考试辅导:
学历
外语
电脑
资格
建筑
会计
医药
技能
才艺
出国
管理
方法
全站导航:
资讯
作文
诗词
文学
励志
教材
板报
语文
数学
英语
物理
化学
生物
政治
地理
历史
考试
论文
范文
计划
国学
高校
短信
教程
English
简历
幼儿
字典
词典
成语
QQ
PPT
试题
课件
教案
求学网 >> 考试辅导 >> 职称英语经验交流

职称英语考试理工类A级阅读理解精选练习(3)

  Space-Age Archeology   Its a strange partnership, but a very effective one: Satellites and space-shuttle-carried radar are helping archeologists. How? By seeing through sand or through treetops to locate important archeological sites.   Take, for example, the second 1981 flight of the Space Shuttle Challenger. During that mission, a powerful, experimental radar was pointed at a lifeless stretch of desert in Egypt called the Selima Sand Sheet . To everyones surprise, the radar penetrated through the sand to the harder rock beneath. On the surface, there is a little indication that Africas Sahara Desert was never anything but a desert. When the archeologists studied the radar images, they saw what seemed to be impossible: there was sand-buried landscape that was shaped by flowing water; traces of ancient riverbeds appeared to be over nine miles wide, far wider than most sections of the present-day Nile River. Today, the area is one of the hottest, driest desert in the world.   More recently, Landsat 4, a special Earth-mapping satellite, aided in the discovery of ancient Mayan ruins in Mexico. Landsat can, with the help of false-color imagery, see through much of the area. Armed with these maps, a five-person expedition took to the air in a helicopter.   41 With the help of the space-shuttle-carried radar, archeologists found   B traces of ancient riverbeds under the Sahara Desert.   D a mountain beneath the Sahara Desert.   A It was an old avenue,   C It was shaped by flowing water.   43 The stream-rounded pebbles and Stone-Age axes which were found along the ancient river banks show that   B ancient people didnt know how to make weapons.   D early humans were good at fighting with sharp weapons.   A old New England fences.   C the expedition members.   45 Which of the following best summarizes the main information of the passage?   B Without high-tech, the archeologists work would come to a stop   D High-tech makes the archeologists work more fruitful.

  

展开阅读全文

上一篇 1 2 3 下一篇

下载此内容:职称英语考试理工类A级阅读理解精选练习(3).docx

相关信息:

职称英语考试综合类阅读理解的精选练习题(2)

Smart Bra to Help Detect Breast Cancer Soon, a bra, universally used to provide support and comfort to the breasts, might offer health benefits, for scientists at the University of Bolton are develop...(查看全文

职称英语考试理工类的阅读理解中英文对照精选(1)

1. The next time you do a card trick-remember this. Youre playing with history. The playing cards we use today are much like those used for hundreds of years. The most interesting things are the suit...(查看全文

职称英语考试理工类阅读理解的中英文对照精选(2)

1. On behalf of all of your American guests, I wish to thank you for the incomparable hospitality for which the Chinese people are justly famous throughout the world. I particularly want to pay tribu...(查看全文

职称英语考试理工类阅读理解必备的精选练习题(4)

Saving Money Where you save your money often depends on what you are saving for. If you are saving to buy a CD or to go to a concert, then probably you would keep your money somewhere in your room. O...(查看全文

职称英语考试理工类阅读理解必备的精选练习题(2)

U. S. Life Expectancy Hite New High Life expectancy rates in the United States are al an all-time high, with people born in The finding reflects a continuing trend of increasing life expectancy that...(查看全文

相关栏目导航

资讯 作文 诗词 文学 励志 教材 板报 语文 数学 英语 物理 化学 生物 政治 地理 历史 考试 论文 范文 计划 国学 高校 短信 教程 English 简历 幼儿 字典 词典 成语 QQ PPT 试题 课件 教案