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问题 填空题

（5分）某烃的相对分子质量为114，该烃的分子式为__________；它的主链碳原子数最少且其一氯代物只有一种的烃的结构简式为____________；其一种同分异构体对应的单烯烃只有两种，则此异构体的结构简式为_____________；对应的两种烯烃名称为________和________ 。

答案

（5分）C8H18

2，4，4-三甲基-1-戊烯        2，4，4-三甲基-2-戊烯

完形填空
完形填空

     A young man was getting ready to graduate from college, for many months he had   1   a beautiful sports car in a dealer's showroom, and   2   his father could well   3    it, he told him that was all he wanted.   
     On the morning of his graduation day his father called him into his own study and told him how   4    he was to have such a fine son. He handed his son a beautiful gift box.   5    but slightly disappointed, the
young man   6   the box and found a lovely book.   7    , he raised his voice at his father and said, "  8  
all your money you give me a book?" And rushed out of the house    9    the book in the study.  
     He did not contact（联系）his father for a whole year   10  one day he saw in the st reet an old man
who looked like his father. He   11   he had to go back home and see his father.   
     When he arrived at his father's house, he was told that his father had been in hospital for a week. The
moment he was about to   12   the hospital, he saw on the desk the   13  new book, just as he had left it
one   14  ago. He opened it and began to  15   the pages. Suddenly, a car key  16   from an envelope
taped behind the book. It had a lag (标签) with dealer's name, the  17  dealer who had the sports car he
had    18   . On the tag was the  19   of his graduation. and the   20  PAID IN FULL.

( )1.  A. expected  
( )2.  A. finding  
( )3.  A. afford  
( )4.  A. encouraged
( )5.  A. Nervous  
( )6.  A. packed  
( )7.  A. Angrily  
( )8.  A. At        
( )9.  A. toasting  
( )10. A. until    
( )11. A. learned  
( )12. A. get to    
( )13. A. much    
( )14. A. year    
( )15. A. clean    
( )16. A. lost    
( )17. A. old     
( )18. A. remembered
( )19. A. picture  
( )20. A. words     		B. enjoyed.  
B. proving    
B. offer      
B. comfortable
B. Serious    
B. opened    
B. Eagerly    
B. From      
B. putting    
B. as        
B. realized                    
B. search for           
B. still                     
B. month      
B. read      
B. came      
B. same      
B. desired    
B. place      
B. information		C. admired    
C. deciding    
C. keep        
C. proud      
C. Careful    
C. picked up    
C. Calmly      
C. With        
C. forgetting  
C. before      
C. recognized  
C. turn to                       
C. hardly      
C. week        
C. turn      
C. appeared   
C. special      
C. found      
C. date        
C. date         		D. owned    
D. knowing  
D. like    
D. moved    
D. Curious  
D. put aside
D. Anxiously
D. To      
D. leaving  
D. unless                   
D. admitted
D. leave for           
D. quite    
D. day      
D. count    
D. dropped  
D. new      
D. met      
D. met      
D. card    
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实验题

小亮同学想通过实验探究“电阻的大小与哪些因素有关”。他利用四根如图13所示的金属丝进行实验。已知图中A为锰铜丝，B、C、D为镍铬合金丝，S表示金属丝的横截面积。（2分）

⑴若要探究导体电阻的大小跟材料的关系，应选用金属丝B和金属丝                  进行实验。

⑵若要探究导体电阻跟                  的关系，应选用金属丝B、D进行实验。
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