[单项选择]In the United States, the black people are often referred to as ______ in which the colour of their skin that caused them troubles and sufferings is NOT mentioned in English euphemisms. （ ）
A. niggers
B. negroes
C. the black
D. African Americans

[单项选择]Immigration to the United States by people with shorter average height is no reason for the decline in the average height in America because______.
A. Asians came to the United States only in recent years
B. Asians are taller than immigrants from other areas
C. the immigration by people with shorter average height is not large enough
D. immigrants of other ethnicities usually have good access to medical care and nutrition

[单项选择]In the United States there are more people who are {{U}}obese{{/U}} today than twenty years ago.
A. gainfully employed
B. upwardly mobile
C. excessively overweight
D. privately educated

[单项选择]People in the United States in the nineteenth century were haunted by the prospect that unprecedented change in the nation' s economy would bring about social chaos.
A. occupied
B. overwhelmed
C. obliged
D. obsessed

[单项选择]Millions of people in the United States suffer from ______ back pain that comes from sitting too long at a desk.
A. chronic
B. casual
C. catastrophic
D. elastic

[单项选择]Young people in the United States usually become husband and wife _______.

[单项选择]During the United States Civil War, many people in the South were forced to flee their home.
A. return to
B. pay taxes on
C. run away from
D. rebuild

[单项选择]

Text 2
People in the United States in the nineteenth century were haunted by the prospect that unprecedented change in the nation’s economy would bring social chaos. In the years following 1820, after several decades of relative stability, the economy entered a periodof sustained and extremely rapid growth that continued to the end of the nineteenth century. Accompanying that growth was a structural change that featured increasing economic diversification and a gradual shift in the nation’s labor force from agriculture to manufacturing and other nonagricultura pursuits
Although the birth rate continued to, decline from its high level of the eighteenth and early nineteenth centuries, the population roughly doubled every generation during the rest of the nineteenth century. As the population grew, its makeup also changed. Massive waves of immigration brought new ethnic groups into the country. Geographic and social mobility -- downward as well as
A. Women's lives significantly improved as the United States economy expanded
B. Women had more opportunities for employment in the western United States than in other regions
C. The home after 1820 was a superior social entity to that of the eighteenth century
D. Increased social fragmentation negatively affected middle class family life

[单项选择]Few people in the United States lost their lives because
A. the temperature was still endurable
B. people remained in air-conditioned rooms
C. effective measures had been taken to reduce the hot temperature
D. air-conditioning units sometimes failed to work properly

[单项选择]How many people are there in the United States in 1987


A. 259 million.
B. 117 million.
C. 175 million.
D. 230 million.