deny v./ n. 否定，否认;拒绝接受，拒绝给与
Neil denies breaking the window, but Im sure he did.
gap n. 裂口，裂缝
The gap between rich and poor is still widening.
Generation gap
spokesman n. 发言人;代言人
a government spokesperson
racial a. 种族的
A lot of racial prejudice still exists.
civil a. 国民的，民用的;国内的，民间的
This type of planes is mainly used for military rather than civil use.
union n. 工会，协会;结合，联合
Many workers are threatening to withdraw from the union.
liberty n. 自由，自由权;冒昧，失礼;[常]特许权，特权
For most citizens, liberty means the right to choose their own religion, politics or place of work.
punishment n. 处罚，罚，刑罚;折磨，损害
Many people think that the death penalty is too severe a punishment for any crime.
argument n. 争论，辩论;论据，理由
The children had an argument about/over what game to play.
to watch over 看守，照管，监视
The princes bodyguard was by the pool, watching over them as they played.
in unison 完全一致地
Try to sing in unison if you can.
to call up 打电话;使想起，使忆起
Why dont you call up Simon and ask him to the party?
The picture called up the old man’s memory of the war.
难句分析
1. Watched over by guards with guns, they raised their legs in unison and __ (make) their way to the edge of the highway, Interstate 65.
Six out of every ten prisoners in chains are black, (which is why the chain gangs call up images of slavery in centuries __ (go) by), when black people were brought from Africa in leg irons and made to work in plantations __ (own) by white men.
书香门第
