高中英语 Unit 7 The sea Lesson 26 Protecting the Sea课件 北师大必修3

1、2021/8/11 星期三1Unit 7 The Sea26 Protecting the Sea2021/8/11 星期三2How is the sea important to people?People can get sea food such as: fish , sea animals and plants; The sea is rich in many natural resources. we can get oil, natural gas and some metals, besides, the sea has a great effect on climate on

2、the earth.2021/8/11 星期三3Japanese ship 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 without limit, as a result, do harm to the sea.2021/8/11 星期三4over-fishingHarvest fish now ,What about the future?202

3、1/8/11 星期三5What happened?The oil tanker was upset, oil poured into the sea.What is the result?2021/8/11 星期三6Who can save the poor birds?2021/8/11 星期三7 In 1989 an oil tanker hit a rock off the northwest coast of Alaska. 35,000 tons of oil poured into the sea. The accident was one of the worst in hist

4、ory. More than 34,000 birds and 10.000 animals were killed. 4,8oo square kilometers of ocean were polluted.2021/8/11 星期三8The Sea is weepingWhat will happen?industrial waste2021/8/11 星期三9red tideIs there nothing with us?2021/8/11 星期三10 China has been experiencing increasing red tides off the Chinese

5、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（经正式鉴定的）causing 240 million U.S. dollars in direct economic losses. The 45 major red tides occurred in the Bohai Sea,

6、 the Yellow Sea, the East2021/8/11 星期三11China 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（积累）of organic pollutants blamed（归咎于有机污染物） for the growing outbreaks of disastrous red tides. Red tides

7、may also destroy marine lives（海洋生物） and bring harm to marine cultivation industries(海洋养殖业).2021/8/11 星期三121. You are likely to notice something about sea pollution in your city or hometown, please talk about it . 2021/8/11 星期三132. If we go on polluting the sea what is the result? If the government g

8、o on allowing the industrial waste from factories 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

9、will not see beautiful blue sea.2021/8/11 星期三143.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 oil2021/8/11 星期三15The people of the Green Peace Organization are struggling with the ship for catching

10、whales.What are they doing?2021/8/11 星期三16Zhi Hong and Fang Zhou are also talking about protecting the sea . What will they say?We should spread the knowledge about protecting the sea and let people realize the importance of the sea.2021/8/11 星期三17Listen to the tape and choose the right answer. 1. W

11、hat can be done about over fishing? man-made raising fish B. In the worst areas they ban fishing for several yearsC. control the number of fish people can catch C. control the number of fish people cancatch2021/8/11 星期三182.Whats the result of over fishing?A. there are less fish to catch B. people ca

12、n fish too muchC. They can catch more fish than before by better technologyA. there are less fish to catch2021/8/11 星期三193. What are some government departments doing about sea pollution?A. punishing people who keep a record of levels of populationB. thinking of ways to reduce populationC. all depar

13、tments must be responsible for finding where pollution comes from B. thinking of ways to reduce population2021/8/11 星期三20Listen to the tape again and fill in the tape.1.Thats when people fish _and the number of fish_. Some fish may disappear altogether.2.So there are more fisherman _? Well, they hop

14、e to_, but there are _to catch, so they_.too muchfalls too lowcatching more fishcatch more fishless fishsimply cant2021/8/11 星期三213. It mostly comes from _waste from_ and _ waste from_.4.They also try to help people to _, so there are _trying to_.less peoplemaking a living from fishingindustrialagri

15、culturalfactoriesfarmingget other kinds of jobs2021/8/11 星期三222. What is the problem 2?pollutionOver-fishingListen to the interview again and answer the questions1.What is the problem 1?2021/8/11 星期三233.What are the reasons for problem 2? too many fisherman in the same place, better technology can c

16、atch more fish.4. What are the causes of problem1?chemicals , plastic, rubbish, oil, industry waste, from factories and agricultural waste.2021/8/11 星期三245. What are the solutions to problem 1? government departments, look for ways to reduce pollution , keep a record of levels of pollution, finding

17、where it come from, punishing polluters who break the law.6. What are the solutions to problem 2? Control the number of fish that people can catch ,ban fishing completely for a few months, help people to get other kinds of jobs. 2021/8/11 星期三25Read through the example dialogue then make up a new one

18、 with your partner.A: What are you going to do for your sea project?B: Im interested in history of sea travel.A: Oh, really?B: Yes. I want to know how human beings crossed the sea to land other places in small boat.2021/8/11 星期三26A: 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 subject?B: I know it wasnt Columbus but the Viking reached America first.2021/8/11 星期三27A: Oh, were they?B: Yes, look at the old map. It is thought that the Viking draw the map that was used by Columbus later.A: Mm.