2 Y
3 Y
4 NG
5 a trip to the Mir Space Station
6 a space hotel
7 small gravitational pull
8 the fuel of spacecraft
9 $50,000
10 space travel
47 as a blessing
48 simplified
49 their house need to be simplified.
50 different
51 make a list of the unnecessary things before unloading them
52 B the instinctive fear human beings feel when faced with potential danger
53 D the amygdala plays a vital part in human and animal responses to potential danger
54 A a little worry will do us good if handled properly
55 D Understand the situation and be fully prepared.
56 B understandable
57 B Their intense desire for money.
58 C He could not get his students to understand the importance of ethics in business.
59 D there was no place for ethics and morality in business dealings
60 A the tendency in business school to stress self-interest over business ethics
61 A the calls for reform will help promote business ethics