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问题 选择题

2010年1O月5日，瑞典皇家科学院宣布。将本年度诺贝尔物理学奖授予安德烈·海姆和康斯坦丁·诺沃肖洛夫，以表彰他们利用普通胶带成功地从石墨中剥离出石墨烯，并发现它所具有的非凡属性，向世界展示了量子物理学的奇妙。这表明

①石墨烯非凡的属性源于物理学家的非凡智慧

②充分发挥主观能动性是认识石墨烯本质属性的前提

③物理学家能够有意识地创造新的人工自然物及其运动规律

④物理学家通过科学实验使人们对石墨烯的认识不断发展

A．①③

B．②④

C．①④

D．②③

答案

答案：B

完形填空
完形填空.  

    Learning is  natural.  It begins the   1  we are  born.  Our first  teachers are our f amilies. At  home  we 
learn  to talk and to    2    and feed ourselves. We learn these and other skills by  3     .
    Then we go to school.  Many  teachers teach us     4    to learn and  how to learn. And we pass  many
tests and exams. People say we are educated. Are we really educated? Let's think about the real meaning  of    5  .  Knowing facts doesn't mean being  able to solve problems.  Solving  problems    6      creativity,
not just good memory.
    What does a good  teacher do? Does he give  students facts to    7   ?Well,  yes,  we must  sometimes
remember  facts.  But a good teacher   8  how  to find answers. He brings us to the   9    of   knowledge
where we can drink for ourselves. When we are thirsty, we know   10   to go.
    True  learning combines  in-take with  out-put. We take information into our brains. Then we use it, a
person who only remembers facts hasn't really learned. Learning  takes place only  when a  person  cap
use what he knows.

(   )1. A. baby
(   )2. A. wear
(   )3. A. asking
(   )4. A. what
(   )5. A. talking
(   )6. A. needs
(   )7. A. know
(   )8. A. shows
(   )9. A. room
(   )10. A. whether		B. minute
B. put on
B. listening
B. how    
B. learning
B. is  
B. understand
B. gives  
B. book  
B. why 		C. hour       
C. dress      
C. following    
C. that        
C. answering  
C. brings     
C. remember  
C. encourages   
C. river   
C. where        
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解答题

五年一班6名同学1分钟踢毽子成绩如下：

学号123456

成绩12551117106124119

（1）求出这组数的平均数和中位数．

（2）你认为用哪个数代表这组数据的一般水平更合适？
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