6如表为二战前后非洲部分文学作品高频词统计表（部分），其变化的主要原因是<table style="border: currentColor; margin-left: -0.6pt; border-collapse: collapse; mso-border-left-alt: 0.5000pt solid windowtext; mso-border-top-alt: 0.5000pt solid windowtext; mso-border-right-alt: 0.5000pt solid windowtext; mso-border-bottom-alt: 0.5000pt solid windowtext; mso-border-insideh: 0.5000pt solid windowtext; mso-border-insidev: 0.5000pt solid windowtext; mso-padding-alt: 6.0000pt 6.0000pt 6.0000pt 6.0000pt;" border="1" cellspacing="0" _dj="MsoNormalTable"><tbody><tr><td style="padding: 3.75pt 6pt; border: 1pt solid rgb(0, 0, 0); mso-border-left-alt: 0.7500pt solid rgb(0, 0, 0); mso-border-top-alt: 0.7500pt solid rgb(0, 0, 0); mso-border-right-alt: 0.7500pt solid rgb(0, 0, 0); mso-border-bottom-alt: 0.7500pt solid rgb(0, 0, 0);" valign="center">二战前高频词</td><td style="border-width: 1pt 1pt 1pt medium; border-style: solid solid solid none; border-color: rgb(0, 0, 0) rgb(0, 0, 0) rgb(0, 0, 0) currentColor; padding: 3.75pt 6pt; mso-border-left-alt: none; mso-border-top-alt: 0.7500pt solid rgb(0, 0, 0); mso-border-right-alt: 0.7500pt solid rgb(0, 0, 0); mso-border-bottom-alt: 0.7500pt solid rgb(0, 0, 0);" valign="center">二战后高频词</td></tr><tr><td style="border-width: medium 1pt 1pt; border-style: none solid solid; border-color: currentColor rgb(0, 0, 0) rgb(0, 0, 0); padding: 3.75pt 6pt; mso-border-left-alt: 0.7500pt solid rgb(0, 0, 0); mso-border-top-alt: 0.7500pt solid rgb(0, 0, 0); mso-border-right-alt: 0.7500pt solid rgb(0, 0, 0); mso-border-bottom-alt: 0.7500pt solid rgb(0, 0, 0);" valign="center">①法、英属非洲②“文明开化”③“白人”与“土著人”</td><td style="border-width: medium 1pt 1pt medium; border-style: none solid solid none; border-color: currentColor rgb(0, 0, 0) rgb(0, 0, 0) currentColor; padding: 3.75pt 6pt; mso-border-left-alt: none; mso-border-top-alt: 0.7500pt solid rgb(0, 0, 0); mso-border-right-alt: 0.7500pt solid rgb(0, 0, 0); mso-border-bottom-alt: 0.7500pt solid rgb(0, 0, 0);" valign="center">①古埃及、非洲历史②殖民统治罪恶③黑人英雄</td></tr></tbody></table>