Long long ago, when the great library of Alexandria burned, one book was saved．But it was not a valuable book, so a 　　1　　 man, who could read a little, bought it for a few coins．

　　The book 　　2　　 very interesting, but between its pages there was something very interesting indeed．It was about the secret of the“Touchstone(试金石)”!The touchstone was a small pebble(鹅卵石)that could 　　3　　 any common metal into pure gold．The writing explained that it was 　　4　　 among thousands and thousands of other pebbles that looked exactly like it．But the 　　5　　 was this; The real stone would feel warm, while ordinary pebbles were 　　6　　．

　　So the man sold his few belongs, bought some simple supplies, camped on the beach, and began 　　7　　 pebbles．He knew that if he picked up common pebbles and threw 　　8　　 down again, he might pick up the same pebble hundreds of times．So, when he felt one that was cold, he threw it into the sea．He spent a whole day 　　9　　 this, but none of them was the touchstone．Yet he went on and on this way．Pick up a pebble．Cold－throw; it into the sea．Pick up 　　10　　 Cold－throw it into the sea．

　　The days stretched into weeks and the weeks into months and the months 　　11　　 years．One day, however, about mid-afternoon, he picked up a pebble and it was warm．He threw it into the sea 　　12　　 he realized what he had done．He had formed 　　13　　 a strong habit of throwing each pebble into the sea that when the one he wanted came along, he 　　14　　 threw it away．

　　So it is with chance．　　15　　 we don't pay enough attention, it is easy to miss a chance when it is in hand and it's just as easy to throw it away．

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完形填空，先通读下面的短文，掌握其大意，然后在每小题所给的四个选项中，选出可以填入空白处的最佳选项。

　　“Where is the university(大学)? "This is a question that many visitors to Cambridge(剑桥)ask．But no one can give them a 　　1　　 answer, for there is no wall to be found 　　2　　 the university．The university is the city．

　　You can find classroom buildings, 　　3　　 , museums and offices of the university all over the city．And most of its members are the students and 　　4　　 of the thirty-one colleges(学院)．．

　　Cambridge was already a 　　5　　 town long before the first students and teachers arrived 800 years ago．It grew up by the river Granta, and the river was once 　　6　　 the Cam．A 　　7　　 was built over the river as early as 875．So the town got its name "Cambridge"．

　　In the fourteenth and fifteenth centuries more and more land was used for college buildings．The town grew much 　　8　　 in the nineteenth century after the opening of the railway in 1845．Cambridge became a 　　9　　 in 1951 and now it has a population of over 100, 000．Many young students in other countries 　　10　　 to study at Cambridge．Thousands of people from all over the world come to visit the university town．It has become a famous place all around the world．

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