Mavisdu1017 wrote:
Hello expert,
I was stuck between B and E. Finally I choose correctly cuz for me E is more certain than B, but I don’t know where B is wrong. Plz help?
The passage says “alternative theory which is proven more useful will take place the old one and come into the body of common sense”, so——>B: the newer one (alternative one) is more useful than the older one (the original one which is taken place). Where is it wrong? Thanks in advance. I
Here's the exact wording of (B):
Quote:
(B) Of the useful theories within the body of common sense, the older ones are generally less useful than the newer ones.
(B) talks about ALL of the useful theories that make up "common sense." Can we say with absolute certainty that, across all of these theories, the older ones are generally less useful than the newer ones?
The passage tells us that older theories are replaced by newer ones. But it really doesn't give us a sense of
what proportion of older theories are replaced by newer ones -- have ALL of the old theories replaced, or only SOME of them? We really can't say. So, it's quite possible that there are many older theories that are highly useful, and only SOME older theories are replaced by newer, more useful theories.
Similarly, the passage doesn't give us a way to compare theories that make up different parts of "common sense." Perhaps one area of common sense (for example, land navigation), has a set of extremely useful tools that have been around for a long time. Separately, another area (for example, healthy living), could be made up of newly evolved theories that haven't reached the same level of "usefulness" as land navigation.
The passage allows us to compare new theories with the old theories that they replaced -- for example, new healthy living theories are more useful than old healthy living theories. However, we really can't compare new healthy living theories to old land navigation theories. So, we can't say that across all parts of common sense, the newer theories are more useful than the old theories.
Eliminate (B).
I hope that helps!