資源簡介

(共45張PPT)
Unit 13
We're trying to save the earth!
Section A
1a-3c
noise pollution
_____________
_____________
____________
___________
loud music
mobile phones
building houses
planes
air pollution
___________
___________
___________
___________
factories
smoking
cars
building houses
water pollution
____________
____________
____________
____________
ships
rubbish
littering
factories
machines,
crowds,
vehicles
burning power
plants,
nuclear waste
disposal
sewage,
industrial waste,
pesticides
1b
Listen and check (√) the sentences you hear
1. We could go fishing in the river.
2. The river was really dirty.
3. The river has always been the nicest
river in this town.
4. We should ask the teachers for help.
√
√
1b
Listen and complete the sentences.
What was the problem
The river was _____________. Even the
bottom of the river was full of
_________. There were no more ______
for fishermen to catch.
really dirty
rubbish
fish
底部
漁民
What caused the problem
People are throwing _______ into the
river. Factories are putting ______ into
the river.
How should the problem be solved
We should write to the ____________ and
ask them to ___________ the factories.
Everyone should help to __________ the
river.
litter
close down
clean up
waste
government
垃圾，廢棄物
1c
Role-play
The river was dirty…
But it used to be so clean! ...
2a
Listen to the interview. Circle the kinds of pollution that Jason and Susan talk about.
land pollution B. air pollution
C. noise pollution D. water pollution
2b
Listen again and complete the sentences.
1. The air is badly polluted because there are ___________ on the road these days.
2. Factories that burn coal also ________ the air with a lot of black smoke.
more cars
pollute
3. There is also too much rubbish and waste. People _________________ things every day.
4. People are also littering in ______________ like parks. This is turning beautiful places into
ugly ones.
丑陋的
The air has become really polluted…
Yes, I used to be able to see stars in the sky.
The problem is that…
2d
Role-play the conversation.
減少，砍倒
advantage n.優點；有利條件
（反）disadvantage 缺點
2d
Read 2d and complete the chart.
Problems Solving problems
air pollution
waste pollution
Wooden chopsticks or plastic forks
rubbish
take the bus, subway or ride a bike instead of driving.
bring a bag to go shopping.
use chopsticks or forks at home.
throw rubbish in the bins.
木頭的
外賣食物
make a difference to對...有作用或影響
n.塑料，adj.塑料的
Jason and Susan, what are your ideas for solving these problems
Role-play
We only have one earth!
Let's play a part in loving and saving it!
Exercises
1.He ___ go out with his parents, but now he ____
staying at home alone.
A. used to; is used to B. is used to; used to
C. used to; used to D. is used to; is used to
2. The interesting book ___ me 10 yuan.
A. took B. paid
C. spend D. cost
What happens to the shark
Without fins, can he swim
Can he die ？
A newspaper
Guess:
where is this article probably from
A novel
A book
how to save the sharks
sharks are endangered now
talk about shark fin soups
para.1
para.2
para3.
Scanning 尋讀
Para1.
Talk about shark fin soup.
Read and judge the sentences.
( )①The expensive shark fin soup is popular around the world.
( ) ②You’re killing a whole shark when you enjoy a bowl of shark fin soup.
in southern China.
1800.00 RMB each bowl
F
T
Para. 2 Sharks are endangered now.
why
What happens to the shark
Next , people _______________ their fins .
cut off
Then , people the fins the shark fin soup .
cook
into
If a shark doesn’t have a fin, what will happen (sentence 2.3)
A shark can no longer swim and slowly dies.
不再
fins
swim
ruel
die
Fast reading
Para2. (2.3)
Find out the other adjective to describe the process.
This is not only cruel, but also harmful to the environment.
harmful
A: 殘忍的 B:有害的
Scanning 尋讀
Para2.
1. Why is it harmful to the environment (4.5)
Sharks are at the top of the food chain in the ocean’s ecosystem. If their numbers drop too low, it will bring
danger to all ocean life.
2.Sharks can never be endangered because
they are the strongest at the food chain.(6.7.8)
)
True or False:
at the top of the food chain
in the ocean’s ecosystem
浮游生物
sharks
at the top of the food chain
in the ocean’s ecosystem
因為我們生存所需的氧氣的70%是海洋中的浮游生物提供的，鯊魚一旦滅絕，沒有了天敵控制的其它海洋生物就會大量吞噬海洋浮游生物，造成地球的缺氧。海洋是地球上最重要的生態系統，起到調節氣候和為其它生物提供食物的作用，因此拯救鯊魚其實就是在拯救人類自己。
Saving the sharks is saving ourselves ! Protecting the sharks is protecting ourselves !
Scanning 尋讀
Para3.
How to save the sharks .
1.What are the names of the two environmental protection groups
2. What have people done against(反對）finning
1.teach the public about finning.
獵鰭、割鰭行為
2.ask governments to develop laws to stop the sale of shark fins.
A:培養 B:壯大 C：完善
Scanning 尋讀
Para3.
=
or
3. Is shark fin soup good for health
No scientific studies have shown that shark fins are good for health.
A: 科學的 B:理論的
So why eat them
中考鏈接
a number of the number of
相同點： 后都加 名詞復數
不同點：a number of +名復， 意為許多；做主語是復數。
the number of +名復，意為......的數量，做主語是單數。
A number of _________(student ) ________(have ) an English class now . The number of _______(it/they) ________(be ) about 45.
中考鏈接
no longer / not....any longer意為不再
no longer通常位于實義動詞之前，be動詞、助動詞或情態動詞之后 。not ... any longer中的any longer總是放在句末。no longer與not ... any longer可以互換
She ______ _______likes dancing.（同義句）
She _______like dancing _____ ______.
她不再喜歡跳舞了。
中考鏈接
be harmful to 對……有害
be bad for 對……有害
e.g. 吸煙有害健康。
電腦游戲玩太多對學生有害。(翻譯)
Smoking the health.
Playing computer games much _____ students.
定義：表示說話時(瞬間)正在進行的動作, 也表示目前或現階段正在進行的動作。
結構: be (am/is/are) + v.-ing
標志詞：Look, Listen, now, right now…
e.g. Look! The boy is crying.
2.used to do
used to do sth. 表示過去常常做某事, 而現在往往不做了, 后接動詞原形。
e.g. I used to get up at six o’clock.
be used to doing sth. 表示習慣于做某事
Joe is used to drinking a cup of coffee every morning.
1. 現在進行時: Present Progressive
3.被動語態：Passive voice
定義：表示主語是動作的承受者，即行為動作的對象的一種語態。
結構：be + 過去分詞
e.g. Our classroom is cleaned every day.
4.現在完成時: Present Perfect
定義：表示動作已經完成, 但對現在造成影響; 或者表示從過去某一時間開始一直延續到現在并還可能持續下去的動作。
結構: has/have + 過去分詞
標志詞：already, yet, ever, never, since, for…
e.g. I haven’t finished my homework yet.
情態動詞本身有一定的詞義, 表示說話人的情緒、態度或語氣, 但不能單獨作謂語, 只能與其他動詞構成謂語。常見的有: can (could), may (might), must, need, shall (should), will (would)等。
2. 情態動詞無人稱和數的變化, 后接動詞原形。否定式是在情態動詞后面加not。個別情態動詞有過去式形式, 可用來表達更加客氣、委婉的語氣。
e.g. Ken can climb up the tress like a koala.
You mustn’t play with fire. It is dangerous.
情態動詞
4a
Fill in the blanks with the correct forms of the verbs in brackets.
Joe: _____ you ever ______ (take) part in
an environmental project
Eric: Yes, I have. I ______ (help) with a
Clean-Up Day last year. It was
__________ (consider) the biggest
clean-up project this city ____ ever
____ (have).
Have
taken
helped
considered
had
had
參加
Joe: How many people ____ (take) part
Eric: I _____ (think) more than 1,000
people ______ (come) to help out.
Joe: That’s fantastic! I guess everyone in
this city is ______ (try) to improve
the environment.
Eric: Yes, we can’t afford to ____ (wait)
any longer to take action!
took
think
came
trying
wait
v. 承擔得起(后果); 買得起 afford to do sth.
We can’t afford to buy another house.
4b
Fill in the blanks with the appropriate
modal verbs from the box.
People __________ think that big things
______ be done to save the earth. Many
forget that saving the earth begins with
small things. For example, you ____ save
may/might
must
can
can would could
have to should must
may/ might
small things ______ add up and become big things that _________ improve the environment. Let’s take action now!
could
would/can
采取行動
4c
Make a list of things that people can do to help the environment and discuss your list with your partner.
use public transportation (n.交通運輸);
turn off the lights when you leave a room;
use reusable bags instead of plastic bags;
ride your bike or walk to school or work;
stop using paper napkins(餐巾紙);
recycle books and paper
…
Discussion
I think that everyone should use public transportation.
I disagree. It’s difficult for parents with young children to use public transportation…
Should we let them disappear
My slogans
Save the animals !
Save ourselves !
Protect the animals !
Protect ourselves !
No trading , no killing !
Say no to shark fin soup !
Say no to eating the animals !
Let’s take action now !
Come on !
Homework
口頭作業
1. Listen to 3a. Then recite it.
書面作業
1. Write an article about a kind of endangered animals to call on people to save them.
2. Review the grammar that we have learned
today and do exercises in your exercise book.

展開更多......

收起↑