[求助]GWD17-32

Q32:

Navigators have known for thousands of years that the ocean has variable currents, but it is only in the last half century that a reasonably clear picture has emerged of the patterns and causes of ocean currents.

顶一下

请nn讲解下吧

我也觉得，gwd的选项，都不能2-3法。。要每个都看才保险。。

Q32:

Navigators have known for thousands of years that the ocean has variable currents, but it is only in the last half century that a reasonably clear picture has emerged of the patterns and causes of ocean currents.

>>

1. a reasonably clear picture has emerged of the patterns and causes of ocean currents of the patterns本应修饰picture,这里放在emerged后面是gmat特别喜欢的用法,就是因为of后面的内容过长,如果放在picture后面显得头重脚轻,所以这一点是没有错的.但是a的时态有问题.从句意来看navigator几千年来已经知道海有变化的currents是用完成时,而clear picuture发生在last half century 就不能也用完成时了.这点在og92中有明确的考点.
   
2. a reasonably clear picture of the patterns of ocean currents and their causes have emerged 完成时错,且have与a picture主谓不一致
   
3. a reasonably clear picture emerged of ocean currents, their patterns and the causes of them 我本来选c但现在觉得,如果navigator had...过去完成时,这里emerge用过去时就完美了,现在看也不时那么合适
   
4. there have emerged a reasonably clear picture of the patterns of ocean currents and what caused them    there be时gmat最讨厌的选项,后面what caused them也怪怪的与前面又不平行,

E.there had emerged a reasonably clear picture of the patterns of ocean currents and their causes   there be的问题

og92

92. Never before had taxpayers confronted so many

changes at once as they had in the Tax Reform Act of 1986.

(A)  so many changes at once as they had in

(B)  at once as many changes as

(C)  at once as many changes that there were with

(D)  as many changes at once as they confronted in

(E)   so many changes at once that confronted them in

Choice D is the best answer, stating grammatically and clearly that, with the 1986 Tax Reform Act, taxpayers confronted more simultaneous changes than ever before. In choice A, the past perfect had [confronted] illogically places the 1986 events in the same time frame as Never before had...; a simple past tense is needed to present the 1986 events as following the earlier ones. Choices B and C awkwardly place at once between confronted and its direct object, changes. Furthermore, B illogically states that the Act itself was many changes, when the point is rather that it presented many changes, and as many ... that is an unidiomatic comparison. Choice E, too, presents an unidiomatic comparison with so many... that.

请牛牛指点

牛牛快出现吧

这套新题没有成型的讨论结果真令人着急哟

平行and There be 繁杂

一道没答案的题目

TT17

Q32:

Navigators have known for thousands of years that the ocean has variable currents, but it is only in the last half century that a reasonably clear picture has emerged of the patterns and causes of ocean currents.

1. a reasonably clear picture has emerged of the patterns and causes of ocean currents
2. a reasonably clear picture of the patterns of ocean currents and their causes have emerged
3. a reasonably clear picture emerged of ocean currents, their patterns and the causes of them
4. there have emerged a reasonably clear picture of the patterns of ocean currents and what caused them
5. there had emerged a reasonably clear picture of the patterns of ocean currents and their causes

我是覺得the patterns (of)  and cause of ocean currents 是一個平行結構用來修飾pictures.

至於前面提到為什麼of the  patterns (of) and cause of ocean currents 沒有直接放在其修飾對象(clear picture)後面，根據修飾原則確實應該要放在被修飾對象的後面，但是在這裡of引導的介係詞片語只能修飾pictures,所以沒有歧意.

請大家指教.(本人修辭實力真的很差，第一次鼓起勇氣回帖．有錯誤請告知，謝謝）

Q32:

Navigators have known for thousands of years that the ocean has variable currents, but it is only in the last half century that a reasonably clear picture has emerged of the patterns and causes of ocean currents.

B a reasonably clear picture of the patterns of ocean currents and their causes have emerged 完成时错,且have与a picture主谓不一致

C a reasonably clear picture emerged of ocean currents, their patterns and the causes of them 我本来选c但现在觉得,如果navigator had...过去完成时,这里emerge用过去时就完美了,现在看也不时那么合适

D there have emerged a reasonably clear picture of the patterns of ocean currents and what caused them    there be时gmat最讨厌的选项,后面what caused them也怪怪的与前面又不平行,

E.there had emerged a reasonably clear picture of the patterns of ocean currents and their causes   there be的问题

og92

92. Never before had taxpayers confronted so many

changes at once as they had in the Tax Reform Act of 1986.

(A)  so many changes at once as they had in

(B)  at once as many changes as

(C)  at once as many changes that there were with

(D)  as many changes at once as they confronted in

(E)   so many changes at once that confronted them in

Choice D is the best answer, stating grammatically and clearly that, with the 1986 Tax Reform Act, taxpayers confronted more simultaneous changes than ever before. In choice A, the past perfect had [confronted] illogically places the 1986 events in the same time frame as Never before had...; a simple past tense is needed to present the 1986 events as following the earlier ones. Choices B and C awkwardly place at once between confronted and its direct object, changes. Furthermore, B illogically states that the Act itself was many changes, when the point is rather that it presented many changes, and as many ... that is an unidiomatic comparison. Choice E, too, presents an unidiomatic comparison with so many... that.

请牛牛指点

牛牛快出现吧

这套新题没有成型的讨论结果真令人着急哟

顶哇顶