大学英语口语对话_大学英语口语对话谈论

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A、巧玲：hello。Let’talk about the Telephone today.We know The telephone is one of the most welcome and useful inventions.No wonder more

and more families have got to use their own telephones today.电话是目前最受欢迎和最有用的发明之一，怪不得越来越多的人已经使用了自己的电话。

The telephone makes things easy in many ways.Especially, after the mobile telephone

appears, communication becomes easier and rapider.电话在许多方面使事情变得简单，尤

其是在移动电话出现以后，通讯变得更加快捷方便。

小慧，can you talk something about telephone?

B 小慧：YES,To students and people going out for busine far away from their homes,the telephone can shorten the distance between them and their families.Thus they will get

comfort whenever they are homesick or they run into trouble.With the help of the telephone,people can keep in touch with anyone at any time and in any place for urgent help.、After all,there is this constant reminder of how he brought the human family into closer touch.毕竟有了这

样一件物品，它经常提醒人们，人类大家庭彼此得以保持更密切的联系。

B 小慧：But I don’ know the Telephone audio principles 但是我不知道 电话的传声原理

C 美容：Each phone is attached wires, an attached microphone, an earpiece

attached，Our voice into the telephone lines to carry current to the other

side of the handset, he heard our voices ；The other spoke, the sound of the

telephone line into a current spread of our handset，We heard his voice.每个电话都连着两根线，一头连着话筒，一头连着听筒，我们说话的声音变成电流通过电

话线传送到对方的听筒，他就听到我们的声音；对方说话的时候，声音也变成电流通过电话

线传到我们的听筒，我们就听到他的声音。With the development of societyTransistors replaced the old vacuum tubes ,and by the 1960s communications satellites eliminated

the neceity of landlines.Today, bundles of gla fibers carry calls on laser beams of light.随着社会的发展晶体管取代了真空管，到了60年代，通信卫星又消除了对地面线路的需要。

今天，一束束的玻璃纤维用激光传递人们彼此间的通话。

美容问：You all get the你们都明白了吧~？我们集体回答“是yes，ok”

A 巧玲：慧敏，Do you know the history of the telephone?

D 慧敏：Yes ,第一部电话的诞生It's the birth of the first telephone in theJune 2, 1875

telephone was born, Alexander by the Americans.Graham.Bell invented the telephone

1875年6月2日电话诞生,是由美国人亚历山大.格雷厄姆.贝尔发明的电话.The first voice to travel over a wire was even a surprise for its inventor.Alexander Graham

Bell.He was experimenting in his laboratory late one night, and quite by accident he

succeeded in transmitting a meage to his aistant in the next room.What Mr.Bell could

not know at the time was that that night in 1875 would mark the start of a revolution in

communications.下面我们看一个视频了解详细的历史吧~please look at theVideo.（放完后

~ B 小慧：下面由来我介绍电话种类型有哪些~ The following types of origin of

introduced me to call what ~

Our study should end here我们的学习就到这里吧~ Thank you谢谢大家