第二类 

158.For example, some early societies ceased to consider certain ritesessential to their well-beingand abandoned them, nevertheless, theyretained as parts of theiroral tradition the myths that had grown up aroundthe rites and admired them fortheir artistic qualities rather than for theirreligious usefulness. 

159.Famous explorers of the north American frontier, Lewis and Clark had experienced great difficultyfinding game west of the Rockies and not untilthe second of December didthey kill their first elk. 

160.We might expect that early artistic efforts would be crude, but the cavepaintings of Spain and southern France show a marked degree ofskill. Sodo the naturalistic paintings on slabs of stone excavated insouthern Africa. 

161.Not only could Smith identify rock strata by the fossils they contained,he could also see a pattern emerging: certain fossils always appear inmore ancient sediments, whileothers begin to be seen as the stratabecome more recent. 

162.Only recently have investigators considered using these plants toclean up soil and waste sitesthat have been contaminated by toxic levelsof heavy metals – anenvironmentally friendly approach known asphytoremediation. 

163.“ had the Greeks held novelty in such disdain as we,” asked Horace in his Epistle, “what work ofancient date would now exist?” 

164.Nor did the Whigs envision any conflict in society between farmers andworkers on the one hand andbusinesspeople and bankers on the other. 

165.Interbedded with the salt were thin layers of what appeared to bewindblown silt. 

166.From this arose the Roman genius for military organization and orderly government. 

167.With the loss of personal freedom also came the loss of standing in the community. 

168.Only when it has been chewed up and digested almost to a liquid canthe food pass through therumen and on through the gut.