lesson 1 global warming lesson 1 global warming. look at the pictures and what do you know about...
TRANSCRIPT
Lesson 1
Global Warming
Lesson 1
Global Warming
Look at the pictures and what do you
know about global warming.
What effect will global warming have on the sea and the living things in the sea?What effect will global warming have on the sea and the living things in the sea?
What will happen with global warming?
Will global warming affect the life of
North Polar Bear ?
What will happen to penguins because o
f global warming ?
Para 1
Para 2
Para 3
Para 4
Para 5
What can we do to reduce global wa
rming What is global warming and how it
works Reasons and its effects Draw readers’ attention to the topic
by asking questions---introducing the consequence of global warming
Listen to the tape of the text and matchthe heads with the paragraphs.
1) What is global warming?
Global warming is an average increase
in the Earth’s atmosphere.
2) What human activities are causing glo
bal warming ?
Industry, agriculture, transportation,
cutting down of trees and the burning
of fuels are causing global warming.
3) By how much has the global average temperature increased in the last 100 years?
By 1ºF (One degree Fahrenheit) 4) Are greenhouse gases necessary for lif
e on Earth? Yes, they are. Because they trap heat i
n the atmosphere of the Earth. Otherwise the Earth would be cold and unsuitable for life.
5) How can we help solve the problem of global warming?
We can make small changes like taking public transport, recycling, using low-flow shower heads, and buying energy-efficient light bulbs to help stop global warming.
Fill in the blanks about the text.
Global warming means an average incre
ase in the Earth’s temperature which ca
uses climate change in turn. Scientists t
hink it is ______ ______ that cause glob
al warming, especially gases from _____
___ and vehicles which speed up global
warming.
factories
human beings
They also think global warming is one of
the biggest environmental problems in th
e 21st century.
The Earth’s temperature is controlled by
__________ _____like carbon dioxide w
hich ___ heat from the sun in the Earth’s
atmosphere. Many experts believe global
warming is mainly caused
greenhouse gases
trap
by human ________. Over the last 100 ye
ars , the global average temperature has i
ncreased _______ and if human beings co
ntinue to pump __________ gases into th
e Earth’s atmosphere, the global warmin
g will cause dramatic climate changes lik
e more frequent floods, _________ and
by 1°F
greenhouse
heat waves
activities
Droughts. There are some serious disea
ses. Sea level will be ______ , floating co
astal area , negatively affecting ______
and forestry.
So governments all over the world s
hould reduce the ______of greenhouse
gases. We individuals should pay _____
___ to what we are doing, even
raised
fishing
release
attention
small changes like ______ public transpo
rt, ________, using low-flow __________
__, buying energy-efficient ___________
using recycled paper or ___________ lig
hts can have __________ on the future of
the Earth .
taking
recycling
shower heads
light bulbs
switching off great effect
Language points
Scientists have reported that huma
n beings are causing changes in th
e Earth’s climate---something ____
_____ seen as _________________.
previously
beyond our control
previously in the past
beyond 在那边 / 超出…的范围This book on literature is beyond
our reach.
This bicycle is beyond repair.
他的忠诚是毋庸置疑的 .
His honesty is beyond question.
They claim that the gases pumped into
the Earth’s atmosphere by our factories
and vehicles have been speeding up the
process of global warming and thereb
y affecting our climate.
What is the function of the underlined
part “pumped ”?
It is used as attributive ( 定语 ).
speed up 反义 : slow down
affect have a bad effect on sth.
Global warming ________ an average
increase in the Earth’s temperature th
at, in turn, _______ climate change.
refers to
leads to
refer to 提到 , 谈到
Don’t worry. I don’t think the manag
er referred to you.
Promise me not to refer to the matter
again.
lead to
1. 通向 This road leads to the library.
2. lead to=result in=bring about
The fight led to their divorce.
increase …by … 增加了… / increase
…to… 增加到…The temperature of the room is incre
ased by 12ºC, that is, the temperatur
e of the room is increased to 29ºC.
Cf : reduce …by…/ reduce…to… ris
e by / rise to
insist:
(1) urge in a forcible manner 坚决主张 , 坚决要求
e.g. He insisted I (should) go with the
m. =He insisted on my going with
them.
(1) allow to go; set free 释放 When coal is burning, it will release a
lot of carbon dioxide into the atmosphere.
(2) allow (news/films )to to be known or published 发布 , 发行
The news has been released.
release:
(1) the property of things which can
be measured, e.g. size, weight, n
umber. 物质的属性 , 量e.g. I prefer quality to quantity.
quantity:
(2) amount, sum or number 数量e.g. We’ve had quantities of rain this su
mmer. 今年夏天雨下得很多。
He buys things in quantity/ in large
quantities.
他总是大宗采购东西。
pin sth. on somebody 把某事归罪于某人汤姆是无辜的 , 他们只是想把责任推给他。
Tom is innocent. They just tried to
pin the blame on him.
play one’s part 参与 , 起作用Women play an important part in
the society.
add up 加起来= total up / add u
p to =total up to 加起来为…He added up the numbers and th
e numbers added up to 233.
Use the expressions in the box in the
correct form to complete the sentences.
beyond our control/ pump into/
as a result of/ in huge quantities/
refer to/ speed up
Exercises
1. Water was ___________ the fish pond
from the river.
2. We all need to ________ to finish in ti
me!
3. There is nothing more we can do. The
situation is now ________________.
pumped into
speed up
beyond our control
4. ____________ the accident, she is no
w afraid of water.
5. The scientist _________ global warm
ing at least three times in his speech.
6. The factory was producing greenhou
se gases ________________ .
As a result of
referred to
in huge quantities
Grammar
1. Human beings are causing changes
in the Earth’s climate.
to report that
What verbs are used in the text to rep
ort these statements ?
2. Gases pumped into the Earth’s atm
osphere have been speeding up the
process of global warming.
to claim that
3. Global warming could be one of the
biggest environmental problems fac
ing the 21st century.
to believe that
4. Global warming is mostly due to hu
man activities.
to insist that
5. Global warming will cause terrible c
limate changes including more frequ
ent floods, heat waves, and droughts.
to warn that
Ex 7: Look at these sentences from the
text and explain why the underlined v
erbs are not the same tense as the repo
rting verbs.
1. Recent reports warned that global w
arming will cause terrible climate ch
anges.
2. Scientists found that the temperature
of the Earth is controlled by greenho
use gases.
Answer :
1) because it is in the future
2) because it is a general truth
Ex 8. Match the sentences with appropr
iate reporting verbs from the list. Then
write the reported sentences.
admit/report/forbid/ask/invite/order
/suggest/threaten
1. We’ll close credit lines if you don’t
reduce the amount of carbon dioxi
de you produce.
2. OK, you’re right, some poisonous c
hemicals did escape into the atmosp
here.
3. Why don’t you drop in tonight ahea
d of your meeting?
4. Stand up immediately!
5. You can’t use the dictionaries durin
g the test.
6. Shall we have pancakes with honey?
7. Is the bus service running according
to the timetable today?
8. The fire has luckily caused no loss of
life.
1. They threatened to close our credit
lines if we don’t reduce the amout o
f carbon dioxide we produce.
2. They admitted that some poisonous
chemicals had escaped into the atm
osphere.
The answers:
3. He/She/ They invited me to drop in t
onight ahead of my meeting.
4. He/She/They ordered me to stand up
immediately.
5. He/She/They forbade me to use our d
ictionaries during the test.
6. He/She/They suggested having/that
we should have pancakes with honey.
7. I/He/She/They/We asked if the bus se
rvice was running according to the ti
metable today.
8. They reported that the fire had lucki
ly caused no loss of life.