题目内容：

Each year millions of babies are born too soon and too small. Premature or preterm births mean births at less than thirty-seven weeks.

Prematurity is the leading cause of death in newborn babies. More than one-fourth of the four million newborns who die each year around the world were born too early.

Preterm babies that survive can suffer a lifetime of serious health conditions. The examples include cerebral palsy, blindness, hearing problems and learning disabilities. Families and communities face emotional, physical and financial costs.

Christopher Howson is the vice president for global programs at the March of Dimes. His group and the World Health Organization recently published a report called “The Global and Regional Toll of Preterm Birth.”

Christopher Howson: “Frankly the problem of preterm birth is under-recognized and undervalued. People fail to recognize how serious the problem is. I mean, this report shows that thirteen million babies are born every year preterm, and that over a million of those babies die as a result of being born too early.”

And these are just estimates; the true numbers could be even higher. More than eighty-five percent of preterm births happen in Africa and Asia. Africa has the highest rate, with about four million cases each year.

Christopher Howson says many of the causes of preterm births are related to poverty and weak health-care systems.

Christopher Howson: “For example, the poor overall health and nutritional status of women. A high burden of infectious diseases. A lack of family planning – allowing a woman to decide when to start and end having children. And also the lack of good prenatal(产前) care programs that might identify problems early on in pregnancy.”

Preterm births are a problem not just in the developing world. The combined rate in the United States and Canada is the second highest in the world. Preterm birth rates in the United States have increased thirty-six percent in the last twenty-five years.

This has been largely the result of two reasons. One is an increase in pregnancies among women over age thirty-five. The other is an increase in the use of reproductive therapies（生殖治疗）.

1. This passage is mainly about ______.

A. the causes of people’s bad health throughout the world

B. how to improve people’s health throughout the world

C. premature or preterm births throughout the world

D. Christopher Howson, vice president for global programs at the March of Dimes

2. All of the following are causes of preterm births EXCEPT______.

A. too many deaths of newborn babies

B. poverty

C. Lack of family planning

D. the lack of good prenatal care programs

3.Which of the following is a TRUE statement according to the passage?

A. Preterm birth rates in developing countries are dropping and they are increasing in some developed countries like the US and Canada.

B. The increase in pregnancies among women over age thirty-five and the increase in the use of reproductive therapies result in the increase of preterm birth rates.

C. Fortunately, many people have already realized the seriousness of the problem of preterm births.

D. Preterm births must be a problem for only poor areas because of poverty.

4.Where can we probably read this article?

A. International news reports

B. History and political papers

C. Science magazines

D. World trade guides