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macjas
Joined: 09 May 2012
Last visit: 30 Jul 2015
Posts: 308
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Affiliations: UWC
Location: Canada
Schools: Rotman '15 (A) Schulich '15 (M)
GMAT 1: 620 Q42 V33
GMAT 2: 680 Q44 V38
GPA: 3.43
WE:Engineering (Media/Entertainment)
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Most efforts to combat such mosquito-borne diseases like malaria and dengue have focused either on the vaccination of humans or on exterminating mosquitoes with pesticides.
(A) like malaria and dengue have focused either on the vaccination of humans or on exterminating
(B) like malaria and dengue have focused either on vaccinating of humans or on the extermination of
(C) as malaria and dengue have focused on either vaccinating humans or on exterminating
(D) as malaria and dengue have focused on either vaccinating of humans or on extermination of
(E) as malaria and dengue have focused on either vaccinating humans or exterminating
(A) like malaria and dengue have focused either on the vaccination of humans or on exterminating
(B) like malaria and dengue have focused either on vaccinating of humans or on the extermination of
(C) as malaria and dengue have focused on either vaccinating humans or on exterminating
(D) as malaria and dengue have focused on either vaccinating of humans or on extermination of
(E) as malaria and dengue have focused on either vaccinating humans or exterminating
The Official Guide for GMAT Review 2017
Practice Question
Question No.: SC 796
Page: 708
Practice Question
Question No.: SC 796
Page: 708
This is essentially a test of 1. the use of such as versus like 2. the parallelism of the coordinate conjunction either--- or and 3 the parallelism of a participle or gerund and noun
A like malaria and dengue have focused either on the vaccination of humans or on exterminating--- like can not be used to mark examples
B like malaria and dengue have focused either on vaccinating of humans or on the extermination of----use of like is wrong
C. as malaria and dengue have focused on either vaccinating humans or on exterminating--- either vaccinating humans or on exterminating---wrong parallelism of either ---or coordinate conjunction; on the right hand side of both either and or, similar structure should be used
D as malaria and dengue have focused on either vaccinating of humans or on extermination of----- either vaccinating of humans or on extermination of --- bad co-ordinate conjunction parallelism.
E as malaria and dengue have focused on either vaccinating humans or exterminating --- proper use of either or parallelism. Correct choice.
Now let us take choice B. We rejected it primarily because of the uses of like. However, how about either or parallelism? It is perfectly parallel because of the use of the pronoun on the right hand side of both either and or.
What about vaccinating of and extermination of—this is also perfectly parallel because vaccinating of is a gerund and is as good as extermination of in structure.
A like malaria and dengue have focused either on the vaccination of humans or on exterminating--- like can not be used to mark examples
B like malaria and dengue have focused either on vaccinating of humans or on the extermination of----use of like is wrong
C. as malaria and dengue have focused on either vaccinating humans or on exterminating--- either vaccinating humans or on exterminating---wrong parallelism of either ---or coordinate conjunction; on the right hand side of both either and or, similar structure should be used
D as malaria and dengue have focused on either vaccinating of humans or on extermination of----- either vaccinating of humans or on extermination of --- bad co-ordinate conjunction parallelism.
E as malaria and dengue have focused on either vaccinating humans or exterminating --- proper use of either or parallelism. Correct choice.
Now let us take choice B. We rejected it primarily because of the uses of like. However, how about either or parallelism? It is perfectly parallel because of the use of the pronoun on the right hand side of both either and or.
What about vaccinating of and extermination of—this is also perfectly parallel because vaccinating of is a gerund and is as good as extermination of in structure.
29 Mar 2022, 03:13
Kudos
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Dear Friends,
Here is a detailed explanation to this question-
Concepts tested here: Parallelism + Idioms
• “neither A nor B” and “either A or B” are idiomatic uses and are only used when referring to two elements; A and B must be parallel.
• “like” is used for comparing nouns, “as” is used for comparing actions/clauses, and “such as” is used for giving examples.
A: This answer choice fails to maintain parallelism between A ("on the vaccination of humans") and B ("exterminating mosquitoes with pesticides") in the idiomatic construction "either A or B"; please remember, “neither A nor B” and “either A or B” are idiomatic uses and are only used when referring to two elements; A and B must be parallel. Further, Option A incorrectly uses the unidiomatic construction "such...like" to provide the examples of "malaria" and "dengue"; please remember, “like” is used for comparing nouns, “as” is used for comparing actions/clauses, and “such as” is used for giving examples.
B: This answer choice incorrectly uses the unidiomatic construction "such...like" to provide the examples of "malaria" and "dengue"; please remember, “like” is used for comparing nouns, “as” is used for comparing actions/clauses, and “such as” is used for giving examples.
C: This answer choice fails to maintain parallelism between A ("vaccinating humans") and B ("on exterminating mosquitoes with pesticides") in the idiomatic construction "either A or B"; please remember, “neither A nor B” and “either A or B” are idiomatic uses and are only used when referring to two elements; A and B must be parallel.
D: This answer choice fails to maintain parallelism between A ("vaccinating of humans") and B ("on extermination mosquitoes with pesticides") in the idiomatic construction "either A or B"; please remember, “neither A nor B” and “either A or B” are idiomatic uses and are only used when referring to two elements; A and B must be parallel.
E: Correct. This answer choice correctly maintains parallelism between A ("vaccinating humans") and B ("exterminating mosquitoes with pesticides") in the idiomatic construction "either A or B". Further, Option E correctly uses the idiomatic construction "such...as" to provide the examples of "malaria" and "dengue".
Hence, E is the best answer choice.
To understand the concept of "Like" vs "As" on GMAT, you may want to watch the following video (~1 minute):
To understand the concept of "Either-Or" and "Neither-Nor" on GMAT, you may want to watch the following video (~1 minute):
All the best!
Experts' Global Team
Here is a detailed explanation to this question-
macjas
Most efforts to combat such mosquito-borne diseases like malaria and dengue have focused either on the vaccination of humans or on exterminating mosquitoes with pesticides.
(A) like malaria and dengue have focused either on the vaccination of humans or on exterminating
(B) like malaria and dengue have focused either on vaccinating of humans or on the extermination of
(C) as malaria and dengue have focused on either vaccinating humans or on exterminating
(D) as malaria and dengue have focused on either vaccinating of humans or on extermination of
(E) as malaria and dengue have focused on either vaccinating humans or exterminating
(A) like malaria and dengue have focused either on the vaccination of humans or on exterminating
(B) like malaria and dengue have focused either on vaccinating of humans or on the extermination of
(C) as malaria and dengue have focused on either vaccinating humans or on exterminating
(D) as malaria and dengue have focused on either vaccinating of humans or on extermination of
(E) as malaria and dengue have focused on either vaccinating humans or exterminating
Concepts tested here: Parallelism + Idioms
• “neither A nor B” and “either A or B” are idiomatic uses and are only used when referring to two elements; A and B must be parallel.
• “like” is used for comparing nouns, “as” is used for comparing actions/clauses, and “such as” is used for giving examples.
A: This answer choice fails to maintain parallelism between A ("on the vaccination of humans") and B ("exterminating mosquitoes with pesticides") in the idiomatic construction "either A or B"; please remember, “neither A nor B” and “either A or B” are idiomatic uses and are only used when referring to two elements; A and B must be parallel. Further, Option A incorrectly uses the unidiomatic construction "such...like" to provide the examples of "malaria" and "dengue"; please remember, “like” is used for comparing nouns, “as” is used for comparing actions/clauses, and “such as” is used for giving examples.
B: This answer choice incorrectly uses the unidiomatic construction "such...like" to provide the examples of "malaria" and "dengue"; please remember, “like” is used for comparing nouns, “as” is used for comparing actions/clauses, and “such as” is used for giving examples.
C: This answer choice fails to maintain parallelism between A ("vaccinating humans") and B ("on exterminating mosquitoes with pesticides") in the idiomatic construction "either A or B"; please remember, “neither A nor B” and “either A or B” are idiomatic uses and are only used when referring to two elements; A and B must be parallel.
D: This answer choice fails to maintain parallelism between A ("vaccinating of humans") and B ("on extermination mosquitoes with pesticides") in the idiomatic construction "either A or B"; please remember, “neither A nor B” and “either A or B” are idiomatic uses and are only used when referring to two elements; A and B must be parallel.
E: Correct. This answer choice correctly maintains parallelism between A ("vaccinating humans") and B ("exterminating mosquitoes with pesticides") in the idiomatic construction "either A or B". Further, Option E correctly uses the idiomatic construction "such...as" to provide the examples of "malaria" and "dengue".
Hence, E is the best answer choice.
To understand the concept of "Like" vs "As" on GMAT, you may want to watch the following video (~1 minute):
To understand the concept of "Either-Or" and "Neither-Nor" on GMAT, you may want to watch the following video (~1 minute):
All the best!
Experts' Global Team
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