问题 选择题

当鹿发现有敌情时,为首的鹿尾巴向后呈水平方向伸展开来,肛门后面白色部分显露出来,告知同伴,这种行为是(  )

A.防御行为

B.社会行为

C.攻击行为

D.繁殖行为

答案

防御行为:为了保护自己,防御敌害的各种行为都是防御行为.如逃跑、装死、释放臭气、保护色、警戒色、机体防御等.发现有敌情时,为首的鹿尾巴向后呈水平方向伸展开来,肛门后面白色部分显露出来,是通过动作引起同伴的警觉,防御敌害,保护鹿的防御行为.
故选:A

阅读理解

One day Mr. Brown sees a young woman in the street with children. He is very surprised because all the children are wearing the same clothes. White caps, blue coats and yellow trousers.

    “Are all these children yours?” he asks the woman.

    “Yes, they are.” she answers.

    “Do you always dress them in the same clothes ?” asks Mr. Brown.

“Yes, ” answers the mother. “When we have four children, we dress them in the same clothes because we don’t want to lose any of them. It is easy to see our children among other children because they are all wearing the same clothes. And now we have ten, we dress them like this because we don't want to take other children home by mistake. When there are other children among ours, it is easy to see them because their clothes are different.

小题1:How many people does Mr. Brown see in the street one day? He sees ____in all.

A.ten

B.eleven

C.four

D.ten children小题2:Why is he surprised? Because ________ .

A.all the children are boys

B.all the children are in the same clothes

C.all the children are lovely

D.all the children are wearing the same trousers小题3:Why does the woman dress her children in the same clothes?

Because_______________.

A.she has so many children

B.she loves her children

C.she doesn't want to take her children home

D.she wants to see her children easily among others小题4:What kinds of clothes are the children wearing when Mr. Brown sees them?

A.White caps, blue coats and yellow trousers.

B.Blue caps, yellow coats and white trousers.

C.Yellow caps, white coats and blue trousers.

D.White caps, yellow coats and blue trousers.小题5: “We don't want to take other children home by mistake.”这句话的汉语意思是:

                                                   

问答题 简答题