题目内容：

    Europeans began exploring the world by sea in the 1400s. This period of discovery lasted from about 1418 to 1620.

Reasons for exploration.

A major reason for these voyages was the wish to set up sea routes between Europe and East Asia. Advances（进步）in knowledge and technology were another main reason behind these voyages of discovery.

Contributions

After they set sail on the vast ocean, explorers were able to bring the knowledge of a larger world back to Europe. In addition to the presence（存在）of hew lands, these explorations often led to the discovery of new species（物种）and new cultures of people. Those all helped open up a new world to Europe.

The Age of Exploration allowed more people to see and study the world. It brought great development to science as well as trade between East and West.

1.How did Europeans explore the world in the 1400s?

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2.How long did the exploration?

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3.Where did Europeans set up sea routes?

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4.What could explorers bring back to Europe after they on the vast ocean?

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5.The Age of Exploration helped develop science and trade between East and West didn't it?

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