[单项选择]　　Crosby’’s recent study of American historical demography is blithely based on the reconstitution of the records of single parishes, a method that often excludes migrants. Moreover, it is troublesome for historians to obtain information on the birthdates of people who relocated to the parish, and equally difficult to follow those who had migrated to new places of residence. Thus, the exclusion of migrants also followed from the way spatial units were once conceived by the parishioners themselves, a stable and unchanging pre-modern countryside of interchangeable towns unlike "modern" flows to cities. 　　As a result, migration was improperly assumed to be irrelevant because the small units in the countryside were interchangeable and migrants into a parish could thus stand as a proxy for those who had left. In any case, it was thought that migration in the countryside was repetitive and occurred only in response to life course events, such as finding a spouse, and thus, like the parishi
A. summarizing the findings of a study
B. placing new research within its historical context
C. evaluating the methodology of a historian
D. comparing various demographical techniques
E. establishing categories

[单项选择]　　Crosby’’s recent study of American historical demography is blithely based on the reconstitution of the records of single parishes, a method that often excludes migrants. Moreover, it is troublesome for historians to obtain information on the birthdates of people who relocated to the parish, and equally difficult to follow those who had migrated to new places of residence. Thus, the exclusion of migrants also followed from the way spatial units were once conceived by the parishioners themselves, a stable and unchanging pre-modern countryside of interchangeable towns unlike "modern" flows to cities. 　　As a result, migration was improperly assumed to be irrelevant because the small units in the countryside were interchangeable and migrants into a parish could thus stand as a proxy for those who had left. In any case, it was thought that migration in the countryside was repetitive and occurred only in response to life course events, such as finding a spouse, and thus, like the parishi
A. Migration between towns stands in direct contrast with the accumulation of population in cities.
B. Parish populations would grow at fairly equal rates, given the fact that those who left a parish in response to life course events were usually replaced.
C. Migration between parishes was a rare enough phenomenon that it was unnecessary to keep records of it in any fashion.
D. Parish populations often chose to remain sedimentary as a result of the homogeneity of the various countryside parishes.
E. Parish populations owed their existence on the whole to the influx of populations due to life course events.

[单项选择]The recent study of has produced some interesting results showing that humans have a built-in 24-hour biological clock.
A. biographs
B. biorhythms
C. bioscopes
D. biotypes

[填空题]A recent study reported that Japanese workers were ______than commonly thought.

[单项选择]

In a recent study on the connection between brain abnormalities and violent behavior, the researcher examined more than three hundred people who had engaged in unusually violent behavior toward friends and family members. In most of the people studied, the researcher found clues of brain abnormalities, including evidence of past brain injury and physical abnormality. The researcher concluded that evidence of brain abnormalities could be used to predict violent behavior.
Which of the following, if true, would most seriously weaken the researcher’s conclusion（）

A. The incidence of brain abnormalities in the general population is as high as that in the group examined
B. The brain abnormalities discovered in those studied are of two distinct kinds
C. A wide variety of violent actions were exhibited by those studied
D. Those studied in the experiment acted violently toward strangers as well as toward people they knew
E. The study drew its subjects from a large geographical area

[填空题]According to Csaba Csere, a recent study suggested _________________________________________.

[单项选择]A recent study shows that more and more Americans are choosing to work at home.
There are several reasons for the change. One reason is many parents want more time to be with their children at home. Another is that people want the freedom to decide for them- selves how and when to do their job. The chance to work at home lets people live wherever they wish—out in the country, perhaps. It also makes it possible for many others—disabled and other persons, new mothers-to do useful work and earn money.
About half the people who work at home operate their own business. They sell products or services. The other half works for companies. They may make things, such as clothes. Or they may do office work, such as copying letters. A smaller number work at highly skilled jobs as designers or engineers.
The revolution(革命) in computer technology is one of the main reasons for the change to working at home.
Computers are now used in almost every American workplace in offices, in
A. A．advantages of working at home in the U. S.
B. B．computers widely used in the U. S.
C. C．the necessity of working at home in the U. S.