperatures were belw freezing during the winter. Life there was very difficult.With supprt frm the ____________, Wang Shanghai led a grup f 369 peple wh were determined t make the envirnment f Saihanba better. Over the next 60 years, wrkers planted ______ and trees, creating the wrld’s biggest man-made frest.Tday, Saihanba is knwn as "the green miracle". This is the ______ f hard wrk and peple wrking tgether. Nw, the land is cvered with green trees and the water is clean and fresh.
Cmplete the passage with the crrect frms f the wrds in the bx.
gvernment     bush     sandstrm     result     sandy     sil
A Stry f Change
Mr. Wang has witnessed the transfrmatin f Saihanba frm a barren wasteland t a lush frest ver the past decades. His life is intertwined with the green miracle.
This is Wang Shanghai.
Helivesin Chengde, a city nestled in the nrthern muntains f Hebei Prvince, clse t Saihanba.
Heis70 years ld nw. He has spent mst f his life bserving and learning abut the envirnment arund him.
Heknwsthe stry f Saihanba very well—every tree, every seasn, and the hard wrk f the fresters.
Read and answer
1. What was Saihanba like in 1962?
It was sandy with few trees. The sil culdn’t be held tgether, s there were many sandstrms. Winters were belw freezing and life was very hard.
2. What’s Saihanba like nw?
The land is cvered with green trees and the water is clean and fresh.
Because it used t be a sandy wasteland with n life, but nw it’s cvered with green trees and clean water. This transfrmatin is like a miracle.
We learn that with hard wrk, determinatin, and teamwrk, we can slve serius envirnmental prblems and create a better wrld.
1. The river is very ______ (wide / bridge), s we need a bat t crss.2. A _________ (capital / prduct) is smething yu buy r sell, like a phne r a bk.3. Beijing is the ______ (crn / capital) f China.4. After the strm, the ______ (sil / bush) was full f water.5. A ___________ (sandstrm / greenhuse) can make the sky turn range and reduce visibility.
Write 5 cmpund wrds related t nature r envirnment and use each in a sentence.
Draw a “befre and after” picture f Saihanba and write 3 sentences describing the change.