自然灾害(10分) 阅读图文材料,完成下列要求。 材料一海冰是海中一切冰的总称,

题型:综合

问题:

自然灾害(10分)

阅读图文材料,完成下列要求。

材料一 海冰是海中一切冰的总称,海洋中的冰主要是由海水冻结而成的,也有一部分是来自江河注入海中的淡水冰。

材料二 新华网北京2013年1月23日电:受弱冷空气影响,近两日渤海海域气温明显下降,海冰范围明显加大,国家海洋预报台22日再次拉响辽东湾海冰蓝色警报。(下图)

(1)描述图中海冰分布及其特点。(4分)

(2)简述海冰灾害带来的不利影响。(6分)

考点:中国的海洋灾害中国的地质灾害中国的气象灾害中国的生物灾害
题型:综合
完形填空.
      Football may be the most _1_ of the games. People in many _2_ around the world like playing it.
In the 19th century (世纪) _3_ in England first played this kind of balls. The players moved the ball
_4_ .The first international (国际的) football game was between England and Scotland in 1872.
     Football is played by _5_ with eleven men on each team. Each team has one way to _6_. It must
score more goals (进球) _7_ the other team. Each _8_ in games is one point (分).Football is a round
ball. Players may kick (踢) it and _9_ it by any part of the body except the _10_. Only one player on
the team can use his hands. This player is the goal keeper.
     A football game usually _11_ for ninety minutes. The teams play for forty-five minutes, and then take a
short rest. After this halftime rest, they play again for _12_ forty-five minutes.
     Now football is one of _13_ played in the Olympics (奥林匹克运动会). Another important
international football match is called the World Cup. The World Cup is had _14_ every four years. The
_15_ of the World Cup match is the world champion (冠军) football team.
( )1.  A. careful      
( )2.  A. towns      
( )3.  A. people    
( )4.  A. with his foo t
( )5.  A. two teams
( )6.  A. win        
( )7.  A. as        
( )8.  A. football    
( )9.  A. move      
( )10. A. feet      
( )11. A. begins      
( )12. A. other      
( )13. A. the sport teams
( )14. A. first      
( )15. A. win          
( )1.  A. careful      
( )2.  A. towns      
( )3.  A. people    
( )4.  A. with his foo t
( )5.  A. two teams
( )6.  A. win        
( )7.  A. as        
( )8.  A. football    
( )9.  A. move      
( )10. A. feet      
( )11. A. begins      
( )12. A. other      
( )13. A. the sport teams
( )14. A. first      
( )15. A. win          
C. dangerous    
C.  villages    
C. children      
C. with their feet
C. one team
C. won          
C. than            
C. ball          
C. carry        
C. hands        
C. kicks          
C. the others      
C. the team sports
C. once          
C. won          
D. difficult        
D. countries        
D. football        
D. by their feet    
D. four teams      
D. winner          
D. in              
D. player          
D. lift            
D. bodies          
D. gets            
D. another          
D. the team sport  
D. the first        
D. winner          
题型:综合

某行星和地球绕太阳公转的轨道均可视为圆.每过N年,该行星会运行到日地连线的延长线上,如图所示.该行星与地球的公转半径比为(  )

A.(

N+1
N
)
2
3

B.(

N
N-1
)
2
3

C.(

N+1
N
)
3
2

D.(

N
N-1)
3
2

题型:综合
如图所示为一磁流体发电机示意图,A、B是平行正对的金属板,等离子体(电离的气体,由自由电子和阳离子构成,整体呈电中性)从左侧进入,在t时间内有n个自由电子落在B板上,则关于R中的电流大小及方向判断正确的是(  )

A.I= ,从上向下

B.I= ,从上向下

C.I= ,从下向上

D.I= ,从下向上

题型:综合

采用动态法测角时,粗测与精测是分开进行的,由微处理器显示或存储角值。( )

题型:综合

药物的局部作用与药物的直接作用一致。

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