问题 问答题 简答题

简述海洋空间资源的开发利用。

答案

参考答案:

滩涂湿地丰富的藻类和有机碎屑支持无脊椎动物的生长繁衍,从而支持渔业的发展;湿地红树林有重要护岸作用,并为渔业提供养殖和育苗环境。而围海筑坝、添海造地等行为破坏了滩涂湿地的生态环境,围垦造成洄游通道阻隔,导致洄游性鱼类迁移路线改变或被破坏。由于湿地被围,如今已遭受破坏;围垦使入海径流量减少,引发河口下游生物种群生存栖息环境变化,导致水域生态系统变化。

完形填空
完形填空
       Walking a few kilometers a day is normal. How about walking 30km? This is   1   students did at the
Middle School Attached to Shangdong University in Jinan.
       The students there hiked about 30km from school to a local mountain and back. The school has held
hiking   2    since 2001, in order to   3   the students' bodies and minds, according to Zhao Yong, the
headmaster.
       The trip   4   about nine and a half hours, and more than 700 Junior 2 students took part in the hike.
The trip started at 7:30am and ended at 4:30pm on April 1.
       "I felt a strong team spirit during this   5   experience," said Li Yaoyu, 14, one of the flag bearers(旗手) of the hike. "When we fell behind others, strong students supported weak ones so that we could   6   the
trip.   Some of them helped me   7   the flag. I wouldn't have been   8   to finish the trip without their help."
       On the way back to school, Shao Mingyang, an eighth grade student, couldn't go on with   the trip
because he was a little   9  . "We suggested that he take the school   10   or give up the trip, but he   11   
and insisted(坚持) on walking by himself," said Wang Daoyuan, Shao's teacher.
       Shao came back to school at 5:05pm. He was the last to finish the hike. His classmates waited for him at the school gate and   12   for him. "I felt   13   for my students, especially Shao Mingyang. I'm happy to
see them learn the   14    of perseverance(坚持不懈), which will be very   15   in their future lives," said
Wang.
( )1. A. what    
( )2. A. lessons    
( )3. A. check    
( )4. A. cost    
( )5. A. special     
( )6. A. stop    
( )7. A. protect    
( )8. A. glad    
( )9. A. fat    
( )10.A. flag    
( )11.A. complained    
( )12.A. looked    
( )13.A. sorry    
( )14.A. lesson    
( )15.A. colorful    
B. how    
B. examinations
B. build  
B. spent  
B. normal  
B. continue  
B. fetch  
B. ready  
B. nervous  
B. uniform  
B. refused  
B. welcome  
B. thankful  
B. skill  
B. important  
C. when    
C. activities    
C. mix     
C. began    
C. tiring    
C. enjoy    
C. carry    
C. safe    
C. strong    
C. dinner    
C. agreed    
C. cheered    
C. proud     
C. way    
C. educational
D. why          
D. games        
D. train        
D. lasted        
D. healthy        
D. test            
D. guard          
D. able            
D. careless        
D. bus           
D. wondered        
D. served        
D. hopeful        
D. meaning        
D. modern          
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