问题 单项选择题

依次填入下列横线处的词语,最恰当的一组是()。

①2003年2月1日,美国“哥伦比亚”号航天飞机在从太空返回地面途中解体,机上7名宇航员全部______。消息传出,世界震惊。

②地球生态系统是经过自然界的长期______形成的,它是人类生活的惟一基础,失去这一基础,人类只能彻底毁灭。

③现在提倡的“研究性学习”模式,就是让我们置于问题情景中去体验,去动手、动脑,感受_______方案的设计、现象的观察、数据的处理和结果的分析。

A.遇害;变化;实验

B.遇难;演化;实验

C.遇难;演化;试验

D.遇害;变化;试验

答案

参考答案:B

解析:

这是一个同义词辨析题,①应是遇难,没有人加害他们,可以排除A、D;③既然是学习,就应为实验,选B。

阅读理解

阅读理解。     

        Not long before a university professor(大学教授)made several experiments (试验)with different

animals to find out which was the most intelligent. He found out the monkey was more intelligent than other animals.      

        In one experiment the professor put a monkey in a room where there were small boxes. Some boxes were inside other boxes. One small box has some food in it. The professor wanted to watch the monkey

and to find out how long it would take the monkey to find the food. The professor left the room. He waited a few minutes outside the door. Then he knelt (跪下)down and put his eye to the keyhole. What did he

see? To his surprise, he found himself looking directly(正好)into the eye of the monkey. The monkey was

looking at the professor through the other side of the door.      

1. The reading mainly wants to tell us____.    

A. the food is difficult for animals to find         

B. there are too many animals to feed          

C. the result of the experiment on a monkey             

D. the professor was clever to make the experiment     

2. The word "intelligent" in the reading means____.   

A. clever

B. worried     

C. quick    

D. careless  

3. The professor put the food in a small box to___.                

A. give the monkey a surprise        

B. see how the monkey ate from a box      

C. know how soon the monkey could find it       

D. find out how the monkey could open the box 

4. The professor watched the monkey by____.  

A. watching it through the keyhole        

B. waiting outside the door              

C. kneeling down at the door          

D. digging a hole in the door  

5. The experiments were probably(可能)made_____. 

A. in the forest           

B. outside a zoo with many people around           

C.in the forest                   

D. in the professor's home

单项选择题