Book1Unit-3市公开课一等奖百校联赛优质课金奖名师赛课获奖课件.ppt

单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,本资料仅供参考，不能作为科学依据。谢谢。本资料仅供参考，不能作为科学依据。本资料仅供参考，不能作为科学依据。谢谢。本资料仅供参考，不能作为科学依据。,Unit 3,Paradise Lost,1/38,Main content,lead-in questions:,new words,reading comprehension,explanation of the text,exercise,2/38,Lead-in questions:,1.What do you know about rainforests?,2.Would you prefer to clear them away for,limitless pleasure and benefits?Why or,why not?,3/38,NEW WORDS,absorb take in 吸收,atmosphere the envelop of gases,surrounding the earth 空气，大气,cause 原因:目标,community 群落;小区,contain include,comprise 包含,description a spoken or written representation,描述,destruction 毁灭,economic of or relating to economics经济,establish set up 形成,确立,extraordinarily unusually 格外,basin 盆地;脸盆,4/38,fragile easily damaged or broken 易受伤害,;易碎,giant of extraordinary size 巨大,greenhouse 温室,growth 生长物,harvest reap or gather in crops 收获,impression 印象,navigator 领航员,paradise heaven,a place of complete,happiness乐园,process 过程,profit 利润,收益,purchase acquire by payment;buy 购置,5/38,remain continue to be;stay in the same,state 依然是;保持不变,rainforest 雨林,renewable 可再生,resource 资源,secondary coming after something that is,first or primary 次生,solution 处理(方法),species (物)种,stream 溪流,一股,一串;,surface 表面;地面,sustainable that may continue 可连续,trap 聚集,vary become different 不一样,改变,6/38,PHRASES&EXPRESSIONS,carbon dioxide 二氧化碳,die out 消失,speed up 加速,wash away 冲掉,冲走,worse still 更糟糕是,come down 下降,降低,no more than 不超出;仅有,secondary growth 再生林,次生林,way out 出路,7/38,Reading comprehension,Read the text quickly and then answer the following questions:,How did Columbus think of the rainforest?,What does the sentence“It remains hard to beat.”mean?,What do you know about London forty-five million years ago according to this paragraph.,What do you know about the rainforests in the world today?,What is“the secondary growth”?why is it called“the secondary growth”?,How does the modern world speed up the process of destruction?,Who is to blame for the destruction?,What can be done if we want to control the build-up of temperature?,8/38,How did Columbus think of the rainforest?,2 What does the sentence“It remains hard to beat.”mean?,3.What do you know about London forty-five million years ago according to this paragraph.,He thought it was most beautiful and quite different from,that in Europe,with flowers and fruits,and little birds,singing sweetly.,It means that no one else has ever given a better description,of the rainforest than Columbus.,It was covered with rainforests forty-five million years ago.,9/38,4.What do you know about the rainforests in the world today?,What is“the secondary growth”?why is it called“the secondary growth”?,How does the modern world speed up the process of destruction?,The rainforests cover no more than seven percent of,the earths surface today.,Modern technology doubtlessly increases efficiency,when people try to cut down trees.,“The secondary growth”refers to the new growth after,the original growth has been destroyed.,10/38,Who is to blame for the destruction?,What can be done if we want to control the build-up of temperature,It is the human beings that are to blame for such destruction.,We must protect the rainforests as well as the trees.,And at the same time we should do our best to bring,back the rainforests.,11/38,Rainforests are one of the most valuable natural gifts in the world,but now they are,dying out,.What has has happened?,12/38,Paradise lost?,Christopher Columbus said that he had never seen anything so beautiful,trees,“,beautiful and green,different,from ours,with flowers and fruits and little birds which sing very sweetly.”,13/38,The great navigators impression is the first known written,description,of a rainforest.It remains hard to beat.Rainforests are extraordinarily beautiful,but the beauty is fragile.,Forty-five million years ago rainforests covered the city of London,and rainforests were then over 30 million years old.That makes them the oldest communities of,living,things on the planet,.,14/38,Today the world rainforests cover,no more than,seven per cent of its surface even though they still contain more than 50 percent of the earths living species.The greatest and most famous of all remaining rainforests is found in Brazil,whose Amazon Basin,with its thousands of small and large streams,is almost totally covered by trees.The rest of the worldrainforests can only be found in West Africa,South-East Asia,and the pacific islands.,15/38,When the rainforests are cleared,they take a long time to come back.A few rapidly growing species quickly become,established,but this secondary growth,as it is called,is far less rich and varied.,16/38,Who is really to blame?It is the modern world that has,speeded up,the process of destruction.Once,it took a team of men a whole day to cut down a giant tree.Now,a single man can do it in ten minutes.Since 1945 half of the worlds rainforests have come down.,17/38,It is people themselves who are the biggest,cause,of destruction.The wealthy own the best land,and the poor of the world are forced to find land where they can find it,and it is there,under the trees.So the trees are removed.,18/38,When trees disappear from the land,the water sources suddenly disappear.The land itself,washes away,either becoming very poor or complete desert.Worse still,the climate is likely to change as the trees are no longer there to absorb the carbon dioxide in the atmosphere.The gas rises and traps the suns heat in much the same way as the glass of a greenhouse,leading to a slow but steady build-up of temperature.,19/38,What is the,way out,then?Both the problem and the solution seem to be economic.Governments still need money to pay their families,and companies still need to,make profits,.On the other hand,by purchasing renewable rainforest products,and demanding sustainable harvesting of rainforest resources,we all can be part of the solution and it is human beings that will be saved.,20/38,失乐园,热带雨林是大自然赐予我们最宝贵礼品之一，但现在它们正在逐步消失。这到底是怎麽回事呢？。,克里斯托弗。哥伦布曾说他从未看见过比热带雨林更漂亮地方，那里树木“青翠欲滴，不一样于我们树木，开满鲜花，挂满果实。小鸟在树上婉转地歌唱。”,这位伟大航海家对热带雨林印象是已知最早文字描述。后人记载总显得逊色。热带雨林异乎寻常漂亮，然而这份漂亮却是脆弱。,4500万年前，热带雨林覆盖着整个伦敦城面积，那时他们就有3千万年历史了。所以，热带雨林成为这个星球上最古老群居生物。,21/38,当前世界各地热带雨林覆盖面积仅为地球表面百分之七，而其拥有地球上活着生物物种则超出百分之五十。在全部热带雨林中，最壮观、最著名是在巴西发觉热带雨林。分布着成千上万条大小溪流亚马逊盆地，几乎完全被树林所覆盖。其余热带雨林主要分布在西非、东南亚和太平洋诸岛。,砍伐一空热带雨林需要很长时间才能重新长成。少数生长较快物种会很快长起来，然而这种次生林，正如它名字一样，其物种要贫乏多。,实际上应该归咎于谁呢？正是当代世界加紧了这种毁坏进程。过去砍倒一棵大树需要一群人花一整天时间。而现在只需要一个人在十分钟内就能完成。自1945年以来，世界上热带雨林已降低二分之一。,22/38,恰恰是人类本身成了破坏热带雨林罪魁祸首。富人占有了最好土地，世界上穷人被迫去寻找他们所能找到土地即树下土地。于是，树木被砍掉了。,树木从大地消失之后，水源也突然消失了。泥土本身被水冲走，土地要麽变非常贫瘠，要麽完全成了沙漠。更糟糕是，这些地方因为没有树木吸收大气层中二氧化碳，气候可能随之发生改变。二氧化碳在大气层中集聚起来，像温室玻璃一样吸收太阳热量，造成气温迟缓而稳定地上升。,那麽，出路何在呢？问题存在与处理似乎都和经济相关。政府依然需要钱来还债，移民依然需要钱来养家糊口，而企业也依然需要赢利。另外，假如我们购置可再生雨林产品，坚持雨林资源可连续利用，我们就已经部分地处理了问题，而人类本身也得到了拯救。,23/38,vocabulary snapshot,absorb contain economic establish harvest impression no more than process speed up sustainable vary worse still,24/38,absorb,The walls of the house absorb heat during the day.,I was absorbed in the book and didnt hear what they were talking about.,Establish,The company was establish by an overseas Chinese in 1991.,His second film,Taxi Driver,established his fame as an actor.,Harvest,Many students helped the farmers with the harvest.,The well-grown crops promise a good harvest.,As autumn comes,farmers are busy harvesting their crops.,(吸收),(使,全神贯注),(建立,设置,创建),(确立),(收割,收获),(收成,收获量),(收割,收获),25/38,Process,The firm is now in the process of moving its machines,to a new factory.,They have developed a new process of painting.,This job can be done more easily through another,process flow.,This factory specializes in processing with imported,materials.,Vary,She varies her dress as fashion changes.,We should vary our diet to keep fit.,Her health varies from good to rather weak.,(过程,进程),(工序,制作法),(工艺),(加工,处理),(改变;使,改变),(使多样化),(改变;有不一样),26/38,.fill in the blanks with words or phrases from the vocabulary snapshot.change the forms if necessary.,I made a bad,on the teacher by being late for class on the first,day.,Joan has,10 dollars on her,so she cant afford to buy a mobile phone.,This book,dozens of maps,including three of Great Britain.,Her latest film has already,her reputation as a director.,Salary scales,between cities.,There was a total agreement to start the peace,as soon as possible.,impression,no more than,contains,established,vary,process,27/38,7.the local government has come to realize the importance of,development.,That factory has installed those new machines,which,its production by 50%.,9.Tom was late for class.And,he forgot to bring his textbook with him.,10.Certain chemicals are easily,into the body,while others are not.,sustainable,speed up,wore still,absorbed,28/38,.complete the sentences with the proper forms of the words given in parentheses.,Can you(description),yesterdays car accident in detail?,The big fire(destruction),most of the buildings in the factory.,I was impressed by his(absorb),in thought,so I just sat there waiting.,With office0,you can(process),these data in a much shorter time.,5.Christina wants to wear her long hair,so she just lets it,.(growth),describe,destroyed,absorption,process,grow,29/38,6.,For years Japans(economic),g,rew at a,rate below 1 percent.,7.What(impression),me most is their love,for life and for family.,There are some plastic(contain),in which,fish are stored and sold.,9.You can surely(renewable),this book if,you phone in advance.,Everyone arrived late at the party,for a(vary),of reasons.,economy,impressed,containers,renew,variety,30/38,.Rearrange the words into sentences.,in Brazil,rainforest,the greatest,is found,most famous,and,come back,when,take a long time,they,the trees,are cleared,3.disappear from the land,disappear suddenly,trees,the water sources,when,The greatest and most famous rainforest is found in Brazil.,When the trees are cleared,they take a long time to come back.,When the trees disappear from the land,the water sources,disappear suddenly.,31/38,4.makes,on the planet,the oldest communities,that,them,of living things,5.the great navigators,is,of a rainforest,the first known impression,written description.,That makes them the oldest communities of living things,on the planet.,The great navigators impression is the first known,written description of a rainforest.,32/38,.Translate the Chinese into English.,In China,it is unlawful,(未经允许可砍树木）,These years,the rate of interest always,（在4%和6%之间浮动）,3.The director wants us,（加紧生产这种新汽车）,4.The number of rooms in their hotel,（和我们酒店房间数量一样多）,5.Jim was ill those days.And,（更糟糕是，他又失业了）,to cut down the trees,without permission,Varies between 4%,and 6%,to speed up the production,of the new brand car,Is the same,as ours,worse still,he was,out of a job,33/38,Make sentences according to the models of sentence structure.,Model 1:,the accident,the director is responsible for,2.Jack,helps the old man to push his chart,It is the director who is responsible for the accident.,It is Jack who helps the old man to push his chart.,34/38,Model 2:,1.the boy,three hours,swim across the river,2.the doctors,several hours,operate on this,patient,It took the boy three hours to swim across the river.,It took the doctors several hours to operate on this,patient.,35/38,Model 3,1.he devoted all his time to writing fairy tales,single all his life,2.if you dont eat,you will have to,hungry,He devoted all his time to writing fairy tales,so he remained single all his life.,If you dont eat,you will have to remain hungry,36/38,Model 4:,we mentioned just now,the problem is much more serious than you thought,2.everybody knows,learning a foreign language takes much time,As we mentioned just now,the problem is,much more serious than you thought,As,everybody knows,learning a foreign,language takes much time,37/38,Bye-bye!,38/38,