[单项选择]Human babies are born in immature, helpless states, owing to ______.


A. the early birth of human fetuses
B. the big brains of the fetus
C. the constricted birth canals of the mother
D. both big brains and constricted birth canals

[单项选择]Human babies are born in immature, helpless states, owing to ______.


A. the early birth of human fetuses
B. the big brains of the fetus
C. the constricted birth canals of the mother
D. both big brains and constricted birth canals

[单项选择]The cost of elections in the United States is borne by both the government and the private sector.


A. known
B. fought
C. exposed
D. assumed

[单项选择]100,000 babies ______ born in this hospital every year.
A. are
B. were
C. would be
D. have been

[单项选择]New born babies can {{U}}discriminate{{/U}} between a man’s and a woman’s voice.
A. distinguish
B. treat
C. express
D. analyze

[单项选择]The children born in the United States today ______.


A. have much more chance of survival than those in the other countries
B. have as much chance of survival as before
C. will probably live to be 70 years old
D. have much more chance of survival than that of death

[单项选择]

Are some people born clever, and others born stupid Or is intelligence developed by our environment and our experience Strangely enough, the answer to these questions is yes. To some extent our intelligence is given to us at birth, and no amount of special education can make a genius out of a child born with low intelligence. On the other hand, a child who lives in a boring environment will develop his intelligence less than one who lives in rich and varied surroundings. Thus the limits of a person’s intelligence are fixed at birth, whether or not he reaches those limits will depend on his environment. This view, now held by most experts, can be supported in a number of ways.
It is easy to show that intelligence is to some extent something we are born with. The closer the blood relationship between two people, the closer they are likely to be in intelligence.Thus if we take two unrelated people at random from the population, it is likely that their degree of
A. Surroundings
B. Intelligence
C. Dependence on Environment
D. Effect of Education

[单项选择]Eleven states, including the adjoining states of North and South Carolina, seceded from the United States in the 1860's and formed a southern confederacy.


A. separated
B. neighboring
C. colonial
D. competing

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


A. Thirteen.
B. Fifty.
C. Fifty one.
D. Sixty.

[单项选择]Where was Johnson born


A. New York.
B. France.
C. India.
D. England.

[单项选择]After 1850,various states in the United States began to pass compulsory school attendance laws.
A. harsh
B. diversified
C. mandatory
D. complicated

[单项选择]The United States is composed of fifty states, two of ______ are separated from the others by land or water.
A. them
B. that
C. which
D. those