Unit 5 Developing ideas Reading（ppt课件）--2023新外研版（2019）《高中英语》选择性必修第一册.pptx

1、Unit 5Revealing nature-Developing ideas1.Students could learn some words and phrases.2.Students could undestand the main idea of this passage.3.Students could write some sentences by using several words of this passage.Learning Aims:What is your understanding of the title of this grammar？Share you i

2、deas with others植物语言的秘密 The Secret Language of Plantsspecial plantsattack move breathespeak eatsteal sleep think What is the main purpose of this passage?To put forward a introduction of this passage1 Talking plants have long been a thing of myths and legends.Many cultures have stories of talking tr

3、ees that give advice as well as warnings to people.Alexander the Great and Marco Polo were said to have visited such a tree in India.And in some modern stories,such as the film Avatar,trees can communicate with animals and people.Take notes quickly.重点词汇myths 神话;神话故事;虚构的东西;cultures 文化，文明;文化;give advi

4、ce 提出忠告as well as 以及，既又，除之外，此外warnings 警告，警示;Alexander the Great 亚历山大大帝;Marco Polo 马可波罗Avatar 阿凡达;化身communicate with 与沟通;2 With us long believing that talking plants are fantasy,new research has revealed something amazing:it appears that plants can communicate after all.重点词汇plants 植物;fantasy 幻想;想象;r

5、evealed 揭示;显示;amazing 太神了;communicate 交流;沟通after all 毕竟;终究Why do scientists do research on this plant warning system?To apply it into agriculture3 It has been known for some time that plants use chemicals to communicate with each other.This happens when a plant,say a bean plant,gets attacked by inse

6、cts.The plant releases tiny amounts of chemicals from the leaves that are being eaten.This is like a warning,or a call for help:“Im being attacked!”When another bean plant detects the chemicals from its injured neighbour,it starts to release its own,different chemicals.Some of these chemicals drive

7、insects away.Others attract insects the wasps!The wasps kill the insects that are eating the bean plants.Scientists hope to learn more about this plant warning system,so that we can use it to grow crops without pesticides.Take notes quickly.重点词汇has been 已经known for 以而闻名some time 早晚;一段时间communicate w

8、ith each other 相互call for help 呼救warning system 警报系统so that 因此;以便Some plants make noises with _?4.More surprisingly,plants also use sound to communicate.People cant hear these sounds,but plants are making them.Some plants make noises with their roots.Corn and chilli plants do this.They also“listen”t

9、o the noises from other plants.A chilli plant can tell if a neighbouring plant is helpful,or unfriendly.Some trees make clicking noises when there is not enough water,indicating drought is arriving.with their rootsTake notes quickly.重点词汇surprisingly 惊人地;令人惊讶地;出乎意料地make noises 制造噪音chilli 辣椒noises 声音;

10、响声;neighbouring 邻近的;附近的;毗邻的unfriendly 不友好的;冷漠的;indicate 表明;显示;drought 干旱;旱灾;久旱5.Most surprisingly of all,plants have an amazing system of communication that can link nearly every plant in a forest.Scientists call this system the“wood wide web”.It is in some ways similar to the Internet we use.While

11、the Internet is a worldwide network of computers linked by cables and satellites,the wood wide web is linked underground by fungi.This fungal network links the roots of different plants to each other.Using the wood wide web,plants can share information and even food with each other.For example,some

12、pine trees can send food to smaller pine trees to help them grow.But just like our own Internet,the wood wide web has its own version of“cybercrime”.Plants can steal food from each other,or spread poisons to attack other plants.Perhaps one day scientists will learn how to create a“firewall”to help p

13、revent these attacks within the wood wide web.Take notes quickly.重点词汇plant in 植物在in some ways 在某些方面;be similar to 类似worldwide network 世界性网络each other 彼此，互相For example 例如just like 就像，正如steal food 偷食物;偷嘴According to Para.6,what is the writers attitude towards the scientific research?Positive6 Scientis

14、ts are learning more every day about the secret ways in which plants talk to each other.Who knows?Maybe one day we will know enough about plant communication to be able to“talk”with them ourselves.Take notes quickly.重点词汇Scientists 科学家;every day 每天secret 秘密;talk to 和某人交谈;向谈;each other 彼此，互相 know的第三人称

15、单数Maybe 大概，one day 一天；一日The Secret Language of Plants Plants can communicate in ways humans cant notice.Using chemicalsSound“Wood WIde Web”Maybe humans will be able to“talk”with plants one day.Personification means giving human characteristics to something that is not human.By using human characteri

16、stics to describe an object,animal or even a place,personification can make descriptions more vivid.Learning to learn.What is the writers purpose in writing the passage?A.To introduce the ways plants communicate with each otherB.To compare the differences between plants and humansC.To predict where

17、technology will take plantsD.To call on humans to protect the plantsWhat is the article most likely to be excerpted from?A.A scientific magazine B.A guide bookC.A fiction story D.A news reportWhat does“wood wide web”mean?1.木质宽腹板2.3.What do you think are the benefits of studying plant communication?Try to think about othersQuestionTalk with others.1.2.3.Thank you!