(共43张PPT)
Unit 3 Animals Are Our Friends
Lesson 17: Save the Tigers
学习目标
Key words & phrases:
century; courage; brave; reason; kill; cut; at the beginning of; drop to; food chain; in balance; in danger; cut down; as well.
Key sentences:
1. Tigers are symbol of strength and courage.
2. It helps keep the number of other wild animals in balance.
3. For this reason, tigers are important to the environment.
To learn some ways to protect animals.
Words & Expressions
Let's read
century
fur
symbol
courage
brave
chain
n. 世纪
n. (兽类的)毛
n. 标志；象征
n. 勇气；胆量
adj. 勇敢的；无畏的
n. 链子；链条
Words & Expressions
Let's read
balance
reason
disappear
kill
cut (cut/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
Words & Expressions
Let's read
at the beginning of
drop to
food chain
in balance
cut down
as well
在……之初
下降到；跌至
食物链
保持平衡
把……砍倒；减少
（除某事或某人外）还；也
Have you ever seen a tiger？
Where did you see it
Do you know how many types of tigers exist today
Free talk
the Bengal [be 'ɡ :l] tiger
There are currently six types of tigers:
孟加拉虎
the Siberian [sai'bi ri n] tiger
西伯利亚虎
the Sumatran[su'mɑ:tr n] tiger
the Malayan[m 'lei n] tiger
苏门答腊虎
马来亚虎
the Indochinese tiger
the South China tiger
印度支那虎
华南虎
Do you think tigers need our help Why or why not
No trading, no killing！
remember
Love animals.
Love the environment.
Love the world.
Presentation
“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. It helps keep the number of other wild animals in balance. For this reason，tigers are important to the environment.
Save the Tigers group works to protect the tigers .
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 .
Read Para. 1 and answer the questions.
1. How many tigers were there at the beginning of the 20th century
Around 100 000.
2. How many tigers are there in the wild today
The number has dropped to a few thousand.
Read Para.2 and fill the mind-map.
.
.
.
.
.
Tigers
have orange fur and dark stripes
symbols of strength and courage
brave
at the top of the food chain
features（特征）
Appearance
(外貌）
1. Why do people hunt and kill tigers
They are for money.
2. What are reasons tigers are disappearing
①Some people hunt and kill them for money.
②People have cut down a lot of trees as well.
As forests disappear, tigers lose the homes.
Read Para.3 and answer these questions.
Read the passage and fill in the blanks.
In recent years, tigers have been in of disappearing. The number of the wild tigers has (drop) to a few thousand. As we know, tigers are important to the environment, because the tiger is at the t of the food (食物链) and it helps keep the number of other wild animals in . Let's work together to save the tigers.
danger
dropped
op
chain
balance
Let’s Do It!
1. Read the lesson and match each paragraph with its main idea.
B
C
A
2. Read the lesson again and find some sentences to support the main idea of each paragraph .
Save the Tigers
Paragraph 1
Paragraph 2
“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.
For this reason, tigers are important to the environment.
In recent years，tigers have been in danger of disappearing.
As forests disappear，tigers lost their homes.
The number of tigers in the wild is quickly decreasing and we must do something about it.
Paragraph 3
3. Work in groups and discuss some ways we can protect animals . Write down your ideas.
I don't think we should buy clothes made of animal fur.
People shouldn't hunt any animals for their fur and bones.
People shouldn't cut down trees.
1. decrease hunting, treat them as our friends
2. protect our environment
3. set up nature reserves(自然保护区）
4. make laws to prevent them from being caught and killed
5. the governments should educate people to love
nature and protect it
Measures to protect the wild animals
Language points
1. “Save the tigers” is a group of volunteers. (教材P42)
save v. 拯救，挽救
常见短语：
save one’s life 救某人的命
save...from... 从……救出……
e.g. The doctor did what he could to save the boy’s life.
为了救那个男孩的命，那个医生做了他能做的一切。
The policeman saved him from the big fire.
那个警察把他从那场大火中救了出来。
拓展： save 作动词，还可表示“储蓄；节省；节约”。
e.g. To save money, he only ate some bread for dinner.
为了省钱，他晚饭只吃了一些面包。
2. At the beginning of the 20th century, the number of tigers in the wild was around 100 000. (教材P42)
at the beginning of... 在……之初
其后常接表示时间、事件或其他意义的名词，其反义词组at the end of...意为“在……的结尾/末端”。
e.g. At the beginning of the class, the teacher gave out some books to us. 开始上课时，老师给我们发了一些书。
We shall have an exam at the end of this month.
本月底我们将有一场考试。
the number of ……的数目/ 数量 后接可数名词的复数形式,做主语时，谓语动词用单数。
e.g. The number of the apples is 40.
苹果的数量是四十。
The number of wild animals has become smaller and smaller in recent years.
最近几年，野生动物的数量已经变得越来越少。
① the number of ……的数目/数量；后接可数名词的复数形式，作主语时，谓语动词用单数形式。 The number of the students in our school is about 3 500.
我们学校的学生人数大约是三千五百人。
② a number of 许多，大量；修饰可数名词的复数形式，作主语时，谓语动词用复数形式。 A number of students are playing in the playground.
许多学生正在操场上玩。
辨析：the number of 与a number of
3. Tigers are symbols of strength and courage. (教材P42)
symbol / s mbl/ n. 标志；象征 常与of搭配，表示“……的标志/象征”。
e.g. Doves are symbols of peace.
鸽子是和平的象征。
courage / k r d / n. 勇气；胆量
它通常用作不可数名词。当它与动词have、lack 等连用时，其前常加定冠词the; 而与take、lose 连用时一般不加定冠词。
常用短语：
take courage to do sth. 鼓起勇气做某事
e.g. Do you have the courage to go bungee jumping
你有胆量玩蹦极吗
4. It helps keep the number of other wild animals in balance.
(教材P42)
keep ... in balance 使……处于平衡状态；保持……的平衡
该短语的结构为：keep+宾语+宾语补足语(介词短语)，其中宾补还可以是名词、形容词或动名词等。
e.g. We should keep the nature in balance.
我们应该使自然保持平衡。
5. For this reason, tigers are important to the environment. (教材P42)
reason /'ri zn/ n. 原因；动机；理由
拓展：reasonable adj. 合乎情理的；公道的
reason常和for连用，意为“……的原因”，但和because 不在一个句子中出现。
e.g. What is the reason for your long silence
你长时间沉默的原因是什么？
常构成的短语：
for reasons of 为了，出于
within reason 在合理范围内，不过分
For reasons of safety, the door is always kept locked.
为了安全，门总是锁着。
拓展：reasonable adj. 合乎情理的；公道的
e.g. He made us a reasonable offer for the car.
他给我们出的车价公平合理。
6. People have cut down a lot of trees as well. (教材P42)
cut down 砍倒；减少
动副短语，代词作宾语，宾语放中间；
名词作宾语放中间或后边。
e.g. The apple tree was dead, so he cut it down.
那棵苹果树死了，所以他把它砍倒了。
与cut 有关的短语：
cut down砍倒；削减
cut off 切断；中断
cut up 切碎
as well ( 除某事或某人外) 还；也
e.g. Are they coming as well 他们也来吗？
辨析：as well, too, either 与also
① as well 用于肯定句，总是用在句末。as well前不用逗号与句子的其他部分隔开
e.g. I am going to London and my sister is going as well.
我要去伦敦，我妹妹也要去。
② too 用于肯定句，常位于句末。too前常有逗号
e.g. I’m good at cooking, too. 我也擅长烹饪。
③ either 用于否定句，位于句末。
e.g. If you don’t go there, he won’t go there either.
如果你不去那儿，他也不会去那儿。
④ also 用于肯定句，一般位于be 动词、情态动词或助动词之后，行为动词之前。
e.g. Mrs. Green can also sing the song in Chinese.
格林夫人也能用中文唱这首歌。
Exercises
一、单项选择
1．I like English. Tom likes it________．
A．either B．also C．as well as D．as well
2．Pandas are much loved around the world. Unluckily, there aren't many pandas left and they're ________ now. So we must save them.
A. in order B. in danger C. in need D. in surprise
D
B
二、根据句意及首字母填词
1. His parents were born in the 80's of the 20th c________.
2. Tigers are symbols of strength and c________．
3. We k________time by chatting with our friends on the Internet during the night.
4. He didn't tell us the r________ for being late.
5. The young woman is very b________. She is not afraid of anything.
entury
ourage
ill
eason
rave
Homework
Preview the passage Lesson 18.
Do the exercises in students’ book.
Thank you!
