初中人教版（2024）Unit 4 Amazing Plants and Animals Section B 3a-3c教课ppt课件

这是一份初中人教版（2024）Unit 4 Amazing Plants and Animals Section B 3a-3c教课ppt课件，共39页。PPT课件主要包含了 ， Lead-in，Free talk，文本变视频，looks ，habitat，food ，lifespan，weight ，单元写作任务等内容，欢迎下载使用。
能够基于写作需求，在阅读 3a 信息、分析 3b 表述后，梳理 “介绍蓝鲸” 类文本的结构，结合 3c 呈现的内容，列出自己文本中对应 “基本特征 — 生活习性 — 生态意义” 的内容要点​。（学习理解）
能够将本单元所学与蓝鲸、海洋生物相关的词汇、描述事物的句型（如 the largest...、 in... 等）迁移应用到自己介绍蓝鲸的文本写作中。（应用实践）
通过本课时学习，我们能够：
Learning bjectives
通过自评和互评，改进写作初稿，优化语篇结构（让信息呈现顺序更合理）、明确内容细节（清晰描述蓝鲸的各方面特点）、打磨语言表达（修正句型、选用恰当词汇），提升介绍类文本的写作质量。（迁移创新）
Guessing-game
I am a mammalI am the biggest f all living animalsI just eat the smallest creatures in the ceanI als eat krillI like krill the bestI have n teeth
What d yu knw abut the blue whale?
Hw much d they weigh? Where d they live? What d they eat? Hw lng d they live? Hw ften d they have babies? Hw d they cmmunicate with each ther? ...
What else d yu want t knw abut blue whales?Can yu raise sme questins?
Pre-reading
Learn smething abut blue whale
Read the text abut the blue whale.
The Blue WhaleThe blue whale is the largest and heaviest animal n earth. It can weigh as much as 200 tns. Many peple like watching blue whales swim, and they think it is ne f the mst beautiful things t see. Blue whales live in all ceans except the Arctic Ocean. They eat a lt, but they eat sme f the tiniest animals in the cean. A blue whale can eat arund fur tns f these a day.Blue whales can live up t 90 years. When a blue whale dies at sea, it becmes fd fr many kinds f animals living in and arund the sea. This fd lasts fr ver a year and it helps t create a lively and healthy ecsystem. Blue whales play an imprtant rle in ur wrld, s we must prtect them.
Read alud tgether
While-reading
as much as 200 tns
in all ceans except the Arctic Ocean
sme f the tiniest animals inthe cean
up t 90 years
play an imprtant rle;When a blue whale dies, it becmes fd fr many animals and it helps t create a lively and healthy ecsystem.
Read and cmplete
Read the text and cmplete the table.
Read again and answer the questins
Q2:hw much fd can a blue whale eat in a day?
Arund fur tns.
Q1:Why d peple like blue whales
Q3:What happens when a blue whale dies？
It becmes fd fr animals living in and arund the sea and helps t create a lively and healthy ecsystem.
Because many peple like watching blue whales swim, and they think it is ne f the mst beautiful things t see.
The blue whale is ____________________________ n earth. It can ________________________ 200 tns. Many peple like watching blue whales swim, and they think it is __________________________________. Blue whales live ________________________ the Arctic Ocean. They eat a lt, but they eat ___________________________________. A blue whale can eat arund fur tns f these a day.Blue whales can_____________ 90 years. When a blue whale dies ______, it becmes fd fr many kinds f ______________________________. This fd lasts fr ver a year and it ________________________________________. Blue whales ________________________ in ur wrld, s we must prtect them.
Retell the text by filling the blanks
the largest and heaviest animal
weigh as much as
ne f the mst beautiful things t see
in all ceans except
sme f the tiniest animals in the cean
animals living in and arund the sea
helps t create a lively and healthy ecsystem
play an imprtant rle
Pst-reading
the tiniest cean animals; fur tns a day
prvide a lt f fd after they die; play an imprtant rle in ur wrld
can live up t 90 years
Retell the text based n the table.
It tells us many facts abut the blue whale
A. narratin(记叙文)B. expsitin(说明文)C. argumentatin(议论文)D. practical writing(应用文)
Analyze the text type
What’s the type f the article?
Prtectin call
Eclgical rle
Basic facts
Analyze the structure
ppularity
Imagine yu are a blue whale. Use the first persn t rewrite the first paragraph.
Hell everyne! My name is Billy the Blue Whale. I am ____________________________________________________________ I’m heavy, but I lve __________________________________________________________________________ _______________________. I live in ___________________________. My favurite fd is _________________________________I can eat __________________________.
My weight is as much as
mst beautiful things t see
all ceans except the Arctic Ocean
sme f the tiniest
arund fur tns f them a day
animal n earth.
the largest and heaviest
in the cean. Many peple like watching
me swim, and they think I am ne f the
animals in the cean.
人称由第三人称变成第一人称
Pst-writing
Rewrite the first paragraph
What shuld we mainly pay attentin t when rewriting an article?
人称:由第三人称变成第一人称
内容要点: 要点不能省略或者遗漏
语言: 个别句子需要变化结构
living area
preference(喜好)
Observe and think
要求完成段落的改写，主要改写内容为3a第二段的内容，涉及到蓝鲸的寿命和对生态环境的重要性等内容。
本文将第三人称的段落内容，改写为第一人称的段落内容。分析原文章属于介绍类文章，改写后，还是自身特性介绍，因此是说明文。
以第一人称为主；以一般现在时为主。
Rewrite the secnd paragraph
Hw t use the first persn t rewrite the secnd paragraph?
rle /functin
__________________________________________________________________________________________
① We can live up t 90 years.
① Blue whales can live up t 90 years. ② When a blue whale dies at sea, it becmes fd fr many kinds f animals living in and arund the sea. ③ This fd lasts fr ver a year and it helps t create a lively and healthy ecsystem. ④ Blue whales play an imprtant rle in ur wrld, s we must prtect them.
② When I die at sea, I becme fd fr many kinds f animals living in and arund the sea.
① Blue whales can live up t 90 years. ② When a blue whale dies at sea, it becmes fd fr many kinds f animals living in and arund the sea. ③ This fd lasts fr ver a year and it helps t create a lively and healthy ecsystem. ④ Blue whales play an imprtant rle in ur wrld, s we must prtect them.
④ We play an imprtant rle in the wrld, s peple must prtect us.
I can live up t 90 years. When I die at sea, I becme fd fr many kinds f animals living in and arund the sea. This fd lasts fr ver a year and it helps t create a lively and healthy ecsystem. I play an imprtant rle in ur wrld, s yu must prtect us. Wuld yu like t d that? Thank yu, my human friends! ...
add interactive sentences
Sample writing
某英文报社正在征集以保护动植物为题材的文章。请选择一种你熟悉或喜爱的动物（例如：熊猫、蜜蜂、青蛙、海豚、竹子、猎豹等），以第一人称（“I”）的角度，写一篇自我介绍，向该报社投稿。要点:1. 你的基本信息（身份，栖息地与饮食等）2. 你在自然界的角色或你对生态系统的作用 （例如：传播种子、控制害虫、成为食物链的一环等）3. 呼吁人类关心和保护你以及你的家园要求:1. 文中不能出现真实校名和姓名;2. 词数不少于***，开头已给出，不计入总词数。
Hell, everyne! I'm a _________ and let me intrduce myself t yu.___________________________________________________________________________________________________________
Why shuld we prtect animals and plants?Because they are ur friends and they help keep the balance f nature.
Save animals，save ur future！
The blue whale is the largest and heaviest animal n earth. It can weigh as much as 200 tns. Many peple like watching blue whales swim, and they think it is ne f the mst beautiful things t see. Blue whales live in all ceans except the Arctic Ocean. They eat a lt, but they eat sme f the tiniest animals in the cean. A blue whale can eat arund fur tns f these a day.
/ˈəʊʃn/ n. 大海；海洋
/ɪkˈsept/ prep. 除……之外；除了
tiny /ˈtaɪni/ adj. 极小的；微小的
Language pints
watch sb.d sth.观察某人做某事的全过程watch sb.ding sth.观察某人正在做...
含有“减去”之意The museum is pen daily except Mndays.博物馆除了周一每天都开放
Blue whales can live up t 90 years. When a blue whale dies at sea, it becmes fd fr many kinds f animals living in and arund the sea. This fd lasts fr ver a year and it helps t create a lively and healthy ecsystem. Blue whales play an imprtant rle in ur wrld, s we must prtect them.
lively /ˈlaɪvli/ adj. 精力充沛的；生机勃勃的
一个生机勃勃和健康的生态系统
play a(n) (+adj.) rle/part in …扮演一个重要的角色
many kinds f 许多种类的
death n.死亡dead adj.死的；去世的
live up t活到……岁；达到……的寿命
all kinds f 各种各样的different kinds f 不同种类的
1. Blue whales can live up t 90 years. 蓝鲸的寿命可达 90 年 。live up t 达到；符合（期望等）；活到（某一年龄、岁数等）例如：He always lives up t his parents' expectatins. 他总是不辜负父母的期望。【拓展】同义词reach 达到（某一数量、程度、年龄等 ）；在表示活到某一年龄时，可与 “live up t” 替换。Sme trees can reach a height f 30 meters. 有些树能长到 30 米高 。Sme peple can reach 90 years ld. 有些人能活到 90 岁 。
except, besides与but
They all went t the party except Ann.除了安，他们都去了聚会。We have a lt in cmmn besides music.除了音乐，我们还有很多共同点。There is n ne but me.这里除了我没有别人。
2. Blue whales live in all ceans except the Arctic Ocean. 蓝鲸生活在除北冰洋以外的所有海洋中。 except prep. 除······之外；除了
3.When a blue whale dies at sea, it becmes fd fr many kinds f animals living in and arund the sea. 当一头蓝鲸在海洋中死去时，它会成为生活在海洋里及海洋周边的多种动物的食物。living in and arund the sea 整体是现在分词短语作后置定语，修饰前面的 animals。eg:The by standing there is my brther. 站在那儿的男孩是我弟弟 (standing there修饰 the by)
Watch and learn
按要求写出正确的单词、词组或句子。
海洋 (名词) __________ 2. 除了 (介词) ___________3. 极小的(形容词) __________ 4. 生机勃勃(形容词) _______ 5. 和……一样重（短语) __________ 6. 活到(短语) __________7. 创造（动词）__________ 8. 保护（动词）________9. 蓝鲸是地球上最大和最重的动物。 ___________________________10. 蓝鲸可以活到90岁。 _______________________ 11. 蓝鲸在我们世界中扮演重要角色。___________________
as much as
The blue whale is the largest and heaviest animal n earth.
Blue whales play an imprtant rle in ur wrld.
Blue whales can live up t 90 years.
SectinB 3a-3c 默写
The blue whale is the animal n earth. It can weigh 200 tns. Many peple like watching blue whales swim, and they think it is the mst beautiful things t see. Blue whales live in all ceans the Arctic Ocean. They eat a lt, but they eat sme f the animals in the cean. A blue whale can eat arund fur tns f these a day. Blue whales can 90 years. When a blue whale at sea, it becmes fd fr many kinds f animals living in and arund the sea. This fd lasts fr ver a year and it helps t create a ecsystem. Blue whales ur wrld, s we must prtect them.
largest and heaviest
lively and healthy
play an imprtant rle in
1.他一直努力达到父母的期望。He is always trying his best t _____ ____ _____ his parents' expectatins(期盼).2. 二十四节气在中国文化中起重要作用。The 24 slar terms _____ ____ _________ _________ _____ Chinese culture.3.假如鸟吃了有病的或死的鱼，它们可能会相继死去。If the birds eat the sick r dead fish, they may ________ ________.
live up t
play an imprtant part/rle in
die ff