外研版 (2019)选择性必修 第一册Unit 5 Revealing nature课文配套课件ppt

这是一份外研版 (2019)选择性必修 第一册Unit 5 Revealing nature课文配套课件ppt，共60页。PPT课件主要包含了课前预习，重点词汇 ，detect，root，link　，古代的神话，传说传奇故事，重点短语，和还有　，与分享等内容，欢迎下载使用。

Sectin C　Develping ideas & Presenting ideas & Reflectin
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 
4. myth n. ______________________5. legend n.______________________6. centimetre n.____________________　 
1. after all ____________________________2. as well as ___________________________3. ________________________4. cmmunicate with ___________________5. drive away___________________________
6. amunts f __________________________ 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 ______________________ 
a call fr help
in sme ways
be described as
side by side
1. Alexander the Great and Marc Pl were said t have visited such a tree in India.2. It has been knwn fr sme time that plants use chemicals t cmmunicate with each ther.
1. We shuld share the results f ur research ______them. 2.We fund ut he′d been stealing _______ us fr years. 3.We have lts f things _______ cmmn besides music. 4.Our apprach drve ________the animals. 
5. They can cmmunicate ________ family and friends by emails，Internet phnes and thrugh private vide cnferences. 
根据课文内容，回答下列问题。
1.What d trees ften d in stries in many cultures?( )A. Giving warnings.　 B. Telling jkes.C. Dancing. D. Singing.
2. Hw des a bean plant act first when attacked by insects?( )A. T run away.B. T release chemicals.C. T call fr help.D. T drive insects away.
3. What′s the functin f the rts f crn plants?( )A. T cmmunicate.B. T listen t ther plants.C. T indicate drught.D. All f the abve.
4.What′s the mst surprising thing fr plants?( )A. They can use the Internet.B. They have their wn satellite.C. They can walk near t their friends.D. They can link nearly every plant in a frest.
5. What des the last paragraph mean?( )A. The plants can wn their wrld in the future.B. The plants will d harm t human.C. The plants might be talked with ne day.D. The plants may shw us the secret f talking.
□ attack□ breathe□ eat□ sleep
□ mve□ speak□ steal□ think
Nw talk abut what else yu think plants can d and give examples.
1 Talking plants have lng been a thing f myths and legends. Many cultures have stries f talking trees that give advice as well as warnings t peple. Alexander the Great and Marc Pl were said t have visited such a tree in India. And in sme mdern stries，such as the film Avatar，trees can cmmunicate with animals and peple.
2 With us lng believing that talking plants are fantasy，new research has revealed smething amazing：it appears that plants can cmmunicate after all.
3 It has been knwn fr sme time that plants use chemicals t cmmunicate with each ther. This happens when a plant，say a bean plant，gets attacked by insects. The plant releases tiny amunts f chemicals frm the leaves that are being eaten.
When anther bean plant detects the chemicals frm its injured neighbur，it starts t release its wn，different chemicals. Sme f these chemicals drive insects away. Others attract insects-the wasps! The wasps kill the insects that are eating the bean plants. Scientists hpe t learn mre abut this plant warning system，s that we can use it t grw crps withut pesticides.
4 Mre surprisingly，plants als use sund t cmmunicate. Peple can′t hear these sunds，but plants are making them， Sme plants make nises with their rts. Crn and chilli plants d this.
They als “listen” t the nises frm ther plants. A chilli plant can tell if a neighburing plant is helpful，r unfriendly. Sme trees make clicking nises when there is nt enugh water，indicating drught is arriving.
5 Mst surprisingly f all， plants have an amazing system f cmmunicatin that can link nearly every plant in a frest. Scientists call this system the“wd wide web”. It is in sme ways similar t the Internet we use. While the Internet is a wrldwide netwrk f cmputers linked by cables and satellites，the wd wide web is linked undergrund by fungi.
This fungal netwrk links the rts f different plants t each ther. Using the wd wide web, plants can share infrmatin and even fd with each ther. Fr example，sme pine trees can send fd t smaller pine trees t help them grw，But just like ur wn Internet，the wd wide web has its wn versin f “cybercrime”. Plants can steal fd frm each ther，r spread pisns t attack ther plants.
Perhaps ne day scientists will learn hw t create a “ firewall” t help prevent these attacks within the wd wide web.
6 Scientists are learning mre every day abut the secret ways in which plants talk t each ther. Wh knws? Maybe ne day we will knw enugh abut plant cmmunicatin t be ablet “talk” with them urselves.
Answer key t Activity 3：
l. cmmunicate with each ther2. frm the leaves3. release its wn，different chemicals4. with their rts5. tell if a neighburing plant is helpful，r unfriendly
6. clicking nises when there is nt enugh water，indicating drught is arriving7. the rts f different plants t each ther 8. share in frmatin and even fd 9. steal fd frm each ther，r spread pisns
1 What figure f speech is being used when the plants are described as calling fr help? What is its functin?2 What des “wd wide web” mean?3 What d yu think are the benefits f studying plant cmmunicatin?4 What discveries are described in the tw reading passages in this unit and what d their meanings have in cmmn?
1 Read the passage again and talk abut hw plants cmmunicate.
2 Think abut and discuss the fllwing ways f cmmunicatin in the animal wrld.
• Bees “dance” t signal t ther bees that they have fund fd.• Ants cmmunicate with each ther thrugh tuch，chemical signals，mving their bdies and even using their legs t make sunds.What ther ways can yu think f ?
3 What ther ways can yu think f?
• Begin with what living things yu have chsen t talk abut.• Explain hw they cmmunicate and give examples.• Cnclude by explaining what we have learnt frm their behaviur.
4 Give a talk t the class abut cmmunicatin between living things.
Nw talk abut hw well yu cntributed t yur grup discussin and help each ther t make imprvements.
The daffdil bulbs have been planted side by side in sil，with the pinted ends facing up. Water has been added and the cntainer was put in a cl，dark place. The bulbs are being wafered regularly.
A single stem has spruted frm each f the bulbs. On each stem are tw leaves， which are lng and narrw with a waxy texture. The cntainer has been mved t a sunny，but cl place.
The stems have grwn t arund 20 centimetres fall and each has prduced a single flwer. The flwers are yellw and white，and shaped like trumpets.
Nw write yur bservatinal jurnal abut the sunflwer.
1 Can yu guess what secrets f nature are revealed in these dcumentaries?2 What ther nature dcumentaries have yu watched? Which ne d yu like mst? Give yur reasns.
1 the structure f yur presentatin2 useful wrds，expressins and structures
Write a reflectin after cmpleting this unit. Cnsider the fllwing：
1 What is yur understanding f the imprtance f revealing nature′s secrets?2 What text types have yu learnt abut? What are their features?3 What wrds，expressins and structures have yu learnt?
4 What imprvement have yu made in understanding different cultures?5 What imprvement have yu made in using learning strategies and explring effective ways f learning?6 What imprvement have yu made in analysing and slving prblems?
【词汇精讲】 as well as为介词短语，意为“和，也，以及”。
besides/in additin t 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t，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 bttles f 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 yurs.这符合他的最大利益，同时也符合你的利益。They visited sme factries，hspitals as well as the schl.他们参观了这所学校,还参观了一些工厂和医院。
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 ging shpping this Sunday.他和他的同学们本周星期天要去购物。
(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 _______________ t 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 frm her jb，she bre the burden f caring fr her sick mther.
As well as/In additin t
Eg. It was prfitable fr them t prduce large amunts f fd.生产大量的食物能让他们获利。I went ut fr a meal last night and drank cpius amunts f red wine.我昨晚出去吃饭，喝了很多红酒。
the amunt f...……的数量a large/great amunt f＋n.[U]大量的……(作主语时，谓语用单数)large amunts f ＋n. [U]大量的……(作主语时，谓语用复数)
in amunt(＝in all) 总之，总计；在数量上in large/small amunt 大/小量地；大/小批地amunt t 总计，合计 (amunt 为动词)
Eg. A large amunt f mney was spent n the prject. ＝Large amunts f mney were spent n the prject.这项工程花费了大量金钱。Their traveling expenses amunt t seven hundred dllars.他们的旅费共计700美元。
(1) Prper amunt f sleep alng with regular exercise ________ imprtant fr yur health.(2) The singer′s earnings _____________ (amunt) t millins f yuan last year.
(3) Large amunts f mney ___________ (be) dnated t the stricken area.
Eg. Yu′d better drive away yur cares as sn as pssible.你最好尽快摆脱烦恼。I culdn′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。
drive up 驱车来到drive int 赶进；灌输drive back 驱车返回；迫使后退drive ff 开走；击退drive sb crazy/mad 使某人发疯/发狂drive sb t d sth 促使某人做某事
Eg. The enemy was driven back with great lss.敌人被赶回去了，损失惨重。The ceaseless nises frm that machine are ging t drive me crazy.从那部机器发出的无休止的噪音会把我逼疯的。
(1) The enemies were driven _______ frm the city.(2) Just then a friend drve ______ and gave me a ride.(3) Hw can I drive _______ him why he shuldn′t drink s much?
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 strng.他们与英国的联系依然很牢固。The new bridge will link the island t the mainland.新的大桥将把该岛与大陆连接在一起。
be linked t/with 与……有联系；与……连接link A with/t B　把A与B连接起来link up (with) sb/sth与……结合/联系
Eg. The tw spacecraft will link up in space.两艘宇宙飞船将在太空对接。We shuld link thery with practice.我们应该把理论和实践结合起来。
(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 ffer advice t Asian cmpanies that want t ______ _______________ (与……联系) Western cmpanies.
link up with
【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 t her mther in many ways.她在很多方面与她的妈妈相似。
similarly adv.相似地，类似地；同样地similarity n.相似，类似；相似之处be similar t 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 pints f similarity between them.他们之间有某些相似之处。
(1) The tw bys are similar _______ age and appearance.(2) The accident was similar ______ the ne that happened in 2013.(3) There were significant __________ (similarity) between the mther and the sn.
similarities
Eg. This arrangement will be f great benefit t yu bth.这种安排对你们两个都会非常有益。Wh are likely t benefit mst by the new marriage laws?什么人可能从新的婚姻法中得到最大的好处?
beneficial adj. 有用的，有益的，有好处的be beneficial t 对……有好处be f benefit t 对……有好处fr the benefit f 为了……的好处t sb′s benefit 对某人有利benefit frm 从……中获益
Eg. It can nly be t yur benefit t learn a new skill.学一种新技术只会对你有好处。Yu will benefit frm this experience in the end.你最终会从这次经历中获益。
(1) 新规章对我们大家都会大有好处。The new regulatins will be ____________________ us all.
f great benefit t
(2) 千千万万的人已经受益于这种新的疗法。Many thusands _____________________ the new treatment.(3)你们需要为社区谋利益的人。Yu need peple wrking _________________ the cmmunity.
have benefited frm
fr the benefit f
1. Alexander the Great and Marc Pl were said t 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。
句中的 t 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 srry t have kept yu waiting.我很抱歉让你久等了。They pretended t have finished the jb.他们假装已经做完了工作。He seems t have bught the new bk.＝It seems that he has bught the new bk.看起来他已经买了新书了。
(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，hpe，mean，prmise，suppse，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 t attend the meeting t be held tmrrw.我计划参加明天举行的会议。
He happened t be passing by when the accident happened.当事故发生时他碰巧路过。I intended t have called n yu，but I had an unexpected visitr.我本想去拜访你，但来了一位不速之客。
(1) I feel greatly hnred __________________ (welcme) int their sciety.(2) He realized he was in the wrng and prmised _______ (turn) ver a new leaf.
t be welcmed
(3) A gvernment fficial was reprted ________________ (injure) in the incident.(4) She pretended ________________ (listen)，but her mind had already wandered far away.
t have been injured
t be listening
2. It has been knwn fr sme time that plants use chemicals t cmmunicate with each ther.一段时间以来，人们都知道植物使用化学物质相互交流。
Eg. It′s strange that he (shuld) attend such an imprtant meeting.真奇怪，他竟能参加如此重要的会议。It is reprted that the temperature will decline sharply in ne r tw days.据报道，一两天内气温将急剧下降。
(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 hnr，a pity，cmmn knwledge (常识) 等。
②It is＋形容词＋从句：这样的形容词有natural，true，strange，necessary，imprtant，bvius，certain，wnderful，funny，pssible，likely 等。③ It＋动词＋从句：这样的动词有 seem，happen，appear，lk，matter，make，strike，ccur(突然想起)等。
④ It＋be＋分词＋从句：这样的分词有said，reprted，believed，knwn，decided，prved，thught，expected，annunced，arranged，hped，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. ＋t d sth② It is n use/n gd/useless ding sth
Eg. It is necessary fr yu t learn a secnd freign language.你有必要再学一门外语。It is cmmn knwledge that the full mn brings fair weather.皓月兆天晴，这是常识。
(1) _________felt funny watching myself n TV.(2) It is nt easy ___________ (finish) the wrk in tw days.(3) It′s useless _________ (take) this kind f medicine.(4) It is a pity ________ yu missed the ftball match.
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 mimsa　2. 刺(名词) thrn　3. 刺(动词) prick　4. 叶柄 petile
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。
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。
1. impress 给……留下深刻的印象2. ntice 注意到3. dzens f 很多4. tiny 极小的
5. stem 茎6. cnnect 连接7.branch 树枝
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 mther tk me t a flwer shp where I enjyed all kinds f flwers 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)Amng all the flwers，the ne that impressed me mst was the mimsa.3.在我们离开之前，我叫我妈妈买了含羞草。(befre＋ding)Befre leaving，I asked my mther t buy the mimsa plant.
3. 在我们离开之前，我叫我妈妈买了含羞草。(befre＋ding)Befre leaving，I asked my mther t buy the mimsa 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 gt hme，I nticed that the leaves f the mimsa was green and made up f dzens f 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 tuch it，ur hand will be pricked bleeding.
参考范文Octber 1st Tuesday Fine Tday is Natinal Day. My mther tk me t a flwer shp where I enjyed all kinds f flwers and plants. Amng all the flwers，the ne that impressed me mst was the mimsa.
It seemed very small amng the tall green plants，and befre leaving，I asked my mther t buy the mimsa plant.
When I gt hme，I nticed that the leaves f the mimsa were green and made up f dzens f tiny leaves. There is a leaf stem cnnecting the leaves in the middle. Each f its branches has a small thrn.
If we accidentally tuch it，ur hand will be pricked bleeding. The mimsa is like a shy little girl. I tuched it gently n its leaves，and it clsed up alng the petile. What fun it is!
1. He believed that these creatures are linked ________a cmmn ancestr. 2. Mr Liu can speak English，but he can speak Cantnese __________ well. 
3. Sprts and plitics can have amunts ________ influence n each ther.  4. He shared sme interesting facts and stries ________us. 5. The way ________ he drives scares me t death. 6.____________ (surprise)，we caught the hnest by steal mney frm thers. 
Surprisingly
7. The teacher as well as all the students __________ (be) interested in the questin. 
Talking plants can be seen in the stries in many cultures，1._______ trees can give us advice as well as warnings. But new research 2.____________ (reveal) smething amazing. They can cmmunicate 3._________ many ways，a bean plant 4._____________ (release) tiny chemicals，crn and chilli plants making sunds.
has revealed
Mst 5.____________ (surprise) f all，nearly every plant in a frest can be linked by the “wd wide web”. The fungal netwrk 6._________ (link) the rts f different 7. 　　　　　 __________ (plant) t each ther and even spread pisns 8.　　　　　_________ (attack) ther believed that ne day we are able 10.________(talk) with them urselves.
surprisingly