unit4 lesson13[下学期]

课件22张PPT。Lesson 13
Unit 4Screen/TVvideophonefax machinetransportLeading-in
Imagination and Discussion:
1.“ What will the world be like in the next
fifty years,eg.in communication,
transportation,technology,daily lives,
environment , education,etc?”
2. “What part do you think the Internet will
play in our future life?” Tomorrow’s World
The Future of Cyberspace
Match the new words with their
definitions:
cybercriminal:
hacker:
cyberterrorist:
the Net:
virtual reality:
e-mail:Do you still remember these words?
androids:
genetic engineering:
global warming:
virtual reality:
affect:
connect:
government:
obvious:
destroy:
attack:
crash: robots

have (bad) effect on
~ sth with/to…(=link)
It is ~ that he is mistaken.
damage, destruct
We attacked the enemy.
air crash offer:
explosion:
postal:
disappear:
increase:
journalist:
Can you guess the meanings of these words?
dramatically:

optimistic: give, eg. Can you ~ me some help?
v explode, eg. knowledge ~
n post , eg. the ~ service
appear, eg. He ~ ed during the
travel
decrease, eg. Our salary ~ed by
80%. greatly, eg. Our English has
improved ~.
eg. He is ~ and often smiles. pessimistic:

entertainment:

specialist:
image:
futurologist:
evidence:
species:
climatic:
coast: eg. He is ~ and often in low
spirits.
eg. I feel happy because we
have many kinds of ~s here.
adj special eg. He is a ~ in
this area.( expert)
picture or portrait
a person studying the future.
eg. This is the ~ of his stealing.
eg. I feel a ~ of excitement.
n climate eg. the ~ changes
adj coastal , coastlineRead the text quickly and find out:
“Which of these topics do you think it will
mention?”
the Internet
androids
genetic engineering
aliens （外侨，外星人）
global warming
virtual realitychaos:a mess eg. Cyberterrorists may attack
the world’s computers and cause chaos.Read the text quickly again and analyze
the structure of the text.
1.The whole topic is:
2.How many parts can we divide it into?
Part One:
Part Two:
Part Three:
Part Four:The situation
Pessimistic view
Optimistic view
A special kind of future:
virtual realitySkim the text for the third time and find out:
1. “What possible changes do the optimists
believe the Internet can bring to our lives?
2. “Why are some experts pessimistic about
the future? (list three things)
answers to:
1.an explosion of shopping on it; get enter-
tainment from it; TV and the postal service
will disappear; virtual reality will become
a part of modern life;
2.the activities of cybercriminals;hackers’
getting into and cyberterrorists’attacking. Listen and fill in the gaps:(book closed)
In the last _____ years, the Net has grown
____________, the number of computers has
grown form 200 to around 50 ________ since
1983 and this ______ is going to continue.
Some experts are _________ about the
future.One worry is the ________ of cybercri-
minals.Even now, young _______ can get into
the computers of banks and ____________. In
the future, cyberterrorists may _______ the
world’s computers,cause ______, and make
planes and trains ______. However, many people are ________ about
the future of the Internet. Already, users can
buy books, find out holiday _______, book
tickets,and get all______ of information from
the Net.
Angela Rossetto says: “In the next few years,
we are going to see an ________ of shopping
on the Net.” She also believes we’ll get
____________ from it, and TV will _________,
the postal ________ may also disappear with
the ________ use of e-mail. Some _________ see our future in virtual
reality-the use of computers with ______ and
______ that make you feel as if you are in a
real _______. Peter Anderson says, “I think
virtual reality will become a part of ______
life, I see people living and working in a
_______world. We will work in virtual offices,
shop in virtual ____________,and we will
even study in virtual _______.”Listen and fill in the gaps:(book closed)
In the last _____ years, the Net has grown
____________, the number of computers has
grown form 200 to around 50 ________ since
1983 and this ______ is going to continue.
Some experts are _________ about the
future.One worry is the ________ of cybercri-
minals.Even now, young _______ can get into
the computers of banks and ____________. In
the future, cyberterrorists may _______ the
world’s computers,cause ______, and make
planes and trains ______.thirtydramaticallymilliongrowthpessimisticactivitieshackersgovernmentsattackchaoscrash However, many people are ________ about
the future of the Internet. Already, users can
buy books, find out holiday _______, book
tickets,and get all______ of information from
the Net.
Angela Rossetto says: “In the next few years,
we are going to see an ________ of shopping
on the Net.” She also believes we’ll get
____________ from it, and TV will _________,
the postal ________ may also disappear with
the ________ use of e-mail. optimisticofferssortsexplosionentertainmentdisappearserviceincreasing Some _________ see our future in virtual
reality-the use of computers with ______ and
______ that make you feel as if you are in a
real _______. Peter Anderson says, “I think
virtual reality will become a part of ______
life, I see people living and working in a
_______world. We will work in virtual offices,
shop in virtual ____________,and we will
even study in virtual _______.”specialistssoundsimagessituationmodernvirtualsupermarketsschoolsDiscussion:
“Do you feel pessimistic or optimistic about
the future of the Internet? Why? Language points
1.In the last thirty years,the Internet has
grown dramatically.
1). In the last/past…., sb have done sth
eg. In the last ten years, our country has
made great progress in nearly all the aspects.
2).dramatically: greatly
2.There were only 200 computers, (which were)
connected to the Internet.
eg.There are six persons (who are) sitting
there.
3.sb be pessimistic/optimistic about…4. in the future: in the time yet to come
in future: from now on
eg. We should study hard in future,or you’ll
be sorry in the future.
5. …cause chaos: cause messes
6.find out about holiday offers 寻找节日特惠
7.book tickets :预订
8.all sorts/kinds of information
9.It is clear that….
eg. It is clear/obvious that we are going to
win the game.10.sb get entertainment from the Net
在网上进行娱乐活动
11.with the increasing use of e-mail
随着。。的增加
12.feel as if/though you are in a real situation.
13.a part of…一（小）部分，
part of..一部分（可能到一半）,强调（总体中）一
部分
eg. We are all part of our class. Grammar
Will & be going to
1.We use ‘will’ to express the situation when
our prediction is based on intuition,
knowledge,experience
* We use ‘be going to’ to express the
situation when our prediction is based on
evidence or facts that we can observe now.
eg. I think we will be able to have holidays
on the moon in twenty years’ time.
Look at those clouds. It’s going to rain. 2. We use ‘will’ to express what we have just
thought of.
We use ‘be going to’ to express the
intention that we have thought over.
eg. He is coming tomorrow and I am going
to pick him up.
Is he coming tomorrow? Ok, I’ll pick him
up.