Question

閱讀理解 　　Do you know something about tree rings(年輪)? Do you know they can tell us what the weather was like, sometimes even hundreds of years ago? 　　A tree will grow well in a climate(氣候)with lots of sunshine and rainfall．And little sunshine or rainfall will limit(限制)the growth of climate by studying the tree rings．For example, to find out the weather of ten years ago, count the rings of a tree from the outside to the inside．If the tenth ring is far from the eleventh ring, then we’re sure that it was sunny and rainy most of that year．If it is near to the eleventh ring, then the climate that year was bad． 　　Tree rings are important not only for studying the history 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－no trees and no people．What happened? 　　A scientist studied the rings of dead trees there．He found that the people had to leave because they had cut down all the trees to make fires and buildings．As all the trees had gone, the people there had to move． (1) ________ in good climate． [　　] A． Tree rings grow far from each other B． Tree rings become thinner C． Trees don’t need sunshine or rainfall D． People can cut down most of the trees (2) The scientists are interested in studying tree rings because tree rings can tell ________． [　　] A． whether a tree was strong or not B． whether people took good care of the trees or not C． whether the climate was good or not D． how old the trees were (3) If you want to find out the weather of twenty years ago, you should study ________． [　　] A． the twentieth ring B． the tenth ring C． the nineteenth ring D． the twenty-first ring (4) Why did people usually live in places with lots of trees? [　　] A． Trees could tell the change of the weather B． Trees brought lots of sunshine and rain C． Trees could make weather not too hot or too cold D． Trees could be used for burning and for building house (5) The people had to leave the place in New Mexico because ________． [　　] A． had weather stopped the growth of trees B． they no longer had water and the land became sand C． they didn’t have enough trees for burning D． there was too much rain there

Answer 1

答案：1．A;2．C;3．A;4．D;5．B;
解析：

(1)	“If the tenth ring is far from the eleventh ring, then we’re sure that it was sunny and rainy most of that year．”一句即是答案所在．
(2)	文章第一段“Do you know they can tell us what the weather was like…”和第三段的首句“Tree rings are important not only for studying the history of weather…”都有所暗示．
(3)	答案就在 “…to find out the weather of ten years ago, count the rings of a tree from the outside to the inside．If the tenth ring is far from the eleventh ring…”一句中．
(4)	短文最后一段說，人們建房做飯都離不開樹木．人所居住的周圍環(huán)境中如果沒有了樹木，那么人也就遷移了．所以答案為D．
(5)	根據(jù)最后兩段所敘述的內(nèi)容，再聯(lián)系植物對人類的重要作用，則不難得出答案． 　　這篇短文介紹的是有關(guān)植物年輪方面的小知識．由于樹木的生長要受到陽光、降水等方面的影響，從一棵樹上的年輪分布情況上，可以推斷出樹木所生長地方以前的氣候狀況．年輪不僅對科學(xué)家研究地球上的氣候環(huán)境有非常重要的參考價值，而且更為有趣的是，它還能幫助科學(xué)家們研究人類的歷史呢．