大學(xué)英語(yǔ)(一)第2階段測(cè)試題2b-在線瀏覽
2024-09-14 15:32本頁(yè)面
【正文】 from the outside to the inside. If the tenth ring is far from the other rings，then we are sure that lots of sunny and rainy weather happened. If the rings are close together，then the climate was bad for the tree. Studying tree rings is important not only for the history of the weather，but also for the history of man. In a place of New Mexico you can find only sand－no trees and no people. However，many centuries ago a lot of people lived there. They left suddenly. Why? A scientist studied the dead tree rings which had grown there. He decided that the people had to leave because they had cut down all the trees. Trees were used to make fires and buildings. So, after the people cut down the trees，they had to move. (6)、It is understood that in a favorable climate tree rings grow far from each other.A：TB：F(7)、Trees brought lots of sunlight and rainfall.A：TB：F(8)、The scientists are interested in studying tree rings because they can tell whether the climate was favorable or not.A：TB：F(9)、Studying dead tree rings shows how the people left.A：TB：F(10)、The people had to leave the place of New Mexico because they had cut down all the trees.A：TB：FAmerican cities are similar to other cities around the world. In every country, cities reflect the values of the culture. Cities contain the very best aspects of a society: opportunities for education, employment, and entertainment. They also contain the very worst parts of a society: violent crime, racial conflict (種族沖突) and poverty. American cities are changing, just as American society is changing. After World War Ⅱ, city residents became wealthier, more prosperous. They had more children. They needed more space. They moved out of their apartments in the city to buy their own homes. They bo
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