Upload
gordon-haynes
View
219
Download
3
Tags:
Embed Size (px)
Citation preview
energy sources
solar
energy
oilcoalbiomass energy
nuclearenergy
hydro-electric power
wind
power ……
natural gas
wave / tidalenergy
① What are they? What ② are these
buildings made of?
③What’s the use?
greenhouse / glass
A greenhouse is used for_____________, especially during ____ weather.
Turn to Pre-reading 1,
Page 25.
Read & answer.
growing plants
cold
www.themegallery.com
_____ the heat from the
sunkeeps it from _________
____ the air
up
How does a greenhouse work?
trap…from…: keep sth in a place存住来自…的…
traps
escaping
heats
In the atmosphere surrounding the earth
there are gases, which are called
“greenhouse gases”.
methanewater vaporcarbon dioxide
www.themegallery.com
carbon dioxide
Fossil Fuel(矿物燃料 )
coal
oil
gas
global warming● ● ● ● ● ●
produce
What do you think greenhouse gases do?
Greenhouse gases _____ the heat of the sun and therefore ______ the earth.
It is known as __________________.
Nowadays our earth is becoming _____________________.
greenhouse effect
trap
warm
warmer and warmer
Fast Reading
1.1. WhoWho wrote the magazine wrote the magazine article? The article? The namename of the of the magazine?magazine?
2.2. What are the What are the namesnames of of the three scientists the three scientists mentioned in the article?mentioned in the article?
3.3. WhatWhat is mainly discussed is mainly discussed in the passage?in the passage?
www.themegallery.com
SkimmingSkimming★★ 1.1. WhoWho wrote the magazine wrote the magazine
article? The article? The namename of the of the magazine?magazine?
2. What are the 2. What are the namesnames of the of the three scientists mentioned in the three scientists mentioned in the article?article?
SSophie ophie Armstrong.Armstrong.
EEarth Care.arth Care.
DrDr Janice Foster, Charles Keeling, Janice Foster, Charles Keeling, George Hambley.George Hambley.Reading tips: In English, some nouns begin
with a capital letter(大写字母 ), such as names of people and places, titles(标题 ) of magazines, newspapers, stories and books, people’s titles(头衔 ), etc..
www.themegallery.com
3.What is mainly discussed in the passage?3.What is mainly discussed in the passage?A. What has caused the global warming A. What has caused the global warming and whether it matters.and whether it matters.B. What effects of the global warming B. What effects of the global warming will be.will be.C. How serious the global warming could C. How serious the global warming could be.be.D. What the global warming is.D. What the global warming is.
SkimmingSkimming
Reading tips — skim the title and Para 1: Title: THE EARTH IS BECOMING WARMER – BUT DOES IT MATTER?Para 1: … how has this come about and does it matter?
★★★
www.themegallery.com
Part 1.
Part II
Part III
The introduction
The body
The conclusion
Para 1
Para(2-6)
para7
www.themegallery.com
Part 1.(para1)
raise a question
Part II
Para2. who is to blame for the earth’s
Becoming warmer?
www.themegallery.com
Para 3
1.How do human affect the earth warming up?
Human burn fossil fuels like coal, natural
Gas and oil to produce energy.2. What is greenhouse gases?
The byproducts of the process of producing
energy, the most important one is carbon
Dioxide.
www.themegallery.com
Para 4. the levels of carbon dioxide have
increased greatly over the last 100 to 150 years
1.Who made accurate measurements of the
amount of carbon dioxide?
2. How much?
Para 5. How high will the temperature go?
www.themegallery.com
Tip: You can know somebody’s opinion through understanding hisor what he said.
What do Dr. Janice Foster and the scientist George Hambley think about the results of global warming?
Do they agree with one another?
quotations(quotations( 引引言言 ) )
Para 6Para 6
www.themegallery.com
Dr. Janice Foster thinks the effects of global warming could be very serious.George Hambley thinks global warming will be mild with few bad environmental consequences.
They They don't agreedon't agree with each other. with each other.
Para 6Para 6
www.themegallery.com
Does global warming matter?
Positive effects
Negative effects
1. cause the sea level to rise
2. severe storms3. floods4. droughts5. famines6. the spread of
diseases7. disappearance of
species
Positive effects
Negative effects
1. cause the sea level to rise
2. severe storms3. floods4. droughts5. famines6. the spread of
diseases7. disappearance of
species
Positive effects
Negative effects 1. make plants grow
quicker2. crops will
produce more3. a greater range of
animals4. make life better
www.themegallery.com
Idea-sharingIdea-sharing
What will global warming bring to us in your opinion?
I think …In my opinion…It will cause / make …
www.themegallery.com
Assignment Write a short passage about the effects of global warming.
Prepare the language points of this passage and underline the important ones.
After remembering the vocabulary, do the exercises on Page 28.
www.themegallery.com LOGO