According to the anther, television, as well as primed matter, offer a good chance to stud
A.Y
B.N
C.NG
A.Y
B.N
C.NG
第1题
According to Choe's hypothesis,
A.the“I'm dead”chemical leaves the body of an ant when it dies.
B.an ant still smells like a living one when it dies.
C.an ant gives off a new chemical when it dies.
D.the“I'm not dead yet”chemical leaves the body of an ant when it dies.
第2题
A.These products are cheaper and more persuasive.
B.They are abiding by a kind of new contract.
C.The manufacturer of the products urges them to buy.
D.Buying such products has become a vogue.
第3题
The making and care of the gardens and the nursing of the young ants are done by the smallest workers. Slightly larger workers are responsible for chopping up leaves to make them suitable for use in the gardens and for cleaning the nest. A third group of still larger ants do the construction work and collect fresh leaves from outside the nest. The largest are the soldier ants, responsible for defending the nest.
To find out how good the various size-groups are at different tasks, the scientist measured the amount of work done by the ants against the amount of energy they used. He examined first the gathering and carrying of leaves. He selected one of the size-groups, and then measured how efficiently these ants could find leaves and run back to the nest. Then he repeated the experiment for each of the other size-groups. In this way he could see whether any group could do the job more efficiently than the group normally undertaking it.
The intermediate-sized ants that normally perform. this task proved to be the most efficient for their energy costs, but when the scientist examined the whole set of jobs performed by each group of ants it appeared that some sizes of worker ant were not ideally suited to the particular jobs they performed.
In which way are the ants different from other non-human societies?
A.They do not need to search for food.
B.They do not need to look for shelter.
C.Individuals vary in social status.
D.Individuals perform. different functions.
第4题
Take Ladan and Laleh Bijani from Iran. They were identical twins who had spent their entire 29 years joined at the head. And yet, Ladan, the more outspoken of the pair, told journalists, "We are two completely separate individuals, we have different world views, We have different lifestyles, we think very differently about issues." Why did Ladan and Laleh have different personalities?
Self-organized systems in insects can provide us with some ideas. A colony of ants, for example, can be seen as a self-organized system. No supervisor tells the ants what to do, and yet all the jobs get done. The system works in such a way that if one ant carries out a particular job, it be comes less likely that another ant will attempt that job because it no longer needs doing. The result is what economists call "division of labor. "
Self-organization also produces division of labor in human groups. Each individual looks for something to specialize in, his or her own suitable position in the group. If one position is occupied, the individual will seek another. This process increases the differences even between identical twins, because once they've chosen different specialities, a circular mechanism causes small initial differences between them to widen.
Although identical twins look very much alike, people who know them well will distinguish between them. They might, for example, address more questions and comments to one twin than the other—perhaps by chance first. But the consequence is that the twin who is addressed more of ten will do more talking than the other twin, which will cause people who know them to address still more of their questions and comments to that twin. The result, over time, will be one outspoken twin and one quieter one—like Ladan and Laleh Bijani.
According to the writer we learn that identical twins______.
A.differ in personality
B.differ in appearance
C.have the same lifestyle
D.have the same outlook
第5题
Text 2
Identical twins are a perfect test case for theories of personality development. If a theory can' t explain the differences between identical twins, then it cannot explain environmental effects on per-sonality. Even identical twins brought up in the same home have different personalities.Take Ladan and Laleh Bijani from Iran. They were identical twins who had spent their entire 29 years joined at the head. And yet, Ladan, the more outspoken of the pair, told journalists,"We are two completely separate individuals. we have different world views,We have different lifestyles, we think very differently about issues. " Why did Ladan and Laleh have different person-alities?
Self-organized systems in insects can provide us with some ideas. A colony of ants, for exam-ple, can be seen as a self-organized system. No supervisor tells the ants what to do, and yet all the jobs get done. The system works in such a way that if one ant carries out a particular job, it be- comes less likely that another ant will attempt that job because it no longer needs doing. The result is what economists call "division of labor. "
Self-organization also produces division of labor in human groups. Each individual looks for something to specialize in, his or her own suitable position in the group. If one position is occu-pied, the individual will seek another. This process increases the differences even between identical twins, because once they' ve chosen different specialities, a circular mechanism causes small initial differences between them to widen.
Although identical twins look very much alike, people who know them well will distinguish between them. They might ,for example, address more questions and comments to one twin than the other-perhaps by chance first. But the consequence is that the twin who is addressed more often will do more talking than the other twin, which will cause people who know them to address still more of their questions and comments to that twm. The result, over time, will be one outspo-ken twin and one quieter one-like Ladan and Laleh Bijani.
51. According to the writer we learn that identical twins_________
[ A] differ in personality
[B] differ in appearance
[C] have the same lifestyle
[D] have the same outlook
第6题
There are more ______ than other kinds in an ant family.
A.queens
B.workers
C.soldiers
第7题
Small as it is, the ant is ____________ (同样是) a creature as are all other animals on earth.
第8题
The passage“Night of the Living Ants”tells us about
A.how an ant is moved out of the nest at night.
B.what an ant does at night.
C.how an ant finds its way in darkness.
D.what happens when an ant dies.
第9题
The ant colony is perceived to be well-organized because_________
[A] each ant has the duty to help others on a job
[B] each ant instinctively fulfills a different task
[C] a particular group of ants does a particular job
[D] a leading ant monitors the work of working ants
第10题
The ant colony is perceived to be well-organized because______.
A.each ant has the duty to help others on a job
B.each ant instinctively fulfills a different task
C.a particular group of ants does a particular job
D.a leading ant monitors the work of working ants
第11题