高中Unit 6 Nature in words优秀ppt课件

这是一份高中Unit 6 Nature in words优秀ppt课件，共24页。PPT课件主要包含了YYDS，XSWL， DDT等内容，欢迎下载使用。

Understand the infrmatin cnveyed by Silent Spring and its inspiratin t the sciety;On the basis f understanding the text cntent, students can feel the theme f the article, deepen the understanding f the significance f the unit theme.Think abut the impact f human activities n the natural envirnment, and imprve the awareness f nature prtectin.Write and deliver an acceptable speech.
Activity 1 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(疟疾) cntrl.
infrmatin+graphic(图表)
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is sprayed nt plants
1 Hw des DDT reach the human bdy in the fd chain?
leaks thrugh the sil and int rivers and lakes
is absrbed by the plants
is cnsumed by animals
cntaminates fish
2 What harm des DDT cause?
DDT is highly pisnus t living rganism, including humans.
a bk that led t the banning f DDT
Rachel Carsn, writer, scientist, and eclgist, grew up simply in the rural river twn f Springdale, Pennsylvania. 
1941: Under the Sea-Wind 1951: The Sea Arund Us 1955: The Edge f the Sea 1962: Silent Spring
Activity 2 Read the bk review n Silent Spring. Predict what will be mentined in the passage.
Bk Review: an article in a newspaper r magazine giving pinin n a bk.
the authr, year f publicatin, theme ，main idea,reasn fr publicatin
Nw read the passage and check yur predictin.
1. What’s the tpic f Silent Spring? A. Lve, hpe, human.B. Envirnment, life, human. C. Nature, lve, life.D. Envirnment, lve, human.2. Wh did Carsn mainly get criticism frm?A. Mst scientists. B. Chemists.C. Marine bilgists. D. Pesticide industry reasn why the authr enjys the bk is that . A. the quality f her arguments is strng B. her bk has changed the wrld C. her writing is beautiful and elegant D. she describes a beautiful silent spring
Chse the best answers.
Are yur predictins crrect?
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 research
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
1. Why was silent spring s successful?
It alerted the general public t the dangers f DDT.
It cuased a great increase in envirnmental awareness. Its impact was immediate and far-
2. Why did sme peple challenge Carsn’s findings?
Because they were cncerned abut the negative impact n their pesticide industry. It wuld harm their interst.
Rachel Carsn received her Presidential Medal f Freedm psthumusly in 1980.
Read the excerpt frm President Carter’s award speech and write an acceptance speech fr Rachel Carsn.
I accept the prize with prfund gratitude.I can't tell yu hw hnured I am t receive this award and t be cunted amng the many distinguished recipients wh have received it in the past.Thank yu, Mr President, members f the Cmmittee. I am very happy t be here with yu tday t receive I feel hnured, humbled and deeply mved that yu shuld give this imprtant prize t me as I am n ne special. But I believe the prize is a recgnitin f the true value f my effrts, lve, cmpassin which I try t practice.I thank yu all fr this amazing award tnight. Let us nt take this planet fr granted. I d nt take tnight fr granted. Thank yu s very much.
useful expressins