人教版 (2019)选择性必修 第三册Unit 3 Environmental Protection教课内容ppt课件

这是一份人教版 (2019)选择性必修 第三册Unit 3 Environmental Protection教课内容ppt课件，共32页。PPT课件主要包含了Para 1，Para 2，Part1 ，Para 3，Part 2 ，man-made ，natural，Para 4，Part 3 ，Para 5等内容，欢迎下载使用。
T discuss climate changeT learn t identify the style f this text and infer the writer’s purpse T learn t draw a diagramT think abut hw we can d t deal with climate change
Frustratin is grwing amng many residents n Australia's east cast ver slw relief and recvery effrts fllwing the wrst flding n recrd, which has left at least 18 peple dead, thusands hmeless and many mre missing. Twns and cities in nrthern New Suth Wales, the cuntry's mst ppulus state, and the sutheast crner f the neighbring state f Queensland have been inundated by muddy brwn water. Brisbane, the capital f Queensland, is experiencing severe flding fr the third time since 1974.
What causes the climate change?What are the slutins t stp climate change?
Read fr genre
1. What kind f reading passage is it?
2. What is authr’s purpse?
T aruse ur awareness f the prblem f the rise f temperature and taking prper actins t address the glbal warming.
Expsitry writing.
Use a diagram r graph t describe a prcess in a clearer way.
The authr tries t explain an issue in a scientific and bjective way.
Climate change requires the wrld’s attentin
What is the graph abut? What infrmatin yu get frm it?What might be the stry behind it?
The graph shws the change in the Glbal Surface Temperature between 1920 and 2016. It shws the temperature anmaly, which shws hw much the temperature has risen .
The stry is that the plar bear starved t death because it culd nt find enugh t eat.
Read fr the structure and main idea
Main idea:The evidence f a dramatic change that had an impact n Earth’s eclgy.
What evidence f climate change can yu find?
Main idea:The cause f the increase in the glbal average surface temperature.
Greenhuse Effect
Heat frm the sun enters the atmsphere and warms Earth’s surface as shrt-wave radiatin.
keeping Earth's climate warm and habitable
Mre heat energy is trapped in the atmsphere and causes Earth's surface temperature t rise quickly.
Main idea:The cnsequences f the rise in temperature.
Cnsequences
What cnsequences f the glbal temperature rise?
Main idea:The slutins t reducing greenhuse gas emissins.
The structure f this expsitry writing
The evidence
The cnsequences
The slutins
Extreme weather
Natural disasters
Individuals
Read fr thinking
Read fr thinking (P2)
Why did the writer write abut the plar bear?
Because it shwed ne f the effects f rising temperatures due t climate change.
Read fr thinking (P3)
Why is the “natural” greenhuse effect imprtant and necessary?
Because it warms the Earth’s surface and keeps it habitable.
Draw a diagram t shw hw the greenhuse effect wrks
Read fr thinking (P4)
Why did the authr mentin the climate scientists’ warning?
Because it is essential that we take actin and s it needs t be brught t everyne’s attentin.
What plicies can the gvernment make t reduce greenhuse gas emissins?Hw can individual reduce carbn ftprint?Why is a questin left at the end?
Read fr thinking（P5）
Read fr thinking（P1\P5）
What is the authr’s purpse f writing this text?
The purpse is t infrm the reader and inspire them t d whatever they can t deal with this prblem.
Cmplex sentences