题目内容：

英文阅读理解,求高手帮忙啊!
Look at your watch for just one minute.During that time the population of the world increased by eighty-five people.Perhaps you think that isn't much.In the next hour,more than 5,000 additional,people will be living on this planet.So it goes,hour after hour.In one day,there are about 120,000 additional mouths to feed.Multiply this by 365.What will happen in 100 years?
This population explosion may be the greatest challenge of today.Within the next forty years,the world population may double.Can the new frontiers of science meet the needs of the crowded world of tomorrow?
If the present rate of population increase for the next 600 or 700 years,there will be standing room only.Each person will have between 3 to 10 square feet of space in which to live.This includes the mountaintops,deserts,and the ice and snow fields of the polar regions.Of course,no one expects such a thing to happen.War,plague,famine,or some other catastraphe can expected to occur long before the population reaches this point.Actually,the danger is not in an overcrowded world where people are huddled together so that they cannot move arms and legs,but in an upset balance between population and resources.
1.This passage mainly talks about______.
A.the rate of population increase
B.the total number of population in the world
C.the problems caused by population explosion
D.the relation of science and population
2.According to the auther,in a hundred years'time______.
A.the world's population will be doubled
B.the world's population will be four thousand,three hundred and eighty million
C.there will be standing room only on this planet
D.there will be four thousand,three hundred and eighty million more people born to this planet
3."An upset balance between population and resources"means"______".
A.Some people have more resource than others
B.People will be worried about their resources
C.A small number of people will control most of the resources
D.There will not be enough resources to meet the needs of the large population
4.Which of the following statements is not true?
A.Eight-five people are born in this planet every minute.
B.There will be about 120,000 people in this planet tomorrow.
C.The world population in forty years will be twice as much as that of today.
D.Each person will only have standing room in 600 or 700 years.
5.According to the passage,population control is necessary because______.
A.too much population can cause trouble
B.our government objects to population explosion
C.three will not be enough food to meet the needs of the large population
D.most of people only want to have one child