剑桥雅思考试全真试题集8资料下载
以下是剑桥雅思考试全真试题集8的简要内容，本书非常适合学生自学的习题解答和听力录音文本，各位烤鸭可以好好看看。同时也可以点击下方的链接或者是扫描二维码进入官方交流群来获取。
内容简介
《剑桥雅思考试全真试题集8》有4套完整的学术类雅思全真试题;2套培训类雅思阅读与写作全真试题;各种题型的全面介绍以及剑桥大学考试委员会采用的评分系统解析;非常适合学生自学的习题解答和听力录音文本;可影印使用的答题卡，方便考生体验真实的考试模式;2张听力录音光盘。
目录
Introduction
Test
Test
Test
Test
General Training： Reading and Writing Test A
General Training： Reading and Writing Test B
Tapescripts
Answer Key
Model and sample answers for Writing tasks
Sample answer sheets
Acknowledgements
精彩书摘
An accident that occurred in the skies over the Grand Canyon in 1956 resulted in the establishment of the Federal Aviation Administration (FAA)to regulate and oversee the operation of aircraft in the skies over the United States， which were becoming quite congested。 The resulting structure of air traffic control has greatly increased the safety of flight in the United States， and similar air traffic control procedures are also in place over much of the rest of the world。 Rudimentary air traffic control (ATC) existed well before the Grand Canyon disaster。As early as the 1920s， the earliest air traffic controllers manually guided aircraft in the vicinity of the airports， using lights and flags， while beacons and flashing light swere placed along cross-country routes to establish the earliest airways。 However，this purely visual system was useless in bad weather， and， by the 1930s， radio communication was coming into use for ATC。 The first region to have some thing approximating todays ATC was New York City， with other major metropolitan are as following soon after。
In the 1940s， ATC centres could and did take advantage of the newly developed radar and improved radio communication brought about by the Second World War，but the system remained rudimentary。 It was only after the creation of the FAA that fullscale regulation of Americas airspace took place， and this was fortuitous， for the advent of the jet engine suddenly resulted in a large number of very fast planes，reducing pilots margin of error and practically demanding some set of rules to keep everyone well separated and operating safely in the air。
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