(共39张PPT)
Unit 3
Animals Are Our Friends
Where can you usually see a tiger?
How many types of tigers are there in the earth?
Free Talk
the Bengal tiger
the Siberian tiger
[sai'bi?ri?n]
[be?'ɡ?:l]
There are currently six types of tigers.
['k?r?ntl?]目前
西伯利亚虎
孟加拉虎
the Sumatran tiger
the Malayan tiger
[su'mɑ:tr?n]
[m?'lei?n]
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?
Watch a video
The tigers are in danger!
They need our help!
Lesson 17
Save the Tigers
1.Knowledge Aim
Master the new words and the key points.
Words: century, fur, symbol, courage, brave, chain, balance, reason, disappear, kill,cut,decrease
Phrases: at the beginning of,drop to,food chain,keep...in balance,in danger,cut down,as well
2. Ability Aim
Talk about how to save animals.
3. Emotion Aim
Love animals and protect them.
Learning Aims
century [?sent??r?]
fur [f??]
symbol ['s?mb(?)l]
courage ['k?r?d?]
brave [bre?v]
chain [t?e?n]
balance ['b?l(?)ns]
reason ['ri?z(?)n]
disappear [d?s?'p??]
kill [k?l]
cut (cut/ cut) [k?t]
decrease [d?'kri?s]
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
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
New Words
fur
Un.（兽类的）毛
They haven't got much fur yet.
The dove is the symbol of peace.
symbol
n. 标志，象征
......的象征
chain
n. 链子；链条
The shark is at the top of the sea food chain.
食物链
balance
n. 平衡，平稳
If the stones are not in balance, they will fall.
保持平衡
The man is cutting a tree.
Be careful. Don’t cut your
fingers.
We can cut the cloth with
scissors.
砍
切
剪
cut (cut/ cut)
The doctors and nurses showed great courage(n.勇气) in fighting the virus.
They are brave(adj. 勇敢的).
Some people killed tigers for money.
In recent years,the number of tigers has decreased.
Maybe some types of tigers will disappear on the earth.
kill
v.杀死
decrease
v.减少
disappear
v. 消失
1.The number of the tigers has a few thousand.
2.The tiger is at the top of the_____________.
3.Tigers are important to the .
4.People have______________ a lot of trees.
5.In recent years,tigers have been in danger
of .
environment
disappearing
Listening
dropped to
food chain
cut down
Listen to the text and fill in the blanks.
Read the lesson and match each paragraph with its main idea.
Paragraph 1
Paragraph 2
Paragraph 3
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.
Save the Tigers
Fast reading
5.As forests disappear, tigers lose their homes.（Translate）
Careful reading
Read the lesson and finish the following tasks.
2.How many tigers were there at the beginning of the 20th century?
Around 100 000 tigers.
4.Why do people hunt and kill tigers?
They hunt and kill tigers for money.
3.Why are tigers important to the environment?
Because the tiger is at the top of the food chain.It helps keep the number of other wild animals in balance.
1.Tigers are symble of _________________________.
随着森林的消失，老虎失去了它们的家园。
strength and courage
1. At the beginning of the 20th century, the number of tigers in the wild was around 100 000. 在20世纪初，野生老虎的数量在100 000左右。
at the beginning of … 在……之初。反义词组： at the end of …在……的结尾/末端。
Start your plan __________________ the term.
We shall have an exam ___________________ this month.
Language points
at the beginning of
at the end of
2. century n.世纪，百年 复数为centuries
in the +序数词+century ,在第几世纪，要用序数词，并在序数词前加定冠词the.
in the 20th century / the twentieth century 在20世纪
21世纪____________________________________
Language points
the 21st century/the twenty-first century
the number of意为_____________,跟复数名词连用，谓语动词用_____数。
a number of意为_______________，修饰可数名词复数，谓语动词用____数；number前可用large，small等修饰。
翻译：The number of students in our class is over 50.
______________________________________
A number of students _______ planting trees on the hill.
…的数量
许多
单
复
我们班学生的数量是50多人。
许多学生在小山上种树。
Language points
3.the number of 与 a number of 的区别:
are
4. But today that number has dropped to a few thousand.
drop to 下降到；跌至 drop— dropped—dropped
e.g. The temperature will drop to five degrees below zero.
气温将降至零下五度。
A few thousand 表示几千
当hundred,thousand前面是基数词one,two,…a few,many时，
其后不加s。
There are ___________students in our school.
A.three thousands B. thousands of
C. thousand of D. three thousands of
Language points
B
5. It helps keep the number of other wild animals in balance.
in balance 保持平衡
keep ... in balance 保持...的平衡
结构：keep+sb./sth.（宾语）+n./adj./doing/介词短语（宾补）
我们应该使自然保持平衡。We should ______ the nature _________.
out of balance 失去平衡
keep/lose one’s balance 保持/失去平衡
Language points
keep
in balance
6. For this reason,tigers are important to the environment.
for this reason 因为(由于)这个原因
reason n.原因，理由，动机，常接介词for引导的短语
for some reason由于某个原因
the reason for(doing)sth（做）某事的原因
There is no reason to do sth.没有理由做某事。
E.g. (菏泽中考）His wife asked him the_____________（原因）for his return.(reason)
Language points
reason
7. In recent years, tigers have been in danger of disappearing.
recent adj.最近的 recently adv.不久前，最近，
常用于现在完成时 。 in recent years近几年来 =recently E.g. I haven’t seen them recently.
in danger处于危险状态 in danger of...处于……的危险状态
out of danger脱离危险
e.g. He was in danger of losing his life.? 他有失去生命的危险。
The wild animals are ___________.We should
help them.
Language points
in danger
表示“也”的短语和单词
Language points
也 位置 标点 例句
too 肯定句末 前用逗号分开 He likes dogs, too.
also 肯定句中,行前be后 前后无标点 She can speak English and she can also speak Germany.
either 否定句末 前有无逗号均可 Yesterday I didn’t watch TV and I didn’t see the film, either.
as well 常位于肯定句末 前无逗号 He can sing as well.
8.As forest disappear, tigers lose their homes.
随着森林的消失，老虎失去了它们的家园。
as在句中作连词，引导状语从句，意为______________
When, while, as的比较：
We were going to the zoo when we met her.
While I was having diner, my brother was packing.
He smiled as he passed
随着，当…的时候
Language points
Exercise：
1.________time go by,he feels more regetful.
A.So B.As
C.Because D.Until
B
at the beginning of…
the number of…
drop to
food chain
keep...in balance
for this reason
in danger
cut down
as well
a group of
in the wild
be important to
Important phrases
在……之初
……的数目
下降到；跌至
食物链
保持平衡
因为这个原因
处于危险状态
把……砍到，减少
还;也（除......外)
一群，一组......
在野外
对......重要
Exercise
1.He is b_______enough to face dangers in the life.
2.Some animals may _________(appear)if we don't stop hunting them.
3.I wish everyone good luck at the___________ (begin) of the year.
4.He is a teacher and a writer_______.
A. also B. either C. too D. as well
5.This picture is quite old. We can still see it was drawn in______ century.
A. sixteen B. the sixteen C. sixteenth D. the sixteenth
6.There____a number of women teachers in our school and the number of them _____about 150.
A. are, is B. is, are C. is, is D. are, are
disappear
rave
beginning
D
D
A
The animals are in danger.
panda
golden monkey
pander
milu deer
elephant
How To Protect Endangered Animals
Watch a video
What animals are mentioned in the video?
How can we do to protect them?
No sale,no killing!
Suggestions
What should we do to save the animals in danger?
1 . Stop the people from killing and hunting the wild animals.
2. Plant more trees and stop cutting down the trees.
3. Protect the forest
4. Return the animals' homes
5. Set up nature reserves
Discussion
Create a poster to call on all the people to protect animals.
You may write about:
Writing time
What animals do you want to help?
Why are they in danger?
How do you help them?
How can people join you?
null
1
2
3
poster
No sale,no killing!
Saving animal is saving ourselves!
Let’s become the protectors of animals.
1. Recite the key points of the lesson.
2. Finish the Exercises.
3. Make a poster to call on people to protect animals.
Homework
