人教版九年级全Unit 13 We’re trying to save the earth Section A课件(共49张PPT)

(共49张PPT)
Unit 13
Unit 13
Section A 1
1a-2d
The earth is polluted.
air pollution
The factories that
burn coal pollute
the air with a lot of
black smoke.
n. 煤炭
Factories put waste into the river.
water pollution
mobile phone pollution
litter v. 乱扔
n. 垃圾
rubbish waste
垃圾，废弃物
People should throw away litter in the bin.
n. 垃圾箱
noise pollution
There are more
cars on the road.
1a
Here are some words related to different kinds of pollution. Write them in the box below. Then add more words.
noise pollution
____________
____________
____________
____________
air pollution
___________
___________
___________
___________
water pollution
____________
____________
____________
____________
loud music
planes
mobile phones
factories
cars
smoking
ships
factories
littering
rubbish
building houses
building houses
loud music cars rubbish planes
littering ships factories smoking
building houses mobile phones
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
Listen again and answer the following questions.
What does Tony want to do later this afternoon
He wants to go swimming with Mark in the river later this afternoon.
2. Why doesn’t Mark want to go with Tony
Because the river was really dirty. Even the bottom of the river was full of rubbish, and there were no more fish for fishermen to catch.
3. How was the river in the past
It used to be so clean. It has been the nicest river in this town.
1c
Role-play the conversation
The river was dirty. Even the bottom of the river was full of rubbish.
But it used to be so clean!
Yes, but people are throwing litter into the river.
Everyone in this town should play a part in cleaning it up!
Practice
Make conversations using the words in 1a.
The river has always been the nicest river in this town.
Yes, it used to be so clean.
What caused the problem
But I was there last weekend and the river was really dirty.
Factories are also putting waste into the river.
People are throwing litter into the river.
What should we do
We should write to the government and ask them to close down the factories.
What else can we do
Everyone should help to clean up the river.
1. We’re trying to save the earth!
我们正在竭尽全力拯救地球!
try to do =try one’s best to do
努力去做某事
e.g. We’ll try to finish the work in
a week. 我们将努力在一周内完成这项
工作。
Language points
2. Here are some words related to different kinds of pollution.
be related to 与……有关
e.g. Is the driver relate to the
accident
司机和这起事故有关吗？
3. 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.
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) 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
Turn off the lights when you leave a room.
关掉
stop riding in cars
stop using paper towels or napkins n. 餐巾, 餐巾纸
recycle books and paper
v. 回收利用; 再利用
2d
Read 2d and complete the chart.
Pollution Ways to solve the problem
air pollution
waste pollution
take the bus, subway or ride a bike instead of driving
bring a bag to go shopping
never take wooden(木头的) chopsticks or plastic forks when buying takeaway food
throw rubbish in the bins
Role- play the conversation
Jason and Susan, what are your ideas for solving these problems
Yeah, or ride a bike. There are other advantages (优点) of bike riding. It’s good for health and it doesn’t cost (花费) anything!
Well, to cut down air pollution, we should take the bus or subway instead of driving.
Great ideas! What about waste pollution
Me, too. Also, I never take wooden chopsticks or plastic (塑料) forks when I buy takeaway (外卖食物) food. I
use the ones at home.
Mmm, I think simple things like bringing a bag to go shopping can help. I started doing that a year ago.
And remember to throw rubbish in the bins and keep public places clean and beautiful for everyone.
So together, our actions can make a difference and lead to a better future!
1. 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？
Language points
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)
reading the newspaper 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 80 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 practising your pronunciation.
5. My brother _______ 3,000 yuan for the new computer yesterday.
spend
paid
2. So together, our actions can make a difference and lead to a better future!
make a difference (to…)
表示(对……)产生影响或作用
e.g. Learning English well can make a
difference to your future.
学好英语会对你的前途有影响。
Make a poster!
The earth is badly polluted. Please make a poster and think of what we can do.
Save the earth!
Homework
1. Copy the new words
and remember them.
2. Read the listening
materials of 1b, 2a.