英语选择性必修 第一册Unit 5 Revealing nature授课ppt课件

这是一份英语选择性必修 第一册Unit 5 Revealing nature授课ppt课件，共43页。
What can we human d?Fr example, we can walk, we can talk, we can breathe… Can plants d these?
( ) attack ( ) mve ( ) breathe ( ) speak( ) eat ( ) steal ( ) sleep ( ) think
Lk at the pictures and talk abut what plants can d.
Plants d behave.
Can plants talk t each ther?
New research:
It appears that plants can cmmunicate after all.
Read the passage and find ut the ways in which plants cmmunicate.
The Secret Language f Plants
Pre-reading
What is the passage mst likely t be taken frm?A scientific magazine A guide bkA fictin stry What is the writer’s purpse in writing the passage?T intrduce the ways plants cmmunicate with each ther.T cmpare the differences between plants and humans.T predict where technlgy will take plants.
While-reading：Read fr structure
Part 1Intrductin
Part 3Cnclusin
Plants can cmmunicate.(The thesis statemnet)
Plants have varius ways t cmmunicate.(chemicals, sund, www)
Scientists are learning mre abut plants’ language.(restate the thesis statement)
While-reading：Read fr details
Para. 1-2: Intrductin
Para.1 Talking plants have lng been a thing f myths and legends.
Talking trees give__________________t peple. eg, Alexander the Great and Marc Pl were said t have visited such a tree in India.
Evidence frm stries f many cultures.
Evidence frm sme mdern stries.
Trees in the film Avatar can cmmunicate with__________________.
advice and warnings
animals and peple
Alexander the Great
Which f the fllwing is the functin f paragraph 2?A. T intrduce the fllwing cntext.B. T describe an experiment.C. T tell the imprtance f plants.D. T give a piece f evidence.Para 2. is used t clearly illustrate the thesis statement. It’s als a transitinal paragraph.
Para. 3: Using chemicals
a bean plant
anther bean plant
different chemicals
Why d scientists d research n this plant warning system?T explre the wnders f natureT apply it int agricultureT prtect plantsT predict the future f plants
Enjy the sentence
This is like a warning, r a call fr help: “I’m being attacked！”
Which figure f speech is being used?
Use persnificatin t rewrite the sentences.
“Feeling” the pain caused by insects, the plant “tells” this message t its neighbrs.
When the tree is thirsty, it will “shut” t get nticed.
“Feeling” the pain caused by insects, the plant shuts “I am being attacked” t let its neighbrs knw.
Para. 4: Using sund
Sme plants make nises ____________________________.A chill plant can _______________________________________.Sme trees make________________________________________ _____________________________________________________.
with their rts
tell if a neighbring plant is helpful, r unfriendly
clicking nises when there is nt enugh water, indicating drught is arriving
Para. 5: Using the “Wd Wide Web”
“Wd Wide Web” refers t an amazing system f cmmunicatin that can link nearly every plant in a frest.
What des “Wd Wide Web” mean?
cables and satellites
different plants
infrmatin and even fd
ther plants
The differences between “Wrld Wide Web” and “Wd Wide Web”
Para. 5: Cnclusin
Accrding t Para. 6, what is the writer’s attitude twards the scientific research n the secret language f plants?A. Psitive B. Negative C. Neutral D. IndifferentWhat is the functin f Para.6?
It is a cnclusin and a restatement f the thesis statement. It als raises an expectatin abut future research f plant cmmunicatin.
Organise infrmatin frm the passage and cmplete the diagram.
cmmunicate with each ther
frm the leaves
release its wn,different chemicals
tell if a neighburing plant is helpful, r unfriendly
clicking nises t indicate drught's cming
the rts f different plants
share infrmatin and even fd
steal fd frm each ther r spread pisns
Pst-reading
What are the benefits f studying plant cmmunicatin？What discveries are described in the tw reading passages in this unit and what d their meanings have in cmmn?
Peple can have a better understanding f plants and explre mre abut the mysterius plants.Peple can make better use f plants fr the benefit f mankind.Peple can better prtect nature and live in harmny with nature.
What are the benefits f studying plant cmmunicatin？
What discveries are described in the tw reading passages in this unit? What d their meanings have in cmmn?
Passage 1 reveals the secret f evlutin.
Passage 2 reveals the secret f cmmunicatin between plants.
They all reflect that there are numerus secrets in nature that are waiting t be explred.
Wrk in grups
Give a talk abut cmmunicatin between living things.
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 Organise yur ideas fllwing the steps belw. 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.
Language pints
Many cultures have stries f talking trees that give advice as well as warnings t peple. 许多文化都有会说话的树的故事, 它们给人们提供建议和警示。as well as 也; 和……一样; 不但……而且【语块积累】as well 　　　　adv. 也, 还有as gd as和……几乎一样, 实际上等于……as far as adv. 至于, 直到, 远到; 就……而言as lng as只要; 和……一样长as sn as一……就
With us lng believing that talking plants are fantasy, new research has revealed smething amazing: it appears that plants can cmmunicate after all.  长久以来, 我们一直认为会说话的植物是幻想, 而最新的研究揭示了一些令人惊奇的事情: 植物似乎可以交流。【句式解构】　　本句为主从复合句。句中With us lng believing that是with引导的复合结构作状语, 第一个that引导的是宾语从句, 第二个that 引导的是主语从句, it 是形式主语。Yu have n idea hw she finished the relay race with her ft wunded s much. The ld cuple ften take a walk after supper in a park with their pet dg fllwing them.
It has been knwn fr sme time that plants use chemicals t cmmunicate with each ther. 人们早已知晓植物之间使用化学物质进行交流。【句式解构】　　本句为主从复合句。句中It为形式主语; that引导的是主语从句。It was bvius that the manager f the cffee shp was waiting fr Li Fang t leave. It is said that Chinese peple are living fr thers, while the Americans are fr themselves.
常见的it作形式主语(1)it作形式主语, 真正的主语是后面that引导的主语从句, 常见的有: ①It+be+形容词(pssible, strange, natural, imprtant. . . ) +that从句②It+be+过去分词(said, thught, believed, suppsed, reprted. . . ) +that从句③It+不及物动词(seems, ccurs, happens. . . ) +that从句④It+be+名词词组(a pity, an hnur, n wnder) +that从句
This is like a warning, r a call fr help. 这就像一个警告, 或者一个求助电话。call fr 需要; 要求【语块积累】call fr　　　　需要; 要求; 去接某人call in顺便拜访; 请人来帮忙; 电话通知call ff取消call n/upn呼吁; 号召call ut喊叫call up使想起, 使回忆起
【即学活用】(1)语法填空。①The trip t Italy might be called ___. ②The film called ___ memries f my little brther. (2)I ften ______n him at the weekend.  我经常在周末去看他。(3)Sme grups are _________the release f plitical prisners in that cuntry. 那个国家的一些团体要求释放那些政治犯。 
Sme f these chemicals drive insects away. 其中一些化学物质可以驱赶昆虫。drive away 驱赶走【语块积累】drive 　　　　v. & n. 驾驶drive sb. t开车送某人去……drive dwn t开车去drive ut f驱赶出drive. . . ff/away驱赶走drive n开车继续赶路driving license n. 驾驶执照driving test n. 驾驶执照考试
It is in sme ways similar t the Internet we use. 它在某些方面类似于我们使用的互联网。in sme ways 在某些方面; 在某种程度上【语块积累】all the way 总是; 一直 n the/ne’s way 在……路上by the way 顺便 n way 没门, 不可能in the way 挡道; 妨碍 make ne’s way 前进in this/that way以……方式 in n way 决不have a lng way t g 有很长的路要走in a way/ in ne way/ in sme way/ways 在某种程度上
【即学活用】(1)Jane’s grandmther had wanted t write a children’s bk fr many years, but ne thing r anther always gt _________.  简的祖母多年来一直想写一本儿童读物, 但总是遇到这样或那样的障碍。(2)The bstacles facing him tday are ____________as big as ever.  他如今所面对的障碍, 在某些方面和以往一样大。(3) We gt there by driving slw __________.  我们开着车去了那里, 一路上开得很慢。(4) _________am I ging t adpt any f his methds.  我绝对不会采纳他的任何方法。
in sme ways
all the way
But just like ur wn Internet, the wd wide web has its wn versin f “cybercrime”. 但就像我们自己的互联网一样, 树维网也有自己的“网络犯罪”版本。ne’s wn某人自己的【语块积累】wn 　　　　　　　　vt. 拥有prn. 属于自己的n/by ne’s wn 独自, 靠自己　f ne’s wn属于某人自己的cme int ne’s wn获得应有的荣誉、承认、名声等hld ne’s wn(against sb. /sth. ) 坚守立场; 不被击败
【即学活用】(1)It is estimated that 40% f high schl students _____________mbile phnes.  据估计, 40%的高中生有自己的手机。(2)Lk at all ____________as if yu just bught r received them tday.  对待你所拥有的一切, 就像你今天刚刚买到或收到的一样。
have their wn
Writing an bservatinal jurnalRead the bservatinal jurnal and answer the questins.
1　Hw were the daffdil bulbs planted? 2　In what envirnment did the leaves grw? 3　What d the flwers lk like?
They were planted side by side in sil, with the pinted ends facing up.
The leaves grew in a sunny, but cl place.
The flwers are yellw and white, and shaped like trumpets.
Wrk in pairs. Lk at the pictures and talk abut hw the sunflwer grws.
One pssible versin:An bservatinal jurnal abut the sunflwer1 JuneCvered with 1-2 cm f mist sil, the sunflwer seed takes a few days t cme up after being planted. Water has been added regularly and the hard seed cat sftens in the damp sil t allw the first rt t pierce dwnwards and the first leaves t push t the sil surface.6 JulyThe rt cntinues t grw dwnwards. The single stem grws hllw and smth, revealing large spade-shaped leaves frm the grwing tip. Gradually, the plant’s grwing tip reveals the first hints f develpment f the flwer bud. The plant stem becmes mre wdy.26 JulyAbut three weeks after the flwer bud first becmes visible at the tip f the sunflwer stem, it enlarges and begins t reveal a flattened disc. Over the curse f ne week, the yellw ray flrets, the disc flrets blm acrss the cre f the sunflwer blssm. It is yellw, lking beautiful.
Presenting ideas
Wrk in grups. Lk at the infrmatin abut the nature dcumentaries and answer the questins.
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.
Chse ne nature dcumentary yu like and cmplete the ntes.
Title : ____________________________________________________Main theme: _______________________________________________Reasns yu recmmend it :___________________________________________________________________________________________
Practise presenting infrmatin abut yur dcumentary. Cnsider the fllwing:
1 the structure f yur presentatin2 useful wrds, expressins and structures
Review language pints.Write yur bservatinal jurnal abut the sunflwer.