题文
完形填空。 We know that trees are useful in our everyday life. They __1__ us many things, such as wood, oxygen,
rubber, medicines and many other things. They can __2__ tell us a lot about our climate. The following
are the reasons. If'you, __3__ a tree, you can see that it has many rings (年轮). Most trees grow one
new ring __4__ year. Because of this reason, we know __5__ a tree is. A tree over a hundred years old
means that it has more than a hundred __6__ . When the climate is dry or very cold, the trees do not
grow very much and their rings are usually __7__ . When it is wet and warm, the rings are much
thicker. If the rings are suddenly very thin or suddenly very thick, this means that the__8__ changed
suddenly. If we Iook at the rings on this tree, we can learn about the __9__ for a hundred years. We can
see__10__ 0ur climate is changing today.( ) 1. A. tell
( ) 2. A. not
( ) 3. A. cut down
( ) 4. A. many
( ) 5. A. how big
( ) 6. A. trees
( ) 7. A. big
( ) 8. A. climate
( ) 9. A. people
( ) 10. A. how B. ask
B. too
B. climb up
B. every
B. how long
B. leaves
B. thin
B. trees
B. things
B. why C. give
C. also/
C. walk past
C. the first
C. how old
C. rings
C. small
C. things
C. climate
C. when
题型：未知 难度：其他题型
答案
1. C 2. C 3. A 4. B 5. C 6. C 7. B 8. A 9. C 10. A
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解析
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考点
据考高分专家说，试题“完形填空。 We k.....”主要考查你对 [科教类阅读 ]考点的理解。
科教类阅读
科普类的阅读：
科普类的阅读理解包含介绍科学知识、社会知识的短文。阅读这类短文时，要以事实为中心进行思考，抓住事物的特征、用途、相互关系等。
如果是介绍社会现象的文章，要掌握所谈现象的内涵。
答题技巧：
1. 加强整体意识，把握文章的主要内容。在阅读的时候可给段落标上序号，并给重要的句子和
关键词做上记号，尤其是各段中心句，为答题提供更快捷更多的信息源。
2. 审清题干，发觉和把握试题中有效的提示性信息，确认命题的角度、阅读范围和答题方式。
3. 定位阅读，强化对应意识。同时要注意原文利用和自我加工相结合。
