人教版（新课标 ) 选修六 Unit 4 Global warming Reading 课件(55张ppt)

(共55张PPT)
The image shows a horribly thin female polar bear dragging her injured leg on a melting piece of ice in the Norwegian archipelago of Svalbard.
A shocking photo has stormed global social media, triggering concerns over global warming that would pose a further threat to the Arctic species.
M6U4 Global warming
THE EARTH IS BECOMING WARMER
----BUT DOES IT MATTER
Explore the cause of global warming.
Learn different attitudes towards global warming.
Understand some difficult sentences and language points in the passage.
Part 1 Para. an i___________ of global warming
Part 2 Para. the c_________ of global warming
Part 3 Para. two different a_______ towards global warming
Part 4 Para. q_______ left for readers
Go through the text and think about how to divide the whole passage according to the main idea.
introduction
causes
attitudes
questions
1
2-4
5
6
How has this global warming come about
There is no doubt that the earth is becoming warmer (see Graph 1) and that it is human activity that has caused this global warming rather than a random but natural phenomenon.
How has human activity caused the global warming
The more CO2, the higher temperature.
All scientists subscribe to the view that the increase in the earth's temperature is due to the burning of fossil fuels like coal, natural gas and oil to produce energy. Some byproducts of this process are called "greenhouse" gases, the most important one of which is carbon dioxide.
Why does more CO2 cause higher temperature
Greenhouse gases can _______ heat from the sun and therefore __________ the earth, which is known as ________ _________.
trap
warm
greenhouse effect
Is “greenhouse effect” a result of human activity Is it beneficial or harmful to us
Dr Janice Foster explains: "There is a natural phenomenon that scientists call the 'greenhouse effect'. This is when small amounts of gases in the atmosphere, like carbon dioxide, methane and water vapour, trap heat from the sun and therefore warm the earth. Without the greenhouse effect', the earth would be about thirty-three degrees Celsius cooler than it is. So, we need those gases.
The problem begins when we add huge quantities of extra carbon dioxide into the atmosphere. It means that more heat energy tends to be trapped in the atmosphere causing the global temperature to go up.
Dr Janice Foster's prediction
Over the next 100 years the amount of warming could be as low as 1 to 1.5 degrees Celsius, but it could be as high as 5 degrees.
That probably does not seem much to you or me, but it is a rapid increase when compared to other natural changes.
The Intergovernmental Panel on Climate Change
政府间气候变化专门委员会
An IPCC special report on the impacts of global warming of 1.5℃ above pre-industrial levels and related global greenhouse gas emission pathways, in the context of strengthening the global response to the threat of limate change, sustainable development, and efforts to eradicate poverty.
2015 Paris Agreement
Two different attitudes towards global warming
On the one hand, Dr Foster thinks that any trend in which the temperature increases by 5 degrees would lead to a catastrophe. She says, “We can't predict the cliamte well enough to know what to expect, but it could be very serious.”Others who agree with her think there may be a rise of several metres in the sea level, or predict severe storms, floods, droughts, famines, the spread of diseases and the disappearance of species. On the other hand, there are those, like George Hambley, who are opposed to this view and believe that we should not worry about high levels of carbon dioxide in the air. They predict that any warming will be mild with few bad environmental consequences. In fact, Hambley states, plants grow quicker; crops will produce more; it will encourage a greater range of animals---- all of which will make life for human beings better.
On the one hand, Dr Foster thinks that any trend in which the temperature increases by 5 degrees would lead to a catastrophe. She says, “We can't predict the cliamte well enough to know what to expect, but it could be very serious.”Others who agree with her think there may be a rise of several metres in the sea level, or predict severe storms, floods, droughts, famines, the spread of diseases and the disappearance of species. On the other hand, there are those, like George Hambley, who are opposed to this view and believe that we should not worry about high levels of carbon dioxide in the air. They predict that any warming will be mild with few bad environmental consequences. In fact, Hambley states, plants grow quicker; crops will produce more; it will encourage a greater range of animals---- all of which will make life for human beings better.
On the one hand, Dr Foster thinks that any trend in which the temperature increases by 5 degrees would lead to a catastrophe. She says, “We can't predict the cliamte well enough to know what to expect, but it could be very serious.”Others who agree with her think there may be a rise of several metres in the sea level, or predict severe storms, floods, droughts, famines, the spread of diseases and the disappearance of species. On the other hand, there are those, like George Hambley, who are opposed to this view and believe that we should not worry about high levels of carbon dioxide in the air. They predict that any warming will be mild with few bad environmental consequences. In fact, Hambley states, plants grow quicker; crops will produce more; it will encourage a greater range of animals---- all of which will make life for human beings better.
Greenhouse gases continue to build up in the atmosphere. Even if we start reducing the amount of carbon dioxide and other greenhouse gases, the climate is going to keep on warming for decades or centuries. No one knows the effects of global warming. Does that mean we should do nothing Or, are the risks too great
Limiting global warming to 1.5℃ would require rapid, far-reaching and unprecedented changes in all aspects of society.
We would need to cut global emissions 45 percent by 2030 (compared to 2010 levels), and bring them to net zero by 2050.
Renewable energies, such as wind, solar and hydro power, would have to surge by 60 percent from 2020 levels by 2050 to stay below 1.5℃ “while primary energy from coal decreases by two-thirds.
reforestation
negative emissions
/ carbon capture and storage
Engineers can figure out how to remove carbon dioxide from the atmosphere, but it's a lot harder to get rid of Trump — or to get India or Brazil to prioritize climate over everything else.
We still have a long way to go!
Language Points Part I
useful phrases in the passage
1. 一个快速增长
2. 与...比较
3. 发生
4. 毫无疑问
5. 一种随意的自然现象
6.赞同
7. 由于、因为
8.大量的
9. 这意味着
10. 倾向于做某事
11. 被困于
12. 上升
13. 导致
14. 反对
15. 一系列
16. 累积
17. 即使
18. 继续做某事
1. In order to iprove her daughter's English, she subscribed ______ English Weekly.
2. People who go through the hardship of training tend ____________ (improve) their performance.
to
订阅；同意；捐赠；签署
to improve
1. Sofia was in the bedroom tending to her son.
2. Charles tends towards obesity.
照顾
有...的趋势
3.Her failure in her first shooting match resulted _____ her nervousness.
4. At first, her father was opposed _____ her studying abroad, but finally he agreed.
in
lead to/ bring about/ as a result;
result from/ as a result of;
to
It seems that you need more time to learn a language by reading and listening, as opposed to learning about grammar rules.
（表示对比）而，相对于
5. As ____ consequence of oversleeping this morning, I was late for school.
6. I glanced ________ the hall and found many familiar faces among the audience.
a
as a result of/ in consequence of;
around
1) Can we just ____ ____ ____ ___ your products
2) He glanced ________ the newspaper.
3) There is, however, a cure so simple that it seems, _____ first glance, ridiculous: if you don't feel happy, pretend to be happy!
take a glance at
through
at
If you damage the building, you must be ready to take the consequences.
7. He has a wide range of interests, ________ (range) from playing chess to swimming.
8. How did it come about ______ Jim failed in the job interview He had been well prepared.
ranging
range between...and...
a (wide/ full) range of
that
1) I came _______ an old friend.
2) I hope you can come ____ _____ a better plan than this.
3) ____ ____ ___ ___ ____he had left his keys in the office.
4) In 2003, SARS _____ ______ in the mainland of China.
across
up with
It occurred to him that
broke out
9. It ________ (state) that more than 30 people were killed the accident.
10. Over the last few years, however, scientists ___________ (make) dramatic advances in producing electricity.
is stated
in a ... state of
have made
1. Large quantities of money has been sent to the earthquake victims.
2. As the price going up, parents are not able to afford many goods, even the necessities.
As---With 或者 going --- goes
3. Her coach encouraged her throughout the marathon race to keep on run.
have
4. In the face of failure, it is the most important to keep up good state of mind.
5. The engineers are so busy that they have no time for outdoor sports activities, as if they have the interest.
running
/a\
even
6. I don't blame them, because all this resulted in our carelessness.
from
7. Comparing with her achievements, her shortcomings are, after all, only secondary.
Compared
1)This school compares with the best in the country.
2) Young people are often compared to the rising sun.
10. He wrote many children's books, nearly half of them were published in the 1990s.
9. It's not doing things we like, but liking things we have to do that make life happy.
8. There is still some doubt that the autumn sports meeting will be held on Friday in our school.
whether
makes
which
/and\ 或
changing
opposing
1. I would oppose _________ (change) the law.
2. With so many kinds of magazines to choose from, I felt at a loss which _____________ (subscribe) to.
3. Laziness works hand in hand with a lack of motivation and a __________ (tend) to put off doing things.
4. Success results _______ hard work.
to subscribe
subscription
tendency
from
6. You may cancel at any time during your ___________ (subscribe) and get all your money back.
5. The ___________ (oppose) armies were preparing for the war.
7. Recently many students in China focus too much on their academic learning and ignore playing and communicating, which _____________ (consequence) influences their character development.
8. There is an old Spanish proverb which ______ (state), “Tomorrow is often the busiest day of the week.”
9. The terrorists fired on the crowd ____ random.
consequently
by
states
10. The price has gone up ____ 20%.
at
11. He hopes that his business will grow ______ (steady).
steadily
Language Points Part 2
useful phrases in the passage
1. 代表
2. 对...有影响
3. 有影响，有关系
4. 忍受
5. 是...的结果，由于
6. 只要
7. 对...很随意
8. 等等
9. 如果环境允许的话
10. 回收再利用的材料
11. 节约能源的
12. 焕发精神
1. The bicycle ad team, which has come into _________ (exist) in recent years, is a unique scene along the street.
2. The invention of the typewriter made great ____________ (contribute) to communication and printing.
existence
The ________ (exist) system needs to be changed.
contributions
make a contribution to
contribute to
contribute... to...
contributor n. 捐款人，撰稿人，促成物
导致
把...捐献给
existing
3. My income is rather changeable, but I earn $ 50 a day ____ average.
4. On _____ whole the warming of the earth is a phenomenon that causes great concern.
on
1)It takes ____ average of ten weeks for a house sale to be completed.
2) Jennifer's work is _______ average, while her younger sister's is very much below it.
the
Is the collection going to be divided up or sold ____ __ _____
as a whole
an
above
5. The president can't be here today, so I'm going to speak ____ behalf of him.
6. I can't put up ______ her any more----she never stops complaining.
on
on one's behalf
with
1) Please put those tools ______ after you finish the work.
2) The students put ________ some new proposals.
3) We are trying to put _____ some money monthly for our vacation.
4) The firefighters soon put _____ the fire.
5) The concert was put ____ because the main singer was ill.
away
forward
aside
out
off
7. It counts little who does it _______ long as it is done, for you see, we are short of hands now.
8. He isn't a reliable man. __________ no circumstances should you lend him any money.
as/ so
引导条件状语从句
In/ Under
on condition that
provided/ providing that
if/ only if
so
9. Is anybody feeling cold If ____, let's close the windows.
10. On Monday mornings it usually takes me an hour __________ (drive) to work although the actual distance is only 20 miles.
1. Jim hopes to go to his friend's birthday party, but his mother will not allow him.
2. A woman saw him crying and telling him to wait outside the shop.
3. What he did last year has contributed to encourage foreign
investment in China.
to drive
to
told
encouraging
4. Talk with your family and friends about global warming and
tell them that you have learned.
5. You are waiting at a wrong place. It is at the hotel where the coach picks up tourists.
6. Top players must have excellent ball control, but it's not just what they do with their feet that count.
7. In winter, a hot bath is refreshed after a day's hard work.
8. With little sleep and hardly any break, so he works from
morning till night.
what
that
counts
refreshing
9. There are not many teachers who are strongly advocates of traditional methods in English.
10. Circumstances permit, he'll go abroad to study after graduation from college.
strong
permitting
vt. 提倡，主张
advocate (sb) doing sth
advocate that... (should) do...
n. 拥护者 of/ for
语法填空
1. covered 2. Without 3. warming 4. have begun 5. animals
6. obviously 7. but 8. medical 9. that 10. lies
短文改错
第一行：had去掉 第二行：volunteers to---for
第三行：excited what---that/which 第四行： here----there
第五行：taking---taken 第六行：they---we
第七行：happily----happy gave the children
综合提升
一、1. fuel vt. 增强，刺激 2. flood （n. vt. vi） 3. mild 4. state 5. range 6. individual 7. outer
二、1. phenomena 2. show 3. of
4. There is a growing tendency among employers to employ casual staff.
5. going 6. among 7. has
He is wearing a pair of casual shoes.
I met one of my old classmates casually in the hotel.
She is casual about winning the prize.
三、1. the---an 2. growth 3. consumed 4. a去掉
四、1. glanced at 2. strongly opposed 3. stated
4. It's the headmaster who
五、1. electrical 2. electric 3. electrical
六、1. at random 2. a flood of/ a large quantity of
3. beyond our range 4. refresh themselves 5. At first glance
6. on average/ an average of 7. Under the circumstances/ In this
case 8. put up with
七、1. I wonder how it came about that she was two hours late on a short trip.
2. I tend to wear casual clothes at/ on the weekend. I feel more comfortable in this way.
3. It's a common phenomenon nowadays that parents do everything for their children. As a consequence, children cannot learn to depend
on themselves.
4. Too many cars will result in range of problems, such as serious environmental pollution and more traffic accidents.
5. On the whole, those who know how to put up with others can naturally lead a happy life.
6. Never give up. So/ As long as you have a dream, keep on trying and you will make it.
基础训练一
一、1. phenomenon 2. per 3. data 4. consequence 5. steady
二、1. 可再生的 2. 温室效应；摄氏度 3. 华氏度 4. 图表
5. 随机的/ 随意的 6. 赞成；矿物燃料 7. 副产品 8. 趋势
9. 大灾难 10. 洪水 11. 旱灾 12. 饥荒 13. 轻度的/ 轻微的
三、1. use 2. cause 3. looked quickly
四、1. in 2. measurements 3. environmental
五、1. came about/ happened/ occurred 2. goes up/ increases
3. Even if/ though 4. keep on 5. a large/ huge quantity of rain
基础训练一
六、1. Readers tend to share articles that are exciting or funny.
2. His parents are opposed to the marriage.
3. He stated that Olympians had broght joy to people across the world.
4. College students are of many different ages and come from a wide range of social, cultural and economic backgrounds.
基础训练二
一、1. widespread/ wide 2. average 3. pollution 4. contribution
5. slogan
二、1. 经济的 2. 公顷 3. 生存 4. 电器 5. 随意的/ 漫不经心的
6. 机动车 7. 罐/ 听 8. 微波炉 9. 使（精神）振作 10. 祈使句
11. 核能 12. 主张 13. 外太空
三、1. trend 2. tolerate 3. made a promise to go
四、1. growth 2. educator 3. circumstances 4. heading
5. disagreement
五、1. On the whole 2. and so on
3. give/ make a presentation of
基础训练一
六、1. I am doing a project on behalf of my school about global warming.
2. Together, individuals can make a difference.
3. One's life has value as / so long as one brings value to the life of others.