A classic series of experiments to determine the effects of overpopulation on communities of rats was conducted by a psychologist,John Calhoun.In each experiment,an equal number of male and female adult rats were placed in an enclosure(场地).The rat populations were allowed to increase.Calhoun knew from experience approximately how many rats could live in the enclosures without experiencing stress due to overcrowding.He allowed the population to increase to approximately twice this number Then he fixed the population by removing the children that were not dependent on their mothers.At the end of the experiments,Calhoun was able to conclude that overcrowding causes a breakdown in the normal social relationships among rats,a kind of social disease.The rats in the experiments did not follow the same patterns of behavior as rats would in a community without overcrowding.
The females in the rat population were the most seriously affected by the high population density(密度).For example,mothers sometimes deserted their children,and,without their mothers’care,the children died.The experiments showed that in overpopulated communities,mother rats do not behave normally.Their behavior may be considered diseased and pathological(病理学的).
The leading males in the rat population were the least affected by over population.Each of these strong males claimed an area of the enclosure as his own.Therefore,these individuals did not experience the overcrowding in the same way as the other rats did..However leading males did behave pathologically at times.Their antisocial(反社会)behavior consisted of attacks on weaker male,female,and immature rats.This unusual behavior showed that even though the leading males had enough living space,they too were affected by the general overcrowding.
Non-leading males in the experimental rat communities also exhibited unusual social behavior.Some withdrew(缩回) completely ,avoiding contact with other rats.Other non-leading males were too active,chasing other rats and fighting each other.
The behavior of the rat population has similarity in human behavior.People in densely(密) populated areas exhibit unusual behavior similar to that of the rats in Calhoun’s experiments.In large urban areas,such as New York City,London,and Cairo,there are deserted children.There are cruel,powerful individuals,both men and women.There are also people who withdraw and people who become too active.Is the major cause of these disorders(混乱)overpopulation?
Calhoun’s experiments suggest that it might be.In any case,social scientists and city planners have been influenced by the results of this series of experiments.
1.Which of the following inferences(推断)can NOT be made from the first paragraph?
A.Overpopulation causes pathological behavior in rat populations.
B.Calhoun had experimented with rats before.
C.Calhoun’s experiment is still considered important today
D.Stress does not occur in rat communities unless there is overcrowding.
2.The author implies that the behavior of the leading male rats is sometimes similar to that of
A.people who would like to keep to themselves
B.people who abandon their children
C.too active people
D.cruel,powerful people
3.The main point of this passage is that _______________.
A.although rats are affected by overcrowding,people are not
B.overcrowding may be an important cause of social pathology
C.the social behavior of rats is seriously affected by overcrowding
D.Calhoun's experiments have influenced many people
高二英语阅读理解中等难度题
A classic series of experiments to determine the effects of overpopulation on communities of rats was conducted by a psychologist,John Calhoun.In each experiment,an equal number of male and female adult rats were placed in an enclosure(场地).The rat populations were allowed to increase.Calhoun knew from experience approximately how many rats could live in the enclosures without experiencing stress due to overcrowding.He allowed the population to increase to approximately twice this number Then he fixed the population by removing the children that were not dependent on their mothers.At the end of the experiments,Calhoun was able to conclude that overcrowding causes a breakdown in the normal social relationships among rats,a kind of social disease.The rats in the experiments did not follow the same patterns of behavior as rats would in a community without overcrowding.
The females in the rat population were the most seriously affected by the high population density(密度).For example,mothers sometimes deserted their children,and,without their mothers’care,the children died.The experiments showed that in overpopulated communities,mother rats do not behave normally.Their behavior may be considered diseased and pathological(病理学的).
The leading males in the rat population were the least affected by over population.Each of these strong males claimed an area of the enclosure as his own.Therefore,these individuals did not experience the overcrowding in the same way as the other rats did..However leading males did behave pathologically at times.Their antisocial(反社会)behavior consisted of attacks on weaker male,female,and immature rats.This unusual behavior showed that even though the leading males had enough living space,they too were affected by the general overcrowding.
Non-leading males in the experimental rat communities also exhibited unusual social behavior.Some withdrew(缩回) completely ,avoiding contact with other rats.Other non-leading males were too active,chasing other rats and fighting each other.
The behavior of the rat population has similarity in human behavior.People in densely(密) populated areas exhibit unusual behavior similar to that of the rats in Calhoun’s experiments.In large urban areas,such as New York City,London,and Cairo,there are deserted children.There are cruel,powerful individuals,both men and women.There are also people who withdraw and people who become too active.Is the major cause of these disorders(混乱)overpopulation?
Calhoun’s experiments suggest that it might be.In any case,social scientists and city planners have been influenced by the results of this series of experiments.
1.Which of the following inferences(推断)can NOT be made from the first paragraph?
A.Overpopulation causes pathological behavior in rat populations.
B.Calhoun had experimented with rats before.
C.Calhoun’s experiment is still considered important today
D.Stress does not occur in rat communities unless there is overcrowding.
2.The author implies that the behavior of the leading male rats is sometimes similar to that of
A.people who would like to keep to themselves
B.people who abandon their children
C.too active people
D.cruel,powerful people
3.The main point of this passage is that _______________.
A.although rats are affected by overcrowding,people are not
B.overcrowding may be an important cause of social pathology
C.the social behavior of rats is seriously affected by overcrowding
D.Calhoun's experiments have influenced many people
高二英语阅读理解中等难度题查看答案及解析
A classic series of experiments to determine the effects of overpopulation on communities of rats was conducted by a psychologist,John Calhoun.In each experiment,an equal number of male and female adult rats were placed in an enclosure(场地).The rat populations were allowed to increase.Calhoun knew from experience approximately how many rats could live in the enclosures without experiencing stress due to overcrowding.He allowed the population to increase to approximately twice this number Then he fixed the population by removing the children that were not dependent on their mothers.At the end of the experiments,Calhoun was able to conclude that overcrowding causes a breakdown in the normal social relationships among rats,a kind of social disease.The rats in the experiments did not follow the same patterns of behavior as rats would in a community without overcrowding.
The females in the rat population were the most seriously affected by the high population density(密度).For example,mothers sometimes deserted their children,and,without their mothers’care,the children died.The experiments showed that in overpopulated communities,mother rats do not behave normally.Their behavior may be considered diseased and pathological(病理学的).
The leading males in the rat population were the least affected by over population.Each of these strong males claimed an area of the enclosure as his own.Therefore,these individuals did not experience the overcrowding in the same way as the other rats did..However leading males did behave pathologically at times. Their antisocial(反社会)behavior consisted of attacks on weaker male,female,and immature rats.This unusual behavior showed that even though the leading males had enough living space,they too were affected by the general overcrowding.
Non-leading males in the experimental rat communities also exhibited unusual social behavior.Some withdrew(缩回) completely ,avoiding contact with other rats.Other non-leading males were too active,chasing other rats and fighting each other.
The behavior of the rat population has similarity in human behavior.People in densely(密) populated areas exhibit unusual behavior similar to that of the rats in Calhoun’s experiments.In large urban areas,such as New York City,London,and Cairo,there are deserted children.There are cruel,powerful individuals,both men and women.There are also people who withdraw and people who become too active.Is the major cause of these disorders(混乱)overpopulation?
Calhoun’s experiments suggest that it might be.In any case,social scientists and city planners have been influenced by the results of this series of experiments.
1.Which of the following inferences(推断)can NOT be made from the first paragraph?
A.Overpopulation causes pathological behavior in rat populations.
B.Calhoun had experimented with rats before.
C.Calhoun’s experiment is still considered important today
D.Stress does not occur in rat communities unless there is overcrowding.
2.The author implies that the behavior of the leading male rats is sometimes similar to that of
A.people who would like to keep to themselves
B.people who abandon their children
C.too active people
D.cruel,powerful people
3.The main point of this passage is that _______________.
A.although rats are affected by overcrowding,people are not
B.overcrowding may be an important cause of social pathology
C.the social behavior of rats is seriously affected by overcrowding
D.Calhoun's experiments have influenced many people
高二英语阅读理解简单题查看答案及解析
As ever, the Summer Movie Season is full of series and special effects. But if you’re prepared to look for them, you’ll find some smaller, odder films flying beneath the radar.
Book Club (May 18): A great quartet(四人组)of actresses (Diane Keaton, Jane Fonda, Candice Bergen, Mary Steenburgen) headline this comedy about a book club that gets back into a romantic mood after reading Fifty Shades Of Grey. It sounds ridiculous, but if that is a hook for a romantic comedy, it will be trying something new.
Tag (June 15): This comedy looks like it might share some DNA with The Hangover, as a group of friends reunite over the years to play a never-ending game of tag—Jeremy Renner, Jon Hamm, Hannibal Buress, Jake Johnson, Ed Helms, Leslie Bibb, Rashida Jones and Isla Fisher star. In other words: a lot of people we already know are funny, plus Jeremy Renner!
Uncle Drew (June 29): The attraction is that a young guy (Lil Rel Howery) has to renew a team of old men—played by NBA legends in old-age makeup—to play alongside his Uncle Drew (Kyrie Irving) in a big neighborhood game. This is such a strange idea for a comedy that I cannot wait to see it. Stars include Shaquille O’ Neal, Nate Robinson, Chris Webber, Lisa Leslie, Reggie Miller, J.B. Smoove and an up-and-coming comedy actress, Tifany Haddish.
Skyscraper (July 13): It wouldn’t be an action-movie season without Dwayne “The Rock” Johnson running off a crane(起重机)and leaping in a way that in reality would result in certain death but that in a movie results in a safe landing! I’m not here to tell you it’s more than it appears. I’m here to tell you it’s probably exactly as it appears. It comes out on July 13, so perhaps on the hottest day of the summer, forget your troubles and see The Rock save his family.
1.Which film can you enjoy this May?
A. Book Club. B. Tag. C. Uncle Drew. D. Skyscraper.
2.What is strange about Uncle Drew?
A. A lot of people in old-age makeup are very funny.
B. A young man has to employ some NBA legends to play in a game.
C. Some current NBA superstars will star in the film.
D. The author cannot wait to see the film.
3.Which film is not a comedy?
A. Book Club. B. Tag. C. Uncle Drew. D. Skyscraper.
高二英语短文困难题查看答案及解析
The inventor was determined to go on with the experiment_______countless failures.
A. instead of B.because of
C. in favor of D. regardless of
高二英语单项填空简单题查看答案及解析
Scientists _______ a lot of experiments on animals, hoping to find and effective way to cure the patients who had AIDS.
A.carried on | B.carried out | C.carried away | D.carried off |
高二英语单项填空中等难度题查看答案及解析
Through a series of experiments, an American scientist has gained an understanding of the social structure of ant societies. The ants 1. (examine) by scientists are the only creatures other than man to have given up hunting and collecting for a completely agricultural way of life. In their underground nests they plant gardens on soils made from finely cut leaves. This is a complex 2. (operate) requiring considerable division of labor. The workers of this type of ant can 3. (divide) into four groups according to size. 4. of the groups performs a particular set of jobs.
The making and care of the garden and the nursing of the young ants are done by the smallest workers. Slightly larger workers are responsible 5.cutting leaves to make them suitable for use in the gardens and for cleaning the nest. 6. third group of still larger ants do the construction work and collect fresh leaves from outside the nest. The 7. (large) are the soldier ants, whose duty is to defend the nest.
8. (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 9.efficiently these ants could find leaves and run back to the nest. Then he repeated the experiment for each of the other size groups. 10.this way he could see whether any group could do the job more efficiently than the group normally undertaking it.
高二英语短文填空中等难度题查看答案及解析
Since I have little work experience, I will have to take a series of unpaid internships ______ I could find my ideal job.
A.before B.after C.as D.when
高二英语单项填空中等难度题查看答案及解析
These experiences ______ me _____ the drug’s harmful effects.
A. are convinced; by B. convinced; of C. were convinced; by D. convinced; at
高二英语单项填空中等难度题查看答案及解析
These experiences ______ me _____ the drug’s harmful effects.
A.are convinced; by | B.convinced; of | C.were convinced; by | D.convinced; at |
高二英语单项填空简单题查看答案及解析
______ difficult it is, he is determined to ______ the experiment.
A.No matter how; have a go at | B.However; have a go for |
C.Whatever ; have a go | D.No matter what; have a go at |
高二英语单项填空简单题查看答案及解析