有放弃科学研究。(move；give up)
4．1988年他的书《时间简史》出版了。 (publish)
5．他对科学的热爱使他成为科学史上的一流人物。(a leading figure)
www.gkxx.com One possible version：
学习网Stephen Hawking is one of the greatest scientists in the world as a result of
He was born and brought up in a well-educated family in Oxford.He
his scientific discoveries.
graduated from Oxford University.In the 1960s，he was diagnosed with motor neurone disease.
Though he couldn’t move and couldn’t speak，he still spoke to others through a special computer and didn’t give up his research.His book A Brief History of Time was published in 1988.
His devotion to science has made him a leading figure in science.
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