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I probably have a fundamental flaw in my understanding of the following concept. Hope to get some insight.
I have the following 2 sentences: Correct Sentence 1. During the eighteenth century, widespread changes in agriculture, known as the agrarian revolution involved the large-scale introduction of enclosed fields and of new farming techniques and crops, and the substitution of commercial for subsistence farming.
Incorrect Sentence 2. During the eighteenth century, widespread changes in agriculture, known as the agrarian revolution involved the large-scale introduction of enclosed fields, new farming techniques and crops and the substitution of commercial for subsistence farming.
Why is sentence 2 incorrect? Can I not break sentence 2 in the following way: During the eighteenth century, widespread changes in agriculture, known as the agrarian revolution involved the large-scale introduction of a)enclosed fields, b)new farming techniques and c)crops, and the substitution of commercial for subsistence farming.
What makes sentence 1 correct? Its structure according to the way I look at it is of the form: During the eighteenth century, widespread changes in agriculture, known as the agrarian revolution involved the large-scale introduction of a)enclosed fields and of b)new farming techniques and c)crops, and the substitution of commercial for subsistence farming.
Here are 2 more sentences: Correct Sentence The discovery that Earth's inner core rotates independently of and more quickly than Earth's outer layers is responsible for advancing studies of a)the flow of heat from the inner through the outer planet and of b)the formation and periodic reversal in direction of Earth's magnetic field. (After we have said ....studies OF, why do we need to repeat OF between the two items?)
Incorrect Sentence The discovery that Earth's inner core rotates independently of and more quickly than Earth's outer layers is responsible for advancing studies of how heat from the inner core flows through the outer planet, and the formation and periodic reversal in direction of Earth's magnetic field.
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I probably have a fundamental flaw in my understanding of the following concept. Hope to get some insight.
I have the following 2 sentences: Correct Sentence 1. During the eighteenth century, widespread changes in agriculture, known as the agrarian revolution involved the large-scale introduction of enclosed fields and of new farming techniques and crops, and the substitution of commercial for subsistence farming.
Incorrect Sentence 2. During the eighteenth century, widespread changes in agriculture, known as the agrarian revolution involved the large-scale introduction of enclosed fields, new farming techniques and crops and the substitution of commercial for subsistence farming.
Why is sentence 2 incorrect? Can I not break sentence 2 in the following way: During the eighteenth century, widespread changes in agriculture, known as the agrarian revolution involved the large-scale introduction of a)enclosed fields, b)new farming techniques and c)crops, and the substitution of commercial for subsistence farming.
What makes sentence 1 correct? Its structure according to the way I look at it is of the form: During the eighteenth century, widespread changes in agriculture, known as the agrarian revolution involved the large-scale introduction of a)enclosed fields and of b)new farming techniques and c)crops, and the substitution of commercial for subsistence farming.
Here are 2 more sentences: Correct Sentence The discovery that Earth's inner core rotates independently of and more quickly than Earth's outer layers is responsible for advancing studies of a)the flow of heat from the inner through the outer planet and of b)the formation and periodic reversal in direction of Earth's magnetic field. (After we have said ....studies OF, why do we need to repeat OF between the two items?)
Incorrect Sentence The discovery that Earth's inner core rotates independently of and more quickly than Earth's outer layers is responsible for advancing studies of how heat from the inner core flows through the outer planet, and the formation and periodic reversal in direction of Earth's magnetic field.
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The very basic answer would be in the second version of the first example (incorrect one) you are unnecessarily clubbing two entities "new farming techniques" and "corps" whereas the sentence would be correct only if all the four entities are in parallel to each other.
a)enclosed fields b)new farming techniques c)crops d)substitution of commercial for subsistence farming.
Can't understand that. I am looking for the right parallelism structure in this case. You can follow the discussions on both these examples on the links below: bit.ly/1hkPIai bit.ly/1KS97Hd
CORRECT 1. During the eighteenth century, widespread changes in agriculture, known as the agrarian revolution involved the large-scale in troduction of enclosed fields and of new farming techniques and crops , and the substitution of commercial for subsistence farming.
Two different lists with two components each(Meaning wise makes sense)
INCORRECT 2. During the eighteenth century, widespread changes in agriculture, known as the agrarian revolution involved the large-scale introduction of enclosed fields, new farming techniques and crops and the substitution of commercial for subsistence farming.
One list with 3 components (Incorrect because same type of things should be compared in parallel structure ) and another list with two components which is fine
CORRECT The discovery that Earth's inner core rotates independently of and more quickly than Earth's outer layers is responsible for advancing studies of the flow of heat from the inner through the outer planet and of the formation and periodic reversal in direction of Earth's magnetic field.
INCORRECT The discovery that Earth's inner core rotates independently of and more quickly than Earth's outer layers is responsible for advancing studies of how heat from the inner core flows through the outer planet, and the formation and periodic reversal in direction of Earth's magnetic field.[/quote]
second list draws parallel between Clause and Phrase
"The focus of many GMAT Sentence Correction questions is complex parallelism: the parallelism of two phrases (prepositional phrases, infinitive phrases, participial phrases, gerund phrases) or clauses (including substantive clauses). " https://magoosh.com/gmat/verbal/sentenc ... orrection/
The correct list of parallel elements is: During the eighteenth century, widespread changes in agriculture, known as the agrarian revolution involved the - large-scale introduction -- of enclosed fields and -- of new ---- farming techniques and ---- crops and - the substitution of commercial for subsistence farming.
This is an example of double convolution.
The skeleton is as follows: the large-scale introduction of A, and of new B and C, and the substitution of D. The catch here is that B and C, which refer to farming techniques and crops, are new i.e. new farming techniques and NEW crops.
Archived Topic
Hi there,
This topic has been closed and archived due to inactivity or violation of community quality standards. No more replies are possible here.
Where to now? Join ongoing discussions on thousands of quality questions in our Verbal Questions Forum
Still interested in this question? Check out the "Best Topics" block above for a better discussion on this exact question, as well as several more related questions.