英語(yǔ)翻譯
let us consider what we can do for thefood problem
the simple way to increase food production ,one might suppose ,is to bring more land into farmland and put more people to work on it.
but it is proved in some developing countries that this will bring some problems.it will quickly make some soil poorer and destroy forest growth furture more ,the people there will always find they need more people to work on this land to produce more food .
duringg the past 20years,some deveoping countries thve increased a lot more farmland in their countries,but their populations in meantime have grown faster,therefore they are faarther than before.and their food increase has been gained at cost of using up rich lands.many of the lands have become poor lands and are producing less food now.
meanwhile ,farming in the develope countries has produced more food through improved technology .since 1940,farmland has been reduced 7 percent in the united states but cereal production has jumped 60 percent .the increase in the corn output ,thanks to hybrid corn ,has been even greater.
the secret is scientific ways,of course,and compared to the developing countries ,the poputions in developed countries have increased just a little larger than twenty years ago .
on the whole ,world population today in increasing at the speed higher than ever before .every year the population in two percent larger ,so that the 6000million people on the earth today will present another 120million mouths to be fed by the time next year.it is a fearsome thought that this time tomorrow there will be added to this world population some 360 thousand persons.
what can we do about the increase population ,or the lack of food to feed such a large ,increasing population that is a very important problem before everyone on the earth ,young or old,men or women.