大学英语2Questions 11 to 15 are based on the following passage.S

大学英语2
Questions 11 to 15 are based on the following passage.
Social change is more likely to occur in societies where there is a mixture of different kinds of people than in societies where people are similar in many ways.The simple reason for this is that there are more different ways of looking at things present in the first kind of society.There are more ideas,more disagreements in interest,and more groups and organizations with different beliefs.In addition,there is usually a greater worldly interest and greater tolerance in mixed societies.All these factors tend to promote social change by opening more areas of life to decision.In a society where people are quite similar in many ways,there are fewer occasions for people to see the need or the opportunity for change because everything seems to be the same.And although conditions may not be satisfactory,they are at least customary and undisputed.
Within a society,social change is also likely to occur more frequently and more readily in the material aspects of the culture than in the non-material,for example,in technology rather than in values; in what has been learned later in life rather than what was learned early; in the less basic and less emotional aspects of society than in their opposites; in the simple elements rather than in the complex ones; in form rather than in substance; and in elements that are acceptable to culture rather than in strange elements.
Furthermore,social change is easier if it is gradual.For example,it comes more readily on human relations on a continuous scale rather than one with sharp dichotomies (二分法).This is one reason why change has not come more quickly to black Americans as compared to other American minorities,because of the sharp difference in appearance between them and their white counterparts.
11.According to the passage,one of the factors that tend to promote social
change is _____.
A) mutual interest
B) different points of view
C) more worldly people
D) advanced technology
12.Social change is less likely to occur in a society where people are
quite similar in many ways because _______.
A) people there are always satisfied with their living conditions
B) people there have identical needs that can be met without much disputes
C) people there have got accustomed to their conditions that they seldom
think it necessary to change
D) people there are less emotional and easy to please

11B,
从The simple reason for this is that there are more different ways of looking at things present in the first kind of society.There are more ideas,more disagreements in interest,and more groups and organizations with different beliefs.可以得出答案
12,C
从And although conditions may not be satisfactory,they are at least customary and undisputed找出答案