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Ⅳ.阅读理解（30分）
he was born in atlanta, georgia, on january 15, 1929. he was black. he died in his thirties, but he became world-famous during that short time. he grew up in the southeastern part of the united states. he studied at morehouse college, where he met many outstanding men whose ideas he found important and exciting. there he read the writings of thoreau, which gave him many ideas about ***.
　　after he finished studying in morehouse, he went on to study at the university of pennsylvania, harvard university, and boston university. at boston university, he met his wife, corretta. in 1954, after he got his ph. d. degree (哲学博士学位), he became a minister (牧师) of a small church in the south. then he became the leader of the black people, who were poor and powerless. he gave speeches and led parades. for his ideas and actions, he was in prison for a short time.
　　many years later, in washington d.c. he spoke to a crowd of 250,000 people. he told them "i have a dream". that speech is still famous today. in 1964 he won the nobel peace prize. his work was not finished when he died on april 4. 1968. who was he? he was martin luther king jr..
46. where did martin luther king jr. get the ideas of ***?
　　a. in the university of pennsylvania. b. in harvard university.
　　c. in morehouse college. d. in boston university.
47. why was martin luther king jr. in prison?
a. because he was a minister of a small church.
　　b. because he was black and world-famous.
　　c. because he gave a speech called “i have a dream”.
　　d. because he often gave talks in public and organized the parades .
48. how old was martin luther king jr. when he died?
　　a. twenty-five years old. b. thirty-five years old.
　　c. thirty-seven years old. d. thirty-nine years old.
49. how is martin luther king’s speech “i have a dream” ?
　　a. it is so famous that people today still remember it.
　　b. it was such a famous speech that he won the nobel peace prize.
　　c. it was famous only before he died.
　　d. it didn’t become famous until he died.