问题 选择题

下列说法错误的是

A.爱因斯坦针对经典力学的绝对时空观在处理物体做高速运动时所遇到的困难创立了狭义相对论

B.牛顿的经典力学仍适用高速(速度接近光速)、微观的粒子的运动

C.广义相对论是数学与物理学相结合的典范

D.相对论已经成为现代科学技术的重要理论基础之一

答案

B

题目分析:牛顿的经典力学的应用受到物体运动速率的限制,当物体运动的速率接近于真空中的光速时,经典力学的许多观念将发生重大变化,但当物体运动速率远小于光速时,经典力学仍然适用;牛顿运动定律不适用于微观领域中物质结构和能量不连续现象,对于宏观物体的运动,经典力学仍然适用, 故B错误。所以本题选择B。

阅读理解
阅读理解。
Trip 1   One Week in the Mountains
     Bring your strong shoes and warm clothes for this walk in a beautiful area of the Green Mountains. You
  may go hiking or have a try of rock climbing . This is also a protection area for wild animals. You can find
  many kinds of animals living in this area. 
              Time: May 8- May 14              Tel: 61639818
              Adult: $ 110.00                        Child : $ 55.00
Trip 2   Three Days in the Country  
      There are many beautiful gardens. Take your camera and enjoy the wonderful sight in Hunter Valley. It
  is a good place for fishing and horse-riding. You can also find different kinds of flowers here. This is also
  a great walk for bird-lovers.  
           Time: May 20- May 22             Tel: 63986432 
           Adult: $ 50.00                          Child : $ 25.00
Trip 3  Five Days By the Sea  
     Wear your sun hat and enjoy wonderful sunshine all the time from morning to evening. Our hotel is next
  to the sea. We have our own boats too. You can swim in the sea or in the swimming pool. Every day
 our boat will take you to different places for swimming.  
          Time: May 23- May 27             Tel: 67538293
          Adult: $ 80.00                    Child : $ 40.00
1. What number will you call if you and your friends want to enjoy the sunshine at the seaside?
    A. 67538293    
    B. 63986432      
    C. 64639818      
    D. 63875629 
2. Sam wants to stay in Hunter Valley with his wife ,his five-year-old daughter and his seven-year-old son. 
    How much will it cost?
    A. $ 25.        
    B. $ 50        
    C. $ 100        
    D. $ 150
3. David loves sports. He will take his holiday from May 7 to May 15. What activity will he probably take
    part in?
    A. Hiking in the mountains.    
    B. Watching plants at night.
    C. Fishing in the country      
    D. Swimming in the sea.
填空题