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英语Lesson 1 The Sixth Extinction课堂教学课件ppt
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这是一份英语Lesson 1 The Sixth Extinction课堂教学课件ppt，共33页。PPT课件主要包含了fur skin，ivory ，meat， dinosaur，mammoth，wipe out，species，mass，die out，unusual等内容，欢迎下载使用。
Hw d yu feel abut ur envirnment?Why many wild animals are becming extinct?Why we need t stp destrying ur envirnment?
extinct in 1680
extinct in 1914
extinct in 1960
extinct in 2000
extinct in 1990
Why are these animals becming extinct?
They cannt find enugh fd.
The frest has been destryed. Peple have mved int their natural habitat.
They are killed by pllutin.
They are killed fr bdy parts r fd.
They are killed by climate change.
Hw much d yu knw abut extinctin? Chse the ptin based n yur knwledge.
1 Hw many times up t tday has life n Earth almst died ut? a Once. b Five times. c Mre than 10 times.
2 Abut what percent f all species n Earth became extinct during the mass extinctin knwn as the “Great Dying”? a Less than 10% b Nearly 50% c Mre than 90%
3 What d scientists think will cause the next mass extinctin? a Human activity. b Natural causes. c Unknwn reasns.
Read a text abut extinctin. Then check yur answers.
a set f animals r plants in which the members have similar characteristics t each ther and can breed with each ther t stp existingt destry r remve sb./sth. cmpletely affecting r invlving a large number f peple r thingst say r think that smene r smething is respnsible fr smething baddifferent frm what is usual r nrmal
Read and match.
f a yung bird, fish, insect, etc.) t cme ut f an eggt make sb./sth. return t its frmer state r cnditin t prduce a change in sb./sth.animals r plants which may sn nt exist because there are very few nw alivef many different typest becme less, r t make smething becme less
Meaning f extinctin____________________________________
The number f extinctins that have ccurred s far ______________________________________
Tw ntable extinctins and their cnsequences_____________
Main reasns that cause extinctins_____________
Hw t avid the sixth mass extinctin_____________
Read the text. Cmplete the ntes. Then talk abut the different aspects f extinctins.
entire species are wiped ut
ver 90% f all species that ever lived
Main reasns that cause extinctins________________________________________________________________________________________________________________
Hw t avid the sixth mass extinctin__________________________________________________________________________________________________________________________________________________________________________
vlcanic eruptins, asterids hitting the Earth frm space, changes in sea levels, the decrease f xygen cntent f the sea, glbal warming
change the way we live, including setting up special areas where plants and animals can be prtected; change hw we wrk and travel by using cleaner mre natural surces f energy; imprve ur farming methds
Tw ntable extinctins and their cnsequences________________________________________________________________________________________________________________________________
the third mass extinctin, killed 90% t 96% f all species; the fifth event, which ccurred 66 millin years ag, caused the death f the dinsaurs
Read the text and decide whether these statements are true (T) f false (F). 1. Mre than 98% f all species that ever lived n the earth are extinct. 2. Dinsaurs were wiped ut because f the decrease f the xygen cntent in the “Great Dying”. 3. In 1980, there were nly 250 black rbins left in the wrld. 4. It is nt t late fr us t take actin t d smething t prtect ur planet.
Read again. Answer the questins.
1. What did scientists find ut in 2015?2. Why des the writer think the sixth mass extinctin will cme?
The study fund that hw quickly species die ut due t natural causes, that is, the “backgrund extinctin rate”. They fund that human activity is causing species t die ut 1,000 times faster than nrmal.
Because human activity has negatively affected all ther species n Earth, including animals and plants.
3. Why des the writer believe we'll prbably die ut if 75% f the Earth's species die ut?4. What did peple d in the case study t prtect black rbins? Which claim(s) did the case study supprt in the text?
Because ur wrld and ur lives depended n the balance in nature between animals and plants.
Peple prtected Old Blue’s eggs, helped them t hatch, and tk care f the chicks. Peple are restring their habitats and remving pests like mice and cats frm the islands where they live. The case study shwed that even in desperate situatins, we can d smething t help. In shrt, it’s never t late.
1. Use different clured pens t highlight at least ne example fr each f the fur elements listed belw in different clurs. Then find ut (1) What typical language is used? (2) What text type is this piece f writing? (3) What is its cmmunicative purpse?
facts pinins/predictinsreasns slutins
Facts: ver 90% f all species that ever lived are extinct; the "Great Dying", which killed 90% t 96% f all species; human activity is causing species t die ut 1,000 times faster than nrmal.Reasns: air and water pllutin, frests being destryed, factry farming and verfishing are causing species t die ut; withut frests, we wuld have n air t breathe and withut clean water we wuld be unable t survive.
Opinins/predictins: many scientists say we are nw entering the Earth's sixth mass extinctin; scientists believe that up t three quarters f all species n Earth culd die ut.Slutins: we need t take steps t save endangered species, including setting up special areas where plants and animals can be prtected; we need t change hw we wrk and travel...; we als need t imprve ur farming methds.
(2) What text type is this piece f writing?(3) What is its cmmunicative purpse?
This piece f writing is an expsitin.
Its purpse is t explain what the sixth extinctin is and its effects and call n peple t take actin t prevent it frm happening.
Writing methds
Writing purpse
citing ideas frm experts r authrities giving examples using data
t explain what the sixth extinctin is and its effects t call n peple t take actin t prevent it frm happening
Fcus n writing features
2. What ways f argument des the writer use t cnvince readers? Are yu cnvinced? Why r why nt?
The writer uses ways such as citing ideas frm experts r authrities, giving examples and using data. I believe that if we take actin nw it is nt t late t save ther species frm extinctin. The black rbin was saved frm extinctin when nly five birds remained, s I think it is pssible t save any species if we act right nw.
Use the adjectives and nuns t make meaningful expressins. Then use each expressin t make a sentence. Write the sentences.
entire endangered significant natural mass slar
change resurce extinctin species energy animal
endangered animalsentire speciesnatural resurcessignificant changemass extinctinslar energy
Cmplete the paragraph abut extinctins using the crrect frm f the phrases belw.
die ut be knwn as have affected depend n wipe ut take steps take actin set up take care f
In the last 500 millin years, there have been five mass extinctin events n Earth. In the third event, which 1_____________ the "Great Dying, 90% t 96% f all species 2__________. Of curse, species died ut due t many causes. But nwadays, human activity 3____________ all types f species that we 4__________ fr living.
has affected
We need t 5__________ t avid the sixth mass extinctin. We shuld 6__________ t save endangered animals and plants, and 7__________ special areas t 8___________ them befre the next extinctin cmes that may 9___________ the entire species.
take actin
take care f
Writing features
DataExamplesExperts / scientists
TheSixthExtinctin
Verb phrases
Wrd chices
Write a passage abut “What can we d t save the endangered animals”.
Hw d yu feel abut ur envirnment?Why many wild animals are becming extinct?Why we need t stp destrying ur envirnment?
extinct in 1680
extinct in 1914
extinct in 1960
extinct in 2000
extinct in 1990
Why are these animals becming extinct?
They cannt find enugh fd.
The frest has been destryed. Peple have mved int their natural habitat.
They are killed by pllutin.
They are killed fr bdy parts r fd.
They are killed by climate change.
Hw much d yu knw abut extinctin? Chse the ptin based n yur knwledge.
1 Hw many times up t tday has life n Earth almst died ut? a Once. b Five times. c Mre than 10 times.
2 Abut what percent f all species n Earth became extinct during the mass extinctin knwn as the “Great Dying”? a Less than 10% b Nearly 50% c Mre than 90%
3 What d scientists think will cause the next mass extinctin? a Human activity. b Natural causes. c Unknwn reasns.
Read a text abut extinctin. Then check yur answers.
a set f animals r plants in which the members have similar characteristics t each ther and can breed with each ther t stp existingt destry r remve sb./sth. cmpletely affecting r invlving a large number f peple r thingst say r think that smene r smething is respnsible fr smething baddifferent frm what is usual r nrmal
Read and match.
f a yung bird, fish, insect, etc.) t cme ut f an eggt make sb./sth. return t its frmer state r cnditin t prduce a change in sb./sth.animals r plants which may sn nt exist because there are very few nw alivef many different typest becme less, r t make smething becme less
Meaning f extinctin____________________________________
The number f extinctins that have ccurred s far ______________________________________
Tw ntable extinctins and their cnsequences_____________
Main reasns that cause extinctins_____________
Hw t avid the sixth mass extinctin_____________
Read the text. Cmplete the ntes. Then talk abut the different aspects f extinctins.
entire species are wiped ut
ver 90% f all species that ever lived
Main reasns that cause extinctins________________________________________________________________________________________________________________
Hw t avid the sixth mass extinctin__________________________________________________________________________________________________________________________________________________________________________
vlcanic eruptins, asterids hitting the Earth frm space, changes in sea levels, the decrease f xygen cntent f the sea, glbal warming
change the way we live, including setting up special areas where plants and animals can be prtected; change hw we wrk and travel by using cleaner mre natural surces f energy; imprve ur farming methds
Tw ntable extinctins and their cnsequences________________________________________________________________________________________________________________________________
the third mass extinctin, killed 90% t 96% f all species; the fifth event, which ccurred 66 millin years ag, caused the death f the dinsaurs
Read the text and decide whether these statements are true (T) f false (F). 1. Mre than 98% f all species that ever lived n the earth are extinct. 2. Dinsaurs were wiped ut because f the decrease f the xygen cntent in the “Great Dying”. 3. In 1980, there were nly 250 black rbins left in the wrld. 4. It is nt t late fr us t take actin t d smething t prtect ur planet.
Read again. Answer the questins.
1. What did scientists find ut in 2015?2. Why des the writer think the sixth mass extinctin will cme?
The study fund that hw quickly species die ut due t natural causes, that is, the “backgrund extinctin rate”. They fund that human activity is causing species t die ut 1,000 times faster than nrmal.
Because human activity has negatively affected all ther species n Earth, including animals and plants.
3. Why des the writer believe we'll prbably die ut if 75% f the Earth's species die ut?4. What did peple d in the case study t prtect black rbins? Which claim(s) did the case study supprt in the text?
Because ur wrld and ur lives depended n the balance in nature between animals and plants.
Peple prtected Old Blue’s eggs, helped them t hatch, and tk care f the chicks. Peple are restring their habitats and remving pests like mice and cats frm the islands where they live. The case study shwed that even in desperate situatins, we can d smething t help. In shrt, it’s never t late.
1. Use different clured pens t highlight at least ne example fr each f the fur elements listed belw in different clurs. Then find ut (1) What typical language is used? (2) What text type is this piece f writing? (3) What is its cmmunicative purpse?
facts pinins/predictinsreasns slutins
Facts: ver 90% f all species that ever lived are extinct; the "Great Dying", which killed 90% t 96% f all species; human activity is causing species t die ut 1,000 times faster than nrmal.Reasns: air and water pllutin, frests being destryed, factry farming and verfishing are causing species t die ut; withut frests, we wuld have n air t breathe and withut clean water we wuld be unable t survive.
Opinins/predictins: many scientists say we are nw entering the Earth's sixth mass extinctin; scientists believe that up t three quarters f all species n Earth culd die ut.Slutins: we need t take steps t save endangered species, including setting up special areas where plants and animals can be prtected; we need t change hw we wrk and travel...; we als need t imprve ur farming methds.
(2) What text type is this piece f writing?(3) What is its cmmunicative purpse?
This piece f writing is an expsitin.
Its purpse is t explain what the sixth extinctin is and its effects and call n peple t take actin t prevent it frm happening.
Writing methds
Writing purpse
citing ideas frm experts r authrities giving examples using data
t explain what the sixth extinctin is and its effects t call n peple t take actin t prevent it frm happening
Fcus n writing features
2. What ways f argument des the writer use t cnvince readers? Are yu cnvinced? Why r why nt?
The writer uses ways such as citing ideas frm experts r authrities, giving examples and using data. I believe that if we take actin nw it is nt t late t save ther species frm extinctin. The black rbin was saved frm extinctin when nly five birds remained, s I think it is pssible t save any species if we act right nw.
Use the adjectives and nuns t make meaningful expressins. Then use each expressin t make a sentence. Write the sentences.
entire endangered significant natural mass slar
change resurce extinctin species energy animal
endangered animalsentire speciesnatural resurcessignificant changemass extinctinslar energy
Cmplete the paragraph abut extinctins using the crrect frm f the phrases belw.
die ut be knwn as have affected depend n wipe ut take steps take actin set up take care f
In the last 500 millin years, there have been five mass extinctin events n Earth. In the third event, which 1_____________ the "Great Dying, 90% t 96% f all species 2__________. Of curse, species died ut due t many causes. But nwadays, human activity 3____________ all types f species that we 4__________ fr living.
has affected
We need t 5__________ t avid the sixth mass extinctin. We shuld 6__________ t save endangered animals and plants, and 7__________ special areas t 8___________ them befre the next extinctin cmes that may 9___________ the entire species.
take actin
take care f
Writing features
DataExamplesExperts / scientists
TheSixthExtinctin
Verb phrases
Wrd chices
Write a passage abut “What can we d t save the endangered animals”.
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