↑ 收起筛选 ↑
试题详情

Do you want to know something about the history of weather? Don’t look at the sky. Don’t look for old weather reports. Looking at tree rings is more important. Correct weather reports date back only one century, but some trees can provide an exact record of the weather even further back.

It is natural that a tree would grow best in a climate with plenty of sunlight and rainfall. It is also expected that little sunlight and rainfall would limit the growth of a tree. The change from a favorable to an unfavorable climate can be determined by reading the pattern of rings in a tree trunk. The find the weather of ten years ago, count the rings of a tree trunk from the outside to the inside. If the tenth ring is far from the other rings, then it is certain that plenty of sunny and rainy weather occurred. If the rings are closed together, then the climate was bad for the tree.

Studying tree rings is important not only for the history of weather, but also for the history of man. In a region of New Mexico you can find only sand---no trees and no people. However, many centuries ago a large population lived there. They left suddenly. Why?

A scientist studied patterns of 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 necessary to make fires and buildings. So, after the people destroyed the trees, they had to move. In this instance studying tree rings uncovers an exciting fact about the history of man.

1.It is understood that in a favorable climate ________.

A. tree rings grow together

B. tree rings grow far apart

C. trees in New Mexico will grow big and tall

D. people can cut down most of the trees in New Mexico

2.The scientists are interested in studying tree rings because they can tell ________.

A. whether in that area the climate was favorable or not

B. whether a particular tree was healthy or not

C. whether people took good care of the trees or not

D. how old the trees were

3.By studying the dead tree rings, the scientist discovered ________.

A. where the people had left

B. what the people used to eat

C. how the people left

D. why the people had to leave

4.The main idea of the passage is ________.

A. tree rings reflect the history of weather and the history of man

B. destroying tree will do man no good

C. studying tree ring is the only way to know the history of weather

D. man shouldn’t cut so many trees

高一英语阅读理解中等难度题

少年,再来一题如何?
试题答案
试题解析
相关试题