Unit 4
Internet
四川邮电职业技术学院 2
Contents
?Revision
?Pre-reading Activities
?While-reading Activities
?New words and phrases
?Text organization
?Text and translation
?Post-reading Activities
?Further Development of the Theme-related
Specialized Knowledge
?Assignments
四川邮电职业技术学院 3
Revision
?Teacher uses the following exercise to help
the students to revise the important
expressions or phrases or sentences which
were learnt in the study of last unit,
?Teacher, When I say a phrase or an
expression in Chinese,you respond by
giving an English equivalent your learnt in
the study of Unit3,
返 回
四川邮电职业技术学院 4
Pre-reading Activities
? 1,Ask the Ss the following two questions related to the theme
of the text,
? What is Internet?
? Possible answers,The Internet is a giant network of
computers located all over the world that communicate with
each other,
? What are the usages of Internet?
? Possible answers,The most commonly used network service
is electronic mail (E-mail),or simply as mail,
? 2,Teacher leads into the text by saying,From the explanation
you gave about Internet,and also you’ve studied Internet
before,based on your knowledge about them,I’m sure you
can achieve a good understanding of the new text,Now,let’s
have a careful study of the text,
返 回
四川邮电职业技术学院 5
While-reading Activities / New
words and phrases
?collection n,收集,收成
?address n,地址
?complex n,合成物,综合企业
?resource n,资源
?dictate v,命令, 支配
?hypertext n,超级文本
?interface n,接口,界面
返 回
四川邮电职业技术学院 6
While-reading Activities / Text
organization
? 1,Ss read the text and point out the main idea of the
text,
? The main idea,The text mainly discusses the origin
and development of Internet,
? 2,Ss make an analysis of the organization of the
text,
? The text may be divided into three major sections,
? Section 1 (Lines1-20),the origin of the Internet,
? Section 2 (Lines21-73),the usages of Internet,
? Section 3 (Lines74-85),the prospect of Internet,
返 回
四川邮电职业技术学院 7
Text and translation
?Internet (1)
翻 译 下 一 页 返 回
四川邮电职业技术学院 8
Text and translation
?The Internet is a giant network of computers
located all over the world that communicate
with each other.(2)
翻 译 下 一 页 上 一 页 返 回
四川邮电职业技术学院 9
Text and translation
? The Internet is an international(3)collection of
computer networks that all understand a standard
system of addresses and commands,connected
together through backbone systems,It was started
in 1969,when the U.S,Department of Defense
established a nationwide network to connect a
handful of universities and contractors,The original
idea was to increase computing capacity that could
be shared by users in many locations and to find
out[4] what it would take for computer networks to
survive a nuclear war or other disaster by providing
multiple path between users,
翻 译 下 一 页 上 一 页 返 回
四川邮电职业技术学院 10
Text and translation
? People on the ARPNET quickly discovered
that they could exchange messages and
conduct electronic "conferences" with[5]
distant colleagues for purposes that had
nothing to do with the military industrial
complex,If somebody else had something
interesting(6) stored on his or her computer,
it was a simple matter to obtain a copy,
翻 译 下 一 页 上 一 页 返 回
四川邮电职业技术学院 11
Text and translation
? Over the years,additional networks joined
which added access to more and more
[7]computers,The first international
connection,to Norway and England,were
added in 1973.Today thousands of networks
and millions of computers are connected to
he Internet,It is growing so quickly that
[8]nobody can say exactly how many users
"On the Net",
翻 译 下 一 页 上 一 页 返 回
四川邮电职业技术学院 12
Text and translation
? The Internet is the largest repository
of information (9) which can provide
very very large network resources,The
network resources can be divided into
network facilities resources and
network information resources,
翻 译 下 一 页 上 一 页 返 回
四川邮电职业技术学院 13
Text and translation
?The network facilities resources
provide us the ability of remote
computation and communication,The
network information resources provide
us all kinds of information services,
such as science,education,business,
history,haw,art,and entertainment,(10)
etc,
翻 译 下 一 页 上 一 页 返 回
四川邮电职业技术学院 14
Text and translation
? The goal of your use of the Internet is exchanging
messages or obtaining information,What you need
to know is that you can exchange message with
other computers on the Internet and use your
computer as a remote terminal on distant
computers,(11) But the internal details of the link
are less important,as long as it works,If you
connect computers together on a network,each
computer must have a unique address,which could
be either a word or a number,For example,the
address of Sam's computer could be Sam,or a
number,翻 译 下 一 页 上 一 页 返 回
四川邮电职业技术学院 15
Text and translation
? The Internet is a huge interconnected system,but
it uses just a handful of method to move data
around,Until the recent explosion of public interest
in the Internet,the vast majority of the computers
on the Net use the Unix operating system,As a
result,the standard Unix commands for certain
Internet services have entered the online
community's languages as both nouns and verbs to
describe the services themselves,Some of the
services hat the Internet can provide are,Mail,
Remote use of another computer (Telnet),File
Transfer (FTP),News,and Live conversation,
翻 译 下 一 页 上 一 页 返 回
四川邮电职业技术学院 16
Text and translation
?The most commonly used network
service is electronic mail (E-mail),or
simply as mail,Mail permits network
users to send textual messages to each
other,Computers and networks handle
delivering the mail,so that [12]
communicating mail users do not have
to handle details of delivery,and do not
have to be present at the same time or
place,
翻 译 下 一 页 上 一 页 返 回
四川邮电职业技术学院 17
Text and translation
?The simplest way to access a file on
another host is to copy it across the
network to your local host,FTP can do
this,
翻 译 下 一 页 上 一 页 返 回
四川邮电职业技术学院 18
Text and translation
?Presently,a user with an account on any
Internet machine can establish a live
connection to any other machine on the Net
from the terminal in his own office or
laboratory,[13] It is only necessary to use
the Unix command that sets up[13] a remote
terminal connection (Telnet),followed by the
address of the distant machine,
翻 译 下 一 页 上 一 页 返 回
四川邮电职业技术学院 19
Text and translation
? Before you can use the Internet,you must
choose a way to move data between the Internet
and your PC,This link may be a high-speed data
communication circuits,a local area network
(LAN),a telephone line or a radio channel,Most
likely (14),you will use a Modem attached to your
telephone line to talk to the Internet,Naturally,the
quality of your Internet connection and service,
like many other things in life,is dictated by the
amount of money you are willing to spend,
翻 译 下 一 页 上 一 页 返 回
四川邮电职业技术学院 20
Text and translation
? Although all these services can well satisfy the
needs of the users for information exchange,a
definite requirement is needed for the users,
Not only should the users know where the
resources locate,but also he should know
some operating commands concerned,[15]
? To ease the searching burden of the users,
recently some convenient searching tools
appear,such as Gopher,WWW and Netscape,
翻 译 下 一 页 上 一 页 返 回
四川邮电职业技术学院 21
Text and translation
? World wide web (WWW) is a networked
hypertext protocol and user interface,It
provides access to multiple services and
documents like Gopher does but is more
ambitious in its method,A jump to other
Internet service can be triggered by a mouse
click on a,hot-linked” word,image,or icon
on the Web page,
翻 译 下 一 页 上 一 页 返 回
四川邮电职业技术学院 22
Text and translation
? As more and more systems join the Internet,and as
more and more forms of information can be
converted to digital form,the amount of stuff
available to Internet users continues to grow,At
some points very soon after the nationwide (and
later worldwide) Internet started to grow,people
began to treat the Net as a community,with its own
tradition and customs,For example,somebody
would ask a question in a conference,and a
complete stranger would send back an answer,after
the same questions were repeated several times by
people who hadn’t seen the original answers,
somebody else gathered a list of,frequently asked
questions” and placed it where newcomers could
find it,翻 译 下 一 页 上 一 页 返 回
四川邮电职业技术学院 23
Text and translation
? So we can say that the Internet is your PC’s
window to the rest of the world,
翻 译 下 一 页 上 一 页 返 回
四川邮电职业技术学院 24
Text and translation
?与本单元课题有关的电信术语或用语 (16) 。
上 一 页 返 回
四川邮电职业技术学院 25
Post-reading Activities
?i,Review the important expressions,
phrases or sentences which were learnt in
the
?study of text by guiding the students
through Exercises 1-2 in class,
?需要掌握的几个基本问题,
?互连网的定义;
?网络资源可以分为哪两种?
?使用互连网的目的是为了什么?
?最常使用的网络服务是什么?
下 一 页
四川邮电职业技术学院 26
Post-reading Activities
?ii,Ask the students to summarize the
translation skills touched upon in the study
of the text,
?Possible answers,构词法、定性定语从句的译

上 一 页 返 回
四川邮电职业技术学院 27
Further Development of the Theme-
related Specialized Knowledge
?第四单元
?http://www2.zzu.edu.cn/
?Internet
返 回
四川邮电职业技术学院 28
Assignments
? 1,Preview Unit 5
? 2,Do Exercises3-5 as homework,
返 回
四川邮电职业技术学院 29
本单元结束!
谢 谢!!
四川邮电职业技术学院 30
?以下幻灯片为翻译
四川邮电职业技术学院 31
Text and translation
?课文题目:互 联 网
课 文
四川邮电职业技术学院 32
Text and translation
? Internet是由位于世界各地相互通信的计算机连
接而成的巨大的计算机网络。
课 文
四川邮电职业技术学院 33
Text and translation
?Internet是计算机网络的国际性的集合,这些网
络都符合具有地址和命令的标准体系,并经骨干
网连在一起。 Internet始建于 1969年,当时美国
国防部为连接一些大学和协议企业而建立了一个
全国性网络。最初的想法是要增加计算机能力并
可由许多地点的用户共享,并且通过提供用户间
多条路径来找到哪一种计算机网络能够在核战或
其他灾难中幸存。
课 文
四川邮电职业技术学院 34
Text and translation
?ARPNET(这种全国网络最初的名称 )上的用户很
快就发现他们可以与远距离的同事交换消息,并
且进行某种目的的电子“会议”,而这些目的与
军事工业企业没有任何关系。如果另外一些人在
其计算机中存有有趣的东西,得到其拷贝是很容
易的事 (假定拥有者没有进行保护 )。
课 文
四川邮电职业技术学院 35
Text and translation
?几年间,新的网络接入使越来越多的计算机加入
进来。在 1973年进行了第一次与挪威和英国的国
际连接。今天,有成千上万的计算机网络和数百
万台计算机与 Internet相连。 Internet发展如此
之快以至于没有人能准确地说出网上有多少用户。
课 文
四川邮电职业技术学院 36
Text and translation
? Internet是最大的信息宝库,它可以提供非常巨
大的网络资源。这种网络资源可分为网络设备资
源和网络信息资源。
课 文
四川邮电职业技术学院 37
Text and translation
?网络信息资源向我们提供各种各样的信息服务,
如科学、教育、商务、历史、法律、艺术和娱乐
等等。
课 文
四川邮电职业技术学院 38
Text and translation
?网络设备资源使我们能够进行远程计算和通信。
网络信息资源向我们提供各种各样的信息服务,
如科学、教育、商务、历史、法律、艺术和娱乐
等等。
课 文
四川邮电职业技术学院 39
Text and translation
? 使用 Internet的目的是交换消息或获得信息。你
只须知道你可以与 Internet上的其他计算机交换
消息并将你的计算机用作远端计算机的远程终端,
而链路的内部细节并不太重要,只要网络能工作
就行。若将多台计算机连接到网络上,每台计算
机须有惟一的地址,地址可以是一个字或一个数
字。例如 Sam的计算机地址可以是 Sam或一个数
字。
课 文
四川邮电职业技术学院 40
Text and translation
?虽然 Internet是一个巨大的互联系统,但它仅使
用一点简单办法就将数据传来传去。近来公众对
Internet产生了极大的兴趣,在这之前,绝大多
数网上计算机都使用,Unix操作系统。结果,用
于某些 Internet业务的标准 Unix命令已经进入联
机团体语言当作名词和动词来描述业务本身。
Internet可以提供的一些服务为:电子邮件、远
程使用其他计算机、文件传送、电子新闻和实况
对话。
课 文
四川邮电职业技术学院 41
Text and translation
?最常使用的网络服务是电子邮件,或简称邮件。
电子邮件允许网络用户彼此传送文本消息。邮件
的传递由计算机和网络处理,邮件用户不必关心
传递的细节,也不必同时在场。
课 文
四川邮电职业技术学院 42
Text and translation
?从其他主机中获得文件的最简单的方式是通过网
络将其拷贝到你的计算机上。文件传送 (FTP)可
完成这项工作。
课 文
四川邮电职业技术学院 43
Text and translation
?目前,用户在 Internet建立账户后,就可从 ·其办
公室和实验室的终端上与网上其他计算机建立实
时连接。只需使用 Unix命令 Telnet来建立远程终
端连接,命令后跟上远端计算机的地址即可。
课 文
四川邮电职业技术学院 44
Text and translation
?可使用 Internet之前,必须使用一种方法在你的
PC机和 Internet之间传送数据。这种连接的链路
可以是高速数据通信电路、局域网 (LAN),电话
线路或无线信道。最有可能的是,你使用
Modem连到电话线上与 Internet对话。当然,像
生活中许多其他的事物一样,与 Internet连接和
服务的质量是由你所花钱的数量决定的。
课 文
四川邮电职业技术学院 45
Text and translation
?虽然所有这些服务可以很好地满足用户对信息交
换的需要,但用户仍旧还需要具有一些特定的先
决条件。用户不仅要知道信息资源所处的位置,
而且要知道一些有关的操作命令。为了减轻用户
寻找信息的负担,近来出现了一些方便的搜索工
具,如 Gopher,WWW和 Netscape。
课 文
四川邮电职业技术学院 46
Text and translation
?全球网 (WWW)是一种网络的超文本协议和用户
界面。像 Gopher一样,它提供多种服务和文件
接入方法,但其方法更加有前途。向 Internet其
他服务的跳转可在网页上由鼠标器点击“热链接”
的字\图像或小像框来启动。
课 文
四川邮电职业技术学院 47
Text and translation
? 随着越来越多的系统加入 Internet,同时随着越
来越多的信息可以转变成数字形式,Internet用
户所能得到的东西也在继续增加。随着国家 (后
来是国际 ) Internet的发展,人们很快在某些方面
开始将互联网看作是一个社区,有自己的传统和
习惯。例如某些人会在会议上提出一个问题,一
个完全陌生的人会传送一个答案;由于一些人没
有看到最初的答案而多次重复这一问题,这时另
外一些人会搜集一系列“经常提到的问题”并将
其放置在新来者能找到的地方。
课 文
四川邮电职业技术学院 48
Text and translation
? 所以我们可以说,Internet是你的 PC机通向世
界其他地方的窗口。
课 文
四川邮电职业技术学院 49
?以下幻灯片为课文 Notes。
四川邮电职业技术学院 50
While-reading Activities /
Key language points
?1.The definition of Internet,The Internet is a
giant network of computers located all over
the world that communicate with each other,
四川邮电职业技术学院 51
While-reading Activities /
Key language points
?2,The Internet is a giant network of
computers located all over the world that
communicate with each other,
?此句中 that引出定语从句修饰 computers,
located分词短语也修饰 computers.可译为“设
在全世界的计算机”,
?all over the world:遍及全世界,
?communicate with:和 ….,交流,通信 ; 传达
?eg,~ news to comrades
?communication,n,通讯,交换(意见)
?eg,air-to- air ~
?communicator,n,通信员;发信机
四川邮电职业技术学院 52
While-reading Activities /
Key language points
?3,---al,形容词后缀,用于名词之后,,…… 的”
? eg,international,original,internal,
digital,terminal,,
四川邮电职业技术学院 53
While-reading Activities /
Key language points
?4,The original idea was to increase
computing capacity that could be shared by
users in many locations and to find out what
it would take for computer networks to
survive a nuclear war or other disaster by
providing multiple path between users,
?此句较长,其主干为,…idea was to increase …
and to find out,by … 引出介词短语,表示方式,。
?find out,找到
四川邮电职业技术学院 54
While-reading Activities /
Key language points
? 5,People on the ARPNET quickly discovered that
they could exchange messages and conduct
electronic "conferences" with distant colleagues for
purposes that had nothing to do with the military
industrial complex,
? 第一个 that引出宾语从句,此宾语从句有两个谓
语,exchange and conduct,第二个 that引出定语从句。
? exchange sth,with sb.:和 …,交换;
? exchange sth for sth
? eg,① ~ a horse for a cow
? ② I’ll ~ my ideas with you later,
? have nothing to do with 与 … 没有任何关系,
四川邮电职业技术学院 55
While-reading Activities /
Key language points
?6,something interesting,1)此词组中,形容
词修饰不定代词,一定要位于其后。
?2) interesting,现在分词做形容词,是物做主
语,表主动,“有趣的”
? interested,过去分词做形容词,是人做主
语,表被动,“对什么感兴趣的”
?eg,① This book is very interesting,
? ② I’m interested in music,
?类似的词还有,exciting / excited boring/
bored
四川邮电职业技术学院 56
While-reading Activities /
Key language points
?7.more and more, 比较级 + and+比较级,“越
来越 ……”,表明程度的加深。
?The +比较级 ……,the + 比较级,,越 ……,就
越 ……”,表明一方随着另一方的变化而变化。
?eg,① The weather is getting warmer and
warmer,
? ② The more you work,the more you get,
四川邮电职业技术学院 57
While-reading Activities /
Key language points
?8,It is growing so quickly that nobody can
say exactly how many users "On the Net",
?So …that 如此 … 以至于 …, 引导的是结果状语
从句。
?eg,The little girl is so cute that everybody
likes her,
四川邮电职业技术学院 58
While-reading Activities /
Key language points
?9,---tion,名词后缀,用于动词后面,构成相应
的名词形式。
?eg,connection / information / education /
communication
四川邮电职业技术学院 59
While-reading Activities /
Key language points
?10,---ment,名词后缀,用于动词后面,构成相
应的名词形式,
?eg,entertainment / judgment / management /
arrangement
四川邮电职业技术学院 60
While-reading Activities /
Key language points
?11,What you need to know is that you can
exchange message with other computers on
the Internet and use your computer as a
remote terminal on distant computers,
?句中 what引出的从句作主语,that引出表语从句,
此从句有两个谓语,exchange … and use …,
四川邮电职业技术学院 61
While-reading Activities /
Key language points
?12,so that communicating mail users do not
have to handle details of delivery,
?so that 使得,以致,引导目的状语从句。
?eg,Tom got up early this morning so that he
could catch the first bus,
四川邮电职业技术学院 62
While-reading Activities /
Key language points
?13,It is only necessary to use the Unix
command that sets up a remote terminal
connection (Telnet),
?It 是形式主语,真实主语系 to use … ;类似的句
型还有,
?It is important / impossible to do sth
?sets up,建立 ……,
四川邮电职业技术学院 63
While-reading Activities /
Key language points
?14,likely,此词虽然是 —ly 结尾,但是词性是
形容词,类似的词还有,
?lonely / lovely / friendly
四川邮电职业技术学院 64
While-reading Activities /
Key language points
?15,Not only should the users know where
the resources locate,but also he should
know some operating commands concerned,
?Not only 后面谓语倒置,
?Not only ….,but also,不仅 …… 而且,此词组
要遵循就近原则。
四川邮电职业技术学院 65
While-reading Activities /
Key language points
?16,与本单元课题有关的电信术语或用语,
?network resource网络资源
? information services 信息服务
?remote terminals 远程终端
? interconnected systems 互连的系统
?wireless channels无线信道
? textual messages 文本信息
?protocol协议
?hypertext protocol超文本协议