(共45张PPT)
Unit3 Animals Are Our Friends
Lesson 17
Save the Tigers
lead-in
1. They usually have orange fur（n. 皮毛） and dark stripes.
2. They live in the forest.
3. They are brave（adj. 勇敢的）.
4. They are symbols（n. 象征）of strength and courage（n. 勇气）.
5. They are the kings of the forest.
Can you guess
What are they
Pre-reading
Make a guess.
What does this lesson talk about
Guess some questions .
Who
Why
When
What
How
1.century n.世纪
2.fur n.（兽类的）毛
3.symbol n.标志；象征
4.courage n.勇气；胆量
5.brave adj.勇敢的；无畏的
6.chain n.链子；链条
7.balance n.平衡；平稳
8.reason n.原因；动机；理由
9.disappear v.消失；失踪
10.kill v.杀死
11.cut v.(cut/cut)砍；切；剪；割
12.decrease v.使……变小；减少
Can you read
反：appear v.出现
反：increase v.增加
new words
fast-reading
Read the lesson and match each paragraph with its main idea .
A．Tigers are in danger of going extinct .
B．“Save the Tigers” is a volunteer group that hopes
to stop the tigers from disappearing .
C．Tigers are important to the environment .
B
C
A
How much do you know about tigers
The tiger is at the top of the food chain（食物链）.
It helps the number of other wild animals in balance（保持平衡).
At the beginning of
(在...之初）the 20th century （世纪）
the number of tigers
But now the number of tigers is decreasing（减少）and it drops
to（下降到） a few thousand.
What are people doing
People kill（杀死） tigers and cut down（把...砍倒) trees.
For this reason（原因），tigers are in danger(处于危险状态） of disappearing（消失）.
Do you think tigers need our help？Why or why not
Read Para. 1 and answer the questions. ( group 1)
1. How many tigers were there at the beginning of the 20th century
2. How many tigers are there in the wild today
Around 100 000.
The number of tigers has dropped to a few thousand.
课文呈现
“Save the tigers ” is a group of volunteers. ① These volunteers hope to save the tigers of the world . ② At the beginning of the 20th century，the number of tigers in the wild was around 100 000. ③ But today that number has dropped to a few thousand . ④
Save the Tigers group works to protect the tigers .
考点精讲
① “Save the tigers” is a group of volunteers.
save v. 拯救，挽救 save one’s life 救某人的命
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. save...from...
那个警察把他从那场大火中救了出来。 从……救出……
考点1
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。
中考在线1：The doctors and nurses didn’t give up ________ (save) the young man.
saving
【点拨】句意为“医生和护士没有放弃救那个年轻人”。give up doing sth.“放弃做某事”，故填saving。
考点精讲
② These volunteers hope to save the tigers of the world.
hope v. 希望
hope 在此作动词，用于表示有可能实现的愿望。hope 常见的用法有：
（1）hope to do sth. 希望做某事
e.g. I hope to watch the football match again.
我希望再看一次那场足球赛。
（2）hope + that 从句 希望……
e.g. She hopes that I can pass the exam.
她希望我能通过考试。
考点2
拓展：wish 也可表示“希望”，后可接动词不定式或从句，也可以用于wish sb. to do sth. 结构，hope 则没有此用法。
考点精讲
中考在线2：A group of students from Hongqi School hope _____ our school art festival next week. [营口]
A. join in B. to join in
C. joining in D. joined in
【点拨】hope to do sth. 意为“希望做某事”，是固定表达，因此这里用动词不定式。
B
考点精讲
③At the beginning of the 20th century, the number of tigers in the wild was around 100 000.
at the beginning of... 在……之初
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。
考点3
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”。
考点精讲
[高频] the number of ……的数目/ 数量
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。
考点4
后接可数名词的复数形式。
考点精讲
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
考点精讲
中考在线3：_____ famous Chinese songs, such as The Love Song of Kangding and Jasmine Flowers, were sung during the concert.
[连云港]
A. A number of B. The number of
C. A great deal D. A great deal of
【点拨】句意为“音乐会上演唱了多首中国著名歌曲，例如《康定情歌》和《茉莉花》”。C 项不修饰名词；D 项修饰不可数名词；the number of 表示“……的数目、数量”，谓语动词用单数形式；a number of 意为“许多”，修饰复数名词，符合句意。
A
考点精讲
④ But today that number has dropped to a few thousand.
drop to 下降到；跌到
e.g. The temperature will drop to three below zero.
气温会降到零下三度。
考点5
Read Para. 2 and answer the questions. (group 2)
1. What does the tiger look like？
2. Why are tigers important
They usually have orange fur and dark stripes.
The tiger is at the top of the food chain. It helps keep the number of other wild animals in balance.
课文呈现
Tigers live in the forests of Asia . They usually have orange fur and dark stripes . Tigers are symbols of strength and courage. ⑤ In many stories，they are brave . ⑥ The tiger is at the top of the food chain. It helps keep the number of other wild animals in balance. ⑦ For this reason，tigers are important to the environment. ⑧
考点精讲
⑤ Tigers are symbols of strength and courage.
symbol / s mbl/ n. 标志；象征
e.g. Doves are symbols of peace.
鸽子是和平的象征。
考点6
symbol常与of搭配，表示“……的标志/象征”。
中考在线4：—Why do Chinese people like red [黄冈]
—Because the color red is the ______ of good luck in China.
A. reason B. hope C. dream D. symbol
【点拨】句意为“——为什么中国人喜欢红色？——因为红色在中国是好运的象征”。reason 表示“原因”；hope 表示“希望”；dream 表示“梦想”；symbol 表示“象征”。
D
考点精讲
中考在线4：—Why do Chinese people like red [黄冈]
—Because the color red is the ______ of good luck in China.
A. reason B. hope C. dream D. symbol
【点拨】句意为“——为什么中国人喜欢红色？——因为红色在中国是好运的象征”。reason 表示“原因”；hope 表示“希望”；dream 表示“梦想”；symbol 表示“象征”。
D
考点精讲
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。
e.g. Do you have the courage to go bungee jumping
你有胆量玩蹦极吗
考点7
常用短语：
take courage to do sth. 鼓起勇气做某事
考点精讲
⑥ In many stories, they are brave.
brave /bre v/ adj. 勇敢的；无畏的
e.g. Be a brave boy, Tommy. 汤米，做一个勇敢的男孩。
考点8
中考在线5：Our teachers often encourage us to face the difficulties ___________（勇敢地） and try to overcome them. [泰安]
【点拨】此处是副词修饰动词face，故用bravely。
bravely
考点精讲
⑦ It helps keep the number of other wild animals in balance.
keep ... in balance 使……处于平衡状态；保持……的平衡
e.g. We should keep the nature in balance.
我们应该使自然保持平衡。
考点9
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。
考点精讲
⑧ For this reason, tigers are important to the environment.
reason /'ri zn/ n. 原因；动机；理由
e.g. What is the reason for your long silence
你长时间沉默的原因是什么？
考点10
reason常和for连用，意为“……的原因”，但和because 不在一个句子中出现。
For reasons of safety, the door is always
kept locked.
为了安全，门总是锁着。
常构成的短语：
for reasons of 为了，出于
within reason 在合理范围内，不过分
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。
考点精讲
中考在线6：—Look! The boss is angry with Alex.
—Well, he came late again. But there’s no _____ to shout at him.
A. problem B. lesson C. excuse D. reason
【点拨】本题采用词语辨析法。problem 问题；lesson 课；excuse 借口；reason 理由。另外，There is no reason to do sth. 没有理由做某事。
D
Read Para. 3 and answer the questions. (group 3)
Why are tigers are disappearing (reasons)
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.
课文呈现
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. ⑨ As forests disappear，tigers lose their homes . The number of tigers in the wild is quickly decreasing and we must do something about it.
考点精讲
⑨ People have cut down a lot of trees as well.
[高频] cut down 砍倒；减少
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。
考点11
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。
People cut down trees to make paper. 人们砍伐树木来造纸。
A storm cut off the power. 一场暴风雨切断了电源。
Please help me cut up the meat. 请帮我把肉切碎。
与cut 有关的短语：
cut down砍倒；削减 cut off 切断；中断
cut up 切碎
考点精讲
中考在线7：I think young phubbers（低头族）are supposed to ______, the time they spend ______ their smart phones. [安顺]
A. cut off; in B. cut down; on
C. cut up; on D. cut in; in
【点拨】本题采用短语辨析法。cut off 切断；cut up 切碎；cut in 插入；cut down 削减。spend… on sth.“在某物上花费……”。
B
考点精讲
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。
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。
考点12
as well前不用逗号与句子的其他部分隔开
考点精讲
② too 用于肯定句，常位于句末。
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。
too前常有逗号
考点精讲
中考在线8：Look! Julia as well as her sisters ______ a kite on the playground. [大庆]
A. fly B. flies C. is flying D. are flying
C
tigers
Discussion: What should we do to protect tigers
You can use:
We should(shouldn’t)\must(mustn’t)\need\can(can’t)...
It's our duty(责任) to...
Say no to ...
take actions(采取措施) to...
Words （law法律， nature reserves自然保护区， government 政府...)
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 stop them from being killed.
5. The governments（政府） should educate people to love nature and protect it.
Measures to protect the wild animals:
课文呈现
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.
课文呈现
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
课文呈现
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.
Optional: (选做）
Task A: Write a report about protecting animals.
Tips: What animals do you want to help Why
What is happening to them
How can we protect them
Task B: Make a poster about how to protect animals.
Task C: Copy the new words and phrases in this lesson.
课后作业
goodbye
