课件50张PPT。北师大 高一 (2) Unit 4Unit 4 CyberspaceLesson 1
Tomorrow's WorldImagine life in the next twenty years. How do you think technology will change our lives?
For example:
All cars will have computers.smartconvenientmulti-functionalsend SMS, call,
alarm clock, games,
take photos, mp3,
go on line …typical cell phoneOnly for callsHave you ever seen
such a camera?Digital cameragramophonemp3walkmanmp4Can you imagine
what a computer
looked like in the
1980s?But in the 21st
century, …1. Imagine what happens in the next twenty years. 2. Is it possible that the computer gives us disaster?Look at the title of the article.
Which of these topics do you think it will mention?* the Internet * artificial human
* time travel * robots
* global warming * virtual realityRead the article quickly and check your guess to the question above.With the development of computers, our life may change in shopping and communicating ways.
The text infers to us that worry is not necessary, computers and the Internet only do good to us.
Some experts say in the future we will not go to school in the classroom like us.True or FalseTFT4. In the future it is possible that people live in another world of outer space.
5. The text tell us you can do many things but needn’t go to the place yourself.
6. Because of the rapid development of Internet television and the mail will be replaced by computer.FTTLearning vocabularyMatch the vocabulary from the text below with the definitions.hacker, chaos, terrorist, the Net (Internet), virtual reality, crashA person who enters
other people’s computer
programmes in secrethackerThe use of computers to make situations feel and look realvirtual realityHave an accident by violently hitting somethingcrashSomeone who does terrible things to harm countries, governments, and people.terroristComputer system that allows millions of people around the world to share informationthe NetA terrible situation in which everything
goes wrong.chaosIn the last thirty years, the Internet grew rapidly.
2. Terrorist may “attack” the world’s
computers, cause chaos, make planes
and trains crash.
3. It is convenient to order tickets from
the internet.has grownandbook∧Correct error4. In 1983, there were only 200 computers connect to the Internet.
5. It is clear we can use internet to do all kinds of things at home.
6. Personally, I’m optimistic about the future of internet.connectedthatthe∧∧7. As society develops, computers will make our life much convenient.
8. The mail service may also disappear as the increasing use of e-mail. morewith1. What possible changes do some experts believe the Internet can bring to our lives?We can feel convenient, and we can do all kinds of things on the Internet at home, such as buying books, reading news, booking tickets and so on.Some traditional things will disappear.
We may live in a virtual world.2. Why are some experts pessimistic about
the future?Hackers can get into the computers of banks and governments so that change data or steal away important information.Terrorists will attack the world’s computers, cause chaos, make planes and trains crash.pessimistichackersCyber terroristsnowin the futurecybercriminaloptimisticin the futureget
entertainment TV & mail
service
will disappearalreadyin the next
few yearsshop on the
Internetget
informationbuy booksfind out holiday
offersbook ticketsVoice your opinion Do you feel pessimistic or
optimistic about the future
of the Internet? Why?Language points In 1983, there were only 200 computers
connected to the Internet.computer和connect 是被动关系, 因此 connected to是过去分词做定语来修饰 computer, 相当于一个定语从句。= which were connected to the Internet.e.g. It is surprising that there were 300 gold coins buried underground.
= which were buried underground. 真是令人惊奇, 地下埋了300枚金币。
There are so many people watching the big fire in the street.
= who are watching the big fire in the street. people和watching是主动关系。watching是现在分词做定语表主动,来修饰people,相当于定语从句。2. Some experts are pessimistic about the future. 一些科学家对(计算机主宰的)未来表现出悲观的态度。
be pessimistic/optimistic about 对……悲观/乐观
e.g. I’m rather pessimistic about the present situation. 我对目前的局势感到悲观。3. It is clear that we are going to see a huge growth in shopping on the Internet.
很显然, 我们将会看到网上购物的巨大增长。
It作形式主语, 真实主语是 that引出的主语从句。
= that we are going to see a huge growth in shopping on the Internet is clear.It is clear that in the next few years the Earth’s climate will change.
= That in the next few years the Earth’s climate will change.
4. ... the use of computers with sounds and pictures that make you feel as if you are in a real situation. (虚拟世界)是计算机通过声音和图像模拟现实, 以使人感到仿佛置身于一个真实的空间。
as if 连词, “仿佛, 好像”
e.g. It sounds as if she’s been really ill.
听上去好像她真的病了。 5. We have to take immediate action. 我们得马上采取行动。
take action 采取行动
e.g. We must take actions to prevent the spread of disease. 我们必须采取行动防止疾病的传播。Predictions will and be going to Read the following sentences from the text. In pairs, decide which
talks about a future event we can predict from a present situation.
expresses our opinions and beliefs about the future.Grammar1. …, “it is clear that we are going to see a huge growth in shopping on the Internet.”
2. She also believes that, in the future, we will get entertainment from the Net and that television will probably disappear.
3. “Personally, I think virtual reality will become a part of modern life,” …abbWhich comment is better in each situation? You’re planning to buy a computer.
a) I hope it will be cheap.
b) It is going to be cheap.2. It’s the last ten minutes of a basketball match between Russia and the USA. The score is 102:56 to Russia.
a) The USA will lose.
b) The USA is going to lose.a) I hope it will be cheap.b) The USA is going to lose.Complete the text with be going to or will.Earth Report!
Dr Carl Wight is an expert on the environment. He speaks to our reporter. “It is clear that in the next few years the Earth’s climate (1) _________ change. I’m afraid that this probably means that many kinds of animals, such as the South China tiger, (2) ___________ disappear soon. is going to are going toChanges in climate (3) ____________
certainly affect people’s lives too. Because of global warming, the sea has already destroyed parts of Britain. It is obvious that this destruction (4) ____ become more dangerous in the future. We have to take immediate action, or I fear that life on Earth (5) _____ get worse.”are going towillwill1. — Guess what, we’ve got our visas for a
short-term visit to the UK this summer. — How nice! You ____ a different
culture then.
A. will be experiencing B. have experienced
C. have been experiencing D. will have experienced A高考链接2. Joseph ______ to evening classes since last month, but he still can’t say “What’s your name?” in Russian.
A. has been going B. went
C. goes D. has goneA 3. On the next birthday, Ann _______ married for twenty years.
A. is B. has been C. will be D. will have beenD4. — Ann is in hospital.
— Oh, really? I ____ know. I ___ go and visit her.
A. didn’t; am going to B. don’t; would C. don’t; will D. didn’t; will
5. If their marketing plan succeeds, they _____ their sales by 20 percent.
A. will increase B. have been increasing
C. have increased ????D. would be increasing DA6. — What do you think of store shopping
in the future?
— Personally, I think it will exist along
with home shopping but _______.
A. will never replace B. would never replace
C. will never be replaced D. would never be replacedC8. In the near future, more advances in the
robot technology _______ by science.
A. are making B. are made C. will make D. will be madeD7. -Tommy is planning to buy a car.
-I know. By next month, he ______
enough for a used one.
A. saves B. saved C. will save D. will have savedD Work in pairs. Student A is a pessimist and Student B is an optimist. Make predictions about life by the year 2050. Language in UseExample
A: The earth is going to become more crowded and we are going to have more problems with traffic.
B: No, I don’t agree. I think there will be no traffic problems by the year 2050 because many of us will be working at home using computers. Finish exercise 4, 5 and 6 on Page 55. Homework