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第1段
1 .<-NARRATOR:-> Listen to part of lecture from a history class.
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第2段
1 .<-FEMALE PROFESSOR:-> So we've been talking about life in ancient times, and today I want to discuss an important aspect of ancient civilizations...
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2 .the economy. As the economies of ancient civilizations developed over time and became more complex, certain changes tended to occur.
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3 .Let's talk about a couple of the changes that happened as the economies of ancient civilizations developed.
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第3段
1 .One of the key economic changes was in the way that people paid for goods and services.
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2 .As their civilizations developed,
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3 .many began to use currency ...
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4 .uh...money
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5 .to pay for goods and services, rather than trading with each other.
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6 .A monetary system made it easier to make purchases...
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7 .because people could buy from anyone,
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8 .not just those who wanted to trade.
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9 .So, for example, say a man who baked bread wanted a new coat.
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10 .Well, with a monetary system, the man could buy a new coat from the coat maker with money.
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11 .This was better than trading,
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12 .because the coat maker might not want to trade a coat for the bread maker's bread.
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第4段
1 .Now another economic change was that ancient civilizations began to acquire items from far away.
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2 .In the past, people would only trade locally ...
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3 .but as their civilizations developed,
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4 .they began trading with other people in distant places...
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5 .so they were able to acquire goods they wouldn't have otherwise.
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6 .For example, the ancient Romans never had silk fabric...
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7 .until they started trading with the Chinese,
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8 .who lived a great distance from them.
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9 .Once the Romans started traveling far away, to China,
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10 .they could acquire silk...
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11 .which was highly prized by the Romans because you just couldn't get it anywhere nearby.
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