Text: FOOD
Man has added extraneous substances to his food since prehistoric times. Salt and spices are the oldest 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.
PARAPHRASING: Most food nowadays contains additives.
Text: WORK
Mankind is always searching for a better life. One way of improving it is to plan work so that it corresponds to the capacities and needs of the worker. Ergonomics is concerned with fitting work to man. It doesn't limit its goal to the elimination of physical hazards to health, but aims at making the work more satisfying to the worker.
PARAPHRASING: Work can be organised to suit the capabilities of humans.
Text: Sight
It is not necessary to emphasize the enormous restrictions that blindness imposes upon the ordinary procedures of earning a living: we're only too well aware that we're in general more dependent on sight than on smell, touch or hearing. But it's worth pointing out that sight affects the knowledge of the world we receive through our other senses.
PARAPHRASING: We depend on sight.
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