话题十三 通讯、科普知识和现代技术

最新精编全国中考英语话题作文满分范文汇总目录话题一：个人情况、人物介绍话题二：兴趣与爱好话题三：家庭、朋友与周围的人话题四：个人情感话题五：学校生活话题六：日常活动话题七：科普知识与现代技术话题八：人际关系话题九：计划与愿望话题十：节假日活动话题十一：历史与地理话题十二：文娱与体育话题十三、健康话题十四：购物话题十五：天气话题十六：饮食话题十七：语言学习话题十八：旅游和交通话题十九：世界与环境话题二十：文学与艺术话题二十一：自然话题二十二：社会话题二十三：热点话题话题二十四：周围的环境话题一：个人情况人物介绍1、假如你在碰到外国朋友，请你介绍进入NBA美国球队的中国球员易建联的情况。

易建联生日1987.10.27出生地广东身高 2.12米经历2003年他成为大学生college)2000年1月入选中国国家篮球队(National Basketball Team)2007年7月进入美国NBA，继姚明后的第二个中国球员爱好他喜欢听流行音乐、玩电脑。

其他现在还在努力学习英语。

温馨提示：主题鲜明、语句通顺、意思连贯、适当发挥、拼写正确、书写工整。

字数80左右。

th.1987. He is 2.12 metersYi Jianlian ,a famous basketball player, is from Guangdong, China. He was born on October 27tall. This handsome boy became a college student in 2003.He was chosen to play for the National Basketball Team inJanuary, 2004. This young man is the second Chinese player in NBA after Yao Ming. In his spare time, he likes listeningto pop music and playing computer games. Now he is trying his best to learn English well.2、假如你是李华，你从报纸上看到2008北京奥运会志愿者的招聘广告。

话题20. 科普知识与现代技术一、相关短语1. a newly-designed robot 新设计的机器人2. achieve great success 获得巨大成功3. with the development of science and technology 随着科学技术的发展4. be convenient to sb. 对某人来说方便5. download the information from the Internet 从互联网下载信息6. a technological revolution 一项科技革命7. make a great difference 产生巨大影响8. change one’s life 改变某人的生活9. improve the quality of life 提供生活质量10. launch a satellite 发射卫星11. broaden our knowledge 拓展我们的知识12. make contributions to 对……作出贡献13. be famous at home and abroad 在国内外享誉盛名14. benefit from 从……中获益15. be based on 以……为基础16. apply to 应用二、必备句型1. With the help of computers，it will be possible for humans to work at home.在电脑的帮助下，人类在家工作成为可能。

2. This kind of newly-designed robot is programmed and controlled by a computer. Once you press the button，it will clean the floor for you.这种新设计的机器人由电脑编程和控制。

Topic Twelve Popular Science and Modern Technology 科普知识与现代技术话说中考此类话题涉及科普知识和最尖端的现代化技术，是中考中难度最大的一部分，专业术语较多，词汇量大，多以说明文呈现在试卷中。

这就要求学生在平时多了解科普知识，关注尖端技术，热爱现代化，培养爱国主义精神。

解题思路：整体把握文章大意，关注出题趋势，熟悉解题方法。

走进中考(兰州·2010)There have been many great inventions or things that changed the way we live．The first great invention was the one that is still very important today — the wheel．This made it easier to carry heavy things and to travel long distance．For hundreds of years after that there were few inventions that as much effect as the wheel．Then in the early 1800s the world started to change．There was little unknown land left in the world．People didn't have to explore much any more．They began to work instead to make life better．In the second half of the 19th century many great inventions were made．Among them were the camera，the light and the radio．These all play a big part in our daily life today．The first part of the 20th century saw more great inventions．The helicopter in 1909，movies with sound in 1926，the computer in 1928，jet planes in 1930．This was also a time when a new material was first made．Nylon came out in 1935．It changed the kind of clothes people wore．The middle part of the 20th century brought new ways to help people get over diseases．They worked very well．They made people healthier and allowed them to live longer．By the 1960s most people could expect to live to be at least 60．By this time most people in developed countries had a very good life．Of course new inventions continued to be made．But man now had a desire(渴望) to explore again．The earth was known to man but the stars were not．Man began looking for ways to go into space．Russia made the first step．Then United States took a step．Since then other countries，including China and Japan，have made their own steps into space． In 1969 man took his biggest step away from the earth．Americans first walked on the moon．This is certainly just a beginning，though．New inventions will some day allow us to do things we have never yet dreamed of．阅读短文，根据短文内容选择最佳答案。

一.计算机技术（一）通信技术现代通信技术主要包括数字程控交换技术、综合业务数字通信网技术、光纤通信技术和数字微波、卫星通信技术等领域。

1、数字移动通信技术数字移动通信是移动体之间或移动体与固定体之间的无线电信息传输和交换。

它安装方便，组网迅速，机动性、灵活性、经济效益均好，是无线通信中有强大生命力的领域。

它与光纤通信构成了现代通信技术的两大发展趋势。

2、3G3G是指第三代移动通信技术，3G与2G的主要区别是在传输声音和数据的速度上的提升，它能够在全球范围内更好地实现无线漫游，并处理图像、音乐、视频流等多种媒体形式，提供包括网页浏览、电话会议、电子商务在内的多种信息服务。

国际电信联盟（ITU）在2000年5月确定WCDMA、CDMA2000和TD-SCDMA三大主流无线接口标准，写入3G技术指导性文件《2000年国际移动通讯计划》。

其中TD-SCDMA 标准是由我国独自制定的3G标准。

3、物联网物联网是指通过射频识别（RFID）、红外感应器、全球定位系统、激光扫描器等信息传感设备，按约定的协议，把任何物品与互联网连接起来，进行信息交换和通讯，以实现智能化识别、定位、跟踪、监控和管理的一种网络。

物联网已经成为继计算机、互联网与移动通信网之后的世界信息产业第三次浪潮。

物联网就是“物物相连的互联网”。

这有两层意思：第一，物联网的核心和基础仍然是互联网，是在互联网基础上的延伸和扩展；第二，其用户端延伸和扩展到了任何物品与物品之间，进行信息交换和通讯。

物联网在我国的应用也早已存在，比如商品条形码、RFID等等，都是通过射频技术，通过感应物体上置入的芯片来获知其具体信息。

4、光纤通信光纤通信就是利用光波在光导纤维中传递各种信息。

光纤是用石英玻璃制造的，由两层组成。

光纤通信的优点：（1）通信容量大；（2）传输损耗低；（3）经济、轻便；（4）抗干扰能力强；（5）保密性能好（二）计算机基础知识计算机系统包括硬件系统和软件系统两大部分。