问题 填空题

(12分)

(1)在密闭容器里,通入x mol SO2和y mol O2,发生化学反应:2SO2 (g) + O2 (g)2SO3 (g) ;当其它条件不变时,改变下列条件,反应速率将如何改变?(填“增大”“减小”或“不变”)

①降低温度____________________ ;

②当容器容积不变,充入更多的O2 ____________________ ;

③当容器容积不变,通入氖气____________________。

(2)来自石油的基本化工原料苯和乙烯,都有着十分广泛的用途。请回答:

④可以用来鉴别苯蒸气和乙烯的试剂是____________________(填序号)。

A.水         B.溴的四氯化碳溶液     C.酸性高锰酸钾溶液

⑤苯分子具有平面正六边形结构,所有原子共一个平面,则苯分子中在一条直线上的原子最多有____________________ 个。

⑥在一定条件下,乙烯能与水发生加成反应生成有机物A,写出A与Na反应的化学方程式________________________________________。

答案

(每空2分,共12分)

(1)①减小   ②增大   ③不变

(2)④ABC (选1项不计分,选2项给1分,全部选对且未多选给2分);

⑤4      ⑥2CH3CH2OH+2Na→2CH3CH2ONa+H2

完形填空
完形填空
     One famous artist Sheikh went back to his hometown. He hadn't seen one of his friends for many years, who was a __1__and needy man. When Sheikh asked about him, he was told by people that the man he was__2__was a rich man and no longer poor. Sheikh__3__to pay a visit to his friend.
    _4__talking with his friend, Sheikh asked him the __5__for the change in his situation. The man
replied that he had been so poor that he was forced to__6__some properties(财产)that belonged to him,
like furniture (家具).  By selling these things, he  had__7__some money enough to start a  __8__ with.
     As he was on his way back to his house with the__9__, he saw a poor lady__10__by the road. The
man asked the lady the reason, and she__11__ that  her  husband died and her children were __12__.
Hearing this, the man felt__13__for her, and on seeing that she__14__the money more than himself, he
gave all the money to her. He__15__home and spent the night, sad and__16__for his family.
     The next morning,__17__he was summoned(召唤) to the house of a rich man. He was told by the rich man that he had six thousand bags of__18__which he wanted to  sell  quickly and the man could  buy it at
a__19__price on loan(借用) from him. The poor man did so and sold the rice__20__. He took some
more bags several days later and in this way he was able to make much more money. Soon he became
rich.
( )1.A.clever    
( )2.A.living with
( )3.A.decided  
( )4.A.Until    
( )5.A.message  
( )6.A.sell      
( )7.A.saved    
( )8.A.travel    
( )9.A.money    
( )10.A.crying  
( )11.A.believed
( )12.A.hungry  
( )13.A.sadness  
( )14.A.took    
( )15.A.drove    
( )16.A.worried  
( )17.A.happily  
( )18.A.rice    
( )19.A.low      
( )20.A.slowly  
B.rich        
B.waiting for  
B.forgot      
B.Before      
B.reason      
B.make        
B.collected    
B.business    
B.news        
B.walking      
B.explained    
B.dangerous    
B.interest    
B.needed      
B.returned    
B.pleased      
B.surprisingly
B.meat        
B.fair        
B.quickly      
C.lazy        
C.asking about
C.refused    
C.After      
C.time        
C.keep        
C.paid        
C.family      
C.hope        
C.sleeping    
C.shouted    
C.crazy      
C.shame      
C.owned      
C.left        
C.excited    
C.carelessly  
C.vegetables  
C.high        
C.hardly      
D.poor        
D.listening to
D.tried      
D.While      
D.plan        
D.find        
D.wasted      
D.lesson      
D.furniture  
D.standing    
D.imagined    
D.angry      
D.pity        
D.earned      
D.stayed      
D.frightened  
D.unluckily  
D.clothes    
D.right      
D.finally    
单项选择题