Unit5 Developing ideas The secret language of plants（ppt课件） -2022新外研版（2019）《高中英语》选择性必修第一册.pptx

1、The The Secret Language Secret Language of Plantsof PlantspattackpbreathepeatpsleeppmovepspeakpstealpthinkLook at the pictures and tick what plants can do.Look at the pictures and tick what plants can do.Now talk about what else you think the plants can do and give Now talk about what else you think

2、 the plants can do and give examples.examples.Warm-upLets watch a short video about a famous game.Can plants really talkCan plants really talk?Can you believe plants“talk”to each other by their own ways?1.myths and legends 2.reveal 3.after all4.chemical 5.say a bean plant6.insect 7.detect8.wasp 9.pe

3、sticideTalking plants have long been a thing of myths Talking plants have long been a thing of myths and legends.and legends.para1para1para2para2para3para3para4para4para5para5para6para6It appears that plants can communicate after all.It appears that plants can communicate after all.It has been known

4、 for some time that plants useIt has been known for some time that plants use chemicals to communicate with each other.chemicals to communicate with each other.More surprisingly,plants also use sound tocommunicate.More surprisingly,plants also use sound tocommunicate.Most surprisingly of all,plants

5、have an amazing Most surprisingly of all,plants have an amazing system of communication that link nearly every system of communication that link nearly every plant in a forest.plant in a forest.Maybe one day we will know enough about plant Maybe one day we will know enough about plant communication

6、to be able to talk with them communication to be able to talk with them ourselves.ourselves.Match Match the topic sentence the topic sentence toto each each paragraph paragraph Fast Fast readingreadingWhat is the passage most likely to be taken from?A.A scientific magazine B.A guide book C.A fiction

7、 story D.A news reportWhat is the writers purpose in writing the passage?A.To introduce the ways plants communicate with each other B.To compare the differences between plants and humans C.To predict where technology will take plants D.To call on humans to protect the plantsRead and ThinkHow does th

8、e writer develop the How does the writer develop the passage?passage?IntroductionIntroductionConclusionConclusion the“wood wide web”the“wood wide web”sound sound chemicals chemicals Plants can communicate.Plants can communicate.Talk with Talk with municate vt&vi 传达传达，表达表达 communicate to 传送给传送给 commu

9、nicate with 与与交流Language points:Important words1)小组成员必须通过角色扮演互相交流。2)他们成功地把知识传授给他人。Group members have to communicate with each other through role-play.They successfully communicate their knowledge to others.2.detect/detectivedetect 发觉；察觉；探测发觉；察觉；探测 detective 侦探Language points:Important words1）一位知名侦探已

10、发现了他的秘密。2）他发现他的小弟弟正在阳台上抽烟。A well-known detective has detected his secret.He detected his little brother smoking in the balcony.1.give advice _ 2.be said to _ municate with _4.get attacked _ 5.release from _ 6.drive away _给出建议给出建议据说据说与与交流交流遭受攻击遭受攻击从从释放释放Language points:Important lexical chunks把把赶走赶走

11、7.after all _ 8.more surprisingly _ 9.be similar to _ 10.link to _毕竟毕竟更令人吃惊的是更令人吃惊的是和和类似类似把把和和连接起来连接起来Language points:Important lexical chunkschemicalsa bean plantinsectsanother bean plantdifferent chemicalswaspattackreleasedetectreleasekilldrive awayattractkillAccording to para 6,what is the writer

12、s attitude towards the scientific research on the secret language of plants?A.Positive B.Negative C.Neutral D.Indifferent Scientists are learning more every day about the secret way in which plants talk to each other.Who knows?Maybe one day we will know enough about plant communication to be able to

13、“talk”with them ourselves.1.What figure of speech is being used when the plants are described as calling for help?What is its function?Personification.It can make descriptions more vivid.Paraphrase:It is said that Alexander the Great and Marco Polo had gone to see a tree like that in India.1.Alexand

14、er the Great and Marco Polo were said to have visited such a tree in India.Language points:Important sentencessb be said to do=It is said that sb 据说某人做了某事据据说说1)据说他是一位有名的作家。2）据说那辆车是他偷来的。It is said that he is a famous writer.=He is said to be a famous writer.Language points:Important sentencesIt is sa

15、id that he stole that car.=He is said to have stolen that car.2.With us long believing that talking plants are fantasy,new research has revealed something amazing:it appears that plants can communicate after all.with+名词名词 /代词代词 +非谓语动词非谓语动词 Language points:Important sentenceswith+名词名词 /代词代词 +非谓语动词非谓语

16、动词 1）由于Tim的引导，我们毫不费力地找到了目的地。2）有好多工作有待完成，他很焦虑。3）问题解决了，他如释重负。With Tim guiding us,we had no difficulty in finding the destination.With a lot of work to do,he felt anxious.With the problem settled,he felt relieved.3.This happens when a plant,say a bean plant,gets attacked by insects.Language points:Impo

17、rtant sentences1）假定你的计划失败了，那么我们怎么办呢?2)我们假设你是对的。Say your plan fails,then what do we do?认为，假定，比如说Lets say that you are right.4.Most surprisingly of all,plants have an amazing system of communication that can link nearly every plant in a forest.eg The new bridge will link the island to the mainland.eg

18、the close link between teacher and student Theres a direct link between diet and heart disease.link n.:a connection between two people,things or ideas 联系，关联；联系，关联；关系关系link v.:1)to make a connection between two or more things or people 把把联系联系起来起来 2)连接连接(两个或两个以上的物、人或地点两个或两个以上的物、人或地点)翻译下面句子。翻译下面句子。1)在古

19、代，古老的丝绸之路把中国和西方连接了起来。在古代，古老的丝绸之路把中国和西方连接了起来。2)饮食与心脏病之间有直接的联系。饮食与心脏病之间有直接的联系。The old Silk Road linked China with the West in ancient times.Theres a direct link between diet and heart disease.Think and share 1.What do you think are the benefits of studying plant communication?2.What discoveries are de

20、scribed in the two reading passages in this unit and what do their meanings have in common1.Read the passage at least three times.2.Try to recite the passage.3.翻译句子：翻译句子：1)饥渴的土壤在雨中畅饮。饥渴的土壤在雨中畅饮。2)花儿在微风中点头。花儿在微风中点头。1.Thirsty soil drank in the rain.2.The flowers nodded in the breeze.Smart expressions

21、微量的 呼救(名词短语)赶走 植物报警系统 发出咔哒的声音 最令人惊讶得 在某些方面 通过连接起来 把不同植物的根联结起来 植物之间相互交谈的秘密方式tiny amounts oftiny amounts ofa call for helpa call for helpdrive awaydrive awaythe plant warning systemthe plant warning systemmake clicking noisesmake clicking noisesmost surprisingly of allmost surprisingly of allin some w

22、aysin some waysby linked by by linked by link the roots of link the roots of different plants different plants toto each each otherotherthe secret way the secret way in which in which plants talk to each otherplants talk to each otherthat/that/不填不填Thank you!Thank you!WritinWriting g1.How were the da

23、ffodil bulbs planted?They were planted side by side in soil with the pointed ends facing up.2.In what environment did the leaves grow?The leaves grew in a sunny,but cool place.3.What do the flowers look like?The flowers are yellow and white,and shaped like trumpets.Look at the pictures and talk abou

24、t how the sunflower grows.Look at the pictures and talk about how the sunflower grows.Write your observational journal about the Write your observational journal about the sunflower.sunflower.Make improvements to each others observational journals and share them with the class.An observational journ

25、al about the sunflowerAn observational journal about the sunflower1 JuneGermination（使发芽）Covered with 1/2 cm of moist soil,the sunflower seed takes five to 12 days to come up after being planted.Water has been added regularly and the hard seed coat softens in the damp soil to allow the first root to

26、pierce downwards and the first leaves to push to the soil surface.6 JulyGrowthThe root continues to grow downward.The single stem grows hollow and smooth,revealing large spade-shaped leaves from the growing tip.Gradually,the plants growing tip reveals the first hints of development of the flower bud

27、.The plant stem becomes more woody.26 JulyFloweringAbout three weeks after the flower bud first becomes visible at the tip of the sunflower stem,it enlarges and begins to reveal a flattened disk.Over the course of one week,the yellow ray florets,the disk florets bloom across the core of the sunflowe

28、r blossom.It is yellow,looking beautiful.1.Talking plants have long been a thing of myths and legends.Many cultures have stories of talkingtrees that give advice as well as warnings to people.Alexander the Great and Marco Polo were saidto have visited such a tree in India.And in somemodern stories,s

29、uch as the film Avatar,trees cancommunicate with animals and people.会说话的植物一直是神话传说中的一大元素。在许多种文化中流传下来的故事里，会说话的树给予人们忠告和警示。据说亚历山大大帝和马可波罗曾在印度见过一棵会说话的树。在一些现代故事一例如电影阿凡达一中，树可以与人类和动物沟通交流。课文 2.With us long believing that talking plants arefantasy,new research has revealed somethingamazing:it appears that plan

30、ts can communicateafter all.我们一直认为会说话的植物只存在于幻想之中，但新研究有了令人惊奇的发现:植物间似乎确实可以交流。3.It has been known for some time that plantsuse chemicals to communicate with each other.This happens when a plant,say a bean plant,getsattacked by insects.The plant relcases tiny amountsof chemicals from the leaves that are

31、 being eaten.This is like a warning,or a call for help:Tm beingattacked!When another bean plant detects thechemicals from its injured neighbour,it starts torelease its own,different chemic-als.Some of thesechemicals drive insects away.Others attract insects-the wasps!The wasps kill the insects that

32、are eatingthe bean plants.Scientists hope to learn more aboutthis plant warning system,so that we can use it togrow crops without pesticides.人们早就知道植物可以利用化学物质进行交流。当一株植物比如豆科植物被昆虫袭击时，就会发生这种情况。正遭受啃食的叶子会释放出微量的化学物质,这像是警示，抑或求救:“我被攻击了!”当另一株豆类植物察觉到附近受伤同伴释放的化学物质时，它自身便开始释放不同的化学物质，其中一些能驱赶昆虫,而另一些则会吸引另一种昆虫一黄蜂!黄蜂会

33、杀死那些啃食豆类植物的昆虫。科学家希望能进一步了解这种植物警报系统,从而将其应用于不用使用农药的农作物的种植。4.More surprisingly,plants also use sound to communicate.People cant hear these souncls,butplants are making them.Some plants make noiseswith their roots.Corn and chilli plants do this.They also listen to the noises from other plants.A chilli pl

34、ant can tell if a neighbouring plant ishelpful,or unfriendly.Some trees make clickingnoises when there is not enough water,indicatingdrought is arriving.更不可思议的是,植物也能用声音交流。虽然人类听不到,但植物确实正在发出声音。有些植物通过根部发出声响，比如玉米和辣椒。它们还能“听见”其他植物发出的声响。由此，辣椒可以知道自己附近的植物是敌是友。还有些树木在水分不足时会发出咔嗒声，以示干旱就要来了。5.Most surprisingly of

35、 all,plants have an amazingsystem of communication that can link nearlyevery plant in a forest.Scientists call this systemthe wood wide web”.It is in some ways similarto the Interner we use.While the Internet is aworldwide network of computers linked by cables and satellites,the wood wide web is lin

36、ked underground by fungi.然而最令人惊奇的是,植物拥有一套神奇的信息交流系统,几乎可以连接起森林中所有的植物。科学家们称之为“植物万维网”。在某种程度上,它很像人类使用的互联网。互联网是通过电缆和卫星连接的全球计算机网络，而植物万维网则是在地下通过真菌连接而成的。This fungal network links the roots of different plants to each other.Using the wood wide web,plants can shareinformation and even food with each other.For

37、example,some pine trees can send foodto smaller pine trees to help them grow.Butjust like our own Internet,the wood wideweb has its own version of“cybercrime”.Plants can steal food from each other,orspread poisons to attack other plants.Perhaps one day scientists will learn how to create a“firewall”

38、to help prevent these attacks within the woodwide web.这个真菌网络将不同植物的根彼此连接,通过它，植物可以互相分享信息甚至是食物。比如,某些松树会通过真菌网络向松树幼苗输送养分,帮助它们生长。但是,像互联网一样,植物万维网也会发生“网络犯罪”。植物会偷取同伴的养分,或散播有毒物质攻击其他植物。也许未来某一天，科学家会研究出建造“防火墙”的方法来阻止植物万维网中的这些攻击。6.Scientists are learning more every day aboutthe secret ways in which plants talk to each other.Who knows?Maybe one day we will know enough about plant comunication to be able to“talk”with themourselves.科学家们每天都在增进对植物间相互沟通的秘密方式的了解。谁知道呢?说不定哪一天,我们就能足够了解植物沟通的知识,从而亲自和植物“聊天”了。