Every country tends to accept its own way of life as being normal one and to praise or

Population tends to grow at an exponential(指数的)rate. This means that they progressively double. As an example of this type of growth rate take one penny and double every day for one month. After the first week, you would have only 64 cent, but after the fourth week you would have over a million dollars.

This helps explain why the population has come on“all of a sudden” took from he beginning of human 1ife to the year 1830 for the population of the earth to reach one billion. That repents(缓慢进行) a time span of at least two million years. Then it took from 1830 to 1930 for world population to reach 2 billion. The next billion was added by 1960 only thirty years and in 1975 world population reached 4 billion which is another billion people in only fifteen years.

World population is increasing at a rate of 9, 000per hour, 220,000 per day and 80 million per year.

This is not only due to higher birth rate, but to lower death rate as well. The number of births has not declined at the same rate as the number of deaths.

Some countries such as Columbia, Thailand, Morocco, Costa Rica and the Philippines are doubling their population about every twenty-one years with a growth rate of 3.3 percent a year or more. The United States is doubling its population about very eighty-seven years, with a rate of 0.8 percent per year.Every time a population doubles, the country involved needs twice as much of everything, including hospitals, schools, resources, food and medicines to care for its people. It is easy to see that this is very difficult to achieve for the more rapidly growing countries.

This passage chiefly discusses

A.the growth of world population.

B.one type of the exponential rate

C.the population problem of more rapidly growing countries.

D.the possible ways of dealing with the rapid population growth

According to the passage what helps to explain why the population problem has come on “all of a sudden”？A.The penny that doubles itself every day for one month

B.The time span of at 1east two million years in human history.

C.An illustration of the exponent growth rate given by the author.

D.The large amount of money you would luckily make after the fourth week

Which of the following statements is NOT true？A.World population is increasing at a rate of 150 per minute

B.Lower death rate also contributes to world population growth

C.The population of Columbia has been doubling every year for 21 years.

D.The United States is usually doubling its population on about every 87 years.

It took ______ for the world to increase its population from 1 billion to 4 billion.A.100 years

B.175 years

C.1975 years

D.over two million years

When a population doubles, the country involved needs twice as much of everything including __.A.hospitals and medicines

B.schools and students

C.food and manpower resources

D.all of the above

请帮忙给出每个问题的正确答案和分析，谢谢！

or criticize others as they are similar to or different from it. And unfortunately, our picture of the people and the way of life of other countries is often a distorted one. Here is a great argument in favor of traveling abroad and learning foreign languages. It is only by traveling or living in the country and getting to know its inhabitants and their language that one can find out what the country and its people are like. And how different the knowledge one gains this way frequently turns out to be from the second-hand information gathered from other sources! How often we find that the foreigners whom we thought to be such different people from ourselves are not very different after all! Differences between peoples do, of course, exist and, one hopes, will always continue to exist. The world will be a dull place indeed when all the different nationalities behave exactly alike, and some people might say that we are rapidly approaching this state of affairs. With almost the whole of Western Europe belonging to the European Economic Community (EEC) and the increasing standardization this brings about, plus the much greater rapidity and ease of travel, there might be some truth in this ― at least as far as Europe is concerned. However true this may be, at least the greater ease of travel today has revealed to more people than ever before that the Englishman or Frenchman or German is not some different animal from themselves.

1.The passage is mostly concerned with the issue of ______.

A、advantages of the EEC

B、attitudes towards other countries

C、learning foreign languages

D、differences among peoples

2.According to the author, ______.

A、our knowledge of other cultures are always wrong

B、reading books about other countries is the safest way of understanding their peoples

C、there are more similarities than differences among different peoples

D、there are more differences than similarities among different peoples

3.Some people think that European peoples are identifying themselves with each other because of the following EXCEPT ______.

A、the establishment of the EEC

B、the greater rapidity and ease of travel

C、the increasing standardization

D、the rapid industrialization

4.According to the author, ______.

A、the author is going to introduce a new idea

B、the author is about to avoid any conclusion

C、the author is about to give up his own point of view

D、the author will stick to his own point of view

5.The passage seems to attach importance to ______.

A、the greater ease of travel nowadays than before

B、the uncontrollable tendency to identification

C、the similarities in terms of way of life between different cultures

D、the differences between European peoples and other nations

Every country, whilepursuing itsowndevelopment, shouldactively （) the common developm

Every country, whilepursuing itsowndevelopment, shouldactively () the common development of all countries.

Every man in this country has the right to live where he wants to _____ the color of his skin.

A) with the exception of B) in the light of

C) by virtue of D) regardless of

A.live

B.lives

C.living

D.are living

s and advantages.

A、historian

B、history

C、historical

D、heroine