题目内容
根据短文内容及首字母提示,填写所缺单词。
When the Great Library of Alexandria burned,the story goes that one book was saved.But nobody thought it was a v__1__ 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__2__.It was a thin strip of vellum(羊皮纸)on which as written the secret of the “Touchstone”!
The touchstone was a small pebble(卵石)that could t__3__ any common metal into pure gold.The writing e__4__ that it was lying among thousands of other pebbles that looked exactly like it.But the secret was that the real stone would feel w__5__,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__6__ they were cold,he might pick up the same pebble hundreds of t__7__.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_8__ 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__9_ he realized what he had done.He had formed such 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(机会).U__10__ we are careful,it's easy to fail to recognize an opportunity when it is in hand.
1.valuable 2.indeed 3.turn 4.explained 5.warm
6.because 7.times 8.Yet 9.before 10.Unless