请教大家一道LR

由于新东方的教材中题目的顺序被打乱（防止被控盗版），第十八套题着实找不到Kaplan的解释，又捉摸不透，忘各位指点迷津。

1、A linquist recently argued that all human languages must have a common origin because some concepts are universal; that is they appear in all languages. For example, all languages are capable of describing lightness and darkness Which one of the following, if true would most seriously weaken the arguement?

答案是：All speakers, regardless of their languages are confronted with similar stimuli like lightness and darkness.

但是我觉得这应该算加强吧，不知道怎么理解。另外，如果哪位牛人知道这是哪年哪月的题，麻烦告诉我一声，因为还有其他不确定的题目，谢谢大家！！

Super thx~Icewarm!

Here is another case if you may help.

Also in that section:24 Odysseus answered well when the priests showed him a picture of those who had honored the gods and then escaped shipwreck, and asked him whether he did not now acknowledge the power of the gods-"yes", he asked, but where are those pictured who were drowned after their prayers? And such is the way of all superstitions; wherein humans, having a delight in such vanities, mark the events where they are fulfilled, but where they fail, though this happens much oftener neglect and pass them by.

The question asked for a choice contains the error of reasoning described by the author, and the correct answer should be: I have disvovered that Friday the 13th really is a day of misfortune. Just this past Friday the 13th, I locked myself out of the house.

Unfortunetely, i cannot figure it out. Please any of you help me, and million thx, you guys.

It's so nice of you!

But forgive me to furthur the question above, according what you said, why not the answer E, which says "I cannot trust my lucky shirt any longer wore it to the game today and our team lost"?

BTW, are you preparing the test for 12/2?

Thank you very much. I think this kind of questions is really worth my paying special attention to.