高中英语人教版 (2019)选择性必修 第三册Unit 3 Environmental Protection背景图课件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背景图课件ppt，共19页。PPT课件主要包含了Leading in，Reading，Paras12，Para3，Para4，Para5，starvation，Sunlight ，led to，results等内容，欢迎下载使用。

Questin times
Q1. What’s happening in the pht?Q2. Where d yu think this pht was taken?Q3. What des this pht make yu think f?
Q. What happened t the plar bear in the vide?
Q1. What d yu think might have caused the plar bear’s death?Q2. What is the graph abut? What infrmatin can yu get frm it?
glbal temperature change
Read the title and raise questins.
What d yu want t knw based n the title and pictures?
Read fr the text type
Q1. What's the type f this text? A. News reprt. B. Bigraphy. C. Expsitry essay. D. 's its purpse? A. T infrm readers f climate change. B. T persuade readers t fcus n climate change prblem.
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 research reprts and ther reliable resurces.
Read fr structure
Find ut the tpic sentence f each paragraph.
Expsitry Essay
Part 1 prblem
Q. What evidence f climate change can yu find in the first paragraph?
a warming cean and atmspheremelting icerising sea levels
climate change
lnger fd-seeking travel
lw sea-ice level
The fllwing reasns accunt fr the death f the plar bear, with ne influencing anther. Read paragraph 2 and put them in a crrect lgical rder.
What is the rt cause?
Cause and effect
Part 2 cause
Q. Hw the greenhuse effect wrks in natural and man-made situatins?
Read paragraph 3 and create a diagram describing hw the greenhuse effect wrks.
Heat released back int space
Heat reflected back t Earth’s surface
Reflected sunlight
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.
Part 3 cnsequence
Q1. What are the cnsequences f the glbal temperature rise? Q2. Why did the authr mentin the climate scientists’ warning?
The rise in the temperature
extreme weather & natural disasters
serius damage, csting human lives
extreme rainstrms, heatwaves
Because glbal warming needs everyne’s attentin and it is essential that we take apprpriate actins.
Part 4 slutins
What will yu d t help?