13. They all seem to look alike (though they come from all over) - lean, pointed, dedicated faces, wearing jeans and sandals, eating their buns and bedding down for the night on the flagstones outside the theatre to buy the 20 seats and 80 standing-room tickets held for the sleepers and sold to them when the box office opens at 10:30 a. m.

【分析】复合句。句子主干为They all seem to look alike,破折号后修饰性短语对句子主干进行补充说明。不定式结构to buy...作目的状语；held for…和sold to… 作tickets的后置定语，其中又嵌套一个when引导的时间状语从句。
【译文】尽管来自天南海北，但他们看起来都一个样：瘦削，棱角分明，面容专注，身着牛仔裤和便鞋，啃着自带的干果面包，晚上睡在剧院外的石板上，为了赶在票房早上10:30开门时候，买到为这些露宿者准备的20张坐票和80张站票。
【点拨】l)pointed“尖的；明显的;尖锐犀利的”。2)dedicated“专注的；献身的”。3)bed down“睡下，过夜”。

14. The large, slow-growing animals were easy game,and were quickly hunted to extinction.

【分析】简单句。主语是the large slow-growing animals；and连接两个并列的谓语were和were hunted。
【译文】那些庞大而生长缓慢的动物容易被追逐，因此很快就被猎获殆尽。
【点拨】1)本句中game是“猎物”的意思。2)be hunted to extinction“被猎获殆尽”。