高中英语课件thewaterplanetwarmingupandlistening.ppt

The water planet,Unit 13,22nd, March,Experiments,1,2,3,4,1,Experiment 1 shows how air pressure causes a piece of thick paper to cling(粘着） to an upturned glass of water.,1,Experiment 2 illustrates（说明） how substances（物质） with different density（密度) are when placed in the same container.,2,Experiment 3 is an example of how water dissolves（溶解） substances and objects.,3,Experiment 4 illustrates some of the differences between salt water and fresh water.,4,Speaking,Water is being used for ,Electricity,Agriculture,Home use,Industry,Transport,Entertainment,A. What do you think about the way water is being used for agriculture? B. Its a good way to use water. We need food,of course, and nothing can grow unless there is enough water. A. I agree. But Ive read that a lot of water is wasted when we water fields. It would be better to use modern technology to make sure that we dont waste water.,sample dialogue,B.Thats true. We should be careful with our water.Using water for faming is good because many people will benefit from it. A. Yes. If we learn to use the water in a good way,without wasting or polluting it, we can grow more food and use our land , too.,1.benefit vt.使受益，得益 The rain这所新医院将使整个社区受益。 will benefit the crops. 这场雨对庄稼会有好处的。 The new hospital will b这所新医院将使整个社区受益。 enefit the entire community.,He will benefit from the new way of doing business. 他将从这种新的经营方式中获益。 I benefited from my fathers advice. 我从父亲的建议中获益良多。,Benefit n.利益，益处 I got a lot of benefit from learning a foreign language. 我从学习外语中得到很多益处。 Did you get much benefit from the book? 你从那本书中受益很多吗？ of benefit to对有益处 That experience was of great benefit to me. 那次经历对我很有益处。 Moderate exercise will be of benefit to you. 适度运动对你有益。,for the benefit of为了的利益 She went there for the benefit of her health. 她为了健康而去了那里。 The city library is for the benefit of the public. 市立图书馆是供大众用的。 We did so for the benefit of society. 我们是为了社会而这么做的。,2.disadvantage n.不利，不利条件 His poor eyesight was a disadvantage to him. 视力不佳是他的弱点。 These early sailing ships had certain disadvantages. 这些早期的轮船有一定的缺点。 It is a disadvantage not to be able to drive a car. 不能开车是不利条件。,at a disadvantage处于不利地位 I feel rather at a disadvantage talking to her,because she is so clever. 同她交谈我感到很不利，因为她很聪明。 His inability to speak English put him at a disadvantage at the international conference. 他因为不会说英文，所以在国际会议上处于不利的地位。,to ones disadvantage对某人不利 Her height will be very much to her disadvantage if she wants to be a dancer. 如果她想当舞蹈演员，那么她的身高对她很不利。,3.entertainment n.娱乐；招待 the entertainment business娱乐业 A cinema is a place of entertainment. 影院是娱乐场所。 The city offers all kinds of entertainment for the young and the old. 这个城市为年轻人和老年人提供各种娱乐活动。 Going to the zoo is exciting entertainment for the whole family. 去动物园是令全家人兴奋的活动。,The hotel is famous for its good entertainment. 这家宾馆因对客人招待周到而闻名。 She was busy preparing for the entertainment of the guests. 她忙着准备接待客人。,Thank you!,Why is it important to us?,Listening,Part 1:,Who tells the story in the poem? 2. What does one of the sailors do? 3. What do you think will happen next? 4. Why are the other sailors frightened?,The story is told by a mysterious guest at a wedding.,He shoots a bird that flies above the ship.,The wind dies down and sailors are hungry and thirty.,The other sailors are frightened and angry because the bird is thought to bring good luck to the ship.,Part1 Many great poets have written about the beauty and dangers of the seas and oceans. In the 18th century, the English poet Samuel Taylor Coleridge wrote a poem called “The Rime of the Ancient Mariner”.In the poem, a mysterious guest tells a strange story to the people at a wedding. He begins his story by describing how a ship sets out to sea. One day, one of the sailors, or mariners, shoots a bird that flies above the ship. When the other mariners see what he has done, they are frightened and angry. The bird he has killed is a bird that brings good luck to the ship. By killing the bird, the mariner has brought bad luck and death to the,sailors. Soon, things turn bad. The wind dies down and the sailors are hungry and thirsty. There is water all around them, but they cant drink it because it is too salty. “Water, water everywhere, nor any drop to drink.” The mariners are so thirsty, hungry, and frightened that they begin to imagine things: they think they see monsters walking on the water.,Part 2:,What happens to the sailors? 2. What happens to the mariner? Why? 3. Why is the person telling the story?,All the mariners die - except for the one who shot the bird.,The mariner who shot the bird survives. / Two gods decide that the mariner will live but must always tell his story,He has to tell his story to everyone he meets. ( The “mysterious guest” is the mariner.),Part 2 In the poem, two gods argue over what should happen to the ship and the mariners. Finally they decide that all must die - except the mariner who shot the bird. He must live through it all and will pay by having to tell the story to all the people he meets the rest of his life. On the ship, the frightened mariner watches as the other sailors fall dow dead on the ships deck. Left alone on the ship, drifting on the ocean, the mariner suffers from loneliness and fear.,Alone, alone, all, all alone, Alone on a wide wide sea! When the mariner is rescued at last, he must walk around and tell his story. This is what the guest tells the people at the wedding. His story told, the ancient mariner says farewell and asks them to learn from his sufferings.,workbook: listening,Fill in the information on the diagram:,a._ b._ m._,Air bottle,Belt,Metal weights,Divers usually go down to _. The air bottle usually contains enough air for _. 3. Divers carry weights round their body so that they wont _. 4. You must look out for _ when diving. 5. It is necessary to have diving lessons with a teacher because _ if you dont _ and _ the equipment properly.,about 20 meters,about 40 minutes,float to the surface,dangerous types of fish,diving can be dangerous,how to act how to use,Part 1 In order to go diving, you need some equipment. First, divers carry on their backs a metal bottle which is filled with air. Theres enough air to last about 40 minutes. Next, divers carry heavy metal weights in a belt around their body. Without these heavy weights they would float to the surface. You see, there is a lot of air in their air bottles, and this would bring them up to the surface if they didnt have any weights. Most divers dont go very deep. Mainly they dive to a depth of about 20 metres. Then they swim around as they slowly return to the surface.,Everyone who wants to dive must first have diving lessons with a teacher. There are a few dangers that you have to learn about. For one thing, you might have problems with your air bottle. A diver must know how the equipment works and be able to recognise possible problems. There are also dangerous types of fish that you must look out for. You must be familiar with the environment you will be diving in. before you go on a dive, make sure that you know what youre getting into. Diving may look easy, but if you dont have the necessary training, it can be both difficult and dangerous.,dive alone,hold your breath,the pressure difference,serious lung injuries,Know your limits,Diving deeper or longer than what you are used to can be dangerous,You need someone to help you if there is a problem,Part 2 Victoria is a diving instructor at the Water Sport Club. She teaches people the skills they need in order to enjoy safe diving. We asked her what she tells her students: “I love diving and I want others to try it, too. Diving isnt really a dangerous sport, but its important to understand that safety is very important. Most diving accidents happen to beginning divers. I tell people to know their limits. If you dont have enough experience, you mustnt dive deeper or longer than what you are used to.,There are two things a diver must always remember: never dive alone and dont hold your breath. If a diver holds hi