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Do you know something about tree ring（年轮）? Do you know they can tell us what the weather was like, something even hundreds of years ago?
A tree will grow well in a climate（气候） with lots of sunshine（阳光） and rainfall. And little sunshine or rainfall will limit（限制） the growth of a tree. We can see the change of climate by studying the tree rings. For example（例如）, 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 tear. If it is near to the eleventh ring, then the climate that year was bad.
Tree ring s are important(重要的) not only for studying the history of weather but also for studying the history of man. Many centuries (世纪)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(科学家) studied the rings of 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 the 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(是否) a tree was string or not  B. whether people took good care of the trees or not
C. whether the climate was god or not     D. how old the man was
(   )3. If you want to find out the weather of twenty years ago, you should study           of a tree from the outside to the inside.
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 houses
(   )5.The people had to leave the place in New Mexico?          
A.      because bad weather stopped the growth of trees
B.      because they didn’t have enough trees for burning 
C.      because they didn’t have enough trees for burning 
D.     because there was too much rain there

小猫不小 · 发表于 2007-6-18 08:31:06

特别是第四题，选择C，还是D

eliseyan · 发表于 2007-6-18 14:15:12

感觉从文章来看，应该是选D
He found that the people had to leave because they had cut down all the trees to make fires and buildings.
原来有很多人，但是因为没有树木了，所以都离开了，那原来那么多人住的原因应该就是为了取火和建筑吧！

xuyanhong · 发表于 2007-6-18 15:36:20

同意楼上看法

小蓝鱼儿 · 发表于 2007-6-18 16:27:36

原帖由 eliseyan 于 2007-6-18 14:15 发表
感觉从文章来看，应该是选D
He found that the people had to leave because they had cut down all the trees to make fires and buildings.
原来有很多人，但是因为没有树木了，所以都离开了，那原来那么多 ...

同意，很有道理

Jackjones281 · 发表于 2007-6-19 12:03:56

同意大家的意见啊！

sfy · 发表于 2007-6-19 12:09:28

同意楼上看法

真州 · 发表于 2007-6-19 12:19:43

:lol

真州 · 发表于 2007-6-19 12:19:50

:lol

真州 · 发表于 2007-6-19 12:19:59

:victory:

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