初中英语2a-2d习题课件ppt

这是一份初中英语2a-2d习题课件ppt，文件包含AI赋能人教PEP九年级上册-Unit1TheChangingWorldSectionA2a-2d课件pptx、AI赋能人教PEP九年级上册-Unit1TheChangingWorldSectionA2a-2d教案docx、AI赋能人教PEP九年级上册-Unit1TheChangingWorldSectionA2a-2d习题docx等3份课件配套教学资源，其中PPT共37页， 欢迎下载使用。
互动思考 / Warm-up
思考：你在生活中见过哪些环境问题？你认为最严重的环境问题是什么？
What envirnmental prblems have yu seen in yur life? What d yu think is the mst serius ne?
沙尘暴天气 / Sandstrm
? Class Discussin
Share yur ideas with yur partner and list at least three envirnmental issues arund us.
课前导入：身边的环境问题提问
- ENGLISH CLASSROOM -
LEARNING OBJECTIVES
掌握环境相关核心词汇的含义与用法
Master cre vcabulary abut the envirnment.
能听懂关于环境改善的听力材料，完成对应习题
Understand listening materials abut envirnmental imprvement.
能使用所学表达讨论环境问题的解决方法
Discuss slutins t envirnmental prblems.
课前导入：本次课学习目标公示
Lk and match: What envirnmental prblems can yu see?
Less Farmland
Water Shrtage
Defrestatin
课前导入：环境问题实景展示
图8.1 沙尘暴天气示意图
? 学习小贴士 / Tip
sandstrm 是由 sand (沙子) 和 strm (暴风雨) 组成的合成词。常用于复数形式 sandstrms 来表示这种自然灾害。
Example Sentence
"Sandstrms are very cmmn in this area in spring."
春天这个地区沙尘暴很常见。
成片的优质耕地 / Fertile Farmland
/ˈfɑːmlænd/
"A lt ffarmlandhas been lst because f the sandstrms."
因为沙尘暴，大量农田流失了。
结构解析：because f + 名词/代词 (表示原因)
Example Sentence / 例句
We shuld try ur best t prtect the envirnment.
我们应该尽全力保护环境。
青山绿水的自然环境 (Envirnment)
The main prblem here islack fwater.
这里的主要问题是缺水。
核心词汇：lack f
Fdshrtageis a big prblem in many pr cuntries.
粮食短缺是很多贫困国家的大问题。
/tekˈnɒlədʒi/
例句 / Example
We can use mderntechnlgyt imprve the envirnment.
我们可以用现代技术改善环境。
现代科技（如智慧农业、清洁能源）在保护和改善我们赖以生存的生态环境中发挥着关键作用。
It isdifficultt plant trees in sandy sil.
在沙质土壤里种树很困难。
核心词汇：difficult
Task Instructins
任务要求：将以下问题从1到4排序，1代表最严重，并给出你的理由。
Rank the fllwing prblems frm 1 t 4 (1 means the mst serius) and give yur reasns.
03 2a任务要求说明
2a任务：问题含义拆解
Match the Meanings
Life & Prductin Difficulties
Reductin f Farmland
Shrtage f Resurces
Frequent Sandstrms
Envirnmental Degradatin
Lack f Technlgy
Srting Criteria
Degree f impact n daily life
Level f difficulty in slving it
Range f peple affected
2a任务：排序规则讲解
Let's wrk tgether and share ur ideas!
4人一组，5分钟讨论时间
每组统一排序结果，每人准备1条理由
讨论结束后每组派代表发言
- COOPERATIVE LEARNING -
Grup Discussin Activity
? Discussin Tips
Active participatin is key! Speak clearly and listen t yur classmates plitely.
2a任务：小组讨论要求
发言模板 (Speaking Template)
Our grup thinks the wrst prblem is, because .
The secnd wrst prblem is , because .
2a任务：成果展示指引
参考排序 / Reference Ranking
参考理由 / Reference Reasn
Reasn:Sandstrms affect peple's daily lives directly, and they will make farmland less and less.
03 2a任务：参考答案示例
LISTENING BACKGROUND
Gerge's Father
Li Rui's Grandfather
Tpic: Envirnmental changes and
imprvement measures.
对话围绕某地区的环境变化与改善措施展开。
04 听力训练：2b听力背景介绍
- THE CHANGING WORLD -
First Listening Task
Listen t the cnversatin and find ut
which f the prblems in 2a they
听对话，找出2a的问题中他们提到了哪几个？
Tip: Fcus n key wrds likesandstrms,farmland, andenvirnment.
04 2b听力：第一遍任务说明
What envirnmental prblems are mentined in the reprt?
请核对第一遍听力中提到的三个主要环境问题：
farmlandshrtage
envirnmentdeteriratin
04 2b听力：第一遍听力核对答案
- UNIT 2 THE CHANGING WORLD -
Listen again and cmplete the table.Hw has the envirnment affected lcal peple's lives?
第二遍听力任务：补全表格内容，思考环境如何影响了当地人的生活？
04 2b听力：第二遍任务说明
Listen t the tape and fill in the blanks in the table belw.
There used t be
all the time, and the
were getting smaller
and smaller. Lcals wrked by
. Lcals fund a bush. It had rts that
the sil tgether.
They began planting it in sandy
with the gvernment's supprt. They
The crnfields are
. They have planted many bushes and
since then. There are
sandstrms nw and the envirnment is
. It has imprved lcal lives.
2b听力：填空表格展示
Past 板块答案 (Answers fr the Past):
There used t be sandstrms all the time, and the farmlands were getting smaller and smaller.
Lcals wrked by hand. Lcals fund a bush. It had rts that culd hld the sil tgether.
2b听力：第二遍听力核对答案（过去板块）
They began planting it in sandy areas with the gvernment's supprt.
They had technlgy t help.
04 2b听力：第二遍听力核对答案（行动板块）
Present 板块答案
Let's check the answers tgether:
The crnfields arebigger. Theyhave plantedmany bushes and trees since then.
There arefewersandstrms nw and the envirnment is gettingbetter. Ithas imprvedlcal lives.
Pay attentin t the cmparisn f "Past" and "Present".
Green bushes and trees in the area
Grammar Fcus
•Present Perfect Tense:have/has + past participle
•Key Structures:have planted, has imprved
•Time Marker:since then
2b听力：第二遍听力核对答案（现在板块）
1. used t d sth.
2. 比较级 + and + 比较级
Fcus n Grammar
smaller and smaller
better and better
The air used t be fresh.
Practice Makes Perfect
2b听力：原文重点解析
讨论 2b 中的问题是如何被解决的。
The area used t be cvered with sand.
What did they d t slve this prblem?
They planted bushes and trees. The land has becme better.
2d任务说明与对话模板
- CLASSROOM DISCUSSION & PRESENTATION -
2d 小组讨论与展示要求
1. 两人一组，自行创设对话，尽量用到本次课所学词汇和句式
Wrk in pairs t create yur wn cnversatins. Try t use the vcabulary and sentence structures learned in this class.
2. 准备时间3分钟，之后邀请几组同学上台展示
Preparatin time: 3 minutes. Several pairs will be invited t present their dialgues t the class.
envirnment环境
sandstrm沙尘暴
lack / shrtage缺乏/短缺
difficult困难的
过去常常 (表示过去与现在的对比)
wrse & wrse
越来越差 (比较级的叠加用法)
Itused tbe green, but nw it iswrse and wrse.
1. Catch Key Wrds
听力中快速捕捉环境核心词
2. Cntrast Past & Nw
口语中对比过去与现在的环境
3. Give Slutins
针对环境问题提出改进建议
06 课堂小结与知识点梳理
Recite and cpy the cre vcabulary 3 times.
背诵本次课所学核心词汇，每个抄写3遍。
Read the 2b listening script 3 times fluently.
跟读2b听力原文3遍，做到流利朗读。
Write 5 sentences abut lcal envirnmental changes.
写5句话描述你所在城市近年的环境变化。
Hmewrk 课后作业