英语翻译One kind of TDD looks like a small typewriter.It has rows of buttons.Each button is marked with a letter.Messages are spelled out by pushing the correct buttons.The TDD connects to a telephone through a device called a modem.The modem cha

英语翻译One kind of TDD looks like a small typewriter.It has rows of buttons.Each button is marked with a letter.Messages are spelled out by pushing the correct buttons.The TDD connects to a telephone through a device called a modem.The modem cha
英语翻译
One kind of TDD looks like a small typewriter.It has rows of buttons.Each button is marked with a letter.Messages are spelled out by pushing the correct buttons.The TDD connects to a telephone through a device called a modem.The modem changes electronic signals from TDD into sounds the telephone can understand.Some TDDs produce messages on paper.Others show them on a television or computer screen.
For example,a deaf girl named Linda wants to call her boy friend,Mark,who is also deaf.First,Linda puts the telephone receiver into the modem.Then she calls Mark’s telephone number by pushing the correct numbered buttons on the telephone.A light on her TDD shows that Mark’s telephone is ringing.
A different light will show if Mark’s telephone is used.Linda will have to wait to call later.If Mark’s telephone is not used,he will see a light going on and off.Then he will know that some one is trying to call him.
46.According to the passage,TDD is ___________.
〔A〕widely used,especially by the deaf
〔B〕widely used by all the deaf in the United States.
〔C〕the same as a small typewriter
〔D〕a special telephone system designed for the deaf
47.How does TDD works according to the passage?
〔A〕It is connected to a telephone through a typewriter.
〔B〕It changes electronic signals into sounds the telephone can recognize.
〔C〕It is connected to a telephone through a modem.
〔D〕It is connected to a telephone through a television.
48.How does the deaf person know that there is a call for him?
〔A〕There will be a message on the screen.
〔B〕The light is sparkling.
〔C〕The telephone rings.
〔D〕The light will be on until he receives the call.
49.How do the deaf people use the TDD?
〔A〕Put the receiver into the modem,and then push the correct numbered buttons.
〔B〕Connect the TDD to their telephones.
〔C〕Send their message to the computer screen.
〔D〕Pick up the receiver and dial the correct number.
50.The author writes this article in order to ___________.
〔A〕persuade us to buy TDDs.
〔B〕tell us that it’s easy for the deaf to make a phone call.
〔C〕tell us some information about TDDs.
〔D〕show that people are kind enough to help the deaf to call each other.

英语翻译One kind of TDD looks like a small typewriter.It has rows of buttons.Each button is marked with a letter.Messages are spelled out by pushing the correct buttons.The TDD connects to a telephone through a device called a modem.The modem cha
一种拓展署看起来像一个小打字机.它已排按钮.每个按钮标记的信.邮件所阐明的推动正确的按钮.拓展署连接到电话通过某种装置称为调制解调器.调制解调器的变化,电子信号从拓展署到声音的电话是可以理解的.一些tdds产生的信息文件.其他显示,他们对电视或电脑屏幕上.
例如,一个聋哑女孩命名为琳达要叫她的男孩的朋友,马克,谁是聋人也.首先,琳达把电话接收到调制解调器.然后她呼吁马克的电话号码推正确编号的按钮电话.1光照对她的TDD表明,马克的电话铃声.
不同的角度将显示,如果马克的电话是使用.琳达将要等待通话后.如果马克的电话是没有用,他将看到一个光去上下车.然后他会知道一些,一个是试图请他.
46 .根据通过,TDD的是______1_____ .
〔 1 〕广泛使用,特别是由聋人
〔 b 〕广泛使用的所有聋人在美国.
〔 c 〕 ,同时作为一个小打字机
〔日〕一个特别的电话系统,专为聋人
47 .如何拓展署工程,根据通过?
〔 1 〕 ,这是连接到一个电话,通过打字机.
〔 b 〕它改变成电子信号的声音,电话可以承认.
〔 c 〕 ,它是连接到电话通过调制解调器.
〔日〕 ,它是连接到一个电话,透过电视.
48 .请问聋的人都知道,有一个要求他呢?3
〔 1 〕会有一个讯息,在屏幕上.
〔 b 〕轻是波光粼粼.
〔 c 〕的电话铃声.
〔日〕轻将,直到他接到电话.
49 .如何聋人人使用的TDD
〔 1 〕把接收到调制解调器,然后把正确的编号按钮.
〔 b 〕连接的TDD他们的电话.
〔 c 〕发送他们的信息传递给计算机屏幕上.
〔日〕拿起接收机和拨号正确的号码.
50 .作者写此文章在以___________ .
〔 1 〕说服我们购买tdds .
〔 b 〕告诉我们,这很容易为聋人,使打电话.
〔 c 〕告诉我们一些资料,约tdds .
〔日〕表明,人民是一种并不足以帮助聋人打电话对方