外研版 (2019)选择性必修 第一册Unit 5 Revealing nature备课课件ppt

这是一份外研版 (2019)选择性必修 第一册Unit 5 Revealing nature备课课件ppt，共29页。PPT课件主要包含了from the，leaves，chemicals，share，Check list等内容，欢迎下载使用。

Unit 5Revealing nature
The Secret Language f Plants
T learn hw plants cmmunicate.T learn ways f cmmunicating between plants.2. T learn sme wrds and expressins.
Hw d yu cmmunicate with each ther?
bdy language
face t face
Hw d animals cmmunicate with each ther? D yu knw?
Hw d bees cmmunicate?
They can tell thers by dancing.
Hw d ants cmmunicate?
Ants cmmunicate by chemicals.
Can yu believe plants “talk” t each ther by their wn ways?
Lk at the pictures and tick what plants can d.
attackbreatheatsleepmvespeakstealthink
Nw talk abut what else yu think plants can d and give examples.
Read the passage and find ut the ways in which plants cmmunicate.
Wrds and expressins:myths and legends 2. fantasy3. reveal 4. after all5. chemical 6. say a bean plant7. insect 8. detect9. wasp 10. pesticide
Plants can cmmunicate with each ther by using chemicals, sund and “wd wide web”.
Organise infrmatin frm the passage and cmplete the diagram.
Mdern research is shwing that plants can __________________________
cmmunicate with each ther
release its
wn, different
Using sundSme plants make nises _______________.A chili plant can ____________________________________________.Sme trees make ____________________________________________________________________________.
with their rts
tell if a neighburing plant is helpful, r unfriendly
clicking nises when there is nt enugh water, indicating drught is arriving
Using the “wd wide web”This fungal netwrk links ______________________ ______________________.Plants can ____________________________________ with each ther.Plants can _____________ _____________________ ______________t attack ther plants.
the rts f different plants t each ther
infrmatin and even fd
steal fd frm each ther, r spread pisns
Maybe ne day we wil able t “talk” with plants.
1. What figure f speech is being used when the plants are described as calling fr help? What is its functin? Persnificatin. It can make descriptins mre vivid.
Persnificatin means giving human characteristics t smething that is nt human. By using human characteristics t describe an bject, animal r even a place, persnificatin can make descriptins mre vivid.
What is persnificatin?Can yu tell frm the appearance f the wrd?
2. What des “wd wide web” mean? “Wd wide web” means an amazing system f cmmunicatin that can link nearly every plant in a frest. It is linked undergrund by fungi and 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.
3. What d yu think are the benefits f studying plant cmmunicatin? Open answers.
4. What discveries are described in the tw reading passages in this unit and what d their meanings have in cmmn?
Passage 1 reveals the discvery f evlutin and Passage 2 reveals the discvery f cmmunicatin between plants. They all reflect that there are numerus secrets in nature that remain 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.
Nw talk abut hw well yu cntributed t yur grup discussin and help each ther t make imprvements.
Yu knw ways f cmmunicating between plants.Yu can describe the different ways f cmmunicating between living things.Yu can rganize yur ideas.Yu helped yur grup members t make imprvements.Yu cntributed t yur grup talk.
1. With us lng believing that talking plants are fantasy, new research has revealed smething amazing: it appears that plants can cmmunicate after all.
We culd als say
While we have believed fr a lng time that talking plants are unreal, new research has fund ut smething amazing: it seems that plants can talk t each ther after all.
2. When anther bean plant detects the chemicals frm its injured neighbr, it starts t release its wn, different chemicals.
detect v. t ntice r discver smething, especially smething that is nt easy t see, hear etc 发现，察觉(尤指不易察觉到的事物)
eg Many frms f cancer can be cured if detected early.
【拓展】detectable adj. 可觉察的;可发现的;可查出detectr n. 探测器，检测器detective  n. 侦探，警探detectin n. 察觉，发现; 侦察
3. Mst surprisingly f all, plants have an amazing system f cmmunicatin that can link nearly every plant in a frest.
link v. : 1) t make a cnnectin between tw r mre things r peple 把……联系起来 2) t physically jin tw r mre things, peple, r places 连接(两个或两个以上的物、人或地点)
eg The new bridge will link the island t the mainland. I have heard his name linked with that f a well-knwn persn.
eg the clse link between teacher and student There's a direct link between diet and heart disease.
link n. : a cnnectin between tw peple, things r ideas  联系，关联；关系
翻译下面句子。1) 在古代，古老的丝绸之路把中国和西方连接了起来。2) 饮食与心脏病之间有直接的联系。
The ld Silk Rad linked China with the West in ancient times.
There’s a direct link between diet and heart disease.
1. Read the passage at least three times.2. Try t recite the passage.
3. 翻译句子： 1) 饥渴的土壤在雨中畅饮。 2) 花儿在微风中点头。 3) 月亮在天上赶路。
1. Thirsty sil drank in the rain.2. The flwers ndded in the breeze.3. The mn is riding in the sky.