问题 选择题

母鸡失去雏鸡后,把无母的小猫当成自己的雏鸡来照顾,说明繁殖期间的母鸡哺育后代的行为是(  )

A.它的爱好

B.它的本能

C.它的生活需要

D.他怀念自己的雏鸡

答案

动物行为分为先天性行为和学习行为,先天性行为是指动物一出生就有的一种行为方式,是动物的一种本能,由体内的遗传物质决定的,如婴儿一出生就会吮吸 * * 吃奶、蜘蛛结网、蜜蜂采蜜的取食行为都是动物的一种本能;而学习行为是动物出生后在成长的过程中通过环境因素的影响,由生活经验和“学习”逐渐建立起来的,是在先天性行为的基础上建立的一种新的行为活动,也称为后天性行为,如老牛耕田则是一种学习行为.母鸡失去雏鸡后,把无母的小猫当成自己的雏鸡来照顾,说明繁殖期间的母鸡哺育后代的行为 属于先天性行为,母鸡育雏是一种本能.
故选:B

阅读理解

阅读理解。

                                                               The Real Chinese Food

     In China, there're many different kinds of food. Some of them are very popular. Dumplings are the real

Chinese food. Now let's talk about them, OK?  

     Everyone in China likes dumplings very much, and there are many different kinds of dumplings. Some

have meat and vegetables in them, others have sugar (糖), eggs and so on. I like dumplings with vegetables

and pork better than any other kind.   

     Usually people make dumplings at home. If you have no time to make them, you can buy them in any

supermarkets. Then you take them home and eat them with vinegar.   

     The Spring Festival is very important in China. When it comes, we make dumplings, usually we put a

coin (硬币) in a dumpling. If one eats the dumpling with the coin in it, he will be lucky in the year.   

     Now tell me, do you like dumplings?   

     Welcome to China, we'll ask you to eat the real Chinese food, dumplings.

1. In China, _____ are the real Chinese food.[ ]

A. noodles

B. dumplings

C. moon cakes

D. vegetables

2. The writer likes dumplings with _____ best. [ ]

A. meat

B. seafood

C. vegetables and pork

D. vegetables

3. You can buy dumplings in a supermarket when _____. [ ]

A. you have time

B. you are happy

C. you are busy

D. you are hungry

4. The word "vinegar" in the sentence means _____. [ ]

A. 糖

B. 酱油

C. 辣椒

D. 醋

5. Which of the sentences is wrong?   [ ]

A. The Chinese like dumplings very much.  

B. If one eats the dumpling with the coin in it, he will be lucky in the year.  

C. The author (作者) doesn't like dumplings with vegetables.

D. Now people are richer and they often eat dumplings.

单项选择题