[填空题]In a world governed by mutual fear and mistrust, the most dangerous problem for the UN to deal with is ______.

[填空题]In a world governed by mutual fear and mistrust, the most dangerous problem for the UN to deal with is ______.

[简答题]

Earthquakes are something that most people fear. There are some places that have few or no earthquakes. Most places in the world, however, have them regularly. Some places, like Iran and Guatemala have them frequently. Countries that have a lot of earthquakes are usually quite mountainous.
The most talked about earthquake in the United States was in San Francisco in 1906. Over 500 people died in it. The strongest one in North America was in 1964. It happened in Alaska. Some earthquakes are not always tile ones that kill the most people. In 1755, one of the strongest earthquakes ever recorded was felt in Portugal. Around 20,000 people died.
In 1923, a very powerful earthquake hit the Tokyo-Yokohana area of Japan. A hundred and forty thousand people died. Most of them died in fires which followed the earthquake.
One of the worst earthquakes ever was in China in 1976. It killed a large number of people. The worst earthquake ever reported was also in China. 40

[单项选择]There has been the fear （　） the world will become too crowded to accommodate so many people.
A. which
B. where
C. about
D. that

[单项选择]Fear is the most destructive force in the world, for it （　） motivation and creativity.
A. clutches
B. cripples
C. compels
D. conceives