高中二年级英语(人教版)上册 Unit 1 Integrating Skills 1

　　MAKING A DIFFERENCE

　　It is not necessary to be a great scientist to make a difference, but there are things we can learn from the best minds in this world. Great scientists like Stephen Hawking always want to know more. They are never satisfied with a simple answer and are always looking for new questions. The Italian astronomer Galileo Galilei was so curious that he used a microscope and a telescope in order to be able to take a closer look at things both great and small. By asking why, how and what if, curious minds find new ideas and solutions.

　　If knowledge is power, as Sir Francis Bacon wrote in 1597, then perhaps creativity can be described as the ability to use that power. Scientists must be creative and use their imagination all the time. When Zhang Heng, the Chinese astronomer and geographer, wanted to draw a map of the heavens, he was not satisfied with a simple paper map. Instead, he built a model that could move in order to show how the position of the stars changed from season to season.

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