Joker found one of the biggest diamonds in the world in his own back yard. He sold the stone to a diamond dealer for over three hundred thousand dollars. In New York, the diamond was resold. This time for almost eight hundred thousand dollars. The true value of a diamond is never known until it has been cut. Once cut successfully, its value can increase a thousand times. It’s easy to understand why the owner of the Joker diamond went to the best diamond cutter he knew, Kaplan. The cutter studied the diamond for twelve whole months.

When he felt he was ready to start work, he discovered a flaw (瑕疵). He had to begin with his calculations (計(jì)算) all over again, or he might have made the stone useless. Six more months passed, and Kaplan finally said to the owner, “I m ready to start my work. There will be one excellent diamond that be comparable to any in the world, plus eleven small diamonds of first-class quality.” Kaplan waited a few more days until be felt he was in the best physical and mental (精神的) condition possible. He picked up his tools and held his breath as he made the first blow. The diamond split (切開(kāi)) exactly as he promised.

1.Joker found one of the biggest diamonds in the world _______.

A. in a minute B. at the foot of a big mountain

C. in his own backyard D. in a garage

2.A diamond dealer is a person _______,

A. in the diamond business B. who stores diamonds

C. who cuts diamonds D. who sells diamonds

3.When the diamond was resold, _______.

A. the dealer lost a lot of money

B. Joker made some more money

C. the dealer got 800,000 dollars

D. Kaplan got 800,000 dollars

4.The owner of the diamond thought that if the diamond was cut successfully it might be worth _______.

A. $300,000 B. $500, 000

C. $300, 000,000 D. $800, 000, 000

5.Kaplan studied the diamond for _______.

A. one and a half years B. more than half a year

C. over eighteen months D. more than nineteen months

 

1.C

2.A

3.C

4.D

5.C

【解析】

試題分析：文章介紹了一個(gè)好的鉆石，切割是最重要的，能讓鉆石的價(jià)值成倍增加

1.C細(xì)節(jié)題。根據(jù)第一段第一句Joker found one of the biggest diamonds in the world right in his own back yard.說(shuō)明是在自己家后院發(fā)現(xiàn)的，故C正確。

2.A推理題。根據(jù)第二行He sold the stone to a diamond dealer他把寶石賣(mài)給a diamond dealer，說(shuō)明a diamond dealer一定是做珠寶生意的人，故A正確。

3.C細(xì)節(jié)題。根據(jù)第一段the diamond was resold---this time for almost eight hundred thousand dollars.說(shuō)明C正確

4.D計(jì)算題。根據(jù)第一段3,4行the diamond was resold---this time for almost eight hundred thousand dollars.但是下文Once cut successfully, its value can increase a thousand times.說(shuō)明如果切割合理，其價(jià)值將增加1千倍，那么D正確。

5.C計(jì)算題。根據(jù)第一段最后一句The cutter studied the diamond for twelve whole months.和第二段第三行Six months passed,第四行Kaplan waited a few more days說(shuō)明超過(guò)了一年半，故A正確

考點(diǎn)：科普類閱讀。

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