再麻烦一下

michelle84

21.   A low-pressure weather system is approaching Plainville; rainfall results from about 70 percent of such systems in the Plainville area. Moreover, the current season, spring, is the time of year in which thundershowers, which sometimes result from low-pressure systems, are most likely to occur in Plainville.

Knowing which one of the following, in addition to the information above, would be most useful for determining the probability that Plainville will have a thundershower soon?

(A) the percentage of thundershowers in Plainville that occur in the spring

(B) the percentage of spring rainfalls in Plainville that are thundershowers

(C) the percentage of thundershowers in Plainville that result from low-pressure systems

(D) whether low-pressure systems in other areas are associated with rainfall（B）

(E) whether Plainville has more or fewer thundershowers each spring than do nearby towns

看了以前的帖子,还是不太清楚!!

24.   An unbiased observer of everyday encounters in Western societies would surely not find many instances of unkindness by people under 65 toward people over 65. There are undoubtedly incidents of unkindness based on age, and these warrant reproof. However, the very fact that such reproof occurs and is generally accepted implies that our Western societies basically respect the elderly. The same conclusion can be drawn from a recent survey finding: 71 percent of the under 65 population agreed with the statement that “people over 65 receive too little respect from society”, while only 44 percent of the over-65 population, the target of the alleged irreverence agreed with it.

The author concludes that Western societies basically respect the elderly partly because

(A) people under 65 are just as kind to people over 65 as they are to people of their own age group

(B) survey data suggest that fewer people over 65 than under 65 get too little respect

(C) disrespect for the elderly does not go so far as to result in actual harm

(D) survey data suggest that people over 65 are more aware of incidents involving disrespect to the elderly than are people under 65（E）

(E) incidents of unkindness to the elderly are neither common nor generally accepted in Western societies

这道题是否应从HOWEVER处入手?今天把前几次想问的都挂出来,麻烦大家!!!

番茄炒蛋

第一题，原文光说了下雨的概率

问题是下雷雨的概率

所以当然是要由b来补充一下下雨中雷雨的概率咯

可以说是搭桥吧

第二题，关键是however后面的数据引用

也就是说，65一下的人呢，认为敬老不够，而65以上的呢，认为敬老工作不错

这些也正是e中所说的咚咚