问题 问答题

读“沿我国北纬36°纬线所作的剖面图”,完成下列要求.

(1)我国地势特点:______,呈______分布.

(2)第一级阶梯地形以______为主;平均海拔______米以上.

(3)受地势影响,我国大多数河流流向是自______向______流,注入______洋.

(4)图中A、B、C表示我国地势的三级阶梯,其中A为第______级阶梯,主要地形区为______,B为第______级阶梯,主要地形区为______,C为第______级阶梯,主要地形区为______.

(5)图中第一级阶梯与第二级阶梯的分界线是______ 河的河谷地带,第二级阶梯与第三级阶梯的分界线是______.

答案

观察剖面图得出:(1)中国地势西高东低,呈三级阶梯状分布;(2)第一级阶梯上地形以高原为主,平均海拔在4000米以上,号称“世界屋脊”;(3)地势西高东低使许多大河滚滚东流沟通了东西交通,方便了沿海和内陆的联系;(4)由图示得出:沿我国北纬36°纬线东西方向延伸经过的地形区主要为:青藏高原、黄土高原、华北平原;(5)观察图示一、二阶梯的分界线在黄 河的河谷地带,二、三阶梯的分界线是太行山.

故答案为:

(1)西高东低,三级阶梯状;(2)高原,4000;(3)西,东,太平;(4)一,青藏高原,二,黄土高原,三,华北平原;(5)黄,太行山.

完形填空
完形填空。
     Liu Yu, a fifteen-year-old student from Shangdong, is a running star. He is   1   his school running team
and has always wanted to be a professional athlete. However, his parents won't allow him to train as   2   as
he would like to. "Of course we want to see Liu YU achieve his dreams," says Mr. Liu, "and we know   3   
he loves running. That's great, and my wife and I have watched him in every one of his races. We have
nothing against running! But we do think that our son needs to be realistic. Now that he is getting older, he
needs to think about what   4   if he doesn't become a professional runner in the end."
     Liu Yu doesn't really agree. "Well, I think I should   5   to make decisions for myself," he says. "My
parents have always taught me the importance of working hard and not just to do   6   I enjoy. I understand
this. But I'm serious about running. Being a professional runner is the only thing I have ever wanted to do."
     Mr. and Mrs. Liu believe that Liu Yu should study hard in the evenings, and so they don't allow him to
practice running   7   school nights. "I know this might seem strict," says Mrs. Liu, "but we think we're
doing the right thing. He has to understand that very   8   people can become professional athletes. It's a
very   9   dream to achieve. We don't allow him to practice every day because we think he needs to spend
time on his homework."
     But Liu Yu still doesn't agree. "I know my parents care about me," he says. "But they are always talking
about what will happen if I don't succeed. But I will succeed! I think I should be allowed to make this
decision for myself. Only then  10  I have a chance of achieving my dream."
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