prep2~~198~~求解

bijinjing

198.    (31399-!-item-!-188;#058&006299)    (GWD-18-Q31)

Between 1990 and 2000 the global economy grew more than it did during the 10,000 years from the beginning of agriculture to 1950.
A. Between 1990 and 2000 the global economy grew more than it did during the 10,000 years from the beginning of agriculture
B. Between 1990 and 2000 the growth of the global economy was more than that during 10,000 years, from when agriculture began
C. The growth of the global economy between 1990 and 2000 exceeds that which had been for 10,000 years from the beginning of agriculture
D. The growth of the global economy between 1990 and 2000 exceeds what it has been for 10,000 years, from when agriculture began
E. The growth of the global economy between 1990 and 2000 exceeded what it did for the 10,000 years from the beginning of agriculture

答案是a，问b哪里错了，a中的it对吗？不是应该是that吗

bijinjing

今天又做到了，好心人回答一下吗

fansail

From Manhattangmat:

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)

fmsunny

我来告诉你，希望不晚
from.....to ....要求对称 答案A，都是名词，the beginning.........1950(表时间）
但是 答案B，你再看看，from后跟的是时间从句when..began...但是 to 后面还是 1950

tuscan

that指代growth of economy 不给力，不如A里面用it did来的清楚

fudanwyh

my understanding...
grow more than...no problem;
but growth is more than...???
should it be growth is bigger than...?