unit 13 section A(3a-3b).ppt

Section APeriod Twosharkfincruelharmfulbe harmful toat the top ofchainthe food chainecosystemindustrylawscientificn.鲨鱼鲨鱼n.（鱼）鳍（鱼）鳍adj.残酷的；残忍的残酷的；残忍的adj.有害的有害的对对.有害的有害的在在.顶部或顶端顶部或顶端n.链子；链条链子；链条食物链食物链n.生态系统生态系统n.工业；行业工业；行业n.法律；法规法律；法规adj.科学上的；科学的科学上的；科学的Words ReviewTo learn to use some words and expressionsTo understand the passage about endangered animals-sharks.Words:shark;fin;cruel;the food chain;ecosystem;industry;lawPhrases:no longer;be harmful to;at the top ofWhat are they?Where are they from?Shark finShark fin soupThey are from sharks.Do you still want to try the shark fin soup?No trading,no killing.Do you know how to get the shark fin?Before you readBefore you read1 1Look at the photo,the questions in 3a and the title of the story on page 99.Then answer the questions below.1.What can you see in the picture?2.What does the passage may talk about?1.A shark.2.It may talk about the sharks.Read the title,the first and last sentences in each paragraphs and match the main ideas.Talk about shark fin soup.Sharks are endangered now.Appeal to people against eating shark fins.Para.3 Para.1 Para.2WhileWhile you read you read2 2Read Paragraph 1 and judge the sentences.Sharks fin（鱼鳍）（鱼鳍）soup is famous and expensive all around the world.Youre killing a whole shark when you enjoy a bowl of shark fin soup.FTRead Paragraph 2 and fill in the chart.people enjoy _fishermen _,_,then _decreased quicklya bowl of shark fin soupcatch sharks cut their finsthrow them into the oceanThe numbers of some kind of sharksRead Paragraph 3 and judge the sentences.1.WildAid and the WWF are environmental protection groups2.in China.3.2.Two environmental groups appeal to establish laws to stop the sale of shark fins.4.3.Sharks fins are good for health.FTFaround the worldSo far,no scientific studies have shown that shark fins are good for health.Read the passage about sharks and complete the fact sheet below.(P99)3aWhere shark fin soup is popularNumber of sharks caught and traded every yearHow much the numbers of some kinds of sharks have fallen in the last 20 to 30 yearsTwo environmental groups against“finning”southern China70 millionover 90 percentWildAid&the WWF1.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.3.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.whensobutAlthoughifRead the passage again and fill in the blanks with the words in the box.(P99)3b3 3After you readAfter you readRetell the passage according to the words below.A whole shark has been killed each time you enjoy a bowl of shark fin soup.When people catch sharks,they _ their fins and throw the shark back into the ocean.Without a fin,a shark can _ swim and slowly dies.If sharks numbers drop too low,it will _ all ocean life._ some kinds of sharks have fallen _ over 90 percent in the last 20 to 30 years.cut offno longerbring danger toThe numbers ofbyWhat can we do to save the sharks?Work with your partners and make a poster about shark protection.1.A shark can no longer swim and slowly dies.鲨鱼鲨鱼不能再游泳然后慢慢死掉。不能再游泳然后慢慢死掉。no longer&no more“不再不再”no longer和和notany longer 侧侧重重时间时间 notany more 侧侧重程度和数量重程度和数量Im no longer a student.我不再是个学生了。我不再是个学生了。You can drink no more.=You cant drink any more.你你不不能能再再喝喝了了。(喝喝酒酒的的量量到到了了一一定定程程度度，不不能再能再继续继续下去了。下去了。)2.This method is not only cruel,but also harmful to the environment.这这种种方方法法不不但残忍而且但残忍而且对环对环境有害。境有害。not onlybut also表表示示并并列列，着着重重强强调调后后者者，“不不仅仅而且而且”（also 可省略）可省略）若若连连接接两两个个成成分分作作主主语语，其其谓谓语语通通常常与与靠近的主靠近的主语语保持一致保持一致not only放放在在句句首首，后后接接句句子子时时要要用用倒倒装装结结构构She not only plays well,but also writes music.她不她不仅仅很会演奏，而且很会演奏，而且还还会作曲。会作曲。Not only men but also women were chosen.不不仅仅仅仅是男的，女的也有被是男的，女的也有被选选中的。中的。Not only had the poor man been fined,but also he had been sent to prison.这这个个可可怜怜的的人人不不仅仅被被罚罚款款，而而且且还还被被送送进进了了监狱监狱。be harmful to 对对 有害有害Smoking is harmful to the health.吸烟有损健康。吸烟有损健康。Playing computer games much is harmful to students.电脑游戏玩太多对学生有害。电脑游戏玩太多对学生有害。3.Sharks are at the top of the food chain in the oceans ecosystem.鲨鱼位于海洋生物系统食物链的顶部。鲨鱼位于海洋生物系统食物链的顶部。at the top of 在在.最最高高地地位位;用用最最高高最最大大的的(速度速度,声音等声音等)I looked at the top of his head,his hair shiny and parted smoothly.我看他的头顶我看他的头顶,头发光亮头发光亮,分得平滑。分得平滑。He shouted at the top of his voice in order that he might be heard.他尽力大声叫喊他尽力大声叫喊,以便别人能听见。以便别人能听见。4.If their numbers drop too low,it will bring danger to all ocean life.此此句句复复数数形形式式的的number表表达达全全海海洋洋中中鲨鲨鱼鱼的的总总量量。当当表表示示数数值值的的高高或或低低时时，number要用要用high或或low修饰修饰 常与常与number搭配的动词：搭配的动词：grow,fall In that country,the number of children going to school is higher in cities than in towns and village.在在那那个个国国家家，城城市市儿儿童童入入学学人人数数比比乡乡镇镇及及农农村要高。村要高。Now 2 mins to test your spelling.1.English-Chinese shark,fin,chain,the food chain,ecosystem,industry,law2.Chinese-English残酷的，对残酷的，对.有害的，在有害的，在.顶顶部或顶部或顶端，科学上的端，科学上的When finishing,exchange your papers to see who does the best.注注:另附另附word文档。文档。点击此处链接点击此处链接Translate and write them down.1.甚至是河底都满是垃圾。甚至是河底都满是垃圾。2.这个方法不仅残酷还对环境有害。这个方法不仅残酷还对环境有害。3.鲨鱼处于海洋食物链的顶部。鲨鱼处于海洋食物链的顶部。Even the bottom of the river was full of rubbish.This is not only cruel,but also harmful to the environment.Sharks are at the top of the food chain in the oceans ecosystem.Check if you know these phrases.1.1.把垃圾扔到河里把垃圾扔到河里2.2.在在中起作用中起作用3.3.在中国南部在中国南部 4.4.对对有害有害5.5.在在顶部顶部 6.6.海洋生态系统海洋生态系统throw the rubbish into the riverplay a part inin southern Chinabe harmful toat the top ofthe oceans ecosystem1.Review the new words and expressions youve learned today.2.Read the articles in Learning English.3.Write 5 measures to protect the environment.4.Preview the new words and expressions.5.Preview the Grammar Focus on page 4.