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Sitting on exercise balls brings more than a smile to students and teachers.
Some fourth-graders at Conrad Weiser West Elementary School in Womelsdorf love their new chairs-probably because theyre not really chairs at all.
The kids are sitting on the air-filled balls. But different from those just for exercise， these 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 exercise 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， theyre fun，b says Pownall.
According to WittFitt，b a company that has sold balls to more than 200 schools， they can improve kids posture and classroom behavior.
Exercise ball chairs are getting popular in classrooms， from preschool to college. Some adults (成人) even use them at work.
Lisa Witt felt so stron gly about the use of balls as chairs that she started WittFitt. She said the company not only encourages the use of balls but also educates teachers and students on how to use them. We sell balls in 24 st ates in America， three provinces in Canada and Japan. says Witt.
1. Sitting on exercise 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. sells balls in 24 countries
C. was set up by Lisa Witt D. is famous around the world
3. It can be seen from the passage that ______.
A. exercise balls have no legs B. Pownall works as a teacher
C. students hate exercise balls D. exercise balls are filled with sand
4. The passage mainly tells us about______.
A. the shape of exercise balls B. the use of exercise balls
C. the number of exercise balls D. the inventor of exercise balls
参考答案：本文介绍了美国人发明的一种新型椅子运动球椅的用处：这种椅子不仅能纠正学生的坐姿，而且还能提高学生的注意力，因此备受学生和老师的青睐。
1.A细节理解题。根据第三段最后一句By using exercise balls instead of common chairs， teachers find students posture and attention improved.可知答案选A。
2.C细节理解题。根据最后一段第一句Lisa Witt felt so strongly about the use of balls as chairs that she started WittFitt.可知，Lisa Witt 创建了这家公司。
3.B细节理解题。根据第四段第一句Dotti Pownall， a fifth-grader teacher in West Virginia，...可知， Pownall是一名教师。
4.B主旨大意题。纵观全文，都在围绕运动球椅的好处这个话题来介绍的。
Sitting on exercise balls brings more than a smile to students and teachers.
Some fourth-graders at Conrad Weiser West Elementary School in Womelsdorf love their new chairs-probably because theyre not really chairs at all.
The kids are sitting on the air-filled balls. But different from those just for exercise， these 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 exercise 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， theyre fun，b says Pownall.
According to WittFitt，b a company that has sold balls to more than 200 schools， they can improve kids posture and classroom behavior.
Exercise ball chairs are getting popular in classrooms， from preschool to college. Some adults (成人) even use them at work.
Lisa Witt felt so stron gly about the use of balls as chairs that she started WittFitt. She said the company not only encourages the use of balls but also educates teachers and students on how to use them. We sell balls in 24 st ates in America， three provinces in Canada and Japan. says Witt.
1. Sitting on exercise 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. sells balls in 24 countries
C. was set up by Lisa Witt D. is famous around the world
3. It can be seen from the passage that ______.
A. exercise balls have no legs B. Pownall works as a teacher
C. students hate exercise balls D. exercise balls are filled with sand
4. The passage mainly tells us about______.
A. the shape of exercise balls B. the use of exercise balls
C. the number of exercise balls D. the inventor of exercise balls
参考答案：本文介绍了美国人发明的一种新型椅子运动球椅的用处：这种椅子不仅能纠正学生的坐姿，而且还能提高学生的注意力，因此备受学生和老师的青睐。
1.A细节理解题。根据第三段最后一句By using exercise balls instead of common chairs， teachers find students posture and attention improved.可知答案选A。
2.C细节理解题。根据最后一段第一句Lisa Witt felt so strongly about the use of balls as chairs that she started WittFitt.可知，Lisa Witt 创建了这家公司。
3.B细节理解题。根据第四段第一句Dotti Pownall， a fifth-grader teacher in West Virginia，...可知， Pownall是一名教师。
4.B主旨大意题。纵观全文，都在围绕运动球椅的好处这个话题来介绍的。
