课件32张PPT。Unit 8 We’re trying to save the earth!
Section Anoise pollutionLead inair pollutionwater pollutionland pollution1a Here are some words related to different kinds of pollution. Write them in the box below. Then add more words.loud musicrubbishcarsplaneslitteringshipsfactoriessmokingbuilding housesmobile phones1b Listen and complete the sentences.dirtyrubbishfishlitterwastegovernmentsclose downclean up1c. Role-play the conversation. Then make your own conversations about the kinds of pollution in 1a.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 throwing litter into the river.
Tony: Everyone in this town should play a part in cleaning it
up!play a part in doing sth. 在……中起作用2a. Listen to the interview. Circle the kinds of pollution that Jason and Susan talk about.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.
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.A. land pollution B. air pollution
C. noise pollution D. water pollutionmore carspolluteare throwing awaypublic places2c. Use the information in 2a and 2b to role-play conversations between Jason and Susan.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 ...be able to 能；会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. There are other advantages of bike riding. 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.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! Languages points1. Well, to cut down air pollution, we should take the bus or subway instead of driving.为了减少空气污染，我们应该乘公共汽车或地铁，而不是开车。
（1）cut down意为“减少，缩减；砍倒（树木）”。
cut的其他常用搭配：
cut in插嘴 cut out剪下 cut up切碎
(2)instead of意为“代替；而不是”，of是介词。◆即学即练
①He _____ the tree and cut it up for firewood.
A. cut down B. cut up C. cut out D. cut in
②—Let’s go hiking ______ staying at home, shall we?
—Good idea.
A. instead of B. in order to
C. as well as D. in addition to
答案：①A ②A2.cost动词，意为“花费”，作名词时意为“花费；价钱”。
◆易混辨析
人+spend+时间/金钱+(in) doing或者人+spend+时间/金钱+on+sth.
人+pay+金钱+for+某物
某物+cost+人+金钱
It takes +人+时间+ to do sth.
◆即学即练
用spend，cost，pay翻译下列句子
我花了10元买这支钢笔。
________________________________________
答案：
I spent ten yuan buying/on the pen.
The pen cost me ten yuan.
I paid ten yuan for the pen.3. So together, our actions can make a difference and lead to a better future!所以只要一起，我们的行动就会产生效果，创造一个更好的未来！
(1)make a difference意为“起作用；有影响”，difference前可以加great等形容词，也可加no，表示否定意义；在否定句中a改为any。例如：Whatever she did, it made no difference.不管她做了什么都没有影响。
(2)lead to意为“导致；通向”。例如：This path leads to the next village. 这条小路通往邻近的村子。◆即学即练
①它不会对这个世界造成影响。
It wouldn’t ______ _______ _______ to the world.
②辛勤工作能带来成功，失败在于懒惰。
Hard work _______ ________ success and failure often lies in laziness.
答案：①make any difference ②leads toSave the Sharks!
Many have heard of shark fin soup. This famous and expensive dish is especially popular in southern China. But do you realize that you’re killing a whole shark each time you enjoy a bowl of shark’s fin soup?
When people catch sharks, they cut off their fins and throw the shark back into the ocean. This is not only cruel，but also harmful to the environment. Without a fin, a shark can no longer swim and slowly dies. 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. Many believe that sharks can never be endangered because they are the strongest in their food chain. But in fact, around 70 million sharks are caught and traded in this industry every year. The numbers of some kinds of sharks have fallen by over 90 percent in the last 20 to 30 years.
Environmental protection groups around the world, such as WildAid and the WWF, are teaching the public about “finning”. They have even asked governments to develop laws to stop the sale of shark fins. So far, no scientific studies have shown that shark fins are good for health, so why eat them? Help save the sharks! 3a.Read the passage about sharks and complete the fact sheet below.Around 70 million. Over 90 percent. Wild Aid and the WWF. In southern China. 3b. Read the passage again and fill in the blanks with the words in the box.1. Many people do not realize they are killing a whole shark _____ they enjoy a bowl of shark fin soup.
2. Sharks are at the top of the food chain, _____ if their numbers drop, the ocean’s ecosystem will be in danger.
3. Many think that sharks are too strong to be endangered, _____ they are wrong.
4. _________there are no scientific studies to support this, a lot of people believe that shark fins are good for health.
5. Sharks may disappear one day_____ we do not do something to stop the sale of shark fins.whensobutAlthoughifGrammar Focus4a Fill in the blanks with the correct forms of the verbs in brackets.Joe: ________you ever________ (take) part in an environmental project?
Ken: Yes, I have. I_________ (help) with a Clean-Up Day last year. It was___________ (consider) the biggest clean-up project this city______ ever______ (have).
Joe: How many people________ (take) part?
Ken: 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.
Ken: Yes, we can't afford to _______(wait) any longer to take action!Havetakenthinkhelpedconsideredhashadtookcametryingwait4b. 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 electricity by turning off the lights when you leave a room. You _________also use reusable bags instead of plastic bags. I think it's a great idea that you now _______ pay for plastic bags in some stores. And instead of driving to school or work, you________ ride your bike or walk. If it’s far, you_________ take the bus. All these small things _________add up and become big things that________ improve the environment. Let's take action now!may/mightmust/shouldcancan/couldhave tocouldcanshouldwouldPractice用所给词的适当形式填空
1.Plastic bags are _____(harm) to the ocean.
2.Mum _____(pay) for my driving lessons last Monday.
3.My sister can’t afford ____(buy) the car now.
4.She was chosen to take part in the _____(science) research.
5.You can also use ____(reuse) bags instead of plastic bags.
答案：1. harmful 2.paid 3.to buy 4.scientific
5.reusableGuessing Game:
Can you guess what animals they are?1. They look like a cow, but they live in the water.
2 . They are furry enough to keep out the cold. They are all white and only live in the North Pole.3. They are enormous and have long trunks.They live in Africa and Southeast Asia.
4. They only live in Australia and have pockets to keep their babies safe.
5. They look like monkeys but are bigger than monkeys. They can imitate what people do.
6.They are spotted and aggressive. They run fast.7.They live only in China and eat bamboo.8. They are shy, have red eyes, like eating carrots and can run fast.10 .They can learn to speak. They’re playful.9. They are soft and have long bodies. They can “walk”quickly on the water without feet.Do you think they are happy?Do you think zoos are good for animals?Homework
Write a passage to give your own opinions on environmental protection.Facts speak louder than eloquence.
事实胜于雄辩。 课件35张PPT。Unit 8 We’re trying to save the earth!
Section Bendangered
animals desertificationpollutionThe world’s problemsLead instop riding in cars recycle books and paper turn off the lights turn off the shower don't use paper napkins 1a What can we do to help save the earth? Rank these items from the easiest(1) to the most difficult(5).___ stop riding in cars
___ recycle books and paper
___ turn off the lights when you leave a room
___ turn off the shower while you are washing your hair
___ don’t use paper napkins51423PresentationA: Recycling paper is really easy.1b PAIRWORK
Compare your answers.B: I agree. But it’s hard to stop riding in cars.1c Listen and check( )the things that Julia and Jack talk about.1d Listen again. Check ( ) the things that Julia is doing now, the things she will do in the future and the things she would never do.Things Julia and Jack talk aboutThings Julia is doing nowThings Julia will do in the futureThings Julia would never do____ turning off the lights___ turning off the shower___ taking your own bags when shopping
___ not riding in cars___ riding a bike___ recycling paper1e PAIRWORK
Making a conversation using the information from the chart above. Say what is true for you.A: We really shouldn’t use paper napkins, you know.
B: I know. I stopped using them last year.Rethink, Reuse, Recycle!
Do you often throw away things you don’t need anymore? Have you ever thought about how these things can actually be put to good use? Nothing is a waste if you have a creative mind. You have probably never heard of Amy Hayes, but she is a most unusual woman. She lives in a house in the UK that she built herself out of rubbish. The windows and doors come from old buildings around her town that were pulled down. The top of the house is an old boat turned upside down. And the gate in front of her house is made of rocks and old glass bottles. Amy recently won a prize from the Help Save Our Planet Society. The president said, “Amy is an inspiration to us all.”Amy isn’t the only one who is good at recycling.
Jessica Wong from Hong Kong uses old clothes that
people don’t wear anymore to make bags. She has
been doing this for a few years now. She opened a
small shop where she sells her bags, and she has also
set up a website to sell them online. She especially
likes to use old jeans to make handbags. Her bags are
cute and useful. “I plan to write a book about new
ways to use old clothes,” she said. “I hope people can read my book and enjoy it!” Wang Tao set up a small business in Shanghai four years ago. He is known for using iron and other materials from old cars to make beautiful art pieces. Some are large pieces that look like animals or humans, and some are smaller pieces you can put at home. The more popular works can even been seen in art shops around the city. Wang Tao hopes to set up a “metal art” theme park to show people the importance of environmental protection. Not only can the art bring happiness to others, but it also shows that even cold, hard iron can be brought back to life with a little creativity.Language points
1. Do you often throw away things you don’t need anymore?
你经常将你不需要的东西扔掉吗？
throw away意为“扔掉；抛弃”。例如：
I never throw clothes away.我从不丢弃衣服。
◆即学即练
扔掉食物是种浪费。
It is a waste to _____ ______ food.
答案：throw away2.Have you ever thought about how these things can actually be put to good use?你有没有考虑过怎么样好好利用这些东西？
put sth. to good use意为“好好利用”，make good use of也意为“好好利用”，如put the money to good use好好利用这笔钱
◆即学即练
You should make good use of every minute.
You should ____ every minute ____ _____ ______.
答案：put; to good use3.The windows and doors come from old buildings around her town that were pulled down.窗户和门来自她城镇周围被推倒的旧建筑。
pull down…意为“拆下；摧毁”，宾语为代词时应放在pull与down之间；pull为动词，意为“拉；拔；拖”。例如：
She pulled the drawer open.她拉出了抽屉。
◆即学即练
The building is too old. We have to _____ and build a new one.
A. pull down it B. pull it down C. pull it off D. pull off it
答案：B4.The top of the house is an old boat turned upside down.屋顶是一只倒放的旧船。
upside down意为“上下颠倒；倒转”，常与turn搭配构成turn sth. upside down，意为“把某物翻过来。例如: Turn the box upside down.把盒子翻过来。
◆即学即练
他把杯子翻过来了。He turned the glass ____ _____.
答案：upside down5. She opened a mall shop where she sells her bags, and she has also set up a website to sell them online.她开了一家小店卖她的包，还建了一个网站在网上卖包。
set up意为“建立；创立；开办”，是“动词+副词”型短语动词，与establish是同义短语。set的其他搭配还有set an example“树立榜样”，set out“出发”等。
◆即学即练
他们打算为家乡的孩子们建一所新的学校。?
They plan to _____ _____ a new school for children in their hometown.
答案：set up6. Not only can the art bring happiness to others, but it also shows that even cold, hard iron can be brought back to life with a little creativity.艺术不仅能带给其他人快乐，而且运用一点创意就赋予冰冷、坚硬的铁生命。
bring back“恢复；使想起；归还”，bring back to life意为“使复活；给……以活力”。例如：
Once someone has died, he cannot be brought back to life.人一旦死了, 即不能复生。
◆即学即练
这次旅行唤起了许多美好的回忆。
This trip ___ _____ a lot of happy memories.
答案：brought back Read the passage in 2b and complete the chart below.Amy HayesJessica
WongWang Taorubbish, old buildings, an old boat, rocks and old glass bottlesold clothes, old jeansiron and other materials
from old carsa house bags, handbags beautiful art pieces.She2c. Fill in the blanks with the correct forms of the phrases in the box.pulled downout of builtput to good useset up known for not only but also 3a. Think about the environment in your town / city and complete the chart below.
Which parts of the town / city have a nice environment ? Why are they nice? Which parts need to be improved? Why?Writing
3b. Write a letter to the city mayor about the problems and your suggestions.
In your letter, describe the environmental problems in your town/city.
· What are the problems?
· Where are they?
· What or who is causing these problems?
Then, give suggestions or possible ways to solve the problems.
I think that...
We should/could ...
I suggest ...
SampleDear sir or madam,
The environmental pollution is worse and worse today. We can’t afford to wait any longer to take action.
Water is polluted in some cities and countryside; we have no clean water to drink. Many trees are being cut down, some animals are getting less and less. Some factories are producing dirty air into the sky, the population is increasing faster and faster, resources are getting less and less…etc. .Not only does it affect our lives and health, it also has a great effect in the future. People's health has been greatly affected by air, noise and water pollution. Many people died of diseases.
In order to live a better life, we need protect our world. We shouldn't throw away rubbish everywhere. We want to recycle, reduce，reuse things . Don't waste things, this saves money and reduces pollution. Use things for as long as possible. We don't use plastic bags. We must plant more trees and stop the people cutting them down. We hope our world will be more and more beautiful.
Yours,
Jim Self Check 1.Write different forms of the words. Then add more to each group.pollutionactor/actressbuildinginspirationprotectionscientifichealthysouthernharmfulfamouscreativityimportancedifferenceslowlyprobablyrecentlyreallywooden2. Match each statement with the grammar structure.特殊类型的语态转换
一、含双宾语的主动句变被动句
1.把间接宾语变为主语，直接宾语仍放在动词后。例如：
He told us a story. → We were told a story by him.
2.把直接宾语变为主语，间接宾语前要加to(在send, pass, write , give, show, bring 等动词后）或for(在buy, cook, make, choose, order等动词后)。例如：
My teacher often gives me learning advice. →
Learning advice is often given to me by my teacher.Grammar二、含复合宾语的主动句变被动句
在主动句中省略to 的不定式，变被动句时，要添加to。例如：
He made me wait for a long time. →
I was made to wait for a long time by him.
这样的动词有hear, see, notice, watch, feel, make, have, let等。
三、含动词短语的主动句变被动句
不及物动词加介词或副词构成的短语，相当于及物动词，在语态转换时，不能漏掉介词或副词。例如：
They take good care of the babies. →
The babies are taken good care of by them.Ⅰ.Can you see what these things are made from? Try to think out more ways to recycle these things.PracticeHomework
Write a passage to give your opinions about solving environmental problems in your school.Do not pray for easy lives, pray to be stronger men.
不要祈祷舒适的生活，祈祷自己变得更坚强。
