题型：任务型阅读 题类：常考题 难易度：普通
高中英语人教版选修八Unit 1 A land of diversity同步练习 (2)
The First Americans
There was a time long ago when a land bridge connected Asia and North America. The first settlers in North America crossed this land bridge from what is now Siberia to Alaska. The people who made this initial crossing were probably following the animals they used for food.
Finally, the oceans rose and the land bridge between the continents disappeared. The settlers, who I shall call the “First Americans”， could not return to their homeland.
For the next few thousand years, the First Americans moved south and east throughout North and South America. They made the journey all the way from Alaska to the southern tip of South America, a distance of more than 10,000 miles.
In the far north, above the Arctic Circle, the First Americans became hunters of the ocean.In the summer, they gathered berries and other plants. In the winter, they stayed in lodges much of the time preparing for the next summer. It was a hard life, but they learned to survive in these terrible conditions.
Farther south, in what is now Arizona, Utah, Colorado, and New Mexico, the First Americans became cliff dwellers. They began by living in caves that already existed in the cliffs.The dwellings they built in many ways resembled today's apartment buildings.
They built a system of dams and canals so they could store and use water almost any time of the year. They were so successful that they could raise fruits and vegetables that were not found naturally in the desert.
A．They also discovered foods like corn and potatoes.
B．Along the way, they established many different civilizations.
C．They discovered how to add to the caves by building structures of wood and stone.
D．People living near each other tended to share similar environments and customs.
E．They built boats of animal skins and hunted or fished for their food.
F．They would have to survive in the New World they had discovered.
G．The First Americans of the Southwest learned to water the desert.
Recently some American scientists have a useful piece of advice to people in industrialized nations. They say people should eat more of the same kind of food eaten by humans living more than 10, 000 years ago.{#blank#}1{#/blank#}
The scientists say that the human life has changed greatly. Our bodies have not been able to deal with these changes in lifestyle and this has led to new kinds of sicknesses. These new sicknesses were not known in ancient times.So they are called “diseases of civilization”. {#blank#}2{#/blank#}
Scientists noted that people in both the Old Stone Age and the New Stone Age enjoyed very little alcohol or tobacco, probably none.{#blank#}3{#/blank#} However, a change in food is one of the main differences between life in ancient times and that of today.
Stone Age people hunted wild animals for their meat, which had much less fat than domestic ones. They ate a lot of fresh wild vegetables and fruits. They did not have milk or any other dairy products, and they made very little use of grains.{#blank#}4{#/blank#}We eat six times more salt than our ancestors. We eat more sugar. We eat twice as much fat but only one third as much protein and much less vitamin C.
{#blank#}5{#/blank#}But scientists say that we would be much healthier if we eat much the same way the ancient people did, cutting the amount of fatty, salty and sweet food.
A. People today probably don't want to live like our ancestors. B. Ancient people also got lots of physical exercise. C. Stone Age people lived a simple life. D. Many cancers and diseases of the blood system are examples of such diseases. E. Modern people used to suffer from “diseases of civilization.” F. But today, we enjoy eating a lot of these. G. In that case, they would live much healthier. |
试题篮
It even has the world's biggest rainforest — the Amazon.