问题 选择题

下列几种动物的行为中,不能起到同种个体之间交流信息作用的是              

A.蜜蜂的舞蹈动作

B.蚂蚁在爬过的地方留下分泌物

C.黑长尾猴的各种叫声

D.乌贼受到敌害时释放墨汁

答案

答案:D

蜜蜂的舞蹈动作是通过动作告诉其它工蜂蜜源的位置、方向;蜂王释放的特殊分泌物是告诉雄峰自己的位置,对工蜂有管理作用;鸟类的各种鸣叫声,是通过叫声吸引异性的注意,因此都属于动物之间的信息交流;乌贼受到威胁时释放墨汁,把海水染黑,是为了掩护自己逃跑,不是动物之间的信息交流。

名词解释
阅读理解

阅读理解。

     On Christmas Eve-the night before Christmas Day-children all over Britain put a stocking at the end of

their beds before they go to sleep. Their parents usually tell them that Father Christmas will come during the

night. 

     Father Christmas is very kind and hearted. He gets to the top of each house and climbs down the chimney

into the fireplace. He fills each of the stockings with Christmas presents.

     Of course, Father Christmas isn't real. In Jim and Kate's house, "Father Christmas" is really Mr. Green. Mr.

Green doesn't climb down the chimney. He waits until the children are asleep. Then he quietly goes into their

bedrooms and fills their stockings with small presents. When they were very young, Mr. Green sometimes

wore a red coat. But he doesn't do that now. The children are no longer young, and they know who "Father

Christmas" really is. But they still put their stockings at the end of their beds.

1. Christmas Eve is _____.[ ]

A. the night of Christmas Day

B. the evening of Christmas Day

C. Christmas Day

D. the night before Christmas Day

2. Father Christmas often puts presents _____. [ ]

A. into children's hats

B. into children's stockings

C. under children's beds

D. into children's shoes

3. When the children were very young, _____. [ ]

A. they didn't know who Father Christmas was

B. they knew that Father Christmas wasn't real

C. they thought their father was Father Christmas

D. they knew who put the presents into their stockings

4. When the children are older, they _____.[ ]

A. know that Father Christmas is real

B. ask their mother to fill their stockings with presents

C. know that Father Christmas is really their father

D. know that Father Christmas is really their friend 

5. Father Christmas comes into the house through the _____. [ ]

A. chimney

B. back door

C. front door

D. window