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Great changes have been made in family life because of science and industry. In the past, when more
Americans lived on farms, the typical family had many children. In a farm family, parents and their children
often lived with grandparents. Often too, uncles and aunts lived nearby. But when industry became more
important than agriculture in American life, families became smaller because industry requires workers who are
ready and able to move off the land and to move again whenever necessary. And large families cannot be moved
from place to place as smaller families can. So, at present people tend to have smaller families.
In the future, because of industrialization, a typical family will be required to move even more often than
now, so families will be even smaller. The typical family may remain childless and consist only of a man and a
woman. A small number of families may take raising children as their chief work. At the same time they may
also raise other people's children, leaving those families free to move from job to job.
1. Which of the following topics is discussed in the passage?

A. Development of science and industry in America.
B. Influence of science and industry on American families.
C. Harmful effect of industrialization.
D. Social problems resulting from the highly developed science and industry in America.
2. What kinds of families are described in the passage ?

A. Families of the past.
B. Families of the present and of the future.
C. Families of the past and of the future.
D. Families of the past, the present and the future.
3. According to the writer, what is one of the reasons that families are getting smaller in America?

A. Children tend to leave their parents and grandparents when they grow up.
B. People stop caring for having children.
C. The need for workers who are able to move at any time has been increasing.
D. Both old and young people prefer to live by themselves.
4. Who will take the chief responsibility of raising children in the future?

A. Most families.
B. All families.
C. Social workers.
D. A small number of families.
5. What can you infer (推断) from the passage?

A. Science and industry have caused thousands of families to split (破裂).
B. Children do not live with their parents or grandparents.
C. Large families can hardly survive (幸存) in modern society.
D. Americans are very choosy with their jobs.

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