精选优质文档-倾情为你奉上Unit2 阅读理解专练阅读理解 请阅读下面短文，根据短文内容从每小题所给的A、B、C、D四个选项中选出最佳选项。AWelcome to Guide Dogs Training Center, boys and girls! First let me tell you something about guide dogs. In 1918 a doctor and his pet dog walked with a soldier who was blind. The doctor went in the hospital for a short time. When he came out, he saw his pet dog had guided the soldier on the other side of the hospital yard safely. So he taught a dog to guide a person and it worked out well. Germany helped start a
