Section A (1a-2d)
Unit 13 We're trying
to save the earth!
学习目标
Key words & phrases:
litter, bottom, fisherman, coal, ugly, advantage, cost,
wooden, plastic, make a difference
Key sentences:
1. The river was dirty. Even the bottom of the river
was full of rubbish.
2. But it used to be so clean!
3. Yes, but people are throwing litter into the river.
Read and learn
Words and expressions
Lead in
The earth is polluted.
air pollution
The factories that burn
coal pollute the air with
a lot of black smoke.
water pollution
Factories put waste
into the river.
litter v. 乱扔
n. 垃圾
rubbish waste
垃圾 废弃物
mobile phone pollution
noise pollution
There are
more
cars on
the road.
Presentation
1a
Here are some words related to
different kinds of pollution. Write them
in the box below. Then add more
words.loud music cars rubbish planes
littering ships factories smoking
building houses mobile phones
noise pollution
____________
____________
____________
____________
air pollution
___________
___________
___________
___________
water pollution
____________
____________
____________
____________
loud music
planes
mobile phones
factories
cars
smoking
ships
factories
littering
rubbish
building houses
building houses
1b Listen and complete the sentences.
What was the problem?
The river was _____________. Even the
bottom (底部) of the river was full of
_________. There were no more ______
for fishermen (渔民) to catch.
really dirty
rubbish fish
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
waste
government
close down
clean up
1c
The river was dirty. Even
the bottom of the river
was full of rubbish.
But it used to
be so clean!
Role-play the conversation.
Yes, but people are
throwing litter into
the river.
Everyone in this town
should play a part in
cleaning it up!
Make conversations using the pollution in
1a.
... ...
Language
points
1. We’re trying to save the earth!
我们正在竭尽全力拯救地球!
try to do sth.=try one’s best to do sth.
努力去做某事。
e.g. Every student should try to study
hard in order to study in a good
university.
为了进入一所好大学学习，每个学生
都应该努力学习。
2. Here are some words related to
different kinds of pollution.
be related to 与……有关
e.g. I am not related to him in any way.
我和他无任何关系。
3. Everyone in this town should play a part in
cleaning it up!
play a part in 在……方面起作用
e.g. A good diet plays a large part in
helping people live longer.
健康的饮食在帮助人们长寿方面起着
非常大的作用。
play a part 在……中扮演角色
e.g. He was invited to play a part in this TV
play. 他被邀请参加这个电视剧的演出。
4. Even the bottom of the river was full of
rubbish.
Yes, but people are throwing litter into the
river.
litter和rubbish都可指“垃圾”，用作不可
数名词。
rubbish指“没用的东西(被扔或将要丢弃的
无用的东西)”不可回收。
litter指“(室内或公共场所)乱扔的废物(纸屑、
不要的包装纸、废瓶等)”还可回收。
e.g. Throw the rubbish out.
把垃圾扔出去。
The room is full of rubbish.
房间里堆满了垃圾。
Pick up your litter after a picnic.
野餐后将废弃物收拾好。
2a
Listen to the interview. Circle the
kinds of pollution that Jason and
Susan talk about.
A. 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 (丑陋的) ones.
are throwing away
public places
Use the information in 2a and 2b to role-play
conversations between Jason and Susan.
2c
The air has become
really polluted
around here. I’m
getting very worried.
Yes, I used to be
able to see stars
in the sky.
The problem
is that…
What should we do to save the
earth?1. Turn off the lights when you leave a room.
关掉
2. stop riding in cars
3. stop using paper towels or napkins（餐巾，
餐巾纸）
4. recycle books and paper
回收利用
5.
...
2d Read 2d and complete the chart.
Problems Solving problems
air pollution
waste pollution
rubbish
take the bus, subway or ride a
bike instead of driving
bring a bag to go shopping, never
take wooden chopsticks or plastic
forks but use the ones at home
while buying takeway food
throw rubbish in the bins
Jason and Susan, what are your ideas
for solving these problems?
Language
points
1. This is turning beautiful places into ugly ones.
turn… into… 把……变成……
e.g. The icy rain seemed like to turn into snow.
冻雨似乎又变成雪花的模样。
2. It’s good for health and it doesn’t cost
anything!
cost v. 花费；使付出
指花费金钱，主语通常是物。cost的过去式
和过去分词均为cost。
e.g. The new shirt cost Mr. Wang 200 yuan.
王先生花了200元买了新衬衫。
How much does the new computer cost?
新电脑花了多少钱？
take, spend, pay & cost
take，spend，pay和cost都可以表示“花
费”，但它们的用法各有不同。
1) take多表示花费时间，常用于It takes sb.
some time to do sth.这一句型中，其中it
作形式主语。
e.g. It usually takes me 40 minutes to
cook the dinner.
2) spend多表示花费时间和金钱，主语通常是
人，常用于sb. spend(s) some time / money
on sth.和sb. spend(s) some time / money (in)
doing sth.两种句型。
e.g. David spent 2,000 yuan on the new
machine.
My father spends an hour (in)
watching the news on TV every day.
3) pay多表示花费金钱，主语通常是人，常用
于sb. pay(s) some money for sth.句型。
e.g. Tommy paid 20 yuan for his
breakfast yesterday.
4) cost多表示花费金钱，主语通常是物，常用
于sth. cost(s) (sb.) some money句型。
e.g. The new dress cost Linda 88 yuan.
根据句意用take, spend, pay或cost的适当
形式填空。
1. That new car ________ them lots of money.
2. Mona __________ 50 yuan on the books just
now.
3. It usually _______ me an hour to do my
homework.
cost
spent
takes
4. You should __________ some time
practicing your pronunciation.
5. My brother _______ 6, 000 yuan for the
new computer yesterday.
spend
paid
3. So together, our actions can make a difference and
lead to a better future!
make a difference (to…)
(对……)产生影响或作用
e.g. Do you think his words would make
any difference to the final decision?
你认为他的话会对最后的决定产生影响吗？
The new teacher always encourages little
Tom. This has made a big difference to him.
新来的老师总是鼓励小汤姆。这对他影响很大。
用动词的适当形式填空。
1. We’re trying _______ (save) the earth.
2. There are too many ____ for __________
to catch (fish).
3. It’s bad for the environment to use
_________ (wood) chopsticks.
to save
fish
wooden
fishermen
口头作业 (Oral work)
熟读课文Unit 13 Section A (2d)
书面作业 (Writing work)
学练优 Unit 13 Section A
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