1 . The ancient village of Machu Picchu is one of the most popular tourist destinations in South America. It’s in Peru, high in the Andes Mountains, 8, 000 feet above sea level.
The village contains 200 buildings. Houses are in groups, and each house has a large courtyard inside its walls. The Incas(印加人) used the areas outside the groups of houses to grow corn and potatoes and to raise animals. The Incas were very good at building strong walls. Visitors to Machu Picchu still cannot fit a knife between the stones of a village home.
Machu Picchu seemed to be a healthy, busy village. So why was it lost? That is a mystery, but experts have some ideas. Machu Picchu was hard to reach. Few people outside the village knew about it. Experts think that many residents died of disease. Others fought a war. The survivors left the village.
The tourists are good for Peru’s economy, but they are not good for Machu Picchu. The village is old and fragile. Tourists damage the ruins. Thousands of footsteps from visitors wear down the walkways in the village. Salt and oil from people’s hands damage the walls. Air pollution from buses hurts the stones. Tourists do not want to damage the village, but they want to see this beautiful, ancient place.
The Peruvian government and conservation groups are trying to solve the problem. A group from the United Nations wants to limit the number of tourists each year. They also want cars and buses to use cleaner fuel.
1. What crops did the Incas grow?| A．Rice and beans. | B．Tomatoes and peas. |
| C．Wheat and peas. | D．Potatoes and corn. |
| A．The Incas knew how to make good use of the land. |
| B．Visitors still cannot fit a knife between the stones. |
| C．Footsteps wear down the walkways in the village. |
| D．Each house has a large courtyard inside its walls. |
| A．Beautiful. | B．Terrible. | C．Clean. | D．Weak. |
| A．Air pollution. | B．Feet on the walkways. |
| C．The shape of the land. | D．Hands on the walls. |
