unit 13 Section A 3a-3b.ppt

宁县早胜初级中学 王若舟 Section A 23a-3bThe earth is badly polluted.What should we do to save the earth?Lets take action(采取行动采取行动)Turn off the lights when you leave a room.Recycle books and paper.Take buses instead of driving cars.Dont use paper napkins.You can help reduce pollution by putting that soda can in a different bin.Leave your car at home.Take a bus or ride your bike to work.Turn off the lights when you leave a room.There are some animals are endangered.We should do something to protect the animals and the environment!The zoos provide homes for many endangered animals.1.What do you know about shark(鲨鱼鲨鱼)?2.Do you think sharks can be endangered?Why?3.What do you think might cause a fall in the number of sharks?Where shark fin soup is popularNumber of sharks caughtand traded every yearHow much the numbers of some kinds of sharks have fallen in the last 20 to 30yearsTwo environmental groups which are against“finning”southern China70 millionover 90 percent WildAid and the WWF3aRead the passage about sharks and complete the fact sheet below.Retell the passage according to the words below.shark fin soup in southern China each time cut off no longer not onlybut also at the top drop be endangered the strongest around 70 million fallen by over 90 percent WildAid and the WWF develop laws scientific studies 3bRead the passage again and fill in the blanks with the words in the box.so although if but when1.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 oceans ecosystem will be in danger.whenso3.Many think that sharks are too strong to be endangered,_ they are wrong.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 something to stop the sale of shark fins.butAlthoughifadj.科学上的，科学的科学上的，科学的Write 5 measures to protect the environment.