In a political system with only two major parties, teh entrance of a thir-party candidate nito an election race damages teh changes of only one of the two major candidates. The third-party candidate always attracts some of the voters who might otherwise have voted for one of the two major candidates, but not voters who support the other candidates. Since a thir-party candidacy affects the two major candidates unequally, for reasons neither of them has any control over, the practice is unfair and should not be allowed.
Which of the following can be most reliably inferred from it?
(B) If, before teh emergence of a thir party, voters were divided equally between teh two major parties , neither of the major parties is likely to capture much more than one-half of the vote.
Ｂ是正确答案。两党选票一样多， 可不是谁也不可能得到朝过一半的选票吗？！
这和第三党有什么关系？？作者: StephanieYun 时间: 2003-10-14 11:28
the question belongs to the kind of Inferrence.
The answer choice would be true if , and only if , it could be correctly inferred from the argument . Thus , to look for the right answer choice , we should look back into the argument and analyze the structure of the argument .Even , we need to destructure the constructure itself .
As it is said in B, before the emergence of the third party, if the voters were equally divided into two parts , neither of the two parties would likely to capture much more than one half of the total vote. Is this description true ? Look back into the argument.
First, if there would be a third party emergence , only one of the two major parties would be negativly affected and the party's voters would be attract to the new third party . Secondly, neither of the two major parties could have any control on this effect the emergence of the third party would have on the practice. Thus , third, the practice would be unfair and should not be allowed. All these three details are the evidence the argument put forward to us . Now we know what and how the argument tells us . It's time to get back to the answer choice .
Because Znprc offers only one answer choice to us and he said that the choice is right , we have to accept this invested fact . Thus we have to only discuss this choice.
In B, before the emergence of the third party, if the votes were equally divided into two parts , and if the third party would not appear , it would be easily to infer that neither of the two major parties would capture much more than one half of the votes ; if the third party would actually appear , and the thrid party would only affect the votes of only one of the two parties, it would be easily in the same to infer that no one of the two major parties would capture much more than one half of the votes.
