1-5: CABDD　　 6-10: BCCBA　　 11-15: CACCA

10.as a result　 11.live on　 12.die out　 13.in turn　 14.have an effect on　 15.on sale

答案：1.burn down　 2.take away　 3.a series of　 4.shoot…to death 5. in honour of

6.in vain　 7.make a new beginning　 8.in huge numbers　 9.make agreements with

10.They killed the bison and cut off the skins,which were sent by the rail to cities to be sold.

key:

9.Large group of native Americans were forced to move away from their old hunting grounds.

8.They hunted bison,a type of cattle used to exist in huge numbers on the plains of America.

7.The South still has many problems to deal with,and the people there are determined to make a new beginning.

6.Like many other Southern cities,Atlanta is a place where hope and faith have replaced with fear and doubt.

5.The injustices led Dr King to organise nonviolent demonstrations aimed at end segregation.

4.Despite of the hardships of the years,the people of Atlanta continued to develop the area.