Do you know Stephen Hawking? He's one of the most well-known（scientist）on space and time in the world. He was born in England in 1942. Hawking is （study）how the universe began and how it ends.

    When he studied math and science at Oxford University, he fell(serious) ill, which made him unable to speak or breathe. Till now, he can't move or feed(him). however, he has a wheelchair with  special computer, with which he can communicate with others.

    he was facing all these difficulties, he refused to give up his hope of living. Because his illness, it was difficult for him to draw diagrams or to write. So he started(think) in pictures. With this new way of thinking, he is respected by people in the world.

    Once he(invite) to China to give lectures. His self-confidence and humorous conversations impressed us deeply.

    He once said, “When something unfair happens, is no need to worry about it! You just have to do the best in your own situation.”