Four people in England, back in 1953, stared at photo 51. It wasn't much –a picture showing a black X. But three of these people won the Nobel Prize for figuring out what the photo really showed—the shape of DNA. The discovery brought fame and fortune to scientists James Watson, Francis crick, and Maurice Wilkins. The fourth, the one who actually made the picture, was left out.
    Her name was Rosalind Franklin. 'She should have been up there,' says historian Mary Bowden. 'If her photo hadn't been there, the others couldn't have come up with the structure.' one reason Franklin was missing was that she had died of cancer four years before the Nobel decision. But now scholar doubt that Franklin was not only robbed of her life by disease but robbed of credit by her competitions.
    At Cambridge University in the 1950s, Watson and Crick tried to make models by cutting up shapes of DNA's parts and then putting them together. In the meantime, at king's college in London, Franklin and Wilkins shone X-rays at the molecule(分子). The rays produced patterns reflecting the shape.
    But Wilkins and Franklin's relationship was a lot rockier than the celebrated teamwork of Watson and Crick. Wilkins thought Franklin was hired to be his assistant. But the college actually employed her to take over the DNA project.
    What she did was produce X-ray pictures that told Watson and Crick that one of their early models was inside out. And she was not shy about saying so. That angered Watson, who attacked her in return,” Mere inspection suggested that she would not easily bend. Clearly she had to go or be put in her place.
    As Franklin's competitors, Wilkins, Watson and Crick had much to gain by cutting her out of the little group of researchers, says historian Pnina Abir-Am. In 1962 at the Nobel Prize awarding ceremony, Wilkins thanked 13 colleagues by name before he mentioned Franklin. Watson wrote his book laughing at her. Crick wrote in 1974 that 'Franklins was only two steps away from the solution.'
A.She must be considered a co-discoverer,' Abir-Am says. This was backed up by Aaron Klug, who worked with Franklin and later won a Nobel Prize himself. Once described as the 'Dark Lady of DNA', Franklin is finally coming into the light.
单选题     What is the text mainly about? ______
 
【正确答案】 B
【答案解析】 主旨大意题。通读全文,可知Franklin在发现DNA的过程中也做出了重要贡献,但却由于某些原因而不为人知。由此答案选B项:她受到了不公正的对待。
单选题     Watson was angry with Franklin because she ______.
 
【正确答案】 C
【答案解析】 逻辑推理题。由题干关键词定位至第五段前三句可知,Franklin直言不讳地指出Watson的错误,这引起了他的不满。答案为C项。
单选题     Why is Franklin described as 'Dark Lady of DNA'? ______
 
【正确答案】 D
【答案解析】 逻辑推理题。从全文可知,作者认为Franklin对DNA的发现做出了巨大的贡献,她的贡献理应得到人们的承认,却被忽略掉了。所以答案选D。
单选题     What is the writer's attitude toward Wilkins, Watson and Crick? ______
 
【正确答案】 A
【答案解析】 态度推测题。从全文知,作者肯定了Franklin的贡献,对另外三个科学家排挤、嘲弄Franklin的行为表示“不满,不赞成”,所以答案选A。