阅读下列文章,选词填空。 Situation Awareness ( 情景意识 ) Situation awareness , or SA, is the perception of environmental elements within a volume ( 数量、体积 ) of time and space, the understanding of their meaning, and the projection ( 预示 ) of their 1 in the near future. It is also a field of study concerned with perception of the environment critical to decision-makers in complex, dynamic ( 动态的 ) areas from 2 , air traffic control, power plant operations, military command and control — to more ordinary but nevertheless complex 3 such as driving an automobile or motorcycle. Situation awareness (SA) involves being aware of what is happening around you to understand how information, s, and your own actions will 4 your goals and objectives ( 目的 ) , both now and in the near future. 5 SA or having inadequate SA has been identified as one of the primary factors in accidents attributed to 6 error . Thus, SA is especially important in work domains where the information flow can be quite high and poor 7 may lead to serious consequences, such as piloting an airplane, functioning as a soldier, or treating critically ill or injured patients. H aving complete, 8 and up-to-the-minute SA is essential where technological and situational complexity ( 复杂 ) on the human decision-maker are a concern. SA has been recognized as a critical, yet often elusive ( 难以理解的 ), foundation for successful 9 across a broad range of complex and dynamic systems, including aviation and air traffic control , 10 response and military command and control operations, and offshore oil and nuclear power plant management (236 words)