扫描二维码，直接登录
题库 / Prep2008E2-SC-198
Between 1990 and 2000 the global economy grew more than it did during the 10,000 years from the beginning of agriculture to 1950.
Between 1990 and 2000 the global economy grew more than it did during the 10,000 years from the beginning of agriculture
Between 1990 and 2000 the growth of the global economy was more than that during 10,000 years, from when agriculture began
The growth of the global economy between 1990 and 2000 exceeds that which had been for 10,000 years from the beginning of agriculture
The growth of the global economy between 1990 and 2000 exceeds what it has been for 10,000 years, from when agriculture began
The growth of the global economy between 1990 and 2000 exceeded what it did for the 10,000 years from the beginning of agriculture
Here is Ron's explanation of why B, C, D and E are wrong:
"(B) you can't use 'that' in this sort of construction, because constructions using 'that of' (or other preposition after 'that') must have EXACTLY parallel structures. in other words, if the second half says 'that during 10,000 years', then the preceding half must say 'the growth of ___ during something else' (or some other time preposition, such as before or after, in place of during).
there's nothing ungrammatical about 'from when', because the clause starting with 'when' is a perfectly legitimate noun clause (i.e., 'when agriculture began' serves as a noun. however:
- it's possible that the gmat does consider such constructions wrong; the only way to tell is to see if they say so in any official answer choices
- regardless of where the gmat stands on the issue, 'the beginning of agriculture' is unquestionably better than 'when agriculture began' (i.e., an actual noun is almost always superior to a circuitous noun clause, when possible)"
"(C) First, you've got a "which" modifier that isn't preceded by a comma, so that's an automatic failure. (note that you can use preposition + which without a comma -- e.g., the box in which you placed your valuables -- but you cannot do so with just plain "which".)
more importantly, "had been" is not parallel to anything in the other half of the sentence; in order to use a parallel structure that contains a form of "to be", you must have another form of "to be" in the other half of the parallel structure.
check out more details here:
http://www.beatthegmat.com/soar-t62473-15.html#280069"
"(D) you can't use the present perfect if the time interval is over. If the trend continues into the present day, then the present perfect is appropriate.
Even if that were fixed, choice D still suffers from fatal wordiness / lack of concision, especially in comparison to the correct choice."
"(E) The growth of the global economy since 1990 exceeds what it did for the 10,000 years from the beginning of agriculture.
'what it did' doesn't make any sense:
* the growth didn't 'do' anything
* there's no other verb to which 'did' could logically be parallel to complete the comparison"
登录 或 注册 后可以参加讨论