(共24张PPT)
Unit 8
We’re trying to save the earth!
Section A(1a-2d)
Learning aims
1.掌握记忆以下重点词汇、短语：litter, bottom, fisherman, coal, ugly, advantage, cost, wooden, plastic, takeaway, bin, play a part in, cut down, make a difference
2. 熟练掌握并运用以下句型：
We’re trying to save the earth.
The river used to be so clean.
The air is badly polluted.
Everyone in this town should play a part in cleaning it up!
So together, our actions can make a difference and lead to a better future!
3.通过预习，运用正确的语言谈论污染问题，怎样做到环境保护， 增强环保意识。
Warm-up: Do you know these words
litter v. 乱扔 n.垃圾；废弃物
bottom n.底部；最下部
fisherman n.钓鱼的人
(pl.) fishermen
coal n.煤；煤块
Warm-up: Do you know these words
ugly adj.丑陋的；难看的
wooden adj.木制的；木头的
plastic adj.塑料的 n.塑料；塑胶
takeaway n.外卖食物
What are these pictures about
Pollution
Leading-in:
Look at the following pictures
noise pollution
water pollution
air pollution
loud music cars rubbish planes
littering ships factories smoking
building houses mobile phones
loud music
planes building houses mobile phones
rubbish
littering
ships
factories
cars
factories
smoking
1a
What kinds of pollution
What was the problem The river was ________. Even the bottom of the river was full of ________. These were no more ________ for fishermen to catch.
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.
1b
Listen and complete the sentences.
really dirty
rubbish
fish
litter
waste
government
close down
clean up
(at )the bottom of…（在）…底部
The river was dirty.
Even the bottom of
the river was full
of rubbish.
But it used to
be so clean!
1c
Role-play the conversation. Then make your own
conversations about the kindsof pollution in 1a.
Pairwork
land pollution
air pollution
C. noise pollution
D. water pollution
2a
Listen to the interview. Circle the Kinds of
pollution that Jason and Susan talk about.
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 is turning beautiful places into ugly ones.
2b
Listen again and complete the sentences.
more cars
pollute
are throwing away
public places
be badly polluted被严重污染
pollute v.污染 ----pollution n.
throw away 扔掉
in public在公共场合
丑陋的公园
Jason: The air has become really polluted around here.
I’m getting very worried.
Susan: Yes, I used to be able to see stars in the sky.
Jason: The problem is that …
the air is badly polluted (because there are more cars on the road these days. Factories that burn coal also pollute the air with a lot of black smoke).
2c
Use the information in 2a and 2b to role-play
conversations between Jason and Susan.
(1). What are Jason’s and Susan’s ideas for cutting down air pollution
(2). What are the advantages of bike riding
(3).How to cut down waste pollution
Role-play the conversation.
2d
1. Read the conversation. Answer the questions
2d
Role-play the conversation.
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. Other advantages of bike riding are that it’s good for health and it doesn’t cost anything!
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.
2.小组间讨论粉色字体的含义
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 bins and keep public places clean and beautiful for everyone.
Interviewer: So together, our actions can make a difference and lead to a better future!
3. Role-play the conversation.
小组间讨论粉色字体的含义
产生影响
导致
1. There are other advantages of bike riding.
advantage作名词，意为“有利条件,优点,优势”，
反义词为disadvantage。
如：He had the advantage of a good education.
他具备受过良好教育的优势。
What is the advantage of using nuclear power
使用核能有何好处
advantage还可作及物动词，意为“有利于；使处于优势”。
如：It would advantage him to go abroad.
出国会对他有好处。
It would advantage you to work hard.
努力工作对你会有益。
Language points
2. It’s good for health and it doesn’t cost anything!
be good for意为“有益于；适于”，后接名词或动词-ing形式。
如：Whisky can be good for you if taken in moderation.
威士忌酒如饮用适度是有益的。
Do it up. It'll be good for you.
把它喝完，它对你有益。
Language points
3. 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. Do you think his words would mak any difference to the final decision
你认为他的话会对最后的决定产生影响吗？
Language points
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。
连接中考考点
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 practising your pronunciation.
5. My brother _______ 6, 000 yuan for the new computer yesterday.
spend
paid
练练吧
1. The street _____ ______ _____ (充满了) rubbish.
2. __________ (litter) causes pollution.
3. Factories are putting ________ (pollute) water into the river.
is full of
Littering
polluted
4. The city _________ _______ (过去) be so clean.
5. We should play a part in _________ (clean) the city up.
6. There _______ _____ _____ (过去有) so many trees on the hills.
used to
cleaning
used to be
7. 汉译英：不要将房间弄得乱糟糟的。
_______ _______ ______ the room.
8. She painted herself thick and ______.
A. ugly B. uglify C. uglily D. ugliness
Don't litter up
A
当堂检测
Enjoy a video: What should we do
Writing: We’re trying to save the earth. (the problems, reasons and the solutions.)
