问题 选择题

生物圈中的动物具有许多复杂的行为,①蜜蜂 ②蚂蚁 ③青蛙 ④蝴蝶 ⑤狒狒其中具有社会行为的一组是(  )

A.①②⑤

B.①③⑤

C.②④⑤

D.①②④⑤

答案

具有社会行为的动物,群体内部往往形成一定组织,成员之间有明确分工,有的高等动物还形成等级.如蚂蚁的群体有蚁后、雄蚁、工蚁,需要彼此配合、密切合作才能维持群体的正常生存;黑猩猩群体内有严格的等级制度,有首领,负责指挥、协调内部成员之间的关系,其他成员必须服从首领.蜜蜂群体中有蜂王、雄峰和工蜂,并分工明确,各负其责.青蛙、蝴蝶则不具备这些特点,不具有社会行为.

故选:A

单项选择题
阅读理解

阅读理解。

     What can help you make a fortune in the future? Graduating from a top university might not be

enough. A new study from the University of Essex in Britain has shown that the more friends you

have in school, the more money you'll earn later.

     The idea that popularity could have a serious impact on one's earning potential shouldn't come

as too much of a surprise. The researchers noted that if you want to get ahead in life, social skills

and networking are easily as powerful as talent and hard work.

     "If a person has lots of friends, it means that he or she has the ability to get along with others in

all kinds of different situations," said Xu Yanchun, 17, from Nantou High School in Shenzhen, who

totally agreed with the recent finding. "Also, friends always help each other. They not only create

wider social circles for you but lift your mood when you occasionally feel depressed," said Xu.

She believed that all this helps you "earn a higher salary".

     Maybe that's why some people think the younger generations are in the age of friendaholism

(交友狂症). A woman even complained that the networking website Facebook's 5,000friend

limit was too low for her large reserve of social contacts.

     But what does a friend mean? Should friends be regarded as a form of currency?

     "Call me uncool, but I think of a friend as an actual person with whom I have an actual history

and whom I enjoy actually seeing. It seems, however, that this is no longer the definition(定义)of

'friend'," said Meghan Daum, who works with The Los Angeles Times in the US.

     Daum despised(鄙视)the idea that quantity trumps(胜过)quality in the age of friendaholism. She

thought the idea of friendship, at least among the growing population of Internet social networkers,

was to get as many of notreallyfriends as possible. For example, a friend might be someone you

might know personally but who could just as easily be the friend of a friend of some other Facebook

friends you don't actually know.

1.What's the main idea of the passage?

A.Making friends is important.

B.Making friends makes you earn more money.

C.Friends give you success.

D.Social skills are important.

2.Which of the following sentences is TRUE?

A.It is surprising that making more money is popular with people.

B.If you want to win in life, social skills are as important as talent and hard work.

C.The young now have friendaholism.

D.Friends do not create your wider social circles but lift your mood when you occasionally feel

depressed.

3.What's the opinion of Xu Yanchun about making friends?

A.Making friends may help you a lot in your life.

B.Making friends can get a lot of money.

C.Making friends can make you work hard.

D.Making friends can improve your ability to work.

4.What's the author's attitude?

A.Objective.  

B.Subjective.

C.Neutral.  

D.Optimistic.