【阅读练****br/> The typical preindustrial family not only had a good many children, but numerous other dependents as wellgrandparents, uncles, aunts and cousions. Such "extended" families were suited for survival in slow paced __1__ societies. But such families are hard to __2__. They are demanded masses of workers ready and able to move off the land in pursuit of jobs, and to move again whenever necessary. Thus the extended family __3__ shed its excess weight and the socalled "nuclear" family emergeda strippeddown, portable family unit __4__ only of parents and a small set of children. This new style family, far more __5__ than the traditional extended family, became the standard model in all the industrial counties. Superindustrialism, however, the next stage of ecotechnological development, __6__ even higher mobility. Thus we may expect many among the people of the future to carry the streamlinling process, a stePfurther by remaining children, cutting the family down to its more __7__ components, aman and a woman. Two people, perhaps with matched careers, will prove more efficient at navigating through education and social status, through job changes and geographic relocations, than teh ordinarily childcluttered __8__ may be the postponement of children, rather than childlessness. Men and women today are often torn