必修二Unit 4Lesson 1Tomorrow’ s World明天的世界The Future of Cyberspace网络空间的未来Peter Taylor finds out how computers and the Internet are going to affect our lives.彼得泰勒发现了计算机和因特网会怎样影响我们的生活。
In last thirty years, the Internet has grown rapidly. In 1983, there were only 200 computers connected to the Internet; now there are around 50 million and this growth is clearly going to continue.在过去的三十年中，互联网的迅速发展。
1983，仅有200 台计算机连接到Internet；现在有左右，这一增长显然是要继续下去。
Some expert are pessimistic about the future. Oneworry is crime in cyberspace. Even now, young hackerscan get into the computers of banks and governments.In the future, terrorists may “ attack ” the world ’ s computers, cause chaos, and make planes and trainscrash.一些专家对未来感到悲观。
一个担心是网络犯罪。
即使是现在，年轻的黑客可以进入银行和政府的电脑。
在未来，恐怖分子可能会“攻击”全世界的计算机，造成混乱，使飞机和火车事故。
However, many people are optimistic about the future of the Internet. Already, users can buy books, find out about holidays offers, books tickets, and get all sorts of information from the Internet.然而，许多人对因特网的未来持乐观态度。
已经，用户可以购买书籍，发现假期提供，书票，并从网上获取各种各样的信息。
“ In the next few years,” say Angela Rossetto of Cyberia magazine,“ it is clear that we are going tosee a huge growth in shopping on the Internet.” Shealso believes that,in the future,we will getentertainment from the Net and that television willprobably disappear. The mail service may also disappearwith the increasing use of e-mail.“在未来的几年里，”安吉拉说，在罗塞托的杂志，“很明显，我们将会看到网上购物的巨大增长。
”她还认为，在未来，我们将从网上，电视可能会消失，得到娱乐。
邮件服务可能会随着电子邮件的消失。
Someexperts see our future in virtual reality–the use of computers with sounds and pictures that make you feel as if you are in a real situation.“ Personally,I think virtual reality will become a part of modernlife, ” say Australian expert Peter Anderson.有些专家看到了虚拟现实的未来–使用电脑的声音和图片，让你觉得如果你在真实的情况。
“就我个人而言，我认为虚拟现实将成为现代生活的一部分，”说，澳大利亚专家彼得。
“I see people living and working in a virtual world.We will work in virtual offices,shop in virtualsupermarkets,and we will even study in virtualschools.”“我看到人们在虚拟世界里生活、工作。
我们将在虚拟办公室工作，在虚拟超市购物，甚至会在虚拟学校学习。
”Lesson 3Virtual Reality虚拟现实Tom: Hi, Cathy. What are you up to this weekend汤姆：嗨，凯西。
这个周末你打算做什么Cathy: Don ’ t ask, Tom. I have lots of work to do. If I don ’ t finish my project on the history of theInternet for next Monday’s lesson, the science teacher willbe angry. What about you Do you have anything planned for Saturday and Sunday凯西：别问，汤姆。
我有很多工作要做。
如果我没有完成我的项目在互联网的历史为下星期一的课，老师会生气的。
你呢你有计划在星期六和星期日的事吗Tom: It depends on the weather. If it ’ s good, Dad, and Mum and I will probably go camping. But we won’ t go if it rains. Hey, if I stay home,I ’ ll help youhelp with you project if you like.汤姆：这取决于天气。
如果是好的，爸爸，妈妈和我可能会去野营。
但我们不会下雨。
嘿，如果我呆在家里，我会帮助你，帮助你的项目，如果你喜欢。
Cathy: Thanks for the offer. Tom, can you suggest anygood books for my project If you tell me some titles,I ’ ll look for them in the library.凯西谢谢你的热情。
汤姆，你能推荐一些好的书我的项目如果你告诉我一些书名，我会在图书馆找到他们。
Tom: Use the library computer, If you go to the Science Museum website,you’ ll find lots of good information.I ’ ll send you the website address whenI get home.汤姆：使用图书馆的电脑，如果你去科学博物馆的网站，你会发现很多很好的信息。
我会给你的网站地址，我回家的时候。
Cathy: Thanks. Just think, if we had virtual realityholidays, we would n’ t have any problem with theweather. What’ s more, we wouldn’ t have to spenda long time travelling in planes to get to ourholiday destinations.凯西：谢谢。
试想，如果我们有了虚拟现实的假期，我们就不会有任何问题与天气。
更重要的是，我们不必花长时间坐飞机去我们的度假胜地。
Tom: What do you mean汤姆：你是什么意思Cathy: Well, in the future, we’ll be able to use modern technology to go anywhere we like. We won’t haveto go there in the flesh at all! Wouldn’ t that begreat I feel excited just thinking about it.凯西：好的，在未来，我们将能使用现代技术，我们想去的任何地方。
我们不必去肉在所有！那不是很好吗我感到兴奋，只是想着它。
Tom: I don’ t understand.Cathy, do you mean we’ ll use the computer to travel around the world, enteringand exiting countries in seconds and visitingall the historical sites汤姆：我不明白。
凯西，你的意思是我们可以使用计算机来环游世界，进入和退出国家秒和参观历史遗迹吗Cathy:That ’s right! Just imagine never having to pack a suitcase!We would not only be able to travelaround the world, but also go to study in any worldfamous universities we wanted to.凯西没错！想象一下没有收拾行李！我们不仅能周游世界，而且去一所世界知名的大学学习我们想。
Tom: That could be really exciting! But I still findit hard to imagine. You would see it but you couldn ’ t dip your toes in the sea or eat the foodsyou saw. You would not experience it.汤姆：那可真是令人兴奋的！但我仍然觉得很难想象。
你会看到它，但你不能把脚浸在海水或吃的食物，你看到的。
你不会体验。
Cathy: Well, if they invented virtual reality holidays,I ’ d go on an around-the-world tour. Tom, what would youlike to do if someone gave you the change凯西：嗯，如果他们发明了虚拟现实的假期，我会环游世界。