问题 读图填空题

生物体的各项生命活动是以____________________的各种生命活动为基础的,细胞是生物体的____________________和____________________基本单位。

答案

细胞  结构功能

题目分析:病毒的结构简单,由蛋白质外壳和内部的遗传物质组成,没有细胞结构,所以病毒这种生物不是由细胞构成的,除病毒外,细胞是生物体结构和功能的基本单位,生物体的组织、器官、系统都是由细胞构成的,生物体的细胞有细胞膜,可以保护细胞,同时控制物质的进出,使之从结构上成为一个独立的单位,细胞内有细胞核内含有遗传物质,细胞质里有能量转换器--线粒体,把有机物分解并释放出能量供细胞生命活动利用,使之从功能上成为一个独立的单位,因此从细胞的结构及功能的角度来看,细胞是生物体进行生命活动的基本单位,是进行生命活动的基本场所。

完形填空
完形填空。
       China is the home of tea,   1   has more than 4,000 years of history. People in China drink tea daily.   2   
the three major drinks — tea, coffee and cocoa, tea is drunk by   3   people in the world. Tea from China,
along   4   silk and porcelain, began to be known by the world over a thousand years ago and has been an
important Chinese export   5  
       Tea leaves   6   mainly in the area south of the Yangtze River, in the provinces of Zhejiang, Jiangxi and
Fujian, because of the mild   7   and rich soil there. Longjing, Wulong, Pu'er and Tieguanyin are all   8   kinds
of tea.
       Over the past centuries, Chinese people   9   their unique tea culture, which includes tea planting, tea-leaf
picking, tea making, tea drinking and so on. Tea is   10   a popular topic which is often mentioned in dances,
songs, poems and novels.
( ) 1. A. who            
( ) 2. A. In             
( ) 3. A. the number of          
( ) 4. A. between        
( ) 5. A. at that time   
( ) 6. A. produce        
( ) 7. A. climate        
( ) 8. A. interesting    
( ) 9. A. had developed  
( ) 10. A. too          
B. which           
B. For             
B. a number of             
B. with            
B. from now on     
B. are produced    
B. weather         
B. important       
B. have developed        
B. as well       
C. where             
C. Of                
C. a large number of      
C. except            
C. since then        
C. make              
C. condition         
C. famous            
C. developed               
C. either          
D. when                   
D. By                     
D. the largest number of     
D. besides                
D. since now              
D. are made               
D. environment            
D. normal                 
D. are developing         
D. also                 
多项选择题