19．Jack Andraka from Maryland won the grand prize at the 2012 Intel International Science and Engineering Fair．It is the largest high school science competition in the world．The Maryland teenager is the youngest winner of the $ 75，000 prize．He was chosen from among 1，500 students in 70 countries．
Jack Andraka invented a test for pancreatic cancer（胰腺癌）．He started to learn it after losing a close family friend to the disease．"I went on the Internet and I found that 85 percent of all pancreatic cancers are found late，when someone has less than a 2% chance of survival，"he says，"and I was thinking，'That's not right．We should be able to do something．'"He found that early discovery is important to increasing the chances of surviving the disease．
The Maryland teenager asked to work in a laboratory at Johns Hopkins University in Baltimore and was allowed．There he developed a simple paper test，which can recognize the disease in a single drop of blood．His test has proven correct 90% of the time．It also is 100 times more sensitive than other tests．"It costs 3 cents per test，and then it takes only 5 minutes to run，"he said．
Jack's success wouldn't have been possible without Anirban Maitra，a professor at Johns Hopkins．He was the only person among the 200 researchers Jack wrote to who showed interest in his project．"I was very surprised that this was a 15-year-old boy who was writing this．I wanted to meet this clever young man and see what he wanted to talk about and so I called him over for an interview．"
Jack worked in Professor Maitra's laboratory，completing his project in 7 months．The government has given the Maryland teenager patent rights to the pancreatic caner test．He is now talking with companies about developing the test into a simple product．
Whatever happens，the professor believes Jack Andraka's name is one we will be hearing again over the next 10 to 20 years．
71．What made Jack Andraka research pancreatic cancer？C
A．A high school task．
B．Doubts about the present test．
C．Losing a friend．
D．A professor's encouragement．
72．Jack Andraka's research on pancreatic cancerA．
A．proved to be very successful
B．was 100 times cheaper than other tests
C．got support from companies easily
D．was finished at the high school of Maryland
73．We can infer from the passage that Jack AndrakaD．
A．got support from others easily
B．was highly thought of by companies
C．was the only one who won a prize
D．left a deep impression on Professor Maitra
74．The underlined sentence in the last paragraph suggests Jack Andraka willB．
A．become rich
B．make contributions continually
C．get a good job
D．make products to treat cancer
75．What's the best title for the passage？A
A．Teenage cancer researcher．
B．Jack Andraka's fights against cancer．
C．Research on pancreatic cancer．
D．Intel International Science and Engineering Fair．
分析 文章主要讲了一个叫Jack的男孩因为自己发明的胰腺癌纸测而获得了国际科学和工程奖，并得到专利权．
解答 71．C 细节题．根据文章第二段He started to learn it after losing a close family friend to the disease，可得知Jack Andraka失去了一个朋友后，他决定研究胰腺癌，应选择C．
72 A 细节题．根据文章第三段There he developed a simple paper test，which can recognize the disease in a single drop of blood．His test has proved correct 90% of the time．It also is 100 times more sensitive（敏感的）than other tests，我们能发现这个paper test很成功，可得知应选A
73 D 细节题 根据文章第四段Professor说的话：I was very surprised that this was a 15-year-old who was writing this，可知Maitra教授对他印象深刻，所以应该选择D
74．B 句意理解题．划线句直译就是接下来我们还会有机会听到Jack的名字，即他会继续在科学领域做贡献，所以选B
75 A 标题选择题．文章主要讲了Jack对于胰腺癌的研究，所以应该选A
点评 本文是新闻题材，关注此类文章的特征：新闻的主题往往在第一段，最后常常有总结的段落．中间部分是对新闻细节的展开说明．所以在阅读时要关注首段和尾端，把握主旨；解题时要关注中间的细节，根据题干和选项中的关键词或句定位细节，比对选项和文章细节确定答案．
