资源简介

(共36张PPT)
Unit 4
Amazing Plants and Animals
人教版 英语（八年级上册）
Section B
3a-3c
01
02
03
04
教学目标
能够了解蓝鲸的一些内容；通过分析第一段的由第一人称改为第三人称的内容，了解到改写的注意点。
能够客观冷静地表达个人观点；通过观察，分析，总结等多种手段，深化发散性与总结性思维。
引导学生了解生物蓝鲸对于生态系统的重要性，从而进一步了解动植物对于生态系统的重要性。
能够通过各种写作活动，锻炼自己的写作能力；同时归纳总结各种议论文的写作要点。
2. Whose birthday is it
Pre-writing
01 写前
Watch a vedio
What does this video talk about
What do you know about the blue whale
The blue whale is the largest animal on earth.
Part 2. Read and learn
The blue whale is the largest and heaviest animal on earth. It can weigh as much as 200 tons. Many people like watching blue whales swim, and they think it is one of the most beautiful things to see. Blue whales live in all oceans except the Arctic Ocean. They eat a lot, but they eat some of the tiniest animals in the ocean. A blue whale can eat around four tons of these a day.
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.
在地球上
多达，达到…… 之多
/ n/ n. 大海；海洋
/ k sept/ prep. 除……之外；除了
tiny / ta ni/
adj. 极小的；微小的
live up to 达到；符合
lively / la vli/
adj. 精力充沛的；生机勃勃的
扮演一个重要的角色
Read the text and complete the table.
3a
Blue whale facts Weight
Where they live
Food
How long they live
Importance in nature
1.What do blue whales mainly eat
A) Large fish
B) Tiny ocean animals
C) Sea plants
D) Other whales
2.Where do blue whales NOT live
A) Pacific Ocean
B) Atlantic Ocean
C) Arctic Ocean
D) Indian Ocean
How much food can a blue whale eat in one day
A) One ton
B) Two tons
C) Three tons
D) Four tons
Blue whale facts Weight
Where they live
Food
How long they live
Importance in nature
as much as 200 tons
in all oceans except the Arctic Ocean
some of the tiniest animals in the ocean
up to 90 years
When a blue whale dies, it becomes food for many animals and it helps to create a lively and healthy ecosystem.
Check answers.
Map &Gap地图填空
Question1:Circle the areas where blue whales might be found.
Question2:Why no blue whales in the Arctic
Map &Gap地图填空
Q1:Circle the areas where blue whales might be found.
Q2:Because it is too cold/little food.
Status Analysis(现状分析)：The blue whale is endangered and there are approximately 10,000 of them remaining.(蓝鲸濒危,现存约1万头)
The threats they face include sonar interference
(声呐干扰), ship collisions(船舶撞击) and plastic pollution(塑料污染), which seriously affect the survival of blue whales.
The Current Situation and Threats of Blue Whales
Human Trouble List 人为麻烦清单
Question：Which human activities can harm blue whales
Answer：noise, plastic, over-fishing......
The group selects a question and writes an 1 English suggestion. Template:
“We should stop using too much plastic because…”
Complete your passage about the blue whale based on the text in 3a.
Protection Initiative Writing
Frame:“Blue whales are amazing because ____. But now they need help. We should ____ because ____.”
“What problems do blue whales face ”
Why should we protect animals and plants
Because they are our friends and they help keep the balance of nature.
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
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.
Post-reading(Writing)
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。
Group work
It's your turn!
The Blue Whale
Work in groups and write a report to introduce the blue whales.
1. Blue whales can live up to 90 years. 蓝鲸的寿命可达 90 年 。
达到；符合（期望等）
live up to
活到（某一年龄、岁数等）
He always lives up to his parents’ expectations.
他总是不辜负父母的期望。
An elephant can live up to sixty years.
一头象能活到60岁。
Language points
拓展
同义词 reach
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 to” 替换。
Some trees can reach a height of 30 meters.
有些树能长到 30 米高 。
Some people can reach 90 years old.
有些人能活到 90 岁 。
2. Blue whales live in all oceans except the Arctic Ocean.
蓝鲸生活在除北冰洋以外的所有海洋中。
（连词）除了,只是；除非
（介词）除……之外；除了
The restaurant is open every day except Monday.这个饭店除了星期一每天都营业。
其后接名词、代词等作宾语，表示某人或某物不包含在某一范围内。
except
I won’t go except you come with me.
除非你跟我一起去，否则我不会去。
My dress is similar to yours, except mine is blue.我的连衣裙和你的相似，只是我的是蓝色的。
辨析
except, besides与but
except 除……之外；除了 强调所排除的内容不包含在内，含有“减去”的意思
besides 除……之外（还有） 包括 besides 后面的内容，含有“加上”的意思
but 除……之外 与 except 用法基本相同。常用于no, nothing, anything 之后
They all went to the party except Ann.除了安，他们都去了聚会。
We have a lot in common besides music.除了音乐，我们还有很多共同点。
There is no one but me.这里除了我没有别人。
2. Whose birthday is it
While-writing
02 写中
Writing time
Show Time
Items Self-evaluation自评 Peer-evaluation同评 Teacher-evaluation师评
Language
Pronunciation
Performance
Excellent Great Good
2. Whose birthday is it
03 写后
After writinging
一. 翻译。
Exercises
1.与……相连____________________ 2. 实际上___________
3. 出于这个原因_________________ 4. 为了；以便______________
5. 参与某事___________________
6. 是……的家乡_____________________
7. 达到；符合____________
live up to
be connected with / to
in fact
for this reason
in order to
play a part / role in
be home to sb. / sth
二.用括号中所给词的适当形式填空。
Bees are one of __________________(interesting) animals in the world.
How are plants and animals ______________(connect) with us
I felt ______________(disappoint) when my favourite flowers died.
They teach you how to plan your time well or how to find ___________(happy).
We should understand the ___________(important) of labor.
the most interesting
connected
disappointed
happiness
importance
Must-do: make a poster about
the blue whales to help others
know them better.
Choose-to-do: try to search more
information about them and make
a video to introduce them
2. Whose birthday is it
Thanks
for watching!

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