document.write ("<b>上一篇</b>：<a href='/DocHtml/699/2014/1/8/6520459834636.html'>Unit 7 重难点归纳</a><br><b>下一篇</b>：<a href='/DocHtml/699/2014/1/6/6503019034634.html'>Unit5 It must be belong to Carla.</a>")