1、Enjoy a video and try to find the slogan for the Earth Day,See Oceans Save Oceans,Oceans under Threat,Rearrange the sentences,People use oceans for trade, travel, tourism, and recreation.,a. Oceans link countries all over the world; seawater circulates around the globe, so what we do in one part of

2、the ocean can affect another.,b. All these activities can have harmful effects on the oceans and the creatures that live in them.,c. We also take food and resources from oceans.,d. Overfishing and pollution are the most common problems.,why,huge net the same species of,food chain,Overfishing (1st li

3、stening),In parts of the world, fishing boats with huge nets sometimes take _of the same species of fish from a small area, causing some ocean waters to be overfished. As a result, there are _ fish left to breed in these areas. This affects _in the food chain, and it affects _ because there eventual

4、ly may not be enough fish left to eat. In some parts of the world, limits have been set for _fish to be caught at one time.,Whats the solution to overfishing?,too many,not enough,other fish,people,the number of,set limits for,1,2,3,4,5,Overfishing (2nd listening),In parts of the world, fishing boats

5、 with huge nets sometimes take too many of the same _of fish from a small area, _ some ocean waters to be overfished. _, there are not enough fish left to breed in these areas. This affects other fish in the _, and it affects people because _. In some parts of the world, _ for _fish to be caught _.,

6、species,causing,As a result,food chain,there eventually may not be enough fish left to eat,limits have been set,the number of,at one time,What other limits can be set by the law-makers?,1,2,3,4,5,6,7,8,marine creatures / life,Threats to,natural cycles of marine life,disturb,souvenirs,diver,Threats t

7、o Marine Life,Threats to Marine Life,Answer some questions: Why are some species of marine creatures now rare? Tropical islands and coasts with coral reefs also attract large numbers of tourists every year, dont they? What does the development of tourism help people? However, will coral and shellfis

8、h be destroyed by heavy boats? And what will the divers disturb?,Pollution,continental shelf,coastal cities,pollutants,Pollution,One of the biggest threats to oceans is pollution from industry. (pick out some verb phrases) Facts: Cause: Examples:,be reported to; be polluted by,(the industries) dumpi

9、nto; (rivers) wash into; (pollutants) settle on ; pile up,The North and Black Seas never recover,may never recover,Use verb phrases to fill in the table:,Share ocean resources fairly,Make laws and enforce regulations,Agree on the best way,Make people obey laws,Learn to understand the importance,Desi

10、gn a computer game: Aim: to see magnificent oceans，to save threatened oceans Problems: Tasks:,overfishing; pollution; develop / consume resources at will; destroy and disturb,set limits for sea food production; protect marine creatures educate sb. to respect,set protect share make educate,See Oceans Save Oceans,Presentation,In our computer game, the players