Sitting on a chair all day in school can make anyone want to move around. So, more and mor

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 sitting on exercise balls instead of chairs , teachers find students’ posture(姿势) and attention improve.
Dottie Pownall, a fifth-grade teacher in West Virginia, USA, has been using balls as chairs since December 2008. “The students love them”, she says. Pownall took a survey(调查) of her students. She found that 80% of the students thought sitting on the balls helped them pay more attention to what they were learning.
The teacher, Pisa Witt, felt so strongly about the use of balls as chairs, she started Witt Fitt. This company encourages the use of the balls. And the company educates not only teachers but also students on how to use them. “Our products are used in 24 states, three provinces in Canada, Puerto Rico (波多黎各) and Japan,” says Witt, “ Research shows that sitting on the balls makes them sit up straighter（直的）. You can slouch(低头垂肩地坐)on a ball,” says Witt, “but it feels bad.” Because the students are moving, their blood (血液) increases. That carries more oxygen( 氧气) to the brain , so the kids have more energy and can pay attention longer.
“Besides, they’re fun.” says Pownall.
【小题1】What will happen if a student sits on a chair all day in school? The student will .A．pay more attention to his lessonsB．be funC．like to move aroundD．sit up straighter【小题2】How long has Dottie Pownall used the balls?A．About four years.B．Only one year.C．In 2008.D．Since he was a fifth-grade teacher.【小题3】In how many countries are the balls used as the students’ chairs?A．Four.B．Three.C．Two.D．One.【小题4】Teachers choose balls instead of chairs because sitting on balls helps the kids .A．improve the students’ posture and attentionB．slouch on the chairsC．have funD．Both A and C are correct answers【小题5】Which is better for kids to study in class, sitting on a chair or sitting on a ball?A．Sitting on a chair.B．Sitting on a ball.C．They are the same.D．We don’t know.C

(答案→)C 解析：【小题1】由第一句话Sitting on a chair all day in school can make anyone want to move around.在学校里坐在椅子上太久了就想四处走动一下。 可知答案选C。【小题2】根据第二段第一句中的 since December 2008自从2008年12月份起可知到现在大约三年了，故答案选A。【小题3】通读全文可知这种balls在文中在这四个国家应用：USA, Canada, Puerto Rico ('波多黎各) and Japan，故答案是A。【小题4】由第一段的最后一句和最后一段的最后一句可知这种球的功效，故答案选D。【小题5】通读全文可知本文讲的是坐在球上学习的好处，故答案B正和此意，所以答案选B。

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