河北省辛集市2015
高考英语信息匹配及任务型阅读训练（9）及答案
《2015高考复习》任务型读写
if you can find a tree which has been cut down，you will see many rings，or circles，on the base of the trunk.by learning to read these rings，you can find out about the tree's life.
the number of rings tells you how old the tree is.each year，new wood is formed on the outside of the tree.this new wo
