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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,*,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,*,Unit 4 Exploring plants,教材课文读写,一、摘要导写,Read the text again and answer the following questions.,When did the plant exploration begin on a large scale,2. Who played an important role in plant exploration,1. It was not until the eighteenth and nineteenth centuries that the plant exploration began on a large scale.,2. Some missionaries and plant collectors.,3. What was the result of plant exploration,4. What was invented in order to transport the plants safely,3. Many exotic plants are introduced into different countries.,4. The Wardian case.,Please write a summary according to the above questions, using about 30 words.,Summary :The plant exploration began on a large scale between the eighteenth and nineteenth centuries. Some missionaries and plant collectors introduced many exotic plants into different countries with the help of the Wardian case.,二、任务写作,After you have read the text, please surf on the internet and write a brief introduction of Rafflesia arnoldii.,Rafflesia arnoldii is the worlds largest single flower. It grows largely in Southeast Asia ， on the Malay Peninsula， Borneo， Sumatra， Kalimantan， and the Philippines. These flowers have no leaves and hardly any stem， just a huge speckled fivepetaled flower with a diameter up to one metre， and weighing up to 10kg.,Even the smallest one has 20cm diameter flowers. The flowers smell like rotting meat， hence its local names are translated to “corpse floweror “meat flower. It is parasitic on a vine， spreading its roots inside the vine.,语言知识讲练,1. conflict n.冲突，争论；战斗(争vi.冲突，抵触,运用：完成以下句子。,(1)如果这样的话，你的观点一定会和他的冲突。,If so, your points of view are bound to_,_.,conflict with his,(2)你的陈述同其余证据有矛盾。,Your statement is_ the rest of the evidence.,in conflict with,2. on a large scale 大规模地,运用：完成以下句子。,(1)电子工业在大规模地开展着。,The electronic industry is _,_.,(2)科学家们正试图大规模地直接利用太阳能。,Scientists are trying to_ solar Energy_ .,on a large scale,developing on a,large scale,make direct use of,3. appeal to v. 对产生吸引力,运用：完成以下句子。,(1)这些画对你产生了吸引力吗,Do these paintings _,(2)相信我们这种新产品将会引起你方市场的兴趣。,We believe that this new product of ours _,_.,will,appeal to your market,appeal to you,基础知识检测,一、词汇拓展,1. attach v.把固定；重视,(1)_adj.依恋的；依附的,(2)_n.依恋；附件,attachment,attached,2. grow vi.生长；成长,(1)_n.种植者；饲养者,(2)_adj.生长的；成长中的,(3)_adj.长成的，成熟的,(4)_n.成长；生长；种植,grower,growing,grown,growth,3. fail vi.失败，不成功,(1)_n.失败者；失败的事,(2)_adj.已失败的,(3)_ adj.失败的，衰退中的,failing,failure,failed,4. develop v. 开展；开发；发育,(1) _n.开展；发育,(2) _adj.兴旺的,(3) _ adj.开展中的,developing,development,developed,5. excite vt.使兴奋,(1)_adj.兴奋的,(2)_adj.令人振奋的;使人冲动的,(3)_n.兴奋，冲动,excitement,excited,exciting,6. discover vt.发现,(1) _n.发现者,(2) _n.发现,discovery,discoverer,二、灵活运用,1.China is a _country in Asia. (develop),2.Lack of demand will slow down our economic_.(grow),3.New scientific_ are being made everyday. (discover),developing,growth,discoveries,4.This hospital is_ to our medical department. (attach),5.Do you know about the _,(evolve) of a seed into a plant,attached,evolution,6.Production in the factories stopped because of frequent power _. (fail),7.The boys were running in _ .(excite),excitement,failures,三、词组互译,1.追溯到年代；始于_,2.把送往别处；辞退；打发走,_,3.各种各样的 _,4.呼吁，对有吸引力 _,5.用完；耗尽；分发；发出；放出(光、热等),_,date back to,send away,a variety of,appeal to,give out,6.take (an) interest in sb./ sth.,_,7.be known as _,8.bring back _,9.result in _,10.large quantities of _,对某人/某物感兴趣,作为而知名;被称作;被认为,拿回来，使回忆起来，使恢复,导致,许多，大量的,四、阅读理解,本文介绍的是Edward Wilson所写的一本关于生物物种多样性的书，在书中，介绍了Edward Wilson对物种多样性的重要性的看法，并号召我们保护环境，保护物种多样性。,1. B。推断题。,本文都是围绕Edward Wilson书中的地球物种的多样性的相关内容展开的，依据第一段最后一句及第三段第一句Biodiversity， Wilson argues， is the key to settling many problems the earth faces today可知，他最关注地球的物种多样性，即B项正确。,2. A。细节题。,依据文章第三段中的A mere hundred species (物种) are the basis of our food supply， of which but twenty carry the load.可知，为我们提供食物的只有20种物种是最重要的。,3. D。细节题。,依据Wilson suggests changing this situation by looking into ten thousand species that could be made use of， which will be a way to reduce the clearing of the natural homes of plants and animals to enlarge farming areas.这句话可知，Edward Wilson在书中给我们建议的解决保持物种多样性的方法是开发食物的种类。,4. C。推断题。,依据文章最后一段中的At the end of the book可知，本文介绍一本书，故C项正确。,5. D。推断题。,Henry David Thoreau是早期保护环境的倡导者，所以D项正确。,
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