20．Boys do best with"as few girls as possible"in English lessons at primary and secondary school，Steven Proud，a research student at Bristol University，will tell the Royal Economic Society's conference．But when it comes to maths and science，both boys and girls at primary school achieve up to a tenth of a grade more when there is a high proportion（比例） of girls in the class，Proud found．
Proud tracked boys'and girls'test results at the ages of seven（是否改為阿拉伯?dāng)?shù)字7為好，與后面對(duì)應(yīng)），11，14 and 16 in 16，000 schools in England between 2002 and 2004 for his PhD．He analysed the test scores to see whether the proportion of girls in a year group made a difference to the results of both genders in maths，science and English．Boys consistently perform up to a tenth of a grade worse when they study English with high numbers of girls as opposed to few or no girls，Proud found．The more girls there are in an English class，the worse boys perform．This is particularly the case in primary schools，he discovered．Girls，who outperform boys in English at every stage at school，are unaffected by the number of boys in their English classes．
He said："The results imply that boys would benefit at all ages from being taught English with as small a proportion of girls as possible．In maths and science，the results tend to imply that both boys and girls benefit from having more girls in the classroom．Boys may do worse in English when there is a high proportion of girls in their class because they realise that the girls are better than them and feel defeated．"

45．The passage mainly talks about．B
 A．the problem of the class sizes  
 B．girls'influence on boys in school
 C．the genders of the students in the class
 D．the reasons why boys do worse in English
46．In Proud's view，the number of girls in English classes has more obvious influence on boysA．
 A．in primary schools                           B．in secondary schools
 C．a(chǎn)t every stage of school                     D．in high schools
47．Proud discovered that in maths and scienceB．
 A．girls always perform better than boys
 B．having more girls in the class has a positive effect on both boys and girls
 C．boys can benefit a lot more than girls with more girls in the class
 D．boys achieve up to a tenth of a grade worse than girls when there're few or no girls in the class
48．The reason why boys are worse at English with a high proportion of girls in the class is thatA．
 A．boys are discouraged by how well girls are doing in English
 B．boys show less passion for English study than girls
 C．girls are more willing to observe the classroom discipline
 D．girls have more gift for language study than boys．

分析 研究人員今天宣稱，當(dāng)班上女生人數(shù)較多時(shí)，男生的英語就會(huì)變得較差．而人們以往普遍認(rèn)為，在學(xué)校中，女生對(duì)男生總是有積極影響．布里斯托大學(xué)的研究生史蒂文•普勞德將在皇家經(jīng)濟(jì)學(xué)會(huì)的會(huì)議上宣布：對(duì)于小學(xué)與初中的英語課而言，女生越少，男生成績(jī)?cè)胶茫欢返傥?#8226;普勞德同時(shí)發(fā)現(xiàn)在數(shù)學(xué)與科學(xué)學(xué)科上，女生人數(shù)多對(duì)男女生都有積極影響--成績(jī)可以提高10%.2002年至2004年間，普勞德為了完成他的博士研究課題，跟蹤查詢了英格蘭16000所學(xué)校里7歲、11歲、14歲、16歲的男女生測(cè)試成績(jī)．普勞德發(fā)現(xiàn)，相對(duì)班上沒有或者有很少女生的班級(jí)而言，當(dāng)班上女生人數(shù)較多時(shí)，男生的英語成績(jī)總是會(huì)下降10%．普勞德發(fā)現(xiàn)，這種現(xiàn)象在小學(xué)尤其明顯，女生越多，男生的英語就學(xué)得越差．而女生的英語成績(jī)則不受男生人數(shù)影響，她們?cè)趯W(xué)校的所有學(xué)習(xí)階段英語表現(xiàn)都要強(qiáng)過男生．普勞德稱："研究結(jié)果表明，如果能降低英語課上的女生人數(shù)比例，所有年齡組男生的英語成績(jī)都將受益．在數(shù)學(xué)和科學(xué)學(xué)科上，研究結(jié)果表明女生多對(duì)班級(jí)中的男女生都有好處．當(dāng)班里女生比例高時(shí)，男生的英語成績(jī)會(huì)更差，因?yàn)樗麄円庾R(shí)到女生比他們做得好而感到受挫．"

解答 B篇：45-48：BABA
45題答案是B．考查文章大意．整篇文章講述了學(xué)校里女生數(shù)量多少對(duì)男生的英語，數(shù)學(xué)等成績(jī)的影響．故答案是B．
46題答案是A．考查細(xì)節(jié)．根據(jù)This is particularly the case in primary schools，he discovered可知這種現(xiàn)象在小學(xué)尤其明顯，女生越多，男生的英語就學(xué)得越差．故答案是A．
47題答案是B．考查細(xì)節(jié)．根據(jù)In maths and science，the results tend to imply that both boys and girls benefit from having more girls in the classroom．可知在數(shù)學(xué)和科學(xué)學(xué)科上，研究結(jié)果表明女生多對(duì)班級(jí)中的男女生都有好處．故答案是B．
48題答案是A．考查細(xì)節(jié)．根據(jù)Boys may do worse in English when there is a high proportion of girls in their class because they realise that the girls are better than them and feel defeated可知當(dāng)班里女生比例高時(shí)，男生的英語成績(jī)會(huì)更差，因?yàn)樗麄円庾R(shí)到女生比他們做得好而感到受挫．故答案是A．

點(diǎn)評(píng) 本文講述了女生數(shù)量對(duì)男生英語數(shù)學(xué)等成績(jī)的影響．題目涉及多道細(xì)節(jié)理解題，做題時(shí)需要結(jié)合原文和題目有針對(duì)性的找出相關(guān)語句進(jìn)行仔細(xì)分析，結(jié)合選項(xiàng)選出正確答案；考查文章大意的題則需要對(duì)整篇文章的中心有深刻的理解，進(jìn)而結(jié)合選項(xiàng)選出正確的答案．

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