ProtectingtheSea2-完整版獲獎課件

1、北師大高一 必修 3Unit 7Lesson 2Protecting the SeaTeaching aims:To get students to know something about the sea pollutionTo talk about how people use the seaTo practice listening for specific informationTo practice using abbreviationLets enjoy the wonderful sea and its rich recourses.the pure and beautiful

2、seaHowever, do you know how about the sea is now?DirtyPollutedThe sea is being ill now. It is badly polluted.Oil and petrol polluted the sea. Sea pollution caused fish and sea animals to die.How is the sea important to people? People can get sea food such as fish, sea animals and plants. The sea is

3、rich in many natural resources. We can get oil, natural gas and some metals, besides, the sea has a great effect on climate on the earth.Japanese ships are killing the whale.How cruel they are!The sea is important to us. But with the development of society, human beings explore and seize the sea wit

4、hout limit, as a result, do harm to the sea.Harvest fish now, what about the future?over-fishingWhat happened?The oil tanker was upset, oil poured into the sea.What is the result?Who can save the poor birds?In 1989 an oil tanker hit a rock off the northwest coast of Alaska. 35,000 tons of oil poured

5、 into the sea. The accident was one of the worst in history. More than 34,000 birds and 10,000 animals were killed. 4,800 square kilometers of ocean were polluted.industrial wasteThe Sea is weeping.What will happen?Is there nothing with us?red tideChina has been experiencing increasing red tides off

6、 the Chinese coast since the 1990s due to increasing pollution caused by industrial waste.According to an official report, during the past 20 years, a total of 200 red tides have been registered (經(jīng)正式鑒定的) causing 240 million U.S. dollars in direct economic losses. The 45 major red tides occurred in t

7、he Bohai Sea, the Yellow Sea, the East China Sea and the South China Sea. About 4 billion tons of industrial waste water are discharged （排放） into the sea every year , resulting in the accumulation（積累）of organicpollutants blamed (歸咎于有機污染物) for the growing outbreaks of disastrous red tides. Red tides

8、may also destroy marine lives (海洋生物) and bring harm to marine cultivation industries (海洋養(yǎng)殖業(yè)).1. You are likely to notice something about sea pollution in your city or hometown. Please talk about it. 2. If we go on polluting the sea what is the result? If the government go on allowing the industrial

9、waste from factories to pour into the sea and rivers, it is not safe to eat the fish. If we go on pouring the rubbish into the sea, it is no longer safe for swimming, as a lot of diseases are present in the water. If we go on polluting the sea like that, children in the future will not see the beaut

10、iful blue sea.3. What measures do you think we should take? The government should make laws to protect the sea. We take action like them to protect the sea. cleaning oilThe people of the Green Peace Organization (綠色和平組織) are struggling with the ship for catching whales.What are they doing? We should

11、 spread the knowledge about protecting the sea and let people realize the importance of the sea. Zhi Hong and Fang Zhou are also talking about protecting the sea. What will they say?Listen to the tape and choose the right answer. 1. What can be done about over fishing?A. man-made raising fish B. in

12、the worst areas they ban fishing for several yearsC. control the number of fish people can catchC2.Whats the result of over fishing?A. There are less fish to catch. B. People can fish too much.C. They can catch more fish than before by better technology.A3.What are some government departments doing

13、about sea pollution?A. Punishing people who keep a record of levels of population.B.Thinking of ways to reduce population.C. All departments must be responsible for finding where pollution comes from.BListen to the tape again and fill in the blanks.1. Thats when people fish _ and the number of fish

14、_. Some fish may disappear altogether.too muchfalls too low2. So there are more fishermen _? Well, they hope to _, but there are _ to catch, so they _.catching more fishcatch more fishless fishsimply cant3. All sorts: chemicals, plastic, rubbish, oil; most of them come from _ and _.industrialagricul

15、tural4.They also try to help people to _ so there are _ trying to _.less peoplemaking a living from fishingget other kinds of jobs Listen to the interview again and answer the questions.1. What is the Problem 1? Pollution.2. What is the Problem 2? Over-fishing.3. What are the causes for Problem 2? T

16、oo many fishermen in the same place, better technology can catch more fish.4. What are the causes of Problem 1? Chemicals, plastic, rubbish, oil, industrial waste, and agricultural waste.5. What are the solutions to Problem 1? Government departments look for ways to reduce pollution, keep a record o

17、f levels of pollution, finding where it comes from, punishing people who cause pollution and break the law.6. What are the solutions to Problem 2? Control the number of fish that people can catch, ban fishing completely, help people to get other kinds of jobs. A: What are you going to do for your se

18、a project?B: Im interested in history of sea travel.Now work in pairs. Take turns to tell each other about your projects. When you listen, try to show interest. A: Oh, really?B: Yes. I want to know how human beings crossed the sea to land other places in a small boat.A: Oh! It is hard to imagine.B: Mm. They were brave and clever enough to explore unknown land.A: What do you already know about the