6．Rock art is the name given to pictures drawn on rock by ancient peoples．In the American Southwest，rock art can be seen on the walls of caves and mountains．Many of these places are in the Four Comers area，where the states of Arizona，Colorado，Utah，and New Mexico meet．More than 7，000 rock art places have been found just in Utah，where the area's dry climate （气候）has helped keep the art．
There are three forms of rock art．The first is petroglyphs，which are pictures carved （雕刻）into the surface of rock．A sharp （尖利的）stone may have been used as a carving tool．A heavy stone may have been used to hit the sharp stone into the surface．The second form of rock art is pictographs，which are pictures painted on the rock．The paint was made from plants and trees．The artists painted with fingers，brushes made from hair，or bird bones．The third kind of rock art is geoglyphs，which are designs made in the ground by taking away stones．
Some rock art shows faces，hands，animals，and trees．Other pictures are symbols such as lines，circles，and squares．Some scientists think these symbols marked the location of water or good hunting grounds．Some think the symbols were put there during special celebrations．Others think the symbols showed the movement of planets and stars．Still others believe that they are just doodles．
Some rock art may be a form of writing．Large scenes are shown on mountains．Some scenes seem to tell a story．A hunting scene may include animals and people with hunting tools．A scene with many people holding hands could mean friendship．Rock art in caves may have been a way to decorate the artist's home．
Some rock art in the Southwest is about 200 years old．Other rock art may be 10，000 years old．Scientists think an ancient people called the Anasazi created the older works．They were farmers and lived in caves．
34．The writer mainly wantsA
A．to introduce an ancient art form
B．to describe pictures drawn on rock
C．to tell the history of a certain area
D．to solve the mystery of old symbols
35．According to the passage，what are"doodles"probably like？A
A．They are carelessly written or drawn．
B．They show different symbols．
C．They are carefully chosen or designed．
D．They have special meanings．
36．What can we learn about rock art？C
A．The artists were usually farmers and lived in caves．
B．It requires special paint made from plants and trees．
C．Most of it describes the daily life of ancient peoples．
D．Utah has the largest collection of it in the Southwest．
37．What can we infer （推断）from the passage？D
A．Petroglyphs are the easiest to be washed away by rain．
B．Artists of modern times can copy rock art rather easily．
C．The works created by the Anasazi must be pictographs．
D．Places like rainforests are not ideal for keeping rock art．
分析 文章大意：这是一篇说明文，主要介绍岩画艺术．这种艺术形式可以在洞穴或山脉的岩壁上完成，之前的岩画可能代表庆祝活动、行星和恒星的运动或猎场的位置等．世界上很多地方都发现了这种岩画，那里的气候通常干燥，有利于保持这种艺术．
解答 34．答案：A．细节理解题．根据第一句Rock art is the name given to pictures drawn on rock by ancient peoples．岩画是古代人们在岩石上画的画的名称．可知，作者主要想介绍一种古老的艺术形式．选A．
35．答案：A．细节理解题．根据句意Still others believe that they are just doodles．还有些人则认为，他们只是涂鸦．可知，意思是"它们是随便写的或画的．"，选A．
36．答案：C．细节理解题．根据第三、四段Some rock art shows faces，hands，animals，and trees．一些岩画展示了面孔、手、动物和树木．Some scenes seem to tell a story．A hunting scene may include animals and people with hunting tools．有些场景似乎讲述了一个故事，一个打猎的场景可能包括动物和狩猎工具的人．可知，岩画大多描写古代人的日常生活．选C．
37．答案：D．推理判断题．根据第一段最后一句More than 7，000 rock art places have been found just in Utah，where the area's dry climate （气候）has helped keep the art．在犹他发现了7000多个岩石艺术区，那里气候干燥，有助于保持艺术．可知，D选项"雨林之类的地方对保持岩石艺术并不理想．"，选D．
点评 阅读题型，要注重句子与句子之间、段落与段落之间逻辑关系以及对篇章的整体理解．根据所给问题选择正确选项完成试题．
