Once a very rich man and his son collected valuable paintings by famous artists like Picasso，Van Gogh and Monet．

Later，the son left to join the army．After a few weeks，the old man received a letter saying his son had died while taking another soldier to a hospital．The old man became very lonely and sad．

One day，a soldier visited the old man and gave him a painting﹣it was a portrait（肖像）of his son．The painting of his son became the old man's most valuable item．He told his neighbors it was the greatest gift he had ever received．The following spring，the old man died．

All of the old man's paintings would be sold at an auction（拍卖会）．The auction began with the painting of the old man's son．

"Who will open the price at ＄100？"the auctioneer asked．Moments passed and no one spoke or raised their hands．Someone said，"Who cares about that painting？Let's get on to the good ones．"More voices followed in agreement．"No，we must sell this one first，"replied the auctioneer．"Now，who will take the portrait of the son？"

Finally，a good friend of the old man spoke，"Ten dollars!""Will anyone go higher？"called the auctioneer．After more silence he said："Going once…going twice…Sold!"The auctioneer then announced that the whole auction was over．"According to the father's will，whoever takes the son's portrait gets the whole collection．"The auctioneer said．

Because of the father's love，whoever took the son got it all．

46．How did the old man's son die？　　

A．He died of a serious heart disease．

B．He died while taking another soldier to a hospital．

C．A car hit him when he went home．

D．He was killed by a doctor．

47．What was the first painting to be sold at the auction？　　

A．The paintings by famous artists．

B．The gift given by the old man's neighbors．

C．The portrait of the old man's son．

D．The most expensive collection of the old man．

48．Which of the following is TRUE according to the passage？　　

A．At the beginning of the auction，everyone realized the importance of the painting of the son．

B．The painting of the old man's son was as popular as the other paintings．

C．The old man's will was to give away the whole collection to charity．

D．The old man's good friend got the whole collection for only ten dollars．

49．What's the best title of the passage？　　

A．Love is Sharing．       B．An Expensive Painting

C．A Hot Auction            D．Caring About the Person You Love．