
Today we are going to talk about the population in the United States. Accoding to the most recent goverment census,the population is 281,421,960 people. Now this represents an increase of about 33 million people since 1990 census. A population of 281 million makes the United States the third most populous country in the whole world. As you probably know the People’s Republic of China is the most populous country in the world. But do you know which is the second most populous?Well,if your thought India,you are right. The fourth,fifth,and sixth most populous countries are Indonesia,Brazil and Pakistan. Now, let's get back to the United States. Let's look at the totally US population figure of 281 million in three,that is three different ways.:the first way is by race and origin,the second is by geographical distribution or by where people live,and the third way is by the age and sex of the population.
First of all,let's take a look of the population by race and origin. The latest US census reports that 75.1% of the population is white,while 12.3% is black,3% are Asian origin and 1% is native American,2.4% of the population is the mixture of two or more races,and 5.5% report themselves as of some other race. Let's make sure your figures are right,OK? White:75.1%,black:12.3%,Asian:3%,native American:1%, a mixture of two or more races:2.4%,and other some other race:5.5%. Hispanics whose origins lie in Spanish speaking countries comprise whites,blacks and native Americans. So they are already included in the above figures. It's important to note the Hispanic make up 12.5% of the present US population. However,finally the census tells us there’s 31 million people in the United States who are born in other country,other 31 million for born. The lagest part 27.6% are from Mexico,the next lagest group are from Filipine,number 4.3%.
Another way of looking at the population by geograpfique distribution. Do you have any idea which states are the five most populous in the United States?Well,I’ll help you out there. The five most populous states with population figures are California with almost 34 million,New York with 21 million,Texas with 19 million and Florida with 16 million and Illinois with 12.5 million people. Did you get all those figures down?Well, if not,I’m going to give you a chance later to check your figures.
Well then,let's move on. All told over half or some 58% of the population live in the south and in the west of the United States. This figure 58% is surprising to many people. It's surprising because the east is more densely populated. Nevertheless,there are more people altogether in the south and west. To understand the seeming contradiction,one need only consider the relatively larger size of many southern and western states. So although there are more people,they are distributed over a larger area. To finish up this section on geograpfical distribution,consider that more than 3 quarters of people live in much metropolitanr areas like Los Angeles,New York, Chicago and Houston. And that means that only 20% or 2 out of ten people live in rural areas. And interesting side known is some 3,800,000 US citizens live abroad,that is in four countries.
Before we finish today,I want to discuss the distribution of US population in terms of age and sex. Just for interests,would you say there are more men or more women in the United States?Well,accoding to the 2000 census,there are more women,in fact,there are more than 5 million more women than men in the US population. If we consider that more males than females are born each year,how can this diffrence be explained?Well,for a variety of complicated reasons that we can't go into here. There is a progressively higher death rate for males as they get older. This is seen in 2003 life expectancy figures. The life expectancy for women is 80.4 years,while as for men,it's only 74.5 years. I don’t know how these life expectancy figures compared of those in your countries,but statisticlly women generally live longer than men worldwide.
Now,to finish up,let's look at the average age of the whole population. Overall the average age of the population is increasing. From 33.1 year in 1990 to 35.3 year in 2000, the average age has been slowly but steadily increasing over the past several decades,and this trend towards a higher average age can be explained by a decreasing birth rate and increasing life expectancy for the population as a whole. Well, I'd like to investigate these two subjects further,but I see our time is up, so we'll have to call it quits for today. You may want to pursue the topic of the aging US population further,so there are some suggestions that on the end of the lesson to help you do so. Thank you.
