听力原文:W: Jane was always unwilling to practice on the piano.
M: She should have practiced regularly to be a pianist.
What do we know about Jane?
A. She is a pianist now.
B. She is not a pianist now.
C. She is willing to practice.
D. She is practicing regularly.
W: OK. I'll wait here at the ladder.
What is the man doing now?
A. He is waiting at the ladder.
B. He is brushing the wall.
C. He is painting the wall.
D. He is passing his brushes and pots.
What can we infer about Hunt?
A. Hunt still keeps his smoking habit.
B. Hunt is now in hospital.
C. Hunt stops smoking now.
D. Hunt's got hospitalized.
The September 11 terrorists demonstrated expertise (专门技术) in systems theory. They knew that complex systems always have two sides. One is creative and allows for great Speed and efficiency (for example, civil aviation aircraft and high-rise office towers). The other is potentially destructive and can generate major catastrophes(using civil aviation against the high-rise target).
All of our current complex systems, including information systems, biotechnology, air travel, nuclear power, and the mail system, have these two major characteristics. All are susceptible (易受影响的) to organizational error (the Challenger tragedy) , human error (Chernobyl) , and terrorism (Oklahoma City). Yet terrorism is the darkest and most dangerous side of our complexity.
In the case of the World Trade Center, terrorists deliberately exploited the "destructive side" of aircraft and highly populated office towers. If one simply joins hijacking with car bombing, and magnifies their effects, then September 11 is the result.
The lesson we must learn from September 11 is that our management practices, private and public, are one-dimensional. Whether it is with regard to civil aviation safety or real estate, our world is dominated by concerns about profitability. These constrain us from implementing needed and proven safety procedures in aviation and high-rise office design. The focus on profitability also pushes our systems to grow unreasonably large, rendering them more vulnerable to terrorist attacks.
Approximately 76% of the criteria used to measure organizational efficiency are financial. Only 24% consider nonfinancial indicators such as health, safety, or the global impact that organizations have on communities and the world in general. Devoting more of our attention to nonfinancial indicators can help us develop new strategies to match the complexity of fighting terrorism. The fields of risk and crisis management already use some of these strategies.
What is the main idea of the passage?
All events are full of opportunities for learning.
B. We can enhance our future security by learning more about our society's complexities.
C. The September 11 terrorist attack is the most destructive disaster of all.
D. Terrorism poses a formidable threat to international security.