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求助大牛帮助解惑，谢谢！
OG13.94 Heating-oil prices are expected to be higher this year than last because refiners are paving about $5 a barrel more for crude oil than they were last year.
(A) Heating-oil prices are expected to be higher this year than last because refiners are paying about $5 a barrel more for crude oil than they were
(B) Heating-oil prices are expected to rise higher this year over last because refiners pay about $5 a barrel for crude oil more than they did
(C) Expectations are for heating-oil prices to be higher this year than last year's because refiners are paying about $5 a barrel for crude oil more than they did
(D) It is the expectation that heating-oil prices will be higher for this year over last because refiners are paying about $5 a barrel more for crude oil now than what they were
(E) It is expected that heating-oil prices will rise higher this year than last year's because refiners pay about $5 a barrel for crude oil more than they did
OG13.94答案为A。OG解释C选项标绿色的部分错误原因是“the possessive year’s is not parallel with the adverbial phrase this year.”
如果要从平行角度考虑，那如果A选项的前半部分写成“Heating-oil prices are expected to be higher this year than those of last (year)”是否可以？
OG16.90 Prices at the producer level are only 1.3 percent higher now than a year ago and are going down, even though floods in the Midwest and drought in the South are hurting crops and therefore raised corn and soybean prices.
(A) than a year ago and are going down, even though floods in the Midwest and drought in the South are hurting crops and therefore raised
(B) than those of a year ago and are going down, even though floods in the Midwest and drought in the South are hurting crops and therefore raising
(C) than a year ago and are going down, despite floods in the Midwest and drought in the South, and are hurting crops and therefore raising
(D) as those of a year ago and are going down, even though floods in the Midwest and drought in the South hurt crops and therefore raise
(E) as they were a year ago and are going down, despite floods in the Midwest and drought in the South, and are hurting crops and therefore raising
但是，OG16.90的答案为B。OG的解释：
A The first part of this version of the sentence illogically compares prices to a time; the second part of the sentence indicates that a completed action (raised . . . prices) results from an ongoing present condition (floods . . . and drought . . . are hurting crops).
B Correct. This version of the sentence makes an appropriate comparison (between prices now and those of a year ago), and uses tenses in an appropriate way.
还请大牛解释为什么：
OG13.94 Heating-oil prices are expected to be higher this year than last ...是可以的。
OG16.90 Prices at the producer level are only 1.3 percent higher now than a year ago ...却是不可以的。我觉得这两句的结构与意思几乎都是一样的啊。
感谢！！！
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发表于 2019-11-18 14:22:54
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