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Do you know something about tree rings? Do you know they can tell us what the weather was like, sometimes even hundreds of years
Do you know something about tree rings? Do you know they can tell us what the weather was like, sometimes even hundreds of years
admin
2009-08-17
34
问题
Do you know something about tree rings? Do you know they can tell us what the weather was like, sometimes even hundreds of years ago?
We can see the change of weather by studying the tree rings.
For example, to find out the weather of ten years ago, count (数) the rings of a tree from outside to the inside. If the tenth ring is far from the eleventh ring, then we are sure that it was sunny most of that year. If it is near to the eleventh ring, then the weather that year was bad.
Tree rings are important not only for studying the history (历史) of weather but also for studying the history of man. Many centuries ago there lived a lot of people at a place in New Mexico. But now you can find only sand there? A scientist studied the rings of dead trees there. He found that the people had to leave because they had cut down all trees to make fires and buildings. As all trees had gone, the people there had to move.
选项
A、What is a tree ring.
B、What can a tree ring do.
C、How to study a tree ring.
答案
B
解析
本题是有关文章主要意思的问题,问文章主要是关于什么。这要求对全文有个概括性的了解。本文最大篇幅地是在解释年轮的作用,如第三、第四段,而不是年轮的定义,因此A是不对的,也不是如何研究年轮,C也不对,只有B是对的。
转载请注明原文地址:https://jikaoti.com/ti/shCsFFFM
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