Question

6．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 they're 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（姿勢(shì)） 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 80percent，thought sitting on the balls helped them concentrate（專注） better：
"Besides，they're fun，b"says Pownall．
According to WittFitt，b a company that has sold balls to more than 200schools，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 strongly 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 24states in America，three provinces in Canada and Japan．"says Witt．

48．Sitting on exercise balls canA．
A．improve students'attention            B．make students smarter
C．keep students moving around           D．help students become fit
49．According to the passage，the company WittFittC．
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
50．It can be seen from the passage thatB．
A．exercise balls have no legs           B．Pownall works as a teacher
C．students hate exercise balls          D．exercise balls are filled with sand
51．The passage mainly tells us aboutB．
A．the shape of exercise balls         B．the use of exercise balls
C．the number of exercise balls        D．the inventor of exercise balls．

Answer 1

分析 本文介紹了美國(guó)人發(fā)明的一種新型椅子-運(yùn)動(dòng)球椅的用處：這種椅子不僅能糾正學(xué)生的坐姿，而且還能提高學(xué)生的注意力，因此備受學(xué)生和老師的青睞．

解答 48．A 細(xì)節(jié)理解題．根據(jù)第三段最后一句"By using exercise balls instead of common chairs，teachers find students'posture and attention improved．"可知這種椅子能提高學(xué)生的注意力．故選A．
49．C 細(xì)節(jié)理解題．根據(jù)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 創(chuàng)建了這家公司．故選C．
50．B 細(xì)節(jié)理解題．根據(jù)第四段第一句"Dotti Pownall，a fifth-grader teacher in West Virginia，…"可知，Pownall是一名教師．故選B．
51．B 主旨大意題．縱觀全文，都在圍繞運(yùn)動(dòng)球椅的好處這個(gè)話題來介紹的．故選B．

點(diǎn)評(píng) 做題時(shí)要在理解好文意的基礎(chǔ)上，與題目有機(jī)的結(jié)合，從文章中找到相關(guān)細(xì)節(jié)性的句子與選項(xiàng)細(xì)細(xì)比對(duì)，進(jìn)行選擇或推理判斷，選出符合文章內(nèi)容的正確選項(xiàng)．做題注意靈活，有時(shí)可采用排除法或直選法確定出最終答案．