资源简介

(共119张PPT)
Unit 5 Revealing nature
Section C　Developing ideas & Presenting ideas & Reflection
课前预习
知识体系图解
一、重点词汇
1.___________v.发现，察觉(尤指不易觉察到的事物)
2.___________n.根
3.___________v.把……联系起来；连接
detect
root
link　
4. myth n. ______________________
5. legend n.______________________
6. centimetre n.____________________　
(古代的)神话
传说，传奇(故事)
厘米
二、重点短语
1. after all ____________________________
2. as well as ___________________________
3. share...with... ________________________
4. communicate with ___________________
5. drive away ___________________________
毕竟
和；还有　
与……分享……
与……交流
驱使……离开　
6. amounts of __________________________
7. 把……连接到…… ___________________
8. 呼救 _______________________________
9. 制造噪音 ___________________________
10. 在某些方面 ________________________
11. 被描述为 __________________________
12. 并排；肩并肩 ______________________
大量，许多
link...to...
a call for help
make noises
in some ways
be described as
side by side
三、重点句式
1. Alexander the Great and Marco Polo were said to have visited such a tree in India.
2. It has been known for some time that plants use chemicals to communicate with each other.
四、写作
观察日记
介(副)词填空
1. We should share the results of our research ______them.
2.We found out he′d been stealing _______ us for years.
3.We have lots of things _______ common besides music.
4.Our approach drove ________the animals.
with
from
in
away
5. They can communicate ________ family and friends by emails，Internet phones and through private video conferences.
with
阅读导学
根据课文内容，回答下列问题。
1.What do trees often do in stories in many cultures
( )
A. Giving warnings.　 B. Telling jokes.
C. Dancing. D. Singing.
A
2. How does a bean plant act first when attacked by insects ( )
A. To run away.
B. To release chemicals.
C. To call for help.
D. To drive insects away.
B
3. What′s the function of the roots of corn plants ( )
A. To communicate.
B. To listen to other plants.
C. To indicate drought.
D. All of the above.
D
4.What′s the most surprising thing for plants ( )
A. They can use the Internet.
B. They have their own satellite.
C. They can walk near to their friends.
D. They can link nearly every plant in a forest.
D
5. What does the last paragraph mean ( )
A. The plants can own their world in the future.
B. The plants will do harm to human.
C. The plants might be talked with one day.
D. The plants may show us the secret of talking.
C
课文呈现
Developing ideas

Look at the pictures and tick what plants can do.
1
□ attack
□ breathe
□ eat
□ sleep
□ move
□ speak
□ steal
□ think
Now talk about what else you think plants can do and give examples.
Read the passage and find out the ways in which plants communicate.
2
1 Talking plants have long been a thing of myths and legends. Many cultures have stories of talking trees 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.
2 With us long believing that talking plants are fantasy，new research has revealed something amazing：it appears that plants can communicate after all.
3 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 insects. The plant releases tiny amounts of chemicals from the leaves that are being eaten.
When another bean plant detects the chemicals from its injured neighbour，it starts to release its own，different chemicals. Some of these chemicals drive 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.
4 More surprisingly，plants also use sound to communicate. People can′t hear these sounds，but plants are making them， Some plants make noises with their roots. Corn and chilli plants do this.
They also “listen” to 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.
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 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 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 prevent these attacks within the wood wide web.
6 Scientists 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 ablet o “talk” with them ourselves.
Organise information from the passage and complete the diagram.
3
Answer key to Activity 3：
l. communicate with each other
2. from the leaves
3. release its own，different chemicals
4. with their roots
5. tell if a neighbouring plant is helpful，or unfriendly
6. clicking noises when there is not enough water，indicating drought is arriving
7. the roots of different plants to each other
8. share in formation and even food
9. steal food from each other，or spread poisons
■ Learning to learn
Personification means giving human characteristics to something that is not human. By using human characteristics to describe an object，animal or even a place，personification can make descriptions more vivid.
Think Share
1 What figure of speech is being used when the plants are described as calling for help What is its function
2 What does “wood wide web” mean
3 What do you think are the benefits of studying plant communication
4 What discoveries are described in the two reading passages in this unit and what do their meanings have in common
Work in groups. Give a talk about communication between living things.
4
1 Read the passage again and talk about how plants communicate.
2 Think about and discuss the following ways of communication in the animal world.
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 their legs to make sounds.
What other ways can you think of
3 What other ways can you think of
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 behaviour.
4 Give a talk to the class about communication between living things.
Now talk about how well you contributed to your group discussion and help each other to make improvements.
Writing an observational journal
Read the observational journal and answer the questions.
5
Week 1
The daffodil bulbs have been planted side by side in soil，with the pointed ends facing up. Water has been added and the container was put
in a cool，dark place. The bulbs are
being wafered regularly.
Week 3
A single stem has sprouted from each of the bulbs. On each stem are two leaves， which are long and narrow with a waxy texture. The container has been moved to a sunny，but cool place.
Week 6
The stems have grown to around 20 centimetres fall and each has produced a single flower. The flowers are yellow and white，and shaped like trumpets.
Work in pairs. Look at the pictures and talk about how the sunflower grows.
6
Now write your observational journal about the sunflower.
Work in pairs. Make improvements to each other′s observational journals and share them with the class.
7
Presenting ideas

Work in groups. Look at the information about the nature documentaries and answer the questions.
1
1 Can you guess what secrets of nature are revealed in these documentaries
2 What other nature documentaries have you watched Which one do you like most Give your reasons.
Choose one nature documentary you like and complete the notes.
2
Practise presenting information about your documentary. Consider the following：
3
1 the structure of your presentation
2 useful words，expressions and structures
Give your presentation to the class.
4
Reflection

Write a reflection after completing this unit. Consider the following：
1 What is your understanding of the importance of revealing nature′s secrets
2 What text types have you learnt about What are their features
3 What words，expressions and structures have you learnt
Reflection

4 What improvement have you made in understanding different cultures
5 What improvement have you made in using learning strategies and exploring effective ways of learning
6 What improvement have you made in analysing and solving problems
考点精讲
重点词汇
1. Many cultures have stories of talking trees that give advice as well as warnings to people.
许多文化中都有会说话的树的故事，它给人们提供建议和警告。
【词汇精讲】
as well as为介词短语，意为“和，也，以及”。
【词汇拓展】
besides/in addition to 除……之外(还)
as well as 可以用于同级比较，意为“和…一样好”。
as well as 作介词相当于 besides，意思为“除……之外，还有”，后面通常接名词或动词-ing形式，尤其是位于句首时。
as well 是副词短语，其意思为“也”，相当于too，它一般放在句末，有时和连词 and 或 but 搭配使用。
Eg. As well as eating five apples，they drank seven bottles of wine.
除了吃了五个苹果之外，他们还喝了七瓶葡萄酒。
He speaks Chinese as well as Jane.
他中文说得和简一样好。
It is in his best interests as well as yours.
这符合他的最大利益，同时也符合你的利益。
They visited some factories，hospitals as well as the school.
他们参观了这所学校,还参观了一些工厂和医院。
【名师点睛】
as well as 连接两个并列成分作主语时，句子的谓语动词应与前面那个名词或代词的人称和数保持一致。
Eg. He as well as his classmates is going shopping this Sunday.
他和他的同学们本周星期天要去购物。
【迁移应用】
一、完成句子
(1) 他的妻子和他的孩子们都被邀请去参加聚会了。
His wife as well as his children _______________ to the party.
was invited
(2) 除了工作上的压力之外，她还要承担照顾生病母亲的责任。
________________________ the stress and pressure from her job，she bore the burden of caring for her sick mother.
As well as/In addition to
2. The plant releases tiny amounts of chemicals from the leaves that are being eaten.
这种植物从被吃掉的叶子中释放出微量的化学物质。
【词汇精讲】
amounts of 意为“大量的”，尤与不可数名词连用。
Eg. It was profitable for them to produce large amounts of food.
生产大量的食物能让他们获利。
I went out for a meal last night and drank copious amounts of red wine.
我昨晚出去吃饭，喝了很多红酒。
【词汇拓展】
the amount of...……的数量
a large/great amount of＋n.[U]大量的……
(作主语时，谓语用单数)
large amounts of ＋n. [U]大量的……
(作主语时，谓语用复数)
in amount(＝in all) 总之，总计；在数量上
in large/small amount 大/小量地；大/小批地
amount to 总计，合计 (amount 为动词)
Eg. A large amount of money was spent on the project. ＝Large amounts of money were spent on the project.
这项工程花费了大量金钱。
Their traveling expenses amount to seven hundred dollars.
他们的旅费共计700美元。
【迁移应用】
一、单句语法填空
(1) Proper amount of sleep along with regular exercise ________ important for your health.
(2) The singer′s earnings _____________ (amount) to millions of yuan last year.
is
amounted
(3) Large amounts of money ___________ (be) donated to the stricken area.
were
3. Some of these chemicals drive insects away.
其中一些化学物质能驱走昆虫。
【词汇精讲】
drive away 意为“使离去，赶走”。此外，还表示“驱车离开”。
Eg. You′d better drive away your cares as soon as possible.
你最好尽快摆脱烦恼。
I couldn′t watch them drive away as the tears were blinding me.
泪水模糊了我的双眼，我无法看着他们开车远去。
【词汇拓展】
drive up 驱车来到
drive into 赶进；灌输
drive back 驱车返回；迫使后退
drive off 开走；击退
drive sb crazy/mad 使某人发疯/发狂
drive sb to do sth 促使某人做某事
Eg. The enemy was driven back with great loss.
敌人被赶回去了，损失惨重。
The ceaseless noises from that machine are going to drive me crazy.
从那部机器发出的无休止的噪音会把我逼疯的。
【迁移应用】
一、单句语法填空
(1) The enemies were driven _______ from the city.
(2) Just then a friend drove ______ and gave me a ride.
(3) How can I drive _______ him why he shouldn′t drink so much
off
up
into
4. Most surprisingly of all，plants have an amazing system of communication that can link nearly every plant in a forest.
最令人惊讶的是，植物有一个惊人的交流系统，可以把森林里几乎所有的植物联系起来。
【词汇精讲】
link 为及物动词，意为“把……联系起来；连接”。link 作名词时，意思为“联系；连接”。
Eg. Their links with Britain are still strong.
他们与英国的联系依然很牢固。
The new bridge will link the island to the mainland.
新的大桥将把该岛与大陆连接在一起。
【词汇拓展】
be linked to/with 与……有联系；与……连接
link A with/to B　把A与B连接起来
link up (with) sb/sth与……结合/联系
Eg. The two spacecraft will link up in space.
两艘宇宙飞船将在太空对接。
We should link theory with practice.
我们应该把理论和实践结合起来。
【迁移应用】
一、完成句子
(1) 心脏病和饮食结构之间有直接联系。
There is ________________________ diet and heart disease.
a direct link between
(2) We offer advice to Asian companies that want to ______ _______________ (与……联系) Western companies.
link up with
5. It is in some way similar to the Internet we use.
它在某种程度上类似于我们使用的互联网。
【词汇精讲】similar 意为“相似的，类似的”。
Eg. We have similar tastes in music.
我们在音乐方面爱好相似。
She is similar to her mother in many ways.
她在很多方面与她的妈妈相似。
【词汇拓展】
similarly adv.相似地，类似地；同样地
similarity n.相似，类似；相似之处
be similar to 与……相似
be similar in 在……相似
Eg. He was late and I similarly was delayed.
他迟到了，我也耽误了。
There were points of similarity between them.
他们之间有某些相似之处。
【迁移应用】
一、单句语法填空
(1) The two boys are similar _______ age and appearance.
(2) The accident was similar ______ the one that happened in 2013.
(3) There were significant __________ (similarity) between the mother and the son.
in
to
similarities
6. What do you think are the benefits of studying plant communication
你认为学习植物交流有什么好处
【词汇精讲】
benefit 是名词，意为“益处，实惠，好处”。作动词时，意为“得益；获利；有益于”。
Eg. This arrangement will be of great benefit to you both.
这种安排对你们两个都会非常有益。
Who are likely to benefit most by the new marriage laws
什么人可能从新的婚姻法中得到最大的好处
【词汇拓展】
beneficial adj. 有用的，有益的，有好处的
be beneficial to 对……有好处
be of benefit to 对……有好处
for the benefit of 为了……的好处
to sb′s benefit 对某人有利
benefit from 从……中获益
Eg. It can only be to your benefit to learn a new skill.
学一种新技术只会对你有好处。
You will benefit from this experience in the end.
你最终会从这次经历中获益。
【迁移应用】
一、完成句子
(1) 新规章对我们大家都会大有好处。
The new regulations will be ____________________ us all.
of great benefit to
(2) 千千万万的人已经受益于这种新的疗法。
Many thousands _____________________ the new treatment.
(3)你们需要为社区谋利益的人。
You need people working _________________ the community.
have benefited from
for the benefit of
重点句式
1. 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·波罗在印度参观过这样的一棵树。
【句式剖析】
句中的 to have visited such a tree 是不定式的完成式。如果不定式所表示的动作发生在谓语动词之前，就要用完成式。
Eg. I am sorry to have kept you waiting.
我很抱歉让你久等了。
They pretended to have finished the job.
他们假装已经做完了工作。
He seems to have bought the new book.
＝It seems that he has bought the new book.
看起来他已经买了新书了。
【句式拓展】
(1) 不定式的一般式所表示的动作通常与谓语的动作或状态同时或几乎同时发生，或是在它之后发生。
(2) 如果谓语动词的动作(情况)发生时，不定式表示的动作正在进行，这时，不定式就要用进行式。
(3) 动词expect，intend，plan，hope，mean，promise，suppose，think，want，wish 等的过去式加不定式的完成式，或他们的过去完成时加不定式的一般式表示过去没有实现的愿望、期待或计划等。
Eg. I plan to attend the meeting to be held tomorrow.
我计划参加明天举行的会议。
He happened to be passing by when the accident happened.
当事故发生时他碰巧路过。
I intended to have called on you，but I had an unexpected visitor.
我本想去拜访你，但来了一位不速之客。
【迁移应用】
一、单句语法填空
(1) I feel greatly honored __________________ (welcome) into their society.
(2) He realized he was in the wrong and promised _______ (turn) over a new leaf.
to be welcomed
to turn
(3) A government official was reported ________________ (injure) in the incident.
(4) She pretended ________________ (listen)，but her mind had already wandered far away.
to have been injured
to be listening
2. It has been known for some time that plants use chemicals to communicate with each other.
一段时间以来，人们都知道植物使用化学物质相互交流。
【句式剖析】
句中的 it 在此处是形式主语，真正的主语是 that 引导的主语从句。
Eg. It′s strange that he (should) attend such an important meeting.
真奇怪，他竟能参加如此重要的会议。
It is reported that the temperature will decline sharply in one or two days.
据报道，一两天内气温将急剧下降。
【句式拓展】
(1) that从句作主语时，可以用it 来替换成以下几种结构：
①It is＋名词短语+从句：这样的名词短语有a fact，a surprise，an honor，a pity，common knowledge (常识) 等。
②It is＋形容词＋从句：这样的形容词有natural，true，strange，necessary，important，obvious，certain，wonderful，funny，possible，likely 等。
③ It＋动词＋从句：这样的动词有 seem，happen，appear，look，matter，make，strike，occur(突然想起)等。
④ It＋be＋分词＋从句：这样的分词有said，reported，believed，known，decided，proved，thought，expected，announced，arranged，hoped，agreed，amusing，puzzling，striking 等。
(2) It 除了可以替代主语从句作主语外，还可以替代不定式或动词 –ing 作主语。
① It is＋adj./n. ＋to do sth
② It is no use/no good/useless doing sth
Eg. It is necessary for you to learn a second foreign language.
你有必要再学一门外语。
It is common knowledge that the full moon brings fair weather.
皓月兆天晴，这是常识。
【迁移应用】
一、单句语法填空
(1) _________felt funny watching myself on TV.
(2) It is not easy ___________ (finish) the work in two days.
(3) It′s useless _________ (take) this kind of medicine.
(4) It is a pity ________ you missed the football match.
It
to finish
taking
that
高分写作
如何写观察日记
以观察某种植物的特性或者生长过程为主题写一篇日记。
注意：
1.词数80左右；
2.注意日记的写作格式。
提示：1. 含羞草 mimosa　
2. 刺(名词) thorn　
3. 刺(动词) prick　
4. 叶柄 petiole
一、审题构思
1. 确定体裁：本文为日记；
2. 确定人称：本文的主要人称为第一人称；
3. 确定时态：以一般现在时、一般过去时为主。
二、谋篇布局
第一段：和妈妈去花店买了含羞草；
第二段：回到家仔细观察含羞草。
三、组织语言
核心词汇
1. impress 给……留下深刻的印象
2. notice 注意到
3. dozens of 很多
4. tiny 极小的
5. stem 茎
6. connect 连接
7.branch 树枝
高级句式
1. 我妈妈带我去了花店，在那里我欣赏了各种各样的花草。(where引导的定语从句)
My mother took me to a flower shop where I enjoyed all kinds of flowers and plants.
2. 在所有这些花当中，给我印象最深的一个是含羞草。(定语从句)
Among all the flowers，the one that impressed me most was the mimosa.
3.在我们离开之前，我叫我妈妈买了含羞草。(before＋doing)
Before leaving，I asked my mother to buy the mimosa plant.
3. 在我们离开之前，我叫我妈妈买了含羞草。(before＋doing)
Before leaving，I asked my mother to buy the mimosa plant.
4. 当我们到家时，我注意到含羞草的叶子是绿色的，由很多细小的叶子组成。(状语从句,宾语从句)
When I got home，I noticed that the leaves of the mimosa was green and made up of dozens of tiny leaves.
5. 如果我们不小心碰到它，我们的手就会被刺到流血。(if结构)
If we accidentally touch it，our hand will be pricked bleeding.
四、连句成文
参考范文
October 1st Tuesday Fine
Today is National Day. My mother took me to a flower shop where I enjoyed all kinds of flowers and plants. Among all the flowers，the one that impressed me most was the mimosa.
It seemed very small among the tall green plants，and before leaving，I asked my mother to buy the mimosa plant.
When I got home，I noticed that the leaves of the mimosa were green and made up of dozens of tiny leaves. There is a leaf stem connecting the leaves in the middle. Each of its branches has a small thorn.
If we accidentally touch it，our hand will be pricked bleeding. The mimosa is like a shy little girl. I touched it gently on its leaves，and it closed up along the petiole. What fun it is!
随堂练习
一、单句语法填空
1. He believed that these creatures are linked ________a common ancestor.
2. Mr Liu can speak English，but he can speak Cantonese __________ well.
to
as
3. Sports and politics can have amounts ________ influence on each other.
4. He shared some interesting facts and stories ________us.
5. The way ________ he drives scares me to death.
6.____________ (surprise)，we caught the honest boy steal money from others.
of
with
that
Surprisingly
7. The teacher as well as all the students __________ (be) interested in the question.
is/was
二、课文语法填空
Talking plants can be seen in the stories in many cultures，1._______ trees can give us advice as well as warnings. But new research 2.____________ (reveal) something amazing. They can communicate 3._________ many ways，a bean plant 4._____________ (release) tiny chemicals，corn and chilli plants making sounds.
where
has revealed
in
releasing
Most 5.____________ (surprise) of all，nearly every plant in a forest can be linked by the “wood wide web”. The fungal network 6._________ (link) the roots of different 7. 　　　　　 __________ (plant) to each other and even spread poisons 8.　　　　　_________ (attack) other plants.9._______is believed that one day we are able 10.________(talk) with them ourselves.
surprisingly　
links
plants
to attack　
It
to talk
本课结束
This lesson is over
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