帮我把这3段很短的段子每一段概括为一两句话谢谢?

帮我把这3段很短的段子每一段概括为一两句话谢谢?
每一段做一个一两句话长度的summary
1,in most developing countries,two- thirds or more of the people live in rural areas,with few,if any,of the city-dweller takes for granted.Water taps in houses,for example,are almost unknown.at best,there may be a village well.often the only source of water is a lake or a stream,perhaps several kilometers away.the drudery of water-carrying can take up the better part of every day.
2.Man has added extraneous substances to his food since prehistoric times.Salt and spices are the lodest food additives we know of,used by prehistoric man to preserve his meat and fish,and to make the taste more interesting.today ,the substances,natural and synthetic,added to food run into thousands.most of the foods we buy contain one or more additives.
3.The way i see it,people need to be made far more aware of safety in ordinary everydaysituations- a classic example,of course,is the child reaching foa the bottle of tables Mum forgot to lock away- and it seems to me that the cinema would be the ideal place in which to get the message across.A film about safty tucked at the end of the forthcoming attractions and advertisements would the be seen by a large section of the population.