[简答题]American scientists concluded that while daily exercise is most helpful, every other day, three days a week will keep a sufficient level of physical fitness. ( Passage Four)

[简答题]American scientists concluded that while daily exercise is most helpful, every other day, three days a week will keep a sufficient level of physical fitness. ( Passage Four)

[单项选择]

American ethnocentricity, while manifest in general attitudes toward others is, of course, tempered somewhat by the very heterogeneity of the population that we have been examining. Thus, while there are the broad standard-expressed in the ways most Americans set goals for their children, organize their political lives, and think about their society in contrast to others-living in our racial and ethnic mosaic makes us more inclined to think in terms of layers or circles of familiarity. A black from Chicago feels and thinks very "American" in lago or Nairobi as does an Italian from Brooklyn when visiting relatives in Calabria or Sicily. But when they get home, they will generally reveal to feeling "black" in contrast to "white" and Italian in comparison to other Americans in their own communities.
Ethnocentrism is found in political as well as in ethnic contexts. Much of the disc
A. ethnocentrism is a psychological problem
B. ethnocentrism exists parochially
C. ethnocentrism varies in degree and intensity in different social groups
D. ethnocentrism is a universal phenomenon

[单项选择](While) some pirate ships deprived early American colonists of (many) needed supplies, (others) smuggled in goods, subverted(破坏) British taxes, and (help) in the Revolutionary War.（）
A. While
B. many
C. others
D. help

[单项选择]
American has always been a land of beginnings. After Europeans "discovered" America in the fifteenth century, the mysterious New World became for many people a genuine hope of a new life, an escape from poverty and persecution, a chance to start again. We can say that, as nation, America begins with that hope. When, however, does American literature begin
American literature begins with American experiences. Long before the first colonists arrived, before Christopher Columbus, before the Northmen who "found" America about the year 1,000, Native Americans lived here. Each tribe’s literature was tightly woven into the fabric of daily life and reflected the unmistakably American experience of lining with the land. Another kind of experience, one filled with fear and excitement, found its expression in the reports that Columbus and other explorers sent home in Spain, French and English. In addition, t
A. The hope that America would be discovered.
B. The hope to start a new life.
C. The hope to see the mysteries of the New World.
D. The hope to find poverty her

[简答题]Daily routine Would you like to change your daily routine

[填空题]British English vs. American English
American English is the form of English used in the United States. British English is the form of English used in the United Kingdom.
Ⅰ. History
A. the introduction of English to the Americans
—time: in the (1) (1)______
—way: by colonization
B. divergence after the introduction
—result: BE and AE
Ⅱ. Accents
A. before American independence
—American and British accents were similar
—both AE and BE were rhotic
i.e.letter R was pronounced (2) (2)______
B. since 1976
—accents diverged
—British English changed more
C. towards the end of the 18th century
—non-rhotic speech became (3) in Britain (3)______
—exce