In the course of economic development, there comes a time     1     the old must give way to the new.     2     (keep) balance between progress and the protection of cultural sites can be a great challenge. In the 1950s, the Egyptian government wanted     3     (build) a dam. However, the project led     4     protests, because the water from the dam would likely damage a number of cultural relics. So the government turned to the UN for help. A committee     5     (establish) to deal with the challenge and the experts investigated the issue, conducted tests and made a     6     (propose) to save the cultural relics.

    7     (final), the work began in1960. The temples and other cultural sites were taken down piece by piece and then moved and put back together again in a new place. Over the next 20 years,     8     (thousand) of engineers and workers rescued countless cultural relics. In 1980, the project ended,     9     was considered a great success. It shows that if a problem seems too difficult for a single nation, the global community can sometimes provide a     10     (solve).

When foreigners come to China, they may be surprised at Chinese’s special fondness and     1     (prefer) for seals (印章). To Chinese, seals are an art of deep cultural roots,     2     combines the essence of both calligraphy (书法) and sculpture and inspires generations to study to appreciate and to collect.

Seals are believed     3     (come) out as early as 8,000 years ago after our ancestors could make pottery wares and had private belongings. They tried to make marks on     4     (they) own possessions to prevent them from     5     (steal). When the first dynasty     6     (found), the king began to use seals to power and to show royal credits (赏识). Only the king’s special seal was then called “Xi”,     7     (represent) the highest authority. The first emperor of China, Qin Shi Huang, had his “Xi”     8     (make) out of the invaluable and beautiful jade “Heshi Bi”.

Then the local governments also needed seals for the same function. Meanwhile, private seals were carved in     9     (vary) of lucky characters and vivid animal patterns.     10     (gradual), the sphragistics (印章学) came into being.