GMAT考试：Testprep数学精解2_GMAT数学

GMAT考试：Testprep数学精解2

　　 Just as an actor may become stressed before a performance， so too may dwelling on the negative cause depression.

　　The argument compares the tautness in a fishing line to the stress of city life; it then concludes that the mind can snap just as the fishing line can.

　　So we are looking for an answer-choice that compares two things and draws a　conclusion based on their similarity. Notice that we are looking for an argument that uses similar reasoning， but not necessarily similar concepts. In fact， an answer-choice that mentions either tautness or stress will probably　be a same-language trap.

　　Choice uses the same-language trapnotice too taut. The analogy between a taut bow and self-gratification is weak， if existent. Choice offers　a good analogy but no conclusion. Choice offers both a good analogy and　a conclusion; however， the conclusion， leads to lethargy， understates the　scope of what the analogy implies. Choice offers a strong analogy and a　conclusion with the same scope found in the original： the engine blows， th　e person dies the line snaps， the mind snaps. This is probably the best　answer， but still we should check every choice. The last choice，， uses l　anguage from the original， stressful， to make its weak analogy more tempt　

　　Causal Reasoning

　　Of the three types of inductive reasoning we will discuss， causal reasoning　is both the weakest and the most prone to fallacy. Nevertheless， it is a useful and common method of thought.