课件52张PPT。Unit 13Section A 3a~3bWe’re trying to save the earth!单击页面即可演示noise pollutionwater pullutionair pullutionwaste pollutionThe earth is badly polluted.
What should we do to save the earth?Warming upLet’s take action (采取行动)Turn off the lights
when you leave a room.Recycle books and paper. Take buses instead of driving cars.Role- play the conversationwhat are your ideas for solving these problems?There are some animals are endangered. We should do something to protect the animals and the environment! Save the earth!
Save the animals!
endangered animals. SharkHave your heard of
or eaten the expensive dish?shark fin soup
鱼翅汤 n. (鱼)鳍Do you know how to make shark fin soup?catch and kill
cruel method adj.残酷的 n. 方法cut off the finsCan sharks be endangered?A large number of sharks are caught and traded every year.Read the passage and answer the question
What does the passage tell us to do?
Help save the sharks!3aTask 1: Fast reading .
Read the passage quickly and match each paragraph with the main ideas.Para 1 Something happens when
people cut off sharks fins.
Para 2 Environmental protect ion
groups have donesomething
to protect sharks.
Para 3 You are killing a whole shark
when you enjoy a bowl ofshark
fin soup,Sharks are endangered, read the
passage and judge the sentences.Read the first paragraph1. Shark’s fin（鱼鳍）soup is famous and
expensive all around the world.2. We have to kill a whole shark to get a
bowl of shark’s fin soup.×√Read the second paragraph1. People cut off sharks’ fins and throw
the sharks back into the ocean.2. Sharks are in the bottom of the food chain
in the ocean’s ecosystem.√×n. 生态系统食物链Read the third paragraph1. WildAid and the WWF are environmental
protection groups in China.2. Shark’s fins are good for health.××
1.What do people do when they catch sharks?
2.What will happen to a shark without a fin?
3.What do the two environmental protection groups ask the governments to do?
4.Are shark fins good for health?They cut off their fins and throw the shark back into the ocean.They can no longer swim and slowly dies.To develop laws to stop the sale of shark fins.No scientific studies have shown.Careful readingRead and LearnSave 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 fin soup?听说过鱼翅汤中国南部 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 been endangered because they are the strongest in their food chain.
割断，切下残忍的对……有害的食物链海洋生态系统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 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". Then 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! 行业环保小组野生救援协会世界自然基金会法律In southern China70 millionBy over
90 percentWildAid and
the WWFAfter readingDo you know them?WWF (World Wide Fund For Nature)
世界自然基金会Do you know them?WildAid 野生救援协会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. so although if but whenwhensobutFill in the blanks.3b
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 someting to stop the sale of shark fins.Althoughif so although if but whenFill in the blanks.3bGrammar Focustake part in: 参加
environmental projectturn off the lights: 关灯
when you leave the roomuse reusable bags : 可重复使用的袋子
when you are shoppingJoe: ______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). Have takenhelpedconsideredhas had参加Fill in the blanks with the correct forms of the verbs in brackets.4athinkcametryingwaittook
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!
承担得起 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. can would could have to should must may/mightmaymustcouldcould关掉可再次使用的Fill in the blanks with the appropriate modal verbs from the box.4bI 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 work. 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 actions now!
have tocancanwouldshouldcan would could have to should must may/mightA: I think that everyone should use public transportation.
B: I disagree. It's difficult for parents with young children to use public transportation...use public transportation
____________________
Make a list of things that people can do to help the environment and discuss your list with your partner.4cEndangered
animals DesertificationNatural
disastersPollutionThe world's problemsWhat can we do to help save the earth?stop riding in carsrecycle books and paper回收利用 turn off the lights when you leave a room turn off the shower while you are washing your hair don’t use paper napkins餐巾纸_____ 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 napkinsWhat can we do to help save the earth?1aA: Recycling paper is really easy.
B: I agree. But it's hard to stop riding in cars. Useful expressions:
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
not use paper napkinsListening (1c - 1d)Explanation
1. When people catch sharks, they cut off their fins and throw the shark back into the ocean. 当人们捕获鲨鱼时，他们把鱼鳍割下来，并把鲨鱼扔回到海里。
cut off: 割下
短语辨析：
cut up:切碎
Mother cut up the vegetables before cooking.
cut into:切成
He cut the tomato into pieces.Explanation
2. This is not only cruel, but also harmful to the environment. 这种方法不仅残忍，而且对环境有害。
method: 方式，方法。
You can change another method to work out the problem.
harmful:有害的（形容词）
harm:害处（名词）do harm to...:对……有害
Eating too much junk food is harmful to our health.Explanation
3. Without a fin, a shark can no longer swim and slowly dies. 没有了鱼鳍，鲨鱼就不能再游泳，并且会慢慢地死去。
without: (介词)没有,后接名词、代词、动词ing形式。
Fish can not live without water.
He left the room without saying a word.
1. In China, many shops can waste paper in order to save the energy.
2.It's ______to kill the dog to make dinner.
3. Smoking can cause cancer. So it's ________to smoke.
4. You'd better ___________the lights when you leave the room.cruel turn off recycle harmExerciserecyclecruelharmfulturn off1. I_____20 dollars for the beautiful skirt last weekend.
2.Not everybody can________the expensive big house today.
3. I think the government should make ______to punish the pollution problem.
4. In this________, I work out the math problem at last.method pay law afford Exercisepaidaffordlawsmethod
