题目内容：

Answer the questions (根据短文内容回答下列问题)

Mexico, the largest nation in the region, provides a good example of life in Central America. Although Mexico is a large country, only 12 percent of its land is good for farming. Another 40 percent is good land for cattle and farm animals. The rest of the land is hills and mountains, dry, high plateaus, or wet coastal regions.

The mountains are too high to farm. The high plateau in the middle of Mexico is too dry to plant crops. The coastal areas receive so much rain that the land often becomes waterlogged(水涝的). For all these reasons, Mexicans must take care of the good farmland they have. Yet good farming has not always been possible in Mexico.

For many centuries, Mexican farmers had grown traditional crops. These included corn, beans and squash. However, when the Spanish arrived in the 1500s, they tried to introduce new ideas. They thought new plants such as onions, turnips, sugarcanes and bananas would do well in the warm, tropical climate. But the Mexicans wished to continue(继续) with their old ways.

1.How much of the land in Mexico is good land for cattle and farm animals?

2.The high plateau in the middle of Mexico is a good farmland, isn’t it?

3.Why aren’t the coastal areas good for farming?

4.What did Spanish try to do in the 1500s?

5.Did the Mexicans want to grow the new crops?