雅思阅读辅导：美国空中交通管制区域的划分

　　阅读段落

　　To meet this challenge, the following elements were put into effect. First, ATC extends over virtually the entire United States. In general, from 365m above the ground and higher, the entire country is blanketed by controlled airspace. In certain areas, mainly near airports, controlled airspace extends down to 215m above the ground, and, in the immediate vicinity of an airport, all the way down to the surface. Controlled airspace is that airspace in which FAA regulations apply. Elsewhere, in uncontrolled airspace, pilots are bound by fewer regulations. In this way, the recreational pilot who simply wishes to go flying for a while without all the restrictions imposed by the FAA has only to stay in uncontrolled airspace, below 365m, while the pilot who does want the protection afforded by ATC can easily enter the controlled airspace.

　　段落大意

　　本段介绍了为了应对美国空中交通复杂的局面所采取的措置让航空交通管制范围遍布全国、在受管制区域和不受管制的区域的区分，以及这样分区的好处。

　　阅读笔记

　　To meet this challenge：

　　ATC extends over the entire United State

　　Controlled airspace: FAA regulations apply uncontrolled airspace: fewer regulations

　　逻辑关系

　　1. 对比

　　The recreational pilot who simply wishes to go flying for a while without all the restrictions imposed by the FAA has only to stay in uncontrolled airspace, below 365m.

　　The pilot who does want the protection afforded by ATC can easily enter the controlled airspace.