问题 问答题 简答题

试述桡腕关节的结构特征,并分析它的运动特点如何?

答案

参考答案:

桡腕关节由桡骨下端的腕关节面及尺骨头下方的关节盘共同组成的关节窝与近侧 * * 块腕骨(舟骨、月骨和三角骨)组成的关节头共同构成,属于椭圆关节,其关节囊宽而薄。加固腕关节的韧带主要有:腕桡侧付韧带、腕尺侧付韧带、桡腕掌侧韧带和桡腕背侧韧带及腕横韧带(该韧带横架于大多角骨和钩状骨之间,使手腕背面呈弓形,运动中起缓冲作用)。桡腕关节可绕额状轴做屈伸运动,绕矢状轴做内收与外展运动,此外还可做环转运动。

阅读理解

阅读理解

       Henry was an office worker in a big city. He worked very hard and enjoyed traveling in    his holidays. He usually went to the seaside. But one year he saw an advertisement in a newspaper. "Enjoy country life. Spend a few weeks at West Hill Farm. Good food. Fresh air. Horse riding. Walking. Fishing. Cheap and

interesting. "

       "This sounds like a good idea," he thought. "I'll spend a month at West Hill Farm. I think I can enjoy

horse riding, walking and fishing. They'll make a change from sitting by the seaside and swimming. " He

wrote to the farmer. In the letter he said that he would like to spend all of July there. Then on the first day

of July, he left for West Hill Farm.

       But four days later, he returned home.

       "What was wrong with West Hill Farm?" his best friend, Edward, asked him.

       "Didn't you enjoy country life?" "Country life was very good," Henry said. "But there was another

problem. "

       "Oh. What?"

       "Well," he said, "the first day I was there a sheep died, and we had roast mutton for dinner. "

       ''What's wrong with that?" Edward asked. "Fresh meat is the best. "

       "I know, but on the second day a cow died, and we had roast beef for dinner. "

       "Lucky you ! "

       "You don't understand," Henry said.

       ''On the third day a pig died and we had roast pork for dinner. "

       "A different meat every day," Edward said loudly, "and you are complaining! "

       "Let me finish," Henry said. "On the fourth day the farmer died, and I didn't dare(敢) stay for dinner?"

1. How did Henry find out about the farm?    

A. He saw it in a newspaper advertisement.

B. His best friend told him.

C. He wrote to the farmer.

D. Maybe he learned it from the radio.

2. Henry came back home several days later because         .       

A. he didn't like the country life at all

B. the farmer wasn't friendly to him

C. his holiday was over

D. he thought he might have to eat the farmer

3. "... and you are complaining!", the word "complain" means "          " in Chinese.    

A. 夸奖      

B. 说三道四      

C. 抱怨        

D. 故弄玄虚

4. Which of the following sentences is TRUE? 

A. Edward could eat a different kind of meat every day.

B. Henry thought he could enjoy a change.

C. Henry couldn't think of anything else to do, so he went to the farm.

D. The farmer died because of the bad meat he ate.

5. Which of the following is the best title for the passage?   

A. What a beautiful farm !

B. Have a good time.

C. A short holiday.

D. Henry and the farmer.

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