Natural Food

Increasingly,overthe past ten years,people一especiallyyoung people一have become aware of the need to changetheir eating________(51),because much of the food they

eat,particularlyprocessed foods,is not good________(52)the health.Consequently,there has been agrowing ________(53)in natural foods;foods which do not________(54)

chemical additivesand which have not been________(55)by chemical fertilizers,widely used infarming today.

Natural foods,forexample,are vegetables,fruit and grain which have been grown in soil that isrich in organic matter. In simple________(56),this means that the soil has

been________ (57)byunused vegetable matter,which provides it with essential vitamins andminerals________ (58)in itself is a natural process compared with the use of

chemicals andfertilizers,the main ________(59)of which is to increase the________(60)(butnot the quality)of foods grown in

commercial farmingareas.

Natural foods alsoinclude animals which have been________(61)to feed and move freely inhealthy________(62).Compare this with what happens in the________(63)

production ofpoultry （家禽）:there arebattery farms,for example,where thousands of chickens live crowded together inone building and are fed________(64)food which

is little betterthan rubbish.Chickens kept in this way are not only tasteless as food;they alsoproduce eggs which________(65)important vitamins._________(61)

A.asked

B.allowed

C.required

D.ordered