7.If a single strain of plant is used for a given crop over a wide area, a practice fostered by modern seed-marketing methods, it increases the likelihood that the impact of a single crop disease or pest will be disastrous.
(A) If a single strain of plant is used for a given crop over a wide area, a practice fostered by modern seed-marketing methods, it
(B) If a single strain of plant is used for a given crop over a wide area, as is fostered by modern seed-marketing methods, it
(C) A practice fostered by modern seed-marketing methods, a single strain of plant used for a given crop over a wide area
(D) A single strain of plant used for a given crop over a wide area, a practice fostered by modern seed-marketing methods,（E）
(E) The use of single strain of plant for a given crop over a wide area, a practice fostered by modern seed-marketing methods,
Choice A is faulty because the pronoun it and the appositive a practice each lack a noun referent. Nor are there logical referents in choice B for as is and it. Choice C entails a false appositive: the sentence now says that the single strain of plant is itself a practice fostered by modern seed-marketing methods, not that the use of a single strain is such a practice. Choice D reverses the order of the constructions, but the appositive remains illogical. Choice E is correct: use is the proper subject for the verb increases and a logical governing noun for the appositive practice. This question is of middle difficulty.
ETS说“Choice A is faulty because the pronoun it and the appositive a practice each lack a noun referent”....就是说a practice作为同位语前面没有可指代的名词.我想问的是,如果我理解成a practice指代前面的a single strain of plant is used for a given crop over a wide area这句话可以吗?
谢谢.
偶也想听听高人在这个问题上的意见~~顶！！！！！！！
斑竹斑竹~~高手高手~~前辈前辈~~~~~~~~快来呀
7.If a single strain of plant is used for a given crop over a wide area, a practice fostered by modern seed-marketing methods, it increases the likelihood that the impact of a single crop disease or pest will be disastrous.
(A) If a single strain of plant is used for a given crop over a wide area, a practice fostered by modern seed-marketing methods, it
(B) If a single strain of plant is used for a given crop over a wide area, as is fostered by modern seed-marketing methods, it
(C) A practice fostered by modern seed-marketing methods, a single strain of plant used for a given crop over a wide area
(D) A single strain of plant used for a given crop over a wide area, a practice fostered by modern seed-marketing methods,（E）
(E) The use of single strain of plant for a given crop over a wide area, a practice fostered by modern seed-marketing methods,
Choice A is faulty because the pronoun it and the appositive a practice each lack a noun referent. Nor are there logical referents in choice B for as is and it. Choice C entails a false appositive: the sentence now says that the single strain of plant is itself a practice fostered by modern seed-marketing methods, not that the use of a single strain is such a practice. Choice D reverses the order of the constructions, but the appositive remains illogical. Choice E is correct: use is the proper subject for the verb increases and a logical governing noun for the appositive practice. This question is of middle difficulty.
ETS说“Choice A is faulty because the pronoun it and the appositive a practice each lack a noun referent”....就是说a practice作为同位语前面没有可指代的名词.我想问的是,如果我理解成a practice指代前面的a single strain of plant is used for a given crop over a wide area这句话可以吗?
谢谢.
参考以下http://forum.chasedream.com/dispbbs.asp?BoardID=23&ID=10852
我认为：A中的practice可以作为同位语，指代前面整句子。
晕，我一直认为同位语就只能一直只能指代前面的名词，不能指代整个句子，直到我看到下面这个例子。
大全228. Corporations will soon be required to report to the government whether they have the necessary reserves to pay the pension benefits earned by their employees and that the information be published in annual reports to shareholders.
(A) earned by their employees and that the information be published
(B) that their employees earned and that the information be published
(C) that was earned by their employees with the information being published
(D) earned by their employees, information that must also be published（D）
(E) earned by their employees and published the information
***information就是指代前面的whether句子。
请NN指点。
juan，我又看了几个贴子，更新了想法，修订了我的原贴。
不过，我也有点儿拿不准了，还是希望能有其他NN指点~~~
7.If a single strain of plant is used for a given crop over a wide area, a practice fostered by modern seed-marketing methods, it increases the likelihood that the impact of a single crop disease or pest will be disastrous.
(A) If a single strain of plant is used for a given crop over a wide area, a practice fostered by modern seed-marketing methods, it
(B) If a single strain of plant is used for a given crop over a wide area, as is fostered by modern seed-marketing methods, it
(C) A practice fostered by modern seed-marketing methods, a single strain of plant used for a given crop over a wide area
(D) A single strain of plant used for a given crop over a wide area, a practice fostered by modern seed-marketing methods,（E）
(E) The use of single strain of plant for a given crop over a wide area, a practice fostered by modern seed-marketing methods,
Choice A is faulty because the pronoun it and the appositive a practice each lack a noun referent. Nor are there logical referents in choice B for as is and it. Choice C entails a false appositive: the sentence now says that the single strain of plant is itself a practice fostered by modern seed-marketing methods, not that the use of a single strain is such a practice. Choice D reverses the order of the constructions, but the appositive remains illogical. Choice E is correct: use is the proper subject for the verb increases and a logical governing noun for the appositive practice. This question is of middle difficulty.
ETS说“Choice A is faulty because the pronoun it and the appositive a practice each lack a noun referent”....就是说a practice作为同位语前面没有可指代的名词.我想问的是,如果我理解成a practice指代前面的a single strain of plant is used for a given crop over a wide area这句话可以吗?
谢谢.
我觉得A的a practice可以成为概括性同位结构，指代前面句子。Jerry的例子也说明了这是可以的。
A的问题是it。
我觉得A的a practice可以成为概括性同位结构，指代前面句子。Jerry的例子也说明了这是可以的。
A的问题是it。
这题答案我理解.我原先想探讨的就是同位结构除了指代前面的名词,还可以不可以指代前面的句子.现在看了是可以指代前面句子的.谢谢大家.
对了,同位结构指代前面句子的例子我又找到一个,就是那天讨论的真题一道:
There are no legal limits, as there are for cod and haddock, on the size of the monkfish that can be caught, a circumstance that contributes to their depletion through overfishing.
A. There are no legal limits, as there are for cod and haddock, on the size of the monkfish that can be caught, a circumstance that contributes to their depletion through overfishing
B. There are no legal limits on the size of monkfish that can be caught, unlike cod or haddock, a circumstance that contributes to depleting them because they are being overfished.
C. There are legal limits on the size of cod and haddock that can be caught, but not for monkfish, which contributes to its depletion through overfishing.
D. Unlike cod and haddock, there are no legal size limits on catching monkfish, which contributes to its depletion by being overfished.
E. Unlike catching cod and haddock, there are no legal size limits on catching monkfish, contributing to their depletion because they are overfished.
大家讨论的结果答案是B. B中的a circumstance显然是指代前面整个句子,而不是某个名词.
请指教.
总觉得上题的B怪怪的，插入语unlike cod or haddock的位置容易引起a circumstance是在同位指代前面的cod or haddock，尽管逻辑意思上完全讲不通。juan确定选B吗？
看来没有人问啊，我很想知道这句话如何翻译哦！single strain of plant 不知道什么意思。
我觉得A的a practice可以成为概括性同位结构，指代前面句子。Jerry的例子也说明了这是可以的。
A的问题是it。
我觉得A中，a practice不能指代前面if引导的条件从句。可以发现 jerry所举的例子中，whether引导的句子是作宾语的，而名词也是可以做宾语，所以可以用information这个名词来概括。 因此，我觉得不能一概认为同位语可不可以指代句子，关键要看成分和结构是不是“同位”
欢迎讨论。
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