1.chain gang 用铁链拴在一起劳动的囚犯队
　　2.Eyewitnesses say it was a scene straight out of a black and white movie from the 1950s.
　　目击者说这仿佛是直接取自20世纪50年代黑白电影的一幕。
　　句中宾语从句省略了引导词that . straight为副词，意为“直接地”
　　3.Watched over by guards with guns， they raised their legs in unison and made their way to the edge of the highway， Interstate 65. 他们在荷枪实弹的警卫的看守下，步伐一致地迈动双腿，向着65号州际公路路边走去。
　　watched over 为过去分词短语作伴随状语。
　　make one‘s way to 朝…走去
　　the highway，interstate 65 （美国）65号州际高速公路
　　4.Many people believe it is an effective way to get criminal to pay back their debt to society.
　　许多人相信这是一种让罪犯向社会还清债务的有效途径。
　　it是形式宾语
　　5.They reacted sharply to the treatment they are given. 他们强烈反抗他们所受到的待遇。
　　they are given 为定语从句，修饰 the treatment
　　Prisoner one ： “This is like a circus . A zoo . All chained here to a zoo .We‘re all animals now.”
　　6.All chained here to a zoo.
　　此句为省略句，谓语动词are 被省略 ， 应为all are chained here to a zoo.意为：所有的人都被锁链拴住，这里成了动物园。
　　7.Six out of every ten prisoners in chains are black， which is why the chain gangs call up images of slavery in centuries gone by， when black people were brought from Africa in leg irons and made to work in plantations owned by white men.
　　which引导非限定性定语从句，修饰前句话。
　　gone by过去分词短语，修饰 centuries.
　　when引导另一个定语从句，修饰centuries.
　　句中并列谓语是were brought ，（were） made to work是主语补语，因此不可以省略不动式符号to
　　8.“What they will do is make prisoners more angry， more hostile， so that when they get out of prison， they will increase the level of their criminal behavious.”
　　what引导的主语从句中有do，则在表语中不定式省略to
　　so that 引导结果状语从句
　　9.What it does is punish prisoners for the ills of society.
　　同上句 what引导的主语从句中有do，则在表语中不定式省略to，
　　10. But that‘s not an argument likely to win favour among many people in the Deep South of the United States.
　　划线部分为形容词短语作定语，修饰argument.
　　win favour 意为“赢得赞同”
　　be not likely to 不可能
　　favor 喜欢