资源简介

(共34张PPT)
新人教版（2024）八年级
上
Unit 4
Amazing Plants
and Animals
Section B 3a-3c
【阅读写作课】
通过本节课学习，学生能够：
通过阅读提取与蓝鲸相关的关键科学信息（包括体形特征、栖息地、食性、寿命及生态作用），并用表格进行系统整理。（学习理解）
以第一人称视角将科普说明文改写成拟人化的蓝鲸自述，准确转化原文中的科学事实。（应用实践）
主动学习和了解有关蓝鲸以及海洋生态系统的相关科学知识，理解蓝鲸在海洋生态系统中的重要作用，提高自身的海洋生态保护意识。（迁移创新）
It lives in the ocean.
It eats tiny animals in the sea.
People like watching it swim
It is the largest animal on earth.
Blue Whale
Lead-in
Watch the video.
What do you know about the blue whale
marine
mammal
biggest
animal
endangered
species
Place:
deep ocean
Food:
krill（磷虾）
...
Watch the video about bees.
Read the text and circle some interesting facts about Blue Whale.
Finish the mind map according to the text.
weight
Where
Food
Role in ecosystem
How long they live
While-writing
Finish the mind map according to the text.
as much as 200 tons
While-writing
Finish the mind map according to the text.
as much as 200 tons
Live in all oceans except the Arctic
Finish the mind map according to the text.
as much as 200 tons
Live in all oceans except the Arctic
Eat some of the tiniest animals in the ocean
While-writing
Finish the mind map according to the text.
as much as 200 tons
Live in all oceans except the Arctic
Eat some of the tiniest animals in the ocean
They can live up to 90 years.
While-writing
Finish the mind map according to the text.
as much as 200 tons
Live in all oceans except the Arctic
Eat some of the tiniest animals in the ocean
They can live up to 90 years.
Important
Please make an ID card for Blue Whale.
Blue Whale
Name：
Birthplace：
Lifetime：
Imagine you are a blue whale. Use the first person to rewrite the first paragraph.
3b
Hello everyone! My name is Billy the Blue Whale. I am ____________________________
_________________________________________________________________________.
I’m heavy, but I love ________________________________________________________
_________________________________________________________________________.
I live in __________________________________________________________________.
My favourite food is ________________________________________________________.
I can eat __________________________________________________________________.
the largest and heaviest animal
on earth. My weight is as much as 200 tons
swimming in the ocean. Many people like watching me swim, and
they think I am one of the most beautiful things to see
all oceans except the Arctic Ocean
some of the tiniest animals in the ocean
around four tons of them a day
Complete your passage about the blue whale based on the text in 3a.
3c
写作指导
文本体裁
话题分析
要求写完成段落的改写，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。
人称时态
以第一人称为主；以一般现在时为主。
Observe and think
What should we mainly pay attention to 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
weight
living area
food
amount of food eaten
preference
How to use the first person to rewrite the second paragraph
points
lifespan
role /function
importance
Now, you can exchange your writings with your partners to check each other’s writing.
Checklist Self-evaluation Peer-evaluation Teacher-evaluation
Clear structure
Topic sentence
More relative information
Right linking words
Right grammar
Right spelling
Good handwriting
Great Good Try harder I can live up to 90 years. When I die at sea, I become food for many kinds of animals living in and around the sea. This food lasts for over a year and helps to create a lively and healthy ecosystem. I play an important role in our world, so you must protect me.
For example
second paragraph
Why can’t we find blue whales in Arctic Ocean Read and find the answers.
The blue whale is the largest animal on Earth, but you won't find them in the Arctic Ocean. Why
The main reason is food. Blue whales love to eat Antarctic（南极洲） krill (磷虾). These tiny shrimp（虾） are super abundant（丰富的） in the Antarctic But the Arctic doesn’t have too much krill, so there isn’t enough food to live blue whales..
Also, the Arctic Ocean is often covered with thick sea ice. Blue whales need to come up to the surface to breathe, and the ice can block their way.
Finally, blue whales have always lived in warmer waters and around Antarctica. They are just not used to living in the Arctic.
Reason 1: No enough food
Reason 2:
Thick sea ice
Reason 3:
Warm waters
Post-writing
Read paragraph 2, and think about what is “Whale Fall”
Blue whales can live up to 90 years. When a blue whale dies at sea, it becomes food for many kinds of animals living in and around the sea. This food lasts for over a year and it helps to create a lively and healthy ecosystem. Blue whales play an important role in our world, so we must protect them.
Blue Whales are important in our world, we can not live without them. So we should protect them!
Why should we protect animals and plants
Because they are our friends and they help keep the balance of nature.
Summary
Summary
Exercise
1. The Great Wall is one of the most famous ______________ (landmark)地标 in China.
2. To finish this project on time, we need to work as_______ (hard) as we can.
3. The new employee worked very hard ________ (live) up to the manager's high expectations.
4. Advanced technology plays an important role in_____________ (protect) the environment nowadays.
landmarks
hard
to live
protecting
Language Points
句
讲
例
练
It can weigh as much as 200 tons. 它的重量可达200吨。
as+ 形容词或副词原级+as, 表示一样
She gets as many as eight thousand letters a month.
她每月收到多达8千封信。
As (more) as 4 million people watched today's parade.
多达400万的人观看了今天的游行。
many
Language Points
句
讲
例
练
Many people like watching blue whales swim. 很多人喜欢看蓝鲸游泳。
like to do/doing sth. 喜欢做某事
watch sb. do sth.观看某人做某事
She gets as many as eight thousand letters a month.
她每月收到多达8千封信。
翻译：我妈妈喜欢看我写作业。
My mom likes watching me do my homework.
Language Points
句
讲
例
练
They think it is one of the most beautiful things to see. 他们认为这是最美丽的事物之一。
one of+the +最高级+名词复数，表示“最···之一”
Destruction of the environment is one of the most serious challenges we face. 环境的破坏是我们所面临的最严峻的挑战之一。
It was one of the most peaceful (place) she had found.
places
Language Points
句
讲
例
练
Blue whales can live up to 90 years. 蓝鲸可以活到90岁。
live up to +年龄，活到多少岁； live up to不辜负（期望）；达到
She found it hard to live up to his high ideals.
她觉得很难达到他的高标准要求。
翻译：He failed to live up to his parents' expectations.
他辜负了父母的期望。
Language Points
句
讲
例
练
Blue whales play an important role in our world, so we must protect them. 蓝鲸在我们的世界中扮演着重要的角色，所以我们必须保护它们。
play an important role/part in··· 在······中扮演重要角色，起到重要作用
While technology is already part of our world, it shouldn't play such an important role in a learner's life.
虽然技术已经是我们世界的一部分，但它不应该在学生的生活中扮演如此重要的角色。
Everyone should play a role in (protect) the earth.
没有人能保护地球。
protecting
写一篇60词左右的短文，介绍蓝鲸并谈谈如何保护它。
制作一张英文保护海报，包含3个事实和2条倡议。
请根据你对“一鲸落，万物生”的了解，为鲸落这一现象写一个80词左右的文章。
https://www.21cnjy.com/recruitment/home/fine
Thanks!/ 轻质减负 高效备课 | 英语学科
Unit 4 Amazing Plants and Animals
Section B 3a-3c 学生自主学习单
（一）预备性知识及练习
任务A 词汇图式激活
1. 请写出5个你已知的海洋动物相关英文词汇：
________ / ________ / ________ / ________ / ________
2. 看图补全句子（蓝鲸的特点）
图片 句子补全
The blue whale is very ________. It lives in the ________.
任务B 句型预习检测
将左边的场景与右边的英文句型连线，并在括号内写出功能（如：描述特征 / 表达数量 / 说明年龄）。
场景 英文句型
描述蓝鲸体重 ( ) A. Blue whales can live up to 90 years.
表达蓝鲸食物 ( ) B. It can weigh as much as 200 tons.
说明蓝鲸寿命 ( ) C. Blue whales mainly eat krill.
比较蓝鲸大小 ( ) D. Blue whales are bigger than any other animals.
自评星级：☆☆☆☆☆
（二）基础性知识及练习
任务C 蓝鲸知识小测试
在括号内用√/× 判断下列关于蓝鲸的描述是否正确，在最后一栏补充1-2项你了解的蓝鲸知识。
蓝鲸知识 英文表达 正确(√)/错误(×)
蓝鲸是哺乳动物 Blue whales are mammals.
蓝鲸吃小鱼和虾 Blue whales eat small fish and shrimp.
蓝鲸可以在陆地上生活 Blue whales can live on land.
蓝鲸是世界上最大的动物 Blue whales are the largest animals in the world.
其他知识 Other:
任务D 蓝鲸信息提取（Information Extraction）
阅读下面的短文，提取关键信息并完成表格。
Blue Whales: Gentle Giants of the Ocean
Blue whales are amazing creatures. They are the largest animals on our planet. A fully grown blue whale can weigh as much as 200 tons. That is about the same as 30 elephants!
Blue whales live in oceans all over the world, except in the Arctic Ocean. They prefer deep waters where they can find plenty of food.
These gentle giants mainly eat krill, which are small shrimp-like creatures. A single blue whale can eat up to 4 tons of krill in one day!
Blue whales have a long lifespan. They can live up to 90 years, and some may even live longer.
信息类型 提取的信息
体重 (Weight)
栖息地 (Habitat)
食物 (Food)
寿命 (Lifespan)
任务E 句型结构练习
用as...as...结构完成下列句子：
1. A blue whale can weigh ____________________ 200 tons.
2. Blue whales are ____________________ gentle ____________________ dolphins.
3. The ocean is ____________________ deep ____________________ a mountain is high.
自评星级：☆☆☆☆☆
（三）拓展性知识及练习
任务F 思维导图补全
根据阅读内容和课堂所学，补全“蓝鲸”主题思维导图的空白部分（框架贴合课堂思维导图结构）：
任务G 第一人称改写练习
将下列第三人称描述的句子，改写成第一人称（以“蓝鲸比利”的视角）：
Blue whales are the largest mammals on Earth.
改写：________________________________________________
Blue whales eat 4 tons of krill every day.
改写：________________________________________________
Whale fall from blue whales helps feed many sea animals.
改写：________________________________________________
任务H 小组讨论与记录
与2名同学组成小组，围绕“保护蓝鲸”展开讨论，记录同伴的观点：
讨论问题 同伴1观点 同伴2观点
1. What problems do blue whales face now
2. What small things can we do to protect blue whales
3. Why should we care about protecting blue whales
自评星级： ☆☆☆☆☆
（四）挑战性知识及练习
任务I 蓝鲸自述短文写作（80词）
题目：My Life as a Blue Whale
提示：
① 第一段：介绍自己的身份和最显著的特征；
② 第二段：描述自己的生活习惯（住在哪里、吃什么等）；
③ 第三段：说说自己死后“鲸落”对海洋的意义。
要求：使用“as...as...”结构和至少3个核心词汇（mammal/krill/whale fall/ecosystem等），语法正确、语句通顺。
任务J “鲸落”主题创意卡片
设计一张“鲸落——海洋的温柔礼物”创意卡片，包含：
鲸落的简单定义（1句话）；
鲸落的2个生态作用；
为鲸落画1幅简笔画；
1句呼吁保护海洋的标语（如：“Love whale fall, love our ocean!”）。
（卡片设计区）
（简笔画区）
（标语区）
任务K 真实场景应用——海洋馆解说员
假设你是海洋馆“蓝鲸展区”的小小解说员，为游客撰写2-3句话的解说词，需包含：
① 蓝鲸的1个核心特征；
② 鲸落的作用；
③ 1句呼吁保护蓝鲸的话。
解说词：
自评星级： ☆☆☆☆☆
附：学习目标自测表（完成练习后自我评估）
学习目标（对应任务） 自评（★★★★★） 同伴/教师签字
1. 能识别并运用10个蓝鲸相关核心词汇（任务A/C）
2. 能通过阅读提取蓝鲸的关键信息（任务D）
3. 能正确运用“as...as...”结构描述特征（任务B/E）
4. 能将第三人称文本改写成第一人称自述（任务G）
5. 能写80词蓝鲸自述短文（任务I）
6. 能设计“鲸落”主题创意卡片（任务J）
7. 能完成海洋馆蓝鲸解说词撰写（任务K）

展开更多......

收起↑