高中英语人教版 (2019)选择性必修 第三册Unit 3 Environmental Protection课前预习课件ppt

这是一份高中英语人教版 (2019)选择性必修 第三册Unit 3 Environmental Protection课前预习课件ppt，共18页。PPT课件主要包含了Before，Evidence ，Cause 等内容，欢迎下载使用。
1. What’s happening in the pht?The pht is f a large piece f ice breaking ff a large glacier r ice sheet. 2. Where d yu think this pht was taken?This pht was taken in either the Arctic r Antarctica.3. What des this pht make yu think f?The pht makes me think f the prblem f glbal warming.
Lk and discuss
Pre-reading: Lead in
What happened t the plar bear in the vide?
CLIMATE CHANGE REQUIRES THE WORLD’S ATTENTION
While-Reading
Expsitry essay The authrs smetimes use sme graphs r diagrams in their essays in rder t cnvince their readers. These graphs and diagrams ften cme frm scientific reasearch reprts and ther reliable resurces.
While-reading: read fr the text type
1. What's the type f this text? A. News reprt. B. Bigraphy. C. Expsitry essay. D. Argumentatin.2. What's its purpse?T infrm readers f climate change. T persuade readers t fcus n climate change prblem.
1. What is the graph abut? What infrmatin can yu get frm it?2. What d yu think might have caused the plar bear’s death?
The graph shws the change in the Glbal Surface Temperature between 1920 and 2016. It shws the temperature anmaly（平均气温距平值 ）. The Earth is getting warmer and warmer.
While-reading: make a predictin
Search fr the tpic sentence f each paragraph
While-reading: read fr the structure
cnsequences
Expsitry essay
Para 1 &2 The __________ f dramatic climate change that had an impact n Earth’s eclgy.
Para 3The ________ f the increase in the glbal average surface temperature.
Para 4 The ____________ f the rise in temperature.
Para 5The __________ t reducing greenhuse gas emissins.
Cnsequences
Jigsaw reading: Cause & Effect 1. climate change 2. had t travel greater distances t find fd 3. bears culd nt hunt 4. its dead bdy fund 5. lw sea-ice levels 6. starved t death
climate change → lw sea-ice levels → bears culd nt hunt → had t travel greater distances t find fd → starved t death→ its dead bdy fund
While-reading: read fr the cntent
Greenhuse effect
______ greenhuse effet
________ greenhuse effect
keeping Earth’s climate _____________________
causing Earth’s surface temperature _____________
warm and habitable
t rise quickly
Create a diagram describing hw the greenhuse effect wrks in natural and man-induced situatins. (Para 3)
Functin: brainstrm ideas, map ut prcesses, shw cause and effect relatinships, explain a new idea r cncept, visualise the prblems, demnstrate the creative thinking and prblem-slving ...
The rise in temperature
extreme weather/ natural disasters
extreme rainstrms, heat waves
serius damage, csting human lives, ecnmic lsses
“Carbn ftprint”
Pst-reading: t make a pster
S what will yu d t help?
Students’ wrks