Unit 3 Animals Are Our Friends Lesson 17（18页）课件 -2024-2025学年英语冀教版八年级下册

(共18张PPT)
Unit 3 Animals are our friends
Lesson 17 Save the tigers
1.学习目标
3.重点探究
2.自主学习
学习导航
5.当堂检测
6.课堂总结
4.拓展提升
新课导入
Tigers are dangerous, and are you afraid of them Why
In fact, some tigers are in danger, what should we do to protect them
学习目标
1.能熟悉并能正确运用本课时的重点单词和短语
2.能了解老虎的现状并保护老虎
自主学习
balance
reason
disappear
kill
cut
decrease
n. 平衡，平稳
n. 原因，动机，理由
v. 消失，失踪
v. 杀死
v. 砍，切，剪，割
v. 使……变小；减少
在……之初
下降到；跌至
食物链
保持平衡
处于危险状态
处于……危险中
把……砍到，减少
（出某事某人外）还，也
at the beginning of…
drop to
food chain
in balance
in danger
in danger of
cut down
as well
重点探究
“Save the tigers”is a group of volunteers. These volunteers hope to save the tigers of the world. At the beginning of the 20th century, the number of tigers in the wild was around 100 000. But today that number has dropped to a few thousand.
Tigers live in the forests of Asia. They usually have orange fur and dark stripes. Tigers are symbols of strength and courage. In many stories, they are brave. The tiger is at the top of the food chain.
THINK ABOUT IT
Where can you usually see a tiger
Do you think tigers need our help Why or why not
It helps keep the number of other wild animals in balance. For this reason, tigers are important to the environment.
In recent years, tigers have been in danger of disappearing. Some people hunt and kill tigers for money. People have cut down a lot of trees as well. As forests disappear, tigers lose their homes. The number of tigers in the wild is quickly decreasing and we must do something about it.
Learning Tip
There are currently six types of tigers: the Bengal tiger, the Siberian tiger, the Sumatran tiger, the Malayan tiger, the Indochinese tiger and the South China tiger.
B
C
A
1. Read the lesson and match each paragraph with its main idea.
Save the tigers”is a group of volunteers.
These volunteers hope to save the tigers of the world.
The tiger is at the top of the food chain.
It helps keep the number of other wild
animals in balance.
In recent years, tigers have been in danger
of disappearing. Tigers lose their homes.
The number of tigers in the wild is quickly decreasing
2. Read the lesson and find some sentences to support the main idea of each paragraph.
3. Work in groups and discuss some ways to protect animals.
Write down your ideas.
How to protect animals？
First, I think we must stop killing the rare birds and animals, especially the young ones.
Second, we have to protect the environment, to make the sky
blue, to make the grass green, to give the animals a comfortable
space to live. It's not only for the animals but also ourselves.
At last, we should tell more and more people why and how to protect the animals, make everyone do this.
拓展提升
1. At the beginning of the 20th century, the number of tigers
in the wild was around 100 000.
the number of是固定短语，意为“……的数量”，后接可数名
词复数，谓语动词要用单数。如：The number of students in our
school has grown from 1,000 to more than 1,500.
【注意】
a number of为量词短语，意为“许多；大量”，相当于
a lot of或lots of，中心词是该短语所修饰的可数名词复数，
所以作主语时，谓语动词用复数形式。 如：
A number of students like playing computer games.
2. It helps keep the number of other wild animals in balance.
balance 在句中用作名词，意为“平衡；均衡”，
常用短语be out of balance，意为“不平衡”；
keep in balance意为“保持平衡”；balance还作动词，
表示“（使）平衡；（使）均衡”。如：
You must learn to keep your balance in skating.
3. In recent years, tigers have been in danger of disappearing.
danger意为“危险”，通常是不可数名词，
表示做某事的危险或发生某情况的危险等，
常用短语 be in danger (of)，意为“在危险中”。如：
Is there any danger of fire
当堂检测
1. ________ (长颈鹿) are the tallest animals on land.
2. What beautiful __________ (婚礼) clothes they are!
3. Uncle Yan visited many ______ (亚洲的) countries last year.
4. He is interested in _______ (历史).
history
一. 根据句意及所给汉语提示，完成下列句子。
Giraffes
wedding
Asian
1. One of the world's biggest zoos ____ (be) in Egypt.
2. My pet dog _____ (die) two weeks ago.
3. _____ (bar) keep the animals inside.
4. They got ________ (marry) on August, 8th 2008.
5. The Siberian tiger is the ______ (big) cat (猫科动物)
in the world.
biggest
is
died
Bars
married
二.用括号内单词的正确形式填空。
课堂总结
重点短语：
in danger of
the number of ...
a number of / a lot of
keep in balance
out of balance
重点词汇：
balance, reason
disappear, kill
cut, decrease
Unit 3
Lesson 17