Post on 26-Dec-2015
Lesson 3
Virtual Reality
What is virtual reality ？
The use of computers
to make situations fee
l and look real.
Task 1 Warm up
headsets, glass and
special gloves and
suits equipped
with sensors
the user can directly
interact with a 3D
(dimension) computer
programme by moving
‘inside’ it.
virtual reality holidays
learning to fly using virtual reality
technology
playing virtual reality computer games
visiting virtual museums on the Internet
Which of these uses for virtual reality
are possible now?
Playing virtual reality computer games.
Visiting virtual museums on the Internet.
Would you like to visit the Science
Museum website? Why or why not?
Would you like to go to a virtual
university?
read the dialogue
others’ opinions
Ok , you will find lots of good information at home. and needn’t spend time traveling there.
Wonderful, study in such a world-famous university without going out of your room.
什么是虚拟现实技术呢？简单地说 ,
就是人们利用计算机生成一个逼真的三维虚拟环境 , 通过自然技能使用传感设备与之相互作用的新技术。它与传统的模拟技术完全不同 , 是将模拟环境、视景系统和仿真系统合三为一 , 并利用头盔显示器、图形眼镜、数据服、立体声
耳机、数据手套及脚踏板等传感装置 ,
把操作者与计算机生成的三维虚拟环境连结在一起。操作者通过传感器装置与虚 拟环境交互作用 , 可获得视觉、听觉、触觉等多种感知 , 并按照自己的意愿去改变“不随心”的虚拟环境。
比如 , 计算机虚拟的环境是一座楼房 , 内有各种设 备、物品，操作者会如同身临其境一样 , 可以通过各种传感装置在屋内行走查 看、开门关门、搬动物品 ; 对房屋设计上的不满意之处 , 还可随意改动。
Task 2 ReadingTask 2 Reading
True or FalseTrue or False
1. This weekend Tom will help Cathy
finish a project on the history of the
Internet.
2. Cathy is more interested in virtual
holiday than Tom.
3. Tom will have a virtual reality
holidays this weekend.
F
T
F
4. Virtual university is an interesting
game on line instead of a real
university.
5. Virtual reality holidays spend less
time than real holidays. T
F
6. You needn’t go to the real place in
virtual reality holidays but you
can get real feeling of traveling
there.
7. The Science Museum on line
doesn’t exist in fact , just imagine
it.
T
F
Read the dialogue and answer the
questions.
1. Why can’t Cathy go out this weekend?
She has to finish her project.
2. Where is Tom planning to go?
He’ll go camping if the weather is
good.
3. Does Cathy have a programme for
‘virtual’ holidays on her computer?
No.
4. Does she really think she will have t
he chance to go a world tour?
No.
5. What would Tom like to do with
virtual reality?
He would like to go to a world famous
university.
6. Why is Cathy so excited about the
technology?
Because she thought she would be
able to go anywhere she liked.
Correct mistakes
1. What are you going to do at this
weekend.
2. I have too many things to be done.
3. We won’t go to go camping if it will.
rain.
4. If they invent virtual reality holidays,
I’d go on an around-the-world tour.
inventeds
5. Do you have anything plan for
Saturday and Sunday.
6. Tom imagines himself go to a famous
university.
7. Personal I’m interested in virtual
university.
planed
Personally
going
What are the advantages and
disadvantages of a virtual university?
Would you like to go to such a
university? Why?
Voice your opinion
No limit to time and place
It is convenient to attend
save transportation time
needn’t buy text material
take your job as study
Advantages of a virtual university
Lack face-to-face communication
No real experience of going to college
Can’t go to a virtual university without special equipments
Disadvantages of a virtual university
Language points
1. what’s …up to 口语中问对方在做什么 You look worried, what have you been up t
o?
你看上去很担心的样子 , 怎么了 ?
My brother locked himself in his room for
a whole morning. What is he up to?
弟弟整个上午把自己关在房间 , 他在干什么 ?
2. suggest 建议 , 后接宾语从句 ( 虚拟语气 ) 或动名词短语。
I suggest that you (should ) check the i
nformation before you sign your nam
e. 我建议你在签字之前检查一下所列信息。
Catherine suggests asking her dad for
his opinion.
凯瑟琳建议征询她爸爸的建议。暗示 , 表明 ( 真实语气 )
The look on his face suggested he was
angry.
他脸上的表情表明他生气了。
3. But I still find it hard to imagine.
It 是形式宾语 , hard 为宾语补足语 ,
to imagine 为真正的宾语。 Children find it hard to concentrate.
孩子们发觉很难集中精力 I find it a great pleasure to meet you
here.
在这里遇见你真令人愉快。
I thought it best to wait for him.
我认为最好等他。I found it not easy to get on with Jim.
我发现和吉姆相处不容易。
Read the sentences in italics in the first
seventeen lines of the dialogue. Are the
sentences used to talk about:
a) Unlikely situations in the future?
b) Possible situations in the future?
1. If I don’t finish my project on the
history of the Internet for next
Monday’s lesson, the science teacher
will be angry.
2. If it’s good, Dad, Mum and I will
probably go camping.
3. We won’t go if it rains.
b
b
b
4. If I stay home, I’ll help you with
your project if you like.
5. If you tell me some titles, I’ll look for
them in the library.
6. If you go to the Science Museum
website, you’ll find lots of good
information.
b
b
b
7. If we had virtual reality holiday, we
wouldn’t have any problems with
the weather.
8. If they invented virtual reality
holidays, I’d go on an around-the-
world tour.
b
b
Write these sentences as First
Conditionals. Put the verbs in brackets
in the correct form.
1. What (do) if your computer (not
work)?
What will you do if your computer
doesn’t work?
2. (You go) out with me on Saturday nig
ht if you (finish) the project?
Will you go out with me on Saturday
night if you finish he project?
3. If you (go) to that website, you (find) s
ome interesting imformation.
If you go to that website, you’ll find s
ome interesting information.
4. (You go) to that concert if it (rain)?
Will you go to that concert if it rains?
5. She (buy) a computer if she (get) that
job.
She’ll buy a computer if she gets that
job.
6. I (give) you the information if you
(telephone) me tomorrow.
I’ll give you the information if you
telephone me tomorrow.
7. What (you do) if the information if
you (telephone) me tomorrow.
What will you do if the weather isn’t
good tomorrow?
8. My sister (not go) to London if she
(not pass) her exam.
My sister won’t go to London is
she doesn’t pass her exams.
Read the sentences and decide
what the people are expressing.
a) Unrealistic hopes for he future
b) Plans for the future
c) Something that isn’t possible now
If we had virtual reality holidays, we
wouldn’t have any problems with the
weather.
If they invented virtual reality
holidays, I’d go on an around-the-
tour.c) Something that isn’t possible now
1. If I had the money, I would buy a
new IBM computer.
a) a student b) a millionaire
2. If I felt ill, I would stop smoking.
a) a smoker b) a non-smoker
3. If I were a teacher, I would be
popular with my students.
a) a teacher b) a journalist
a) a student
b) a journalist
b) a non-smoker
Who would say these things, a or b?
Language in UseLanguage in Use
Write about your ideal future. Think
about your home, job, partner, family,
etc. Write conditional sentences to
explain why you would like this kind
of life.
Homework
Write about your ideal future. Think
about your home, job. Partner,
family, etc. Write conditional
sentences to explain why you would
like this kind of life.