标题: 求助OG 2016 VERBAL SC 38 [打印本页] 作者: 迷失二次元 时间: 2015-8-14 15:42 标题: 求助OG 2016 VERBAL SC 38 Around 1900, fishermen in the Chesapeake Bay area landed more than seventeen
million pounds of shad in a single year, but by 1920, overfishing and the
proliferation of milldams and culverts that have blocked shad migrations up their
spawning streams had reduced landings to less than four million pounds.
(A) that have blocked shad migrations up their spawning streams had
reduced landings to less
(B) that blocked shad from migrating up their spawning streams had
reduced landings to less
(C) that blocked shad from migrating up their spawning streams reduced
landings to a lower amount
(D) having blocked shad from migrating up their spawning streams reduced
landings to less
(E) having blocked shad migrations up their spawning streams had reduced
landings to an amount lower
答案：B 以下为OG中给出的解释
A The present-perfect tense of have blocked inappropriately describes an
event that caused something to happen before 1920. In addition, migrations
up their spawning streams is incorrect.
B Correct. The comparison of poundage is efficiently explained, and the
sequence of tenses makes sense. Despite a possible superficial appearance
of a comparison between countable things (pounds), less is more
appropriate than fewer for the comparison. The fishermen landed different
amounts of fish; they did not land the numbers of pounds in terms of which
those amounts are measured.
C The comparative expression to a lower amount is unnecessarily wordy.
The past-perfect form had reduced would make the temporal relationships
somewhat clearer than does the past tense reduced.
D The present-perfect participial phrase, having blocked . . . streams, should
be set off in commas; as it stands, it does not make sense. The past-perfect
form had reduced would make the temporal relationships somewhat clearer
than does the past tense reduced.
E The present-perfect participial phrase must be set off with commas; the
pronoun their, which is also in (A), nonsensically refers to migrations, and
the comparative expression to an amount lower is unnecessarily wordy.
我的疑问是为什么B中会用had reduced？ 按照顺序的话不是应该先block再reduce吗？
这样的话 不应是是block用过去完成时吗？？ 这道题一点头绪都没有。。求大侠解答 作者: zbyloveinter 时间: 2015-8-15 04:33
blocked shad from migrating up their spawning streams是修饰语，
因为有“by 1920”，所以reduced用完成时作者: 迷失二次元 时间: 2015-8-15 08:51
看懂啦 谢谢~！！作者: sylviah 时间: 2016-9-26 15:38
另外og说 A选项的migrations up their spawning streams 这种表达是错的，为什么？我的理解是，up their spawning streams修饰migrations，这样不可以？ 作者: Jez 时间: 2017-7-30 00:55
还有个问题为什么是less than 3 million pounds， 胖子不可数吗？
同理在og verbal 2017 265题中
Less than 400 Sumatran rhinos survive on the Malay peninsula and on the islands of Sumatra and Borneo, and they occupy a small fraction of the species' former range.
A. Less than 400 Sumatran rhinos survive on the Malay peninsula and on the islands of Sumatra and Borneo, and they occupy a small fraction of the species' former range.
B. Less than 400 Sumatran rhinos, surviving on the Malay peninsula and on the islands of Sumatra and Borneo, occupy a small fraction of the species' former range.
C. Occupying a small fraction of the species' former range, the Malay peninsula and the islands of Sumatra and Borneo are where fewer than 400 Sumatran rhinos survive.
D. Occupying a small fraction of the species' former range, fewer than 400 Sumatran rhinos survive on the Malay peninsula and on the islands of Sumatra and Borneo.
E. Surviving on the Malay peninsula and on the islands of Sumatra and Borneo, less than 400 Sumatran rhinos occupy a small fraction of the species' former range.