再问XDF17/63第7、8两题，怎么也看不明白！谢谢

Passage 17 (17/63)

Prior to 1975, union efforts to organize public-sector clerical workers, most of whom are women, were somewhat limited. The factors favoring unionization drives seem to have been either the presence of large numbers of workers, as in New York City, to make it worth the effort, or the concentration of small numbers in one or two locations, such as a hospital, to make it relatively easy. Receptivity to unionization on the workers’ part was also a consideration, but when there were large numbers involved or the clerical workers were the only unorganized group in a jurisdiction, the multi-occupational unions would often try to organize them regardless of the workers’ initial receptivity. The strategic reasoning was based, first, on the concern that politicians and administrators might play off (to set in opposition for one's own gain从中渔利；在…之间挑拨离间) unionized against non-unionized workers, and, second, on the conviction that a fully unionized public work force meant power, both at the bargaining table and in the legislature. In localities where clerical workers were few in number, were scattered in several workplaces, and expressed no interest in being organized, unions more often than not ignored them in the pre-1975 period.

But since the mid-1970’s, a different strategy has emerged. In 1977, 34 percent of government clerical workers were represented by a labor organization, compared with 46 percent of government professionals, 44 percent of government blue-collar workers, and 41 percent of government service workers. Since then, however, the biggest increases in public-sector unionization have been among clerical workers. Between 1977 and 1980, the number of unionized government workers in blue-collar and service occupations increased only about 1.5 percent, while in the white-collar occupations the increase was 20 percent and among clerical workers in particular, the increase was 22 percent.

What accounts for this upsurge in unionization among clerical workers? First, more women have entered the work force in the past few years, and more of them plan to remain working until retirement age. Consequently, they are probably more concerned than their predecessors were about job security and economic benefits. Also, the women’s movement has succeeded in legitimizing the economic and political activism of women on their own behalf, thereby producing a more positive attitude toward unions. The absence of any comparable increase in unionization among private-sector clerical workers, however, identifies the primary catalyst—the structural change in the multi-occupational public-sector unions themselves. Over the past twenty years, the occupational distribution in these unions has been steadily shifting from predominantly blue-collar to predominantly white-collar. Because there are far more women in white-collar jobs, an increase in the proportion of female members has accompanied the occupational shift and has altered union policy-making in favor of organizing women and addressing women’s issues.

7.     The author implies that if the increase in the number of women in the work force and the impact of the women’s movement were the main causes of the rise in unionization of public-sector clerical workers, then

(A) more women would hold administrative positions in unions

(B) more women who hold political offices would have positive attitudes toward labor unions

(C) there would be an equivalent rise in unionization of private-sector clerical workers

(D) unions would have shown more interest than they have in organizing women（C）

(E) the increase in the number of unionized public-sector clerical workers would have been greater than it has been

8.     The author suggests that it would be disadvantageous to a union if

(A) many workers in the locality were not unionized

(B) the union contributed to political campaigns

(C) the union included only public-sector workers

(D) the union included workers from several jurisdictions（A）

(E) the union included members from only a few occupations

这两道题在我反复精读原文后还是没法回原文定位，找不着依据，更不知道何从下手，请大家帮我分析分析吧！谢谢了

我觉得8题应该定位在在斜体部分，因为这里讲的的advantage, 一般在题目里面看见disadvantage就应该去找文章中的advantage，然后取非，ETS偏好取非。