In spring 2016,Liza Goldberg asked scientists at NASA's Goddard Space Flight Center if she coul

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In spring 2016,Liza Goldberg asked scientists at NASA's Goddard Space Flight Center if she could do research there. There was a problem,though.She was just 14 years old, and NASA's internship(实习)program only accepts students starting at age 16.
David Lagomasino and Temilola Fatoyinbo are NASA satellite experts. They saw Liza's request. In it, she talked about how she had studied trees in her own backyard to learn about climate change. The two NASA scientists were impressed." This girl sounds great," Lagomasino remembers saying." Let's bring her in.” They made a special role for her outside the internship program.
Lagomasino and Fatoyinbo thought Liza could help them use satellite data to map mangroves, a small tree that grows in muddy forests on the coastlines of many tropical(热带的)countries. Mangroves are very important as they store huge amounts of carbon, which makes them helpful for fighting global warming. They are also home to fish that millions of people depend on for food.
Less than two years later, Liza has developed what might be the world's first satellite-based system to determine where mangroves are in trouble. The work uses data from four satellites. It covers mangrove growth and loss,rainfall, agriculture and city growth.
Lagomasino and Fatoyinbo brought Liza in during the summer before she started high school. The teen had seen mangroves only once before, during a trip to Fort Myers,Florida.Soon, she would see many more, at least on her computer screen.
Liza learned that half of the world's mangroves had disappeared.She was shocked and motivated to do something." I wanted to create some kind of solution”, she said.She would even work during school breaks or at home on her projects. Liza's hard work is starting to pay off.Already, environmental groups are eager to use her system to make their work more effective.
Now that she has turned 16, Liza has finally joined NASA's official internship program.
5.Why was Liza outside the internship program at first?
A. She knew little about global warming.
B. She didn't show her talent properly.
C. She didn't meet the required age.
D. She lacked the experience of data-collecting.
6.Why are mangroves so important?
A. They are food for fish.
B. They keep a balanced ecosystem.
C. They forecast climate change.
D. They are commercial crops.
7.What does the underlined word"It”in Paragraph 4 refer to?
A. The data.          B. The satellite.
C. The system.        D.The work.
8.Which of the following can describe Liza's work in NASA?
A. It will lead to a future job with NASA.
B. It took up her school time.
C. It earned her fame.
D. It is fruitful.                                                         
                                          
答案 5-8    CBAD
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