【仁爱版】九年级上册英语课文朗读音频MP3下载

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 The Importance of Computers

电脑的重要性
Since computers were invented in the USA in the 1950s, they have become very important in many areas of work and leisure.
从20世纪50年代，美国发明了电脑以后，它就在人们的工作和休闲领域有很重要的作用。
There is no doubt that computers are very useful in technology and business.
毫无疑问，电脑在科技和商业领域作用重大。
In space, computers have been used to control the speed and direction of a spaceship.
在太空中，电脑可以用来控制宇宙飞船的速度和方向。
With the help of computers, doctors can find diseases easily and slove other problems.
在电脑的帮助下，医生能够轻而易举地发现疾病并解决其他问题。
For example, tiny computers which are inside patients' bodies can keep their hearts beating normally.
比如，病人体内的微型电脑能够让他们的心脏正常跳动。
In factories, robots are controlled by computers that are like human brains. They can do work that is dangerous to humans.
在工厂中，可以用类似人脑的电脑来控制机器人。它们可以做很危险的工作。
In business, computers are used to place and cancel orders. They are also making the workplace safer and better.
在商业领域，电脑是用来设置或取消命令的。它们还能让工作场所更安全更好。
Since the Internet came into being, people's lives at home have changed, too.
电脑出现以后，人类的生活也发生了改变。
More and more people have personal computers that are used to play games and watch movies.
越来越多的人有私人电脑用来玩游戏或看电影。
Thanks to the Internet, people can do shopping and do business at home.
有了网络，人们可以在家里购物或办公。
Instead of writing letters on paper, people communicate by sending e-mails and chatting on line.
人们交流时不再用纸写信，而是发送邮件或在网上聊天。
The whole world is connected. The Internet is making the world smaller, like a village.
整个世界都联系在一起。网络让地球变得更小，像个村子一样。
Computers have improved our lives, but they have brought problems, too.
电脑改善了生活，但是也带来了问题。
For instance, if we work on computers too long, we may get headaches or sore eyes.
例如，如果我们用电脑工作太久，可能会头疼，眼睛酸涩。
If we play computer games too much, we won't have enough time to study or exercise.
如果我们玩太多电脑游戏，就没有足够的时间学习或锻炼。
Besides, not everything we read on the Internet is true or good for us.
此外，我们在网上看到的信息并不一定都是真实有益的。
Computers help us at work and at home, but they must be used properly.
电脑在工作和家庭中都能帮助我们，但是我们应当正确使用。