Question

When Central American doctors read the reports from Africa that kwashiorkor was caused by not having enough protein (蛋白质），they began to search for this hidden killer of children in their own area. A team of health workers learned that two-thirds of all children between the ages of one and five really died of kwashiorkor in a nine-month study.

One of the saddest discoveries made was that parents took away any food containing protein from a sick child, and instead fed him starchy (淀粉的)soups made of rice and sugar. As a result of this treatment, the child with kwashiorkor usually died without even reaching the hospital. Those children who escaped death were often not normal. The development of the mind might be slowed. Body growth was stopped.

The studies showed that children in Central America grow as rapidly as children in the United States until the second part of their first year, as long as they take mother's milk. During their school years, they gain in weight and bone development at a rate comparable to that of children in the United States. But by this time, they are several years behind in size, since they did not grow well during the years between the time they were babies and the time they went to school.

Studies were made to determine what foods children ate during the period of delayed growth. It was found that the food of poorer families of the cities, and of those families who lived in the country, consisted mainly of corn and beans, which were of no needed food value. It was found also that children, while taking mother's milk, were seldom given any other foods. Even after they stopped taking mother's milk, corn and beans were what they ate and these either slowed their growth or killed them.

68.What does the underlined word “their’ ，in the first paragraph refer to_____.

A. Africans'                                              B. Children's

C. Central Americans'                                D. Central American doctors'

69.    Generally, children in Central America do not grow as fast as those in the United States_____

A. from birth                                             B. during the first year

C. before school years                               D. during school years

70.    Which of the following statements is TRUE according to the passage?

A. The work of doctors in poor countries was often tough.

B. Taking mother's milk slowed those children's growth.

C. Children with kwashiorkor usually died without proper treatment.

D. Children who did not die of kwashiorkor were usually normal in mind.

71.    What's the cause of kwashiorkor according to the study?

A. Starchy soups.                                      B. Imbalanced diet.

C. Corn and beans.                                    D. Too much protein.

Answer 1

DCCB