1、选择性必修一 Unit 5 Developing ideas Reading 高二年级 英语Step 1:Analysis of the materialWhat:本文的语篇类型为说明文，具体介绍了自然界中不同植物之间的交流方法，从而使同学们通过了解神奇的自然来增长知识。Why:通过这一板块的学习，同学们能够加深对单元主题的理解和认识，进一步走进自然、探索自然、了解自然、欣赏自然，学会与自然和谐相处。How:通过读前、读中、读后的各项课堂设计引导同学们理解课文，掌握相关词汇，在把握文章结构的基础上明确主题，进一步了解自然，形成与自然和谐相处的积极的人生态度。Step 2:Leading-inL
2、ook at the pictures and talk about what plants can do.Now talk about what else you think the plants can do.It can catch insects.It can shut its leaves when touched.It can sow its own seeds.Plants can breathe.Plants can speak in many ways.Plants can move with the help of other things,such as wind and
3、 animals.What else can plants do?Step 3:Knowledge learningRead the passage quickly and find out the ways in which plants communicate.They may communicate with each other by using chemicals,sound and“wood wide web”.Read the passage carefully and complete the diagram.Organize information from the pass
4、age and complete the municate with each otherfrom the leavesrelease its own,different chemicalstell if a neighboring plant is helpful,or unfriendlywith their rootsclicking noises when there is not enough water,indicating drought is arrivingthe roots of different plants to each othershare information
5、 and even foodsteal food from each other,or spread poisonsLanguage points1.Alexander the Great and Marco Polo were said to have visited such a tree in India.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。sth./sb.be said to do=It is/was said that据说.e.g.He is said to be the richest man in the world.=It is said that he i
6、s the richest man in the world.据说他是世界上最富有的人。to have done:不定式的一般形式(to do)所表示的动作，通常与谓语动词同时发生,或发生在谓语动词之后。如果不定式所表示的动作发生在谓语动词之前,那就要用不定式的完成式(to have done)。e.g.I am sorry to have kept you waiting for so long.很抱歉让你等了这么久。2.With us long believing that talking plants are fantasy,new research has revealed somet
7、hing amazing:it appears that plants can communicate after 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。with+名词/代词+非谓语动词的复合结构，在此结构中，非谓语动词可以是不定式（未发生的动作）、动词-ing形式（与前面的名词、代词构成主动关系）、动词-ed形式（与前面的名词、代词构成被动关系）e.g.With over 400 million books sold and translated into more than 70 different languages4 亿册
8、书被卖出并被翻译成70多种不同的语言3.This happens when a plant,say a bean plant,gets attacked by insects.say:比如说，用来举例子。e.g.Lets take any writer,say Dickens我们随便举一个作家为例，比如说狄更斯4.Using the wood wide web,plants can share information and even food with each other.通过使用植物万维网,植物们可以分享信息甚至食物。Using the wood wide web作句子的方式状语,句子的
9、主语plants和use这个动作是主动关系,因此用现在分词using来表示主动关系。e.g.When seeing the main characters come on stage,I was surprised！当看到主角们上台时，我很吃惊。主语和句子时间状语部分中的动词see是主动关系，因此用seeing来表示这个主动关系。5.Scientists are learning more every day about the secret ways in which plants talk to each other.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。the way作先
10、行词,后面的定语从句可以用that或in which来引导,或者关系词可以省略。e.g.The funniest thing about Charlie Chaplin was the way he walked when he was acting as the Tramp.卓别林最幽默的事就是他扮演Tramp时走路的方式。Step 4:Language practiceRead the introduction to what personification is and think about the reason why the author used this figure of s
11、peech to write this passage.According to the definition,personification refers to a figure of speech which gives human characteristics to something that is not human.The author used it to describe the plants communication to make the descriptions more vivid.Can you find some sentences in the text us
12、ing personification to describe the plants?1.This is like a warning,or a call for help:“Im being attacked.”这像是警示，抑或求助：“我被袭击了”。2.They also“listen”to the noises from other plants.它们也“倾听”来自其他植物的声音。3.Maybe one day we will know enough about plant communication to be able to“talk”with them ourselves.或许有一天
13、我们会足够了解植物之间的交流，从 而亲自和植物“聊天”了。Use personification to rewrite the sentences.e.g.当受到外界刺激时，这种植物会发生应激反应。This plant will have a stress response when it is stimulated by the outside world.(不使用拟人手法）When touched,the plant will“lower its head”shyly.（使用拟人手法）1.当这种植物受到昆虫的攻击时，它会迅速把这 个信息传递给同伴。When the plant is att
14、acked by insects,it will quickly convey the message to his neighbours.“Feeling”the pain caused by insects,the plant“tells”this message to its neighbours.2.当这种树内部缺乏水分时，它就会发出声响来引起 注意。When the tree lacks water inside,it will make a noise to attract attention.When the tree is thirsty,it will“shout”to ge
15、t noticed.3.一些松树可以利用植物万维网运送食物给那些 幼小的植株。Some pine trees can use the wood wide web to send food to smaller pine trees.Some pine trees“feed”the little ones through the wood wide web.Step 5:Practical applicationGive a talk about communication between living things.1.Read the passage again and talk about
16、 how plants communicate.2.Think about and discuss the following ways of communication in the animal world.What other ways can you think of?Bees“dance”to signal to other bees that they have found food.Ants communicate with each other through touch,chemical signals,moving their bodies and even using t
17、heir legs to make sounds.3.Organize your ideas following the steps below.Begin with what living things you have chosen to talk about.Explain how they communicate and give examples.Conclude by explaining what we have learnt from their behavior.4.Give a talk to the class about communication between li
18、ving things.Today I will talk about the secret language of animals.As humans use vocal languages to communicate,other animals have their own ways to communicate.It has been known for some time that animals use soundto communicate with each other.Frogs use their pouches(音囊）to make sound to tell their
19、 mates where they are.More surprisingly,animals also use chemicals to talk to others.This happens when an animal,say a female moth(雌蛾）uses chemicals to attract males.Besides,they can pass on information through different movements.It is in some ways similar to the body languagewe use.For example,bee
20、s“dance”to signal to other beesthat they have found food.Most surprisingly of all,ultrasound(超声波)can be a meansof their communication,such as bats and dolphins.They can use ultrasound to“talk”with each other without being heardby their enemies.Inspired by how they use ultrasound,humans created radar
21、.We are learning more everyday about their secretways in which animals talk to each other.I hope oneday we know enough about animal communication tobe able to“talk”with them ourselves.Step 6:Homework1.Finish your speech draft(演讲稿）about communication between living things.2.Preview the writing part on Page 59.Thank you!
