北师大版必修3-Unit7-Lesson-2-protecting-the-sea课件.ppt--（课件中不含音视频）

1、Lets enjoy the wonderful sea and its rich recoursesthe pure and beautiful seaThe sea is not only beautiful,but also very important to us.How do people use the sea?Do you know how important the sea is to us?_ fish in the sea,find many more things for food in the sea-_ foodswim in the seause the wave

2、in the sea to _ electricitydevelop the _ and natural gas in the sea_ the goods by seacatchseaproducepetroltransportdirtyHowever,do you know how the sea is now?The sea is being ill now.It is badly polluted.pollutedOil and petrol polluted the sea Two oil-ships crashed and the oil leaked into the sea S

3、ea pollution caused fish and sea animals to dieRubbish and plastic polluted the water.over-fishingchemical wasteagricultural wasteindustrial wastechemicalplasticoilrubbishoverfishingWe should protect the sea.What is Zhi Hongs project about?Its about protecting the sea.problem1Reasons for problem2 co

4、ntrol the number of fish that people catch,ban fishing completely and help people to get other jobsInteraction Some fish can disappear (1)_Altogether.now there are too many (2)_fishermen fishing in the that there are more same place.fishermen now than there were before?It mostly comes fromIndustrial

5、 waste from (3)_factories and agricultural a big problemwaste from faming.Really?Do you meanIt sounds likeSome government (4)_Departments are tryingto deal with the situation.often its quite difficult (5)_to find whos responsible _ for pollution.They also try to help (6)_people to get other kinds of

6、 jobs so there are lesspeople trying to make a living from fishingAre they?Yes,I supposeit must be Thats a good idea.Listen to the interview again,and choose the right words and expressions to complete the sentences1)Really?2)Do you mean 3)It sounds like4)Are they?5)Yes,I suppose it must be.6)Thats

7、a good idea.TapescriptFang Zhou is asking Zhi Hong about her science project.FZ:Hey,Zhi Hong,what did you do for your science project?ZH:I did something about protecting the sea.FZ:Protecting the sea from what?ZH:Well,first theres pollution.Thats a big problem.And second,theres over-fishing.FZ:Whats

8、 over-fishing?ZH:Thats when people fish too much and the number of fish falls too low.Some fish may disappear altogether.FZ:Really?ZH:Yes,now there are too many fisher men fishing in the same place.FZ:Do you mean that there are more fishermen now than there were before?ZH:Yes,there are many more.And

9、 fishermen today have better technology so they can catch more fish than before.FZ:So there are more fishermen catching more fish?ZH:Well,they hope to catch more fish,but there are less fish to catch,so they simply cant.FZ:Thats bad.ZH:Yes,and pollution is very bad,too.FZ:What causes pollution?ZH:Al

10、l sorts:chemicals,plastic,rubbish,oil;most of them come from industrial and agricultural waste.FZ:It sounds like a big problem.ZH:Yes,it is a big problem.FZ:How have these two problems been handled?ZH:Well,some government departments are trying to deal with the situation.FZ:Are they?ZH:Yes,some look

11、 for ways to reduce pollution,some keep a record of levels of pollution,other departments are responsible for finding where it comes from and punishing people who have broken the law by causing pollution.Of course,often its quite difficult to find whos responsible for pollution.FZ:Yes,I suppose it m

12、ust be.What about over-fishing?What can be done about that?ZH:The government tries to control the number of fish that people can catch.In the worst areas they ban fishing completely for a few months at a time so that the fish numbers can grow again.They also try to help people to get other kinds of

13、jobs so there are less people trying to make a living from fishing.FZ:Thats a good idea.ZH:Lets hope it works!over-fishingpollutionindustrial wasteagricultural wasteplasticoilchemicalsrubbishlistening strategies use the headings or topics to help youhow to make notesthe problems of the seaWhat is ha

14、ppening to the sea?Agriculture also has bad effects on the sea.What is happening to the sea?Some factories pull the waste water into the sea.What is happening to the sea?The oil makes the sea polluted.What is happening to the sea?What is happening to the sea?Rubbish is polluting the sea and the beachWhat is happening to the sea?Plastic,which wont break down,is called White Pollution