高中英语外研版 (2019)选择性必修 第三册Unit 6 Nature in words多媒体教学课件ppt

这是一份高中英语外研版 (2019)选择性必修 第三册Unit 6 Nature in words多媒体教学课件ppt，共38页。PPT课件主要包含了DDT，C　 ，A 　 ，D　 ，C 　 ，Author，Purposes，research等内容，欢迎下载使用。

Unit 6Nature in wrds
Silent Spring
T understand the text and the authr's evaluatin f Rachel Carsn. Cnsider the message f Silent Spring and its implicatins fr scietyT understand the theme f the text, deepen the understanding f the unit theme, think abut the impact f human activities n the natural envirnment, and imprve the awareness f prtecting nature
D yu knw infgraphic? Why we use infgraphic?
An infgraphic is a cllectin f imagery, charts, and minimal text that gives an easy-t-understand verview f a tpic.
Prvide a quick verview f a tpicExplain a cmplex prcessDisplay research findings r survey dataSummarize a lng blg pst r reprtCmpare and cntrast multiple ptinsRaise awareness abut an issue r cause
Infgraphics are great fr making cmplex infrmatin easy t digest. They can be helpful anytime yu want t:
Why are infgraphics used?
Lk at the infgraphic belw and answer the questins.
Facts abut DDT:DDT was first prduced in 1874 and was later used as pesticide.It stays in the envirnment.It is highly pisnus t living rganism, including humans.Nw banned in many cuntries, it is still used in sme fr malaria cntrl.
a chemical cmpund that was riginally develped as an insecticide. It has n clur, taste r dur (气味). Its agricultural use was banned in the US in 1972 because f its damaging effects n the envirnment.
1 Hw des DDT reach the human bdy in the fd chain?
When DDT is sprayed nt plants in rder t kill insects, it is absrbed by plants and subsequently cnsumed by animals; humans in turn eat thse animals. DDT als leaks thrugh the sil and int rivers and lakes, where it cntaminates fish cnsumed by humans.
2 What harm des DDT cause?
DDT is highly pisnus t living rganism, including humans.
Hw much d yu knw abut the bk Silent Spring?
Silent Spring began with a “fable fr tmrrw” – a true stry using a cmpsite f examples drawn frm many real cmmunities where the use f DDT had caused damage t wildlife, birds, bees, agricultural animals, dmestic pets, and even humans.
Silent Spring inspired the mdern envirnmental mvement, which began in earnest a decade later. It is recgnized as the envirnmental text that “changed the wrld.” Rachel Carsn was a prphetic (有先见之明的) vice and her “witness fr nature” is even mre relevant and needed if ur planet is t survive int a 22nd century.
Learn smething abut the authr Rachel Carsn.
Rachel Carsn, writer, scientist, and eclgist, grew up simply in the rural river twn f Springdale, Pennsylvania. Rachel Carsn wrte nly fur bks, but each f them in sme measure changed the way we thught abut urselves and ur wrld.
1941: Under the Sea-Wind 1951: The Sea Arund Us 1955: The Edge f the Sea 1962: Silent Spring
Read the bk review n Silent Spring, a bk that led t the banning f DDT. Predict what will be mentined in the passage.
① Basic infrmatin abut the bk, including the authr, year f publicatin, theme and main idea;② The reasn why this bk is published;③ Features f the writing;④ Cmments n this bk;⑤ Influence f this bk.
Nw read the passage and check yur predictin.
1. Which wrk was regarded as a milestne in the launch f the green mvement in the Western wrld? A. The Edge f the Sea. B. Under the Sea Wind. C. Silent Spring. D. First Snw.
Chse the best answers.
2. Why was Silent Spring s successful? A. Because it caused a great increase in envirnmental awareness. B. Because the writer is very famus. C. Because it reflects the realism. D. Because the bird described is very nice.
3. What’s the tpic f Silent Spring? A. Lve, hpe, human. B. Nature, lve, life. C. Envirnment, life, human. D. Envirnment, lve, human.
4. Wh did Carsn mainly get criticism frm? A. Mst scientists. B. Chemists. C. Marine bilgists. D. Pesticide industry peple.
5. Why des the authr like Silent Spring? A. Its strng arguments. B. Interesting tpic. C. The beauty and elegance f writing. D. The quality f argument.
Organize infrmatin frm the passage and cmplete the ntes abut Silent Spring.
Rachel Carsn
Year f publicatin:
Carsn aimed t alert peple t __________________________ n natural ecsystems.She wished t see pesticides used in a __________________________ __________________way.
the damaging f human activity
mre respnsible, limited and
carefully mnitred
_____________________ said that Carsn’s research is nt precise. Carsn appeared in public and n televisin t ____________________.
Features f the bk:
Carsn wrte a lt f ______________________________________________ in the bk.The arguments are strng, and the language is _______________________.
scientific infrmatin, examples and
beautiful and elegant
Oppsing vices:
The pesticide industry
defend her claims
Influence f the bk:
__________________ was banned and the EPA was established in the US.Carsn earned a psthumus ____________________________.The bk changed the wrld by increasing peple’s ___________________________.
The use f DDT
Presidential Medal f Freedm
envirnmental awareness
Nw wrk in pairs. Talk abut which aspects f the bk review make yu want t read the bk.
The influence f the bk aruse my interest in reading the bk. Because The bk ‘Silent Spring’ triggered an envirnmental mvement and as such we have knwn the txic effects f chemical agriculture, basically frm the very beginning. We have suffered bth massive envirnmental damage, disease and pest resistance, and human health issues.
1 Why was silent spring s successful?
Silent Spring was s successful because it alerted the general public t the dangers f DDT. It planted imprtant new ideas in the public mind, such as that spraying chemicals t cntrl insect ppulatins has an impact n ther wildlife, and that the chemicals gt int the fd chain.
2 What is the mral lessn behind “A Fable fr Tmrrw”?
The mral lessn is that financial prfit shuld nt cme at the expense f the envirnment and the creatures living in it.
3 Why did sme peple challenge Carsn’s finding?
Sme peple challenged Carsn’s findings because they were cncerned abut the negative impact, they wuld have n business in the pesticide industry.
4 In what different ways d First Snw and Silent Spring raise peple’s awareness f nature?
First Snw shws the beauty f nature – and in particular the snw – thrugh its wrds and imagery, while Silent Spring describes an unnatural spring withut the beauty f birdsng. They each raise peple’s awareness f nature by highlighting the interplay between nature and human behavir.
Wrk in grups. Write an award speech fr Rachel Carsn.
1 Read the passage again and make ntes abut Rachel Carsn’s cntributins t envirnmental prtectin. Cnsider the fllwing:
her mst influential wrk
what pints she tried t make
difficulties she met with
her persnal qualities
2 Rachel Carsn received her Presidential Medal f Freedm psthumusly in 1980. Read the excerpt frm President Carter’s award speech and nte the language features.
Never silent herself in the face f destructive trends, Rachel Carsn fed a spring f awareness acrss America and beynd. A bilgist with a gentle, clear vice, she welcmed her audiences t her lve f the sea, while with an equally clear determined vice she warned Americans f the dangers human beings themselves pse fr their wn envirnment. Always cncerned, always elquent, she created a tide f envirnmental cnsciusness that has nt ebbed.
3 Write yur wn award speech f abut 100 wrds and share it with the class.
Nw think abut yur perfrmance in grup discussin. Were yu able t make an bjective judgement abut Rachel Carsn?
T present award speech fr Rachel Carsn.