问题 单项选择题

科技人员选取某地同一自然条件下三种不同类型的茶园,进行物种丰富度的调查,结果如下图。据图判断正确的是()

A.纯茶园物种数变化幅度最小,不易产生暴发性虫害

B.杉茶间作园各物种的种群密度在10月份时最大

C.梨茶间作园的营养结构在6月份时最为复杂

D.人类生产活动不会改变茶园的群落结构

答案

参考答案:C

阅读理解

阅读理解。

     A terrible explosive noise was heard, immediately followed by strong shaking of the classroom building.

Mrs Li Lan, a country school teacher in Sichuan, who was giving a class, could hardly keep on her feet, and

many of her pupils made panic cries. Mrs Li realized at once that it must be a powerful earthquake hitting the

area. Though she herself was scared, she managed (设法) to make the children calm down, opened the door

right away and told the children to leave the classroom and get down to the playground as quickly as possible.

     When all the children had left, she followed them to the first floor. The earth still kept moving violently

(巨烈地). Some of the buildings nearby were falling down, and a great number of falling stones were rolling

down from the hills behind the school. Suddenly, she found a little boy fell over and was hit by a big stone

right on his body. She forgot the danger she was facing and ran over, trying to push the stone away. The

stone was so big that it was not easy for her to move it. She kept pushing until the boy was pulled out,

carrying him to the center of the playground. The boy was later sent to hospital and saved.

1. What kind of disaster (灾难) happened in the story?

   ____________________________________________________________ 

2. What were the children doing when the disaster happened?

   ____________________________________________________________

3. What was Mrs Li's action when she saw the boy under the stone?

   ____________________________________________________________

4. Did Mrs Li fear death in the face of great danger?

   ____________________________________________________________

5. What do you want to say after you finish reading the story?

    ____________________________________________________________

填空题