填空题

Sixteen-year-old Michael Viscardi of San Diego won first (36)________ in the Siemens Westinghouse Competition in Math, Science and Technology. He showed (37)________ to a nineteen-century math problem. Michael has been (38) ________by his mother, who has a doctorate in neuroscience (神经学). He also worked on his (39) ________with a professor at a university. The National Center for Education Statistics did its (40)________research on home-schooling in 2003. Researchers found that more than one million American students learned at home. That was more than two percent of the school-age (41) ________. Michael Viscardsi, for example, has been taught mostly at home, but with (42) ________math classes at a (43)_________university. The researchers asked parents why they home-schooled their children. Thirty-one percent said the most important reason was concern about the environment of the local schools. Thirty percent said it was to provide religious instruction. Sixteen percent said they were not satisfied with the quality of the instruction in the local schools. (44) _____________________________________. An education expert said much of this increase was in cities with histories of racial tension. (45)_________________________________________. Critics of home-schooling say children need to attend school to help them learn social skills. They also say that home-schooled children do not get a very good education. Still, all fifty states and the District of Columbia permit home-schooling. (46)_________________________________________.