阅读理解。 Sitting on exerci balls brings more than a smile to students and t

题文

阅读理解。          Sitting on exerci balls brings more than a smile to students and teachers.      Some fourth-graders at Conrad Weir West Elementary School in Womelsdorf love their new chairs--probably becau they're not really chairs at all. The kids are sitting on the air-filled balls. But different from tho just for exerci, the have small legs that keep them from rolling. Sitting on a chair all day in school can make anyone want to move around. So, more and more teachers are letting students have a ball. By using exerci balls instead of common chairs, teachers find students' posture (姿势) and attention improved.      Dotti Pownall, a fifth-grader teacher in West Virginia, has been using balls as chairs since December 2008."The students love them." she says. Pownall took a survey of her students. She found that 80 percent, thought sitting on the balls helped them concentrate (专注) better: "Besides, they're fun," says Pownall.      According to WittFitt,  a company that has sold balls to more than 200 schools, they can improve kids' posture and classroom behavior.     Exerci ball chairs are getting popular in classrooms, from preschool to college. Some adults (成人) even u them at work. Lisa Witt felt so strongly about the u of balls as chairs that she started WittFitt. She said the company not only encourages the u of balls but also educates teachers and students on how to u them."We ll balls in 24 states in America, three provinces in Canada and Japan." says Witt. 1. Sitting on exerci balls can ______. A. improve students' attention B. make students smarter C. keep students moving around D. help students become fit 2. According to the passage, the company WittFitt ______. A. began to produce balls in 2008 B. lls balls in 24 countries C. was t up by Lisa Witt D. is famous around the world 3. It can be en from the passage that ______. A. exerci balls have no legs B. Pownall works as a teacher C. students hate exerci balls D. exerci balls are filled with sand 4. The passage mainly tells us about ______. A. the shape of exerci balls B. the u of exerci balls C. the number of exerci balls D. the inventor of exerci balls

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1-4     ACBB

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