OG11 Verbal #34

salesman2010 · 发表于 2010-2-23 20:23:15

34. Lacking information about energy use，people tend to overestimate the amount of energy used by equipment, such as lights, that are visible and must be turned on and off and underestimate thatused by unobtrusive equipment，such as water heaters

(A) equipment，such as lights，that are visible and must be turned on and off and underestimate that
(B) equipment，such as lights，that are visible and must be turned on and off and underestimate it when
(C) equipment，such as lights，that is visible and must be turned on and off and underestimate it when
(D) visible equipment，such as lights，that must be turned on and off and underestimate that
(E) visible equipment，such as lights，that must be turned on and off and underestimate it when

Parallelism + Agreement

This sentence has errors in parallelism and in subject verb agreement．The clause that are visible is not parallel to the adjective unobtrusive．Two kinds of equipment are being contrasted，visible and unobtrusive，so to be parallel(and concise)each adjective should appear directly before the noun it modifies，equipment．The noun equipment is singular and requires a singular verb．
A That are visible is not parallel to unobtrusive；error in subject-verb agreement between equipment and are．
B Such as lights is not parallel to unobtrusive；the singular noun equipment requires a singular verb；it when used by is not parallel to the amount…used by．
C Such as lights is not parallel to unobtrusive；it when used by is not parallel to the amount．．．used by．
D Correct．In this sentence，the two adjectives visible and unobtrusive are parallel，and placing visible before equipment eliminates the verb and solves the agreement problem．The construction overestimate the amount energy used by．and．．．uncle estimate that used by，provides parallel structure．
E Such as lights is not parallel to unobtrusive；it when used by is not parallel to the amount．．．used by．

The correct answer is D．

我的问题是：D 的第二个THAT 指代什么？

liverpool123 · 发表于 2010-2-23 21:35:59

the amount of energy

OG11 Verbal #34

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