Not too many decades ago it seemed “obvious” both to the general public and to sociologists that modern society has changed people’s natural relations, loosed their responsibilities __1
to kins（亲戚）and neighbors, and substituted in their place __2
for superficial relationships with passing acquaintances. __3
However, in recent years a growing body of research has revealed that the “obvious” is not true. It seems that if you are a city resident, you typically know a smaller proportion of your neighbors than you if you are a resident of a smaller community. __4
But, for the most part, this fact has a few significant consequences. __5
It does not necessarily follow that if you know few of your neighbors you will know no one else.
Even in very large cities, people maintain close social ties within small, private social worlds. Indeed, the number and quality of meaningful relationship do not differ between more and less urban __6
people. Small-town residents are more involved with kin than do big __7
city residents. Yet city dwellers compensate by developing friendships with people who share similar interests and activities. Urbanism may produce a different style of life, but the quality of life does not differ between town and city. Or are residents of large communities __8
any likely to display psychological symptoms of stress or alienation __9
than are residents of smaller communities. However, city dwellers do worry more about crime, and this leads them to a distrust for strangers. __10
在substitute A for B 的用法中，for引导的是被代替项而不是代替项。
4.（than you）^ do
Relationship既可以作可数名词又可以作不可数名词。由于前面有 the number of 这样分词修饰，这里relationship应该当作可数名词。
10. for 改为of
distrust 后往往跟of，不跟for，如：a distrust of the media。 It does not necessarily follow that if you know few of your neighbors you will know no one else.这话初看有点别扭。follow有这么个意思，必然是…的后果，必然有…后果，所以这里大概意思是：不认识什么邻居并不意味着你也不认识其他人。例如：He is good，it does not follow that he is wise.