修改了下这位朋友的句法：
Too few people are concerning about traditional Chinese culture.Being the witness of the historic development of the city,Urban heritage is an important basis for historical research.An important aspect of sustainable development is to preserve the historic and cultural heritage.We can adopt the following methods in preservation.Above all,it is necessary to let the entire society know the significance of cultural resource and be conscious of preservation.Significant sites should be closed and kept clear from the public.Laws and regulations are required to be set to punish those who violate against them.Finally,the effect of education cannot be emphasized too much,by which the students could be guided to know the role of culture resource.