Last week, a pink diamond(钻石) was sold in Hong Kong, China. Experts said the estimated(预估的) price was 21 million dollars. But the diamond sold for 49.9 million dollars.

The name of the diamond is Williamson Pink Star. It has its name after two famous pink diamonds. One is called Williamson. Queen Elizabeth II got it as a gift. It was for her wedding in 1947. The other is called Pink Star diamond. It sold for 71.2 million dollars in 2017. And it was the highest price ever.

Pink diamonds are very rare(罕见的), so they are very expensive.

1.Williamson Pink Star sold for__________ dollars.

A 21 million

B 28.9 million

C 47 million

D 49.9 million

解析：选D。D细节理解题。根据第一段最后一句的“But the diamond sold for 49.9 million dollars.”可知，这颗罕见粉钻以4990万美元的高价卖出。故选D。

2.The underlined word “it” refers to__________.

A Pink Star diamond

B the wedding

C Williamson

D Williamson Pink Star

解析：选C。C词意指代题。根据划线部分前面的“One is called Williamson”可知，Williamson是一颗粉钻，是伊丽莎白二世女王曾经收到的礼物。故选C。

3.When was Pink Star diamond sold?

A In 1947.

B In 2007.

C In 2017.

D In 2022.

解析：选C。C细节理解题。根据第二段倒数第二句的“It sold for 71.2 million dollars in 2017.”可知，Pink Star diamond于2017年售出。故选C。

4.Why are pink diamonds expensive?

A Because many people want them.

B Because they are very rare.

C Because only a few can make them.

D Because it is hard to make them.

解析：选B。B细节理解题。根据最后一句“Pink diamonds are very rare, so they are very expensive.”可知，粉钻很罕见，因此它们很贵。故选B。

5.Where can we read the passage?

A In a notebook.

B In a newspaper.

C In an English book.

D In a dictionary.

解析：选B。B推理判断题。通读全文可知，本文主要讲了一颗罕见粉钻以4990万美元高价拍出的事件，是一则新闻，因此我们可以在报纸中读到本文。故选B。