初三英语阅读填词When the Great Library of Alexandria burned,the stor

初三英语阅读填词
When the Great Library of Alexandria burned,the story goes that one book was saved.But nobody thought it was a v______ book.A poor man,who could read a little,bought it for a few coins.
The book wasn't very interesting,but between its pages there was something very interesting i________.It was a thin strip of wellum on which was written the secret of the"Touchstone"!
The touchstone was a small pebble that could t________ any common metal into pure gold.The writing e_________ that it was lying among thousands of other pebbles taht looked exactly like it.But the secret was that the real stone would feel w________,while ordinary pebbles were cold.
So the man camped on the seashore and began testing pebbles.He knew that if he picked up ordinary pebbles and threw them down again b______ they were cold,he might pick up the same hundreds of t________.So,when he felt one that was cold,he threw it into the sea.He spent a whole day doing this but none of them was the touchstone.Y_________ he went on and on this way.
One day,however,about mid-afternoon,he picked up a pebble and it was warm.He threw it into the sea b_________ he realized what he had done.He had formed suach a strong habit of throwing each pebble into the sea that when the one he wanted came along,he still threw it away.
So it is with opportunity.U____ we are careful,it's easy to fail to recognize an opportunity when it is in hand.

1.valueable
2.including
3.turn
4.expressed
5.warm
6.because
7.touchstones
8.yet
9.before
10.unless