The typical pre-industrial family not only had a good many children, but numerous other dependents as well—grandparents, 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 immobile. Industrialism 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 so-called "nuclear" family emerged—a stripped-down, 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.

Super-industrialism, however, the next stage of eco-technological development, __6__ even higher mobility. Thus we may expect many among the people of the future to carry the streamlinling process, a step further 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 tehordinarily child-cluttered family. A __8__ may be the postponement of children, rather than childlessness. Men and women today are often torn in __9__ between a commitment to career and a commitment to children. In the future, many __10__ will sidestep this problem by deferring the entire task of raising children until after retirement.

[A] transplant

[B] solution如何查四级成绩

[C] gradually

[D] transport

[E] elemental

[F] conflict

[G] continually

[H] mobile

[I] couples

[J] agricultural

[K] including

[L] compromise

[M] requires

[N] primary

[O] consisting