soaps six nights a week，while three others show at least one hour a night.Most soaps are based on wealthy characters living the high life in big cities.

"Although they have never really tried to work in a message towards the problems of reproduction (生育)，they describe middle and upper class values-not many children，different attitudes towards sex，women working，" says Martine."They sent this message to all parts of Brazil and made people conscious of other patterns of family life and other values，which were put into a very attractive package."

　　　Meanwhile，the installment plans tried to encourage the poor to become consumers."This led to an enormous change in consumption patterns and consumption was incompatible with unlimited reproduction，"says Martine.

39．According to the passage，Brazil has cut back its population growth________.

A．by educating its citizens

B．by careful family panning

C．by developing TV programmers

D．by chance

40．According to the passage，many Third World countries________.

A．haven't attached much importance to birth control

B．would soon join Brazil in controlling their birth rate

C．haven't yet found an effective measure to control their population

D．neglected the role of TV plays in family planning

41．The phrase "puts it down to" (Line 1，Para.3) is closest in meaning to "________"．

A．attributes it to B．sums it up as

C．finds it a reason for D．compares it to

42．Soap operas have helped in lowering Brazil's birth rate because________.

A．they keep people sitting long hours watching TV

B．they have gradually changed people's way of life

C．people are drawn to their attractive package

D．they popularize birth control measures