高中英语Unit 3 Environmental Protection教课内容ppt课件

这是一份高中英语Unit 3 Environmental Protection教课内容ppt课件，共27页。PPT课件主要包含了 Homework等内容，欢迎下载使用。

Teaching bjectives:
By the end f this perid, yu will be able t
1. knw abut the climate change and summarize the main idea f each paragraph;2. learn abut the “greenhuse effect” and create a diagram describing hw it wrks; 3. analyse the cnsequences f climate change and enhance the awareness f envirnmental prtectin;4. vice their persnal pinins abut hw t deal with climate change.
Where d yu think this pht was taken?What is happening in the pht?What des this pht make yu think f?
Discuss the frnt page
I think this pht was taken in either the Arctic r Antarctica, as thse places have large ice sheets like this.The iceberg is melting and breaking up.This pht make me think f the earth is becming warmer----glbal warming, which causes great damage.
glbal warming
CLIMATE CHANGE REQUIRES THE WORLD’S ATTENTION
Predictin—— What will be talked abut in the passage?
What is the graph abut? What infrmatin can yu get frm it?
Guess what might happen t the plar bear in the pht? Hw did it die?
The temperature f the glbal surface rse abut 1.2 ℃ frm 1920 t 2016. The earth is becming warmer and warmer.
skin and bnes
starved t death
An envirnmental magazine
1. Match the main idea with each paragraph.
While-reading Activity1:Reading fr the main idea and the structure
2. Figure ut the structure
Activity 2: Reading fr details
evidence: _________________ ____________________
The glbal climate has changed. The Earth is getting warmer and warmer.
A warming cean and atmsphere melting ice and rising sea levels
1. What happened t the Earth?
1. What happened :________________________________
2. Hw:__________________________________________ ________________________________________________ ________________________________________________
3. Why did the writer write abut the plar bear?
The plar bear in the pht died f starvatin.
Lw sea-ice levels caused by climate change made the bear culdn’t hunt seals as befre. It had t travel greater distances in rder t find fd.
The writer wrte abut it because it shwed ne f the effects f rising temperatures due t climate change.
The seriusness f glbal warming is better illustrated by a real case.
Para. 3—— the reasns causing the increase in temperature
It is the “greenhuse effect”, including the “natural” and the “man-made” greenhuse effect.
1. What caused the increase in the glbal average surface temperature?2. Create a diagram t describe hw the greenhuse effect wrks.
Activity 3: Read paragraph 3 carefully and create a diagram describing hw the greenhuse effect wrks.
Draw a diagram Diagrams are very useful tls that can be used t brainstrm ideas, map ut prcesses, shw cause and effect relatinships, explain a new idea r cncept, and s n. When yu read an essay abut scientific issues, yu can try drawing a diagram, which will nt nly allw yu t visualise the prblems mre clearly but als can help demnstrate yur creative thinking and prblem-slving.
Activity3: Create a diagram
heat released back int space
extra greenhuse gas emissins by burning fssil fuels
effect
sunlight
atmsphere:including greenhuse gases
effect
“natural” greenhuse
heat reflected t earth
“man-made” greenhuse
Para.4 —— the serius cnsequences
Activity 4: What are the results f the rise in temperature?
extreme weather natural disasters
damage human lives
Human will pay ____________
the rise in temperature
________________and _______________wrldwise
serius__________cst ____________
a higher price
ecnmic lss death
Para.5 —— What we shuld d ?
Gvernments:1. ___________________2. ______________________________ ______________________________ *Individuals: 1. _________________________________________ ___________________________________________ 2.__________________________________________________________________
Make plicies Take apprpriate actins and measures t reduce greenhuse gas emissins.
Reduce ur “carbn ftprint” by restricting the amunt f carbn dixide ur lifestyles prduce.
Seize every pprtunity t educate everyne abut glbal warming.
1. Wh d yu think shuld take respnsibility fr dealing with climate change? What are yur reasns？( individuals, large business cmpanies r gvernments)
Critical thinking —— respnsibility and measures
2. “We individuals can als reduce ur ‘carbn ftprint’ by restricting the amunt f carbn dixide ur lifestyles prduce”. What can we d t live a lw-carbn lifestyle?
Creative thinking —— respnsibility and measures
Take the stairs instead f elevatr
What yu shuld d t d t tackle it?
Dn't litter
G t schl by bike instead f by car/bus
Turn ff the lights when leavingCver the pt while cking
Use handkerchief instead f facial tissue
Use basket r envirnmental basket bag instead f plastic bag;buy thins ecnmic with energy; use recycle gds r items.
watch less TV
plant mre trees
eat mre vegetable
Less tissue, regain handkerchief
frest prtectin
Turn ff light, switch, pull the plug if nt use.
plant trees
walk r cycle t wrk
Hw t live a lw-carbn lifestyle
Finish what yu have learned in the last clumn f KWL chart.