1 B考查短语．根据上文：Tut was a gum-collector（树胶采集者），可知Tut是一个树胶采集者．所以此处：and his job was to （1）gum in the forest．是说他的工作是寻找树胶．故选B．

　　2 C考查动词．根据上文：Tut was a gum-collector（树胶采集者），and his job was to （1）gum in the forest．可知Tut是一个树胶采集者，他的工作是寻找树胶．所以此处：To do this，he had to（2）the trees．表示为了做这个，他不得不爬树．故选C．

　　3 D考查名词．根据下文：There they found Tikal（蒂卡尔），the city that the Mayans （玛雅） had built many hundreds of （5）before．可知他们发现了蒂卡尔，玛雅人的城市．所以此处：He looked out across the trees and saw the tops of some old （3）．应该是他看见了很多古老的建筑．故选D．

　　4 B考查形容词．根据上文：Tut didn't really know what he had seen，可知Tut真的不知道看见的是什么．所以此处转折：but he knew it was something （4）表示但他知道是一些特殊的事物．结合语境这里应该是特殊的意思．故选B．

　　5 D考查名词．根据上文：He looked out across the trees and saw the tops of some old （3）．可知他看见了很多古老的建筑．所以此处：There they found Tikal（蒂卡尔），the city that the Mayans （玛雅） had built many hundreds of （5）before．应该是他们发现了蒂卡尔，玛雅人的城市，在几百年前就修建了．故选D．

　　6 B考查连词．根据上文：For a long time before that day，local people had known that somewhere in the forest there was an old Mayan city，可知在那一天之前的很长时间，当地的人都知道，在森林里有一个古老的玛雅城市．此处：，（6）no one had seen it for centuries．这里应该转折表示但是没有一个人见过．故选B．

　　7 A考查动词．根据上文：Between 200and 900AD，the city of Tikal had been the center of Mayan civilization （文明） in the area，可知公元200年到900年之间，城市蒂卡尔是玛雅文明的中心．以及下文：Nobody knows why!After 1000AD，the forest began to cover it and people （8）that it was there．没有人知道为什么，公元1000年以后，森林开始覆盖了它，并且人们也忘记了它在那儿．所以此处：but then the Mayans （7）．应该是玛雅人消失了．故选A．

　　8 C考查动词．根据上文：After 1000AD，the forest began to cover it 可知公元1000年以后，森林开始覆盖了它．所以此处：people （8）that it was there．应该是并且人们也忘记了它在那儿．故选C．

　　9 D考查介词．根据句子：two British people had gone to Guatemala and had written a report（9）Mayan treasures in the forest，可知两个英国人去瓜地马拉写了一篇有关于在森林里玛雅人的财富的报道．reportabout表示报道某件事情．故选D．

　　10 D考查代词．根据上文：local Indians had told European travelers about a great city hidden in the trees，可知当地的印第安人曾告诉欧洲游客在树林里藏着一座城市．此处：but no one would listen to（10）．应该是但是没有人听他们的话．这里指代的是印第安人，用them来指代．故选D．