人教版九年级全册Unit 13 We're trying to save the earth!SectionA（1a-2d）课件(共72张PPT，无音频)

(共72张PPT)
Unit 13
We are trying to save the earth.
Section A 1a-2d
The earth is polluted.
Unit13 we’re trying to save the earth
What is happening to the earth
Why should we try to save it
the polluted river
the foggy sky
the dying soil
the noisy street /square…
What are destroying our environment
the waste water
the waste gas from the factory
the strong flash
Unit13 we are trying to save the earth
the loud music or noise from the mall
The worse is pollution causes the climate change and global
warming , the higher temperature leads to storms and floods.
Because of pollution, our sky isn’t blue any more.
Because of pollution, the water isn’t clean any more.
Because of pollution, more and more people suffer from cancer.
Because of pollution, many animals were killed.
Because of pollution, more and more animals don’t have places to live in.
There are more and more disasters（灾难）on the earth because of pollution
air pollution
The factories that
burn coal pollute
the air with a lot of
black smoke.
n. 煤炭
Can you think of the different kinds of pollution
Factories put waste into the river.
water pollution
noise pollution
There are more
cars on the road.
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
land pollution
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
____________
____________
____________
____________
Cars factories
air pollution
___________
___________
______planes_____
___________
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
Mark: The river was dirty. Even the bottom of
the river was full of rubbish.
Tony: But it used to be so clean!
Mark: Yes, but people are littering in the
river.
Tony: Everyone in this town should play a
part in cleaning it up!
Role-play the conversation. Then make your own conversations about the kinds of pollution in 1a.
1c
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
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.
3. There is also too much rubbish and waste. People ___________________things every day.
4. People are also littering in____________ like parks. This turns beautiful parks into ugly places.
more cars
pollute
are throwing away
public places
2b
Listen again and complete the sentences.
2c
Use the information in 2a and 2b to role-play conversations between Jason and Susan.
The air has become really polluted around here. I’m getting very worried.
Yes, I used to be able to see the stars in the sky.
The problem is that there’re more cars on the road these days and factories that burn coal also pollute the air with a lot of black smoke.
...
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
Every student should try to study hard in order to study in a university.
为了进入大学学习，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
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;参与某事；起作用=play a role in
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 an important /active part in 起积极作用/扮演重要角色
4. Even the bottom of the river was full of rubbish.
Yes, but people are throwing litter into the river.
rubbish 和litter :“垃圾”，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
Throw the rubbish out.
Pick up your litter after a picnic.
5.This is turning beautiful places into ugly ones.
turn… into… 把……变成……
e.g. The icy rain seemed like to turn into
snow.
渐渐地冻雨又变成雪花的模样。
Help save the earth
We must think of better way to treat our planet in future.
What do you usually do
Are you a friend of the Earth
Take this quiz.
START
After you drink a can of cola. What do you do
I throw away cans.
I recycle cans.
You throw away the cans.
That’s bad for the Earth.
You recycle the cans.
That’s good for the Earth.
There are a lot of old newspapers at your home. What do you do
I throw the old newspapers away.
I recycle the old newspapers.
You throw old newspapers away.
You waste paper.
That’s bad for the Earth.
You recycle old newspapers.
You save paper.
That’s good for the Earth.
You use a lot of new plastic bags. That’s bad for the Earth.
You use your own bag.
That’s good for the Earth.
When you write on a piece of paper, what do you do
I write on one side only.
I write on both sides.
You use paper on one side only.
That’s bad for the Earth.
You use paper on both sides.
That’s good for the Earth.
What should we do to save the earth
stop riding in cars
stop using paper towels or napkins（餐巾，餐巾纸）
[ ta l]
recycle books and paper
回收利用
close down the factories;
help to clean up the river;
take the bus or subway;
ride a bike;
bring a bag to go shopping, throw rubbish in the cans;
turn off the lights when you leave a room;
use paper or resusable bags;
recycle books and paper;
turn off the shower when you wash your hair;
don't use napkins;
rethink, reuse, recycle ... ...
Read the conversation and complete the chart.
Problems Solving problems
air pollution
waste pollution
wooden (木头的) 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.
Interviewer: Jason and Susan, what are your
ideas for solving these problems
Jason: Well, to cut down air pollution, we should
take the bus or subway instead of driving.
Susan: Yeah, or ride a bike. There are other advantages of bike riding . It’s good for health
and it doesn’t cost anything!
2d
Role-play the conversation.
Interviewer: Great ideas! What about waste
pollution
Susan: Mmm, I think simple things like bringing
a bag to go shopping can help. I started
doing that a year ago.
Jason: Me, too. Also, I never take wooden
chopsticks or plastic forks when I buy
takeaway food. I use the ones at home.
Susan: And remember to throw rubbish in the
cans and keep public places clean and
beautiful for everyone.
Interviewer: So together, our actions can
make a difference and
lead to a better
future!
This is turning beautiful places into ugly ones.
turn… into… 把……变成……
e.g. The icy rain seemed like to turn into
snow.
渐渐地冻雨又变成雪花的模样。
cut down意为“减少；把…砍倒”，为 动词+副词 构成的短语。名词做宾语时，放在cut和down之间或down的后面均可；代词做宾语时，只能放在cut和down之间。
Eg：The apple tree was dead，so he cut it down.
那棵苹果树死了，所以他把他砍倒了。
例3 Our country is taking action to（ ）air pollution.
cut down B.cut up C.cut out D.cut off
措施减少空气污染”。
cut down意为减少，cut out 剪下，阻止，
cut off 分割开，切掉，cut up 切碎。
Well,to cut down air polution ,we should take the bus or subway instead of driving.
A
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？
词义辨析：cost/spend/take/pay
都与“花费”有关，但用法上有区别。
cost sth. costs (sb.) +money
spend 1. Sb spend+ time/money on sth.
2. Sb spend +time/money (in) doing sth.
take It takes (sb.) time +to do sth.
pay Sb pay (sb.)+money for sth.
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 _______ 6, 000 yuan for the new computer yesterday.
spend
paid
他们花两年建造这座桥。（3种）
我花了2000块钱买这台电脑。（4种）
4.There are other advantages of bike riding.骑自行车还有其他的好处。
advantage为可数名词，意为 优点，有利条件.
Eg：Being tall gave him an advantage over the other players.
他个子高，比其他运动员有利。
固定搭配：
（1） take advantage of sth/sb 利用某物/某人。
She took advantage of the children‘s absence to tidy their rooms.
他趁孩子们不在时收拾了他们的房间
（2）to （good/best）advantage （十分/最）出色地，有效地。
Eg：The photo showed him to advantage.
他在这张照片中照的挺不错的
注意 其反义词为 disadvantage，意为“不利因素，障碍，不便之处”。
Eg：There are disadvantage to the plan .
这个计划有许多不利因素。
例4 用所给词的适当形式填空
I was at a__________（advantage）compared to the younger members of the team.
disadvantage
6.Also，I never take wooden chopsticks or plastic forks when I buy takeaway food.
wooden 是由名词wood加-en构成的形容词，意为 木质的
Eg：There is a wooden box under the bed.
【拓展】wood 意为木头，木材时，为不可数名词；意为树林，林地时，为可数名词，小，接近人畜的森林。
The desk is made of _______.
The path goes through the______.
Sam lives in a nearby_woods____ and he often goes to gather_______ in the________ .
wood.
woods .
wood
woods
plastic adj .塑料的。
There is some water in the plastic cup.
【拓展】plastic n.塑料，塑胶。
The pipes are made of plastic..
例7 根据汉语提示完成句子
Cover the table with a sheet of clear（ ）（塑料）
takeaway n.（饭店等）供外卖的食物；可带走的食物
Let’s have a takeaway tonight .
注意 take away 拿走；夺走
I want to take away book which you showed me yesterday.
例8 What is the most popular English （ ）food？
A .away B . takeaway C. take up D. take off
咱们今晚吃一顿外卖的食物吧.
B
我 想 带 走 你 昨 天 给 我 看 的 那 本 书 。
7. 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
difference 前 还 可 用 much ， big ， no 等 来 修 饰 。
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。
lead to 意 为 “ 通 向 ； 引 起 ， 导 致 " ， 该 短 语 由 “ 动 词 + 介 词 " 构 成 ， 不 可 用 于 被 动 语 态 ， 后 接 名 词 或 动 名 词
Jason and Susan, what are your ideas for solving these problems
Jason and Susan are talking about how to solve pollution. To cut down air pollution, we should _______________________________ _______________. Bike riding ___________
______ and it doesn’t _____________. As for waste pollution, Susan thinks simple things like ___________________________ can help. Jason never ____________________________ _____________ when he buys takeaway food. Susan suggests that we should ____________ in the bins and keep pubic places clean.
ride a bike, take the bus or subway
instead of driving
is good for
health
cost anything
bringing a bag to go shopping
takes wooden chopsticks or
plastic forks
throw rubbish
Points on P97
try to do =try one’s best to do 努力去做某事
be related to… 与……有关
mobile phones 手机
rubbish, litter ,waste 垃圾,废物
the bottom of the river 河底
be full of 充满……
fisherman-fishermen 渔民
government 政府
throw litter into the river 把垃圾扔到河里
ask sb. to do 要求某人干某事
close down the factories 关闭工厂
clean up 打扫
used to be…过去是…
play a part in…参与，在……中扮演角色
Memory
努力去做某事
与……有关
手机
垃圾,废物
河底
充满……
渔民
政府
把垃圾扔到河里
要求某人干某事
关闭工厂
打扫
过去是…
在……中起作用，在……中扮演角色
Points on P98
be badly polluted 受到严重污染
public places 公共场所
turn…into… 把……变成……
cut down 减少
take the bus or subway instead of driving 乘坐公交或地铁代替开车
ride a bike 骑自行车
advantages of bike riding 骑自行车的好处
Points on P98
受到严重污染
公共场所
把……变成……
减少
乘坐公交或地铁代替开车
骑自行车
骑自行车的好处
Points on P98
be good for our health 对我们的健康有好处
cost，spend，take, pay 花费
wood-wooden
takeaway food 外卖食物
throw rubbish in the bins 把垃圾扔进垃圾箱
keep public places clean and beautiful 保持公共场所干净漂亮
make a difference (to) (对……)产生影响或作用
lead to… 导致，通向
Points on P98
对我们的健康有好处
花费
wood-wooden
外卖食物
把垃圾扔进垃圾箱
保持公共场所干净漂亮
(对……)产生影响或作用
导致，通向
用动词的适当形式填空。
1. We’re trying _______ (save) the earth.
2. There used to _____ (be) clean and beautiful.
3. There are too many ____ for __________
to catch (fish).
4. It’s bad for environment to use
_________ (wood) chopsticks.
to save
be
fish
wooden
fishermen
用方框中所给词的适当形式填空。
1. Don't throw _______(垃圾) everywhere.
2. In winter, many people burn ______(煤) to keep warm.
3. The police found a body at the ________(底部) of the lake.
4. The ______(花费) of living in big cities is very
high.
5. He keeps a rabbit in a big _______(木制的) box.
cost wooden, coal , bottom, litter
cost
wooden
coal
bottom
litter