阅读理解。 Imagine looking for your lost dog. You step into a cave. But instead of the dog, you find beautiful cave paintings. You see paintings of horses, deer, and bison (野牛) that are drawn in black, brown, red and yellow. Your first question would probably be"Who did this?" This is what happened to four French boys in 1940. They found the Lascaux caves. The paintings the boys discovered in those caves are 17,000 years old. They were drawn by the ancient people called Cro-Magnons. Cro-Magnons looked much like people of today. They used tools, such as fishing nets that look familiar too. But their art was extremely good. The main cave at Lascaux is called the Great Hall of Bulls (公牛 ), which has a picture of bulls and horses in many colors. The largest animal is 18 feet long. There are smaller animals, such as bison, stags (牡鹿) and a bear. There is also a strange spotted two-horned (两只角的) animal. To the left of the main cave are the most famous paintings that are the drawings of multicolored animals. One painting is called Little Horses. On the ceiling are horses and cows. The most unusual sight may be in the Shaft of the Dead Man where there is a thinoceros (犀牛), a carefully drawn dead man, a wounded bison and a bird. Why did Cro-Magnon artists do these beautiful drawings on cave walls? Did the drawings call upon some magical power? Did the Cro-Magnon people hope that the drawings would bring luck? There is one thing the paintings seem to tell us. The Cro- Magnons had a sense of wonder about the world. They looked at beauty and they understood it. 1. The author uses the word "you" in the first paragraph to _____. A. pull the reader into the story B. make it clear that this is a true story C. give the reader good directions to find the caves D. compare present-day readers with the Cro-Magnon people 2. Most of the drawings in the caves are about _____. A. boys B. tools C. dead men D. animals 3. It can be learned from the passage that ______. A. anyone can find cave art B. the Cro-Magnon people are a mystery C. the Cro-Magnon people knew magic D. the cave paintings of Lascaux are excellent 4. What is the main idea of the passage? A. Cave paintings are beautiful. B. Who found the beautiful cave paintings? C. The Lascanx caves hold ancient colorful paintings. D. Drawings of horses are on the walls of the Lascaux caves.