Summer is Coming! Join the Game of Timers Competition to Win Epic Prizes. Registration is Open. Game starts Mon July 1st.

It is currently 22 Jul 2019, 00:49

Close

GMAT Club Daily Prep

Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Daily Prep Questions via email.

Customized
for You

we will pick new questions that match your level based on your Timer History

Track
Your Progress

every week, we’ll send you an estimated GMAT score based on your performance

Practice
Pays

we will pick new questions that match your level based on your Timer History

Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.

Close

Request Expert Reply

Confirm Cancel

Around 1900, fishermen in the Chesapeake Bay area landed more than

  new topic post reply Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
TAGS:

Hide Tags

Find Similar Topics 
Senior Manager
Senior Manager
avatar
Joined: 05 Nov 2012
Posts: 433
Concentration: Technology, Other
GMAT ToolKit User Reviews Badge
Around 1900, fishermen in the Chesapeake Bay area landed more than  [#permalink]

Show Tags

New post Updated on: 11 Dec 2018, 04:56
12
171
00:00
A
B
C
D
E

Difficulty:

  55% (hard)

Question Stats:

64% (01:42) correct 36% (01:59) wrong based on 3127 sessions

HideShow timer Statistics


Around 1900, fishermen in the Chesapeake Bay area landed more than seventeen million pounds of shad in a single year, but by 1920, over-fishing and the proliferation of milldams and culverts that have blocked shad migrations up their spawning streams had reduced landings to less than four million pounds.


(A) that have blocked shad migrations up their spawning streams had reduced landings to less

(B) that blocked shad from migrating up their spawning streams had reduced landings to less

(C) that blocked shad from migrating up their spawning streams reduced landings to a lower amount

(D) having blocked shad from migrating up their spawning streams reduced landings to less

(E) having blocked shad migrations up their spawning streams had reduced landings to an amount lower

Originally posted by JarvisR on 17 Aug 2015, 04:13.
Last edited by Bunuel on 11 Dec 2018, 04:56, edited 2 times in total.
Renamed the topic and edited the question.
Most Helpful Expert Reply
Retired Moderator
User avatar
V
Status: enjoying
Joined: 19 Feb 2007
Posts: 4780
Location: India
WE: Education (Education)
Re: Around 1900, fishermen in the Chesapeake Bay area landed more than  [#permalink]

Show Tags

New post 17 Aug 2015, 10:01
34
38
There is an adage which says that be wary of the obvious. The first obvious is to say that when there was an earlier event in 1990, a later event as in 1920 should never be assigned a past perfect. Second, obvious is that use of less is inappropriate because 17 million pounds is countable. Therefore, a lower amount should be the right one. Both these assumptions are wrong as per the custom of American English, including GMAT.
It is customary to use a past perfect for a later event, when there is a time reference such as 1920. Don’t we say that I started my GMAT preparation in 2005 and by 2015, I had completed it. As there are exceptions to every rule, the use of past perfect is taken for granted in such rare cases.
17 million pounds is taken as a mass quantity rather than as countable individual pounds. Therefore the use of less is justified
By this token of reasoning, B is an acceptable answer.


(A) that have blocked shad migrations up their spawning streams have
reduced landings to less that have blocked is a wrong tense for an event that was completed in the past

(B) That blocked shad from migrating up their spawning streams had reduced landings to less ------ Correct
(C) that blocked shad from migrating up their spawning streams reduced landings to a lower amount ----- 'lower' is out of sync
(D) having blocked shad from migrating up their spawning streams reduced landings to less ---Shad migrations were blocked by the hurdles and not the shads themselves

(E) Having blocked shad migrations up their spawning streams had reduced landings to an amount lower –amount lower is out of sync

_________________
The Take-Away: Grammar First and Then the Rest
Most Helpful Community Reply
VP
VP
User avatar
P
Joined: 27 Mar 2010
Posts: 1379
Location: India
Schools: ISB
GPA: 3.31
Re: Around 1900, fishermen in the Chesapeake Bay area landed more than  [#permalink]

Show Tags

New post 29 Mar 2016, 04:08
10
4
SamuelWitwicky wrote:
So basically, this fisherman question, like the honeybee question, is merely stating facts ("narration" as Ron called it) - that at 1900, this was the scenario, then fastforward 20 years later, 1st event (i.e. overfishing +building) happened and resulted in another scenario. Same for the honeybee, after their release, then the first event (i.e. migration) happened. Therefore, this is the exception to the past perfect>>past tense rule.

Yes, while daagh has already explained it with an official example, another GMATPrep sentence that comes to mind:

In 1981 children in the United States spent an average of slightly less than two and a half hours a week doing household chores; by 1997 that figure had grown to nearly
six hours a week
.

There are actually 3 events that this sentence talks about:

(a) children in the United States spent an average of slightly less than two and a half hours a week doing household chores (1981)

(b) 16 years passing since then (between 1981 and 1997)

(c) But, before those 16 years passed (within those years, as indicated by the words by 1997), that figure (two and a half hours a week doing household chores) went up to 6 hours.

However, while (b) and (c) both happened in the past, (c) happened before (b) and hence, (c) should be in past perfect (in this case: had grown). In fact, this is a classical usage of Past Perfect.

Our book EducationAisle Sentence Correction Nirvana discusses this concept of Past perfect tense, its application and examples in significant detail. In the book, we have provided a similar example:

In 2007, a typical web user spent less than 4 hours a month on Facebook; by 2011, that figure had gone up to 8 hours.

If someone is interested, PM me your email-id, I can mail the corresponding section of the book.
_________________
Thanks,
Ashish
EducationAisle, Bangalore

Sentence Correction Nirvana available on Amazon.in and Flipkart

Now! Preview the entire Grammar Section of Sentence Correction Nirvana at pothi.com
General Discussion
Manager
Manager
avatar
Status: Manager
Affiliations: Manager
Joined: 06 Nov 2012
Posts: 127
Location: India
Concentration: Entrepreneurship, Sustainability
Schools: Boston U '19 (D)
GMAT 1: 650 Q49 V29
GMAT 2: 680 Q49 V33
GPA: 3
WE: Supply Chain Management (Energy and Utilities)
Re: Around 1900, fishermen in the Chesapeake Bay area landed more than  [#permalink]

Show Tags

New post 17 Aug 2015, 04:53
2
B. Around 1900, fishermen in the Chesapeake Bay area landed more than seventeen million pounds of shad in a single year, but by 1920, over-fishing and the proliferation of mill dams and culverts that blocked shad from migrating up their spawning streams had reduced landings to less than four million pounds.

Around 1900, fishermen in the Chesapeake Bay area landed more than seventeen million pounds of shadin a single year, but by 1920, over-fishing and the proliferation of mill dams and culverts that blocked shad from migrating up their spawning streams had reduced landings to less than four million pounds.

fishermen in the Chesapeake Bay area landed more than seventeen million pounds of shad, over-fishing and the proliferation of mill dams and culverts had reduced landings to less than four million pounds.


How can the answer be 'B' ?

Doesn't use of Past perfect in B show that 'Reduced landings' is happening before 'Fisherman landed more than 17m pound' ?
_________________
Hard-work, Perseverance and Commitment.....
Senior Manager
Senior Manager
User avatar
B
Joined: 05 Apr 2015
Posts: 365
Reviews Badge
Re: Around 1900, fishermen in the Chesapeake Bay area landed more than  [#permalink]

Show Tags

New post Updated on: 17 Aug 2015, 07:59
2
1
Hi dinesh86,

as per the sentence construction it is obvious that "landing more than seventeen million pounds of shad in a single year" happened prior to the events in 1920 so there is no need to include that in the timeline.

As per B, "that" is rightly used to refer to what caused the blockage that is:"over-fishing and the proliferation of milldams and culverts" and the option follows a cause and effect relationship. so as per the timeline.. "had reduced" is correct..

In D and E.. having (verb-ing modifier) wrongly modifies" the milldams and culverts".

Regards,
Dom.

Originally posted by dominicraj on 17 Aug 2015, 07:55.
Last edited by dominicraj on 17 Aug 2015, 07:59, edited 1 time in total.
Intern
Intern
avatar
Joined: 24 Jun 2012
Posts: 10
Re: Around 1900, fishermen in the Chesapeake Bay area landed more than  [#permalink]

Show Tags

New post 26 Aug 2015, 03:17
4
The sequence of events here is

First there was 1900....then culverts were built and reduced the amount to 4 million ----then came 1920.

So the mid event - "reduction" happened before 1920.. so it should be " had reduced"

So ans is B

I too chose the wrong ans the first time.

Cheers
BSchool Thread Master
User avatar
B
Joined: 13 Jul 2015
Posts: 75
Location: Singapore
Schools: LBS '21 (A)
GMAT 1: 730 Q50 V39
WE: Operations (Investment Banking)
Re: Around 1900, fishermen in the Chesapeake Bay area landed more than  [#permalink]

Show Tags

New post 15 Sep 2015, 00:20
daagh wrote:
There is an adage which says that be wary of the obvious. The first obvious is to say that when there was an earlier event in 1990, a later event as in 1920 should never be assigned a past perfect. Second, obvious is that use of less is inappropriate because 17 million pounds is countable. Therefore, a lower amount should be the right one. Both these assumptions are wrong as per the custom of American English, including GMAT.
It is customary to use a past perfect for a later event, when there is a time reference such as 1920. Don’t we say that I started my GMAT preparation in 2005 and by 2015, I had completed it. As there are exceptions to every rule, the use of past perfect is taken for granted in such rare cases.
17 million pounds is taken as a mass quantity rather than as countable individual pounds. Therefore the use of less is justified
By this token of reasoning, B is an acceptable answer.


(A) that have blocked shad migrations up their spawning streams have
reduced landings to less that have blocked is a wrong tense for an event that was completed in the past

(B) That blocked shad from migrating up their spawning streams had reduced landings to less ------ Correct
(C) that blocked shad from migrating up their spawning streams reduced landings to a lower amount ----- 'lower' is out of sync
(D) having blocked shad from migrating up their spawning streams reduced landings to less ---Shad migrations were blocked by the hurdles and not the shads themselves

(E) Having blocked shad migrations up their spawning streams had reduced landings to an amount lower –amount lower is out of sync


Daagh, I really need your help on this one. My GMAT centre tells me that for 2 sequential events, the 1st event is in past perfect, and the second in simple past. The example it gave is: "He had never seen (1st event) a GMAT question before he actually took (later event) the exam".

Next question, I still don't understand the sequence of events happening here. Is it: 17mill landings --> some guys build stuff --> these stuff block shad migration + they guys overfish --> therefore landings are reduced??

Do hope you see this, this question is driving me nuts lol
Retired Moderator
User avatar
V
Status: enjoying
Joined: 19 Feb 2007
Posts: 4780
Location: India
WE: Education (Education)
Re: Around 1900, fishermen in the Chesapeake Bay area landed more than  [#permalink]

Show Tags

New post 15 Sep 2015, 04:30
7
1
SamulWitwicky
Hi

Point 1.
We are guided by a similar official example from GMATPREP as given below , which has given us the clue why such structures are accepted by GMAT. This is really different from normal thinking and we have to accept it as such.

Quote:
Less than 35 years after the release of African honeybees outside Sao Paulo, Brazil, their descendants, popularly known as killer bees, had migrated as far north as southern Texas.

A) Less than 35 years after the release of African honeybees outside Sao Paulo, Brazil,

B) In less than 35 years since releasing African honeybees outside Sao Paulo, Brazil,

C) In less than the 35 years since African honeybees had been released outside Sao Paulo, Brazil,

D) It took less than 35 years from the release of African honeybees outside Sao Paulo, Brazil, when

E) It took less than the 35 years after the time that African honeybees were released outside Sao Paulo, Brazil, and then

After seeing that, please go through the explanation by Ron, one of the most noted personalities of GMAT SC in the link given
https://www.manhattanprep.com/gmat/foru ... t1864.html

Point 2.
Quote:
Next question, I still don't understand the sequence of events happening here. Is it: 17mill landings --> some guys build stuff --> these stuff block shad migration + they guys overfish --> therefore landings are reduced??


Quote:
Around 1900, fishermen in the Chesapeake Bay area landed more than seventeen million pounds of shad in a single year, but by 1920, over-fishing and the proliferation of milldams and culverts that have blocked shad migrations up their spawning streams had reduced landings to less than four million pounds.

(A) that have blocked shad migrations up their spawning streams had reduced landings to less
(B) that blocked shad from migrating up their spawning streams had reduced landings to less
(C) that blocked shad from migrating up their spawning streams reduced landings to a lower amount
(D) having blocked shad from migrating up their spawning streams reduced landings to less
(E) having blocked shad migrations up their spawning streams had reduced landings to an amount lower


For an understanding of the of the sequence, you may need to know a little bit about the life-cycle of the shad. Adult shads are sea –living; but the young ones cannot tolerate sea water. So the adults reach the seashores and then swim up the rivers that join the bay from the land. After travelling a good length, they spawn in fresh waters; they adults may either die away immediately after spawning or may return to the sea to pick up strength and re-enter rivers for spawning again.

The young ones then hatch in the river waters and stay there for six months or so, before they return to the sea via the same sea shore from where the mother entered the river. Now overfishing can occur in the following areas. 1. of the adults at the sea-shore area before entering the rivers. 2. in the rivers while they swim up for spawning, or when the growing young ones are trying to return to the sea. Meantime the inland guys are building dams and culverts for agriculture and energy production.The building of dams and culverts blocks the free flow of water as well as the swim of both the adults upstream and the young ones downstream. The young ones, if they do not reach seawaters with in a given time, will die out. The point is that all the impediments progressively have brought down the population of fish in the bay area, in a span of 20 years from 17mn in 1900 to barely 4 mn in 1920. Landings here imply the overall population.

Samuel! This is as far as I know of this episode from my readings. I may be wrong too.
_________________
The Take-Away: Grammar First and Then the Rest
BSchool Thread Master
User avatar
B
Joined: 13 Jul 2015
Posts: 75
Location: Singapore
Schools: LBS '21 (A)
GMAT 1: 730 Q50 V39
WE: Operations (Investment Banking)
Re: Around 1900, fishermen in the Chesapeake Bay area landed more than  [#permalink]

Show Tags

New post 16 Sep 2015, 21:43
1
daagh wrote:
SamulWitwicky
Hi

Point 1.
We are guided by a similar official example from GMATPREP as given below , which has given us the clue why such structures are accepted by GMAT. This is really different from normal thinking and we have to accept it as such.

For an understanding of the of the sequence, you may need to know a little bit about the life-cycle of the shad. Adult shads are sea –living; but the young ones cannot tolerate sea water. So the adults reach the seashores and then swim up the rivers that join the bay from the land. After travelling a good length, they spawn in fresh waters; they adults may either die away immediately after spawning or may return to the sea to pick up strength and re-enter rivers for spawning again.

The young ones then hatch in the river waters and stay there for six months or so, before they return to the sea via the same sea shore from where the mother entered the river. Now overfishing can occur in the following areas. 1. of the adults at the sea-shore area before entering the rivers. 2. in the rivers while they swim up for spawning, or when the growing young ones are trying to return to the sea. Meantime the inland guys are building dams and culverts for agriculture and energy production.The building of dams and culverts blocks the free flow of water as well as the swim of both the adults upstream and the young ones downstream. The young ones, if they do not reach seawaters with in a given time, will die out. The point is that all the impediments progressively have brought down the population of fish in the bay area, in a span of 20 years from 17mn in 1900 to barely 4 mn in 1920. Landings here imply the overall population.

Samuel! This is as far as I know of this episode from my readings. I may be wrong too.


Hey thanks a lot Daagh. And thanks a lot for the link. Took me awhile to get it, but I think I do now. It's hard to put my thoughts into words but i'll try. So basically, this fisherman question, like the honeybee question, is merely stating facts ("narration" as Ron called it) - that at 1900, this was the scenario, then fastforward 20 years later, 1st event (i.e. overfishing +building) happened and resulted in another scenario. Same for the honeybee, after their release, then the first event (i.e. migration) happened. Therefore, this is the exception to the past perfect>>past tense rule.

VS

2 explicit actions for e.g. this question on buildings and earthquakes --> 37-og-vr-some-buildings-that-were-destroyed-and-heavily-56040.html

buildings had to be FIRST constructed badly, then SECOND, be destroyed by an earthquake. This is where the rule is essential in demonstrating the sequence of events.

what do you think of my reasoning?
Retired Moderator
User avatar
B
Status: Getting strong now, I'm so strong now!!!
Affiliations: National Institute of Technology, Durgapur
Joined: 04 Jun 2013
Posts: 435
Location: United States (DE)
GPA: 3.32
WE: Information Technology (Health Care)
GMAT ToolKit User Reviews Badge
Re: Around 1900, fishermen in the Chesapeake Bay area landed more than  [#permalink]

Show Tags

New post 28 Mar 2016, 23:43
1
Intern
Intern
avatar
Joined: 05 Feb 2016
Posts: 12
Re: Around 1900, fishermen in the Chesapeake Bay area landed more than  [#permalink]

Show Tags

New post 17 Jun 2016, 09:39
1
In over-fishing and the proliferation of milldams and culverts that blocked shad migration
That refers to the preceding noun (culverts here), but it is not the culverts that blocked shad migration.
'over fishing and proliferation ' overall had an effect that blocked the migration. So ing+verb should be used to refer to the effect of the preceding statement.

Please correct me in this concept.
Current Student
User avatar
Joined: 18 Oct 2014
Posts: 830
Location: United States
GMAT 1: 660 Q49 V31
GPA: 3.98
GMAT ToolKit User
Re: Around 1900, fishermen in the Chesapeake Bay area landed more than  [#permalink]

Show Tags

New post 17 Jun 2016, 12:19
3
1
ishajindal wrote:
In over-fishing and the proliferation of milldams and culverts that blocked shad migration
That refers to the preceding noun (culverts here), but it is not the culverts that blocked shad migration.
'over fishing and proliferation ' overall had an effect that blocked the migration. So ing+verb should be used to refer to the effect of the preceding statement.

Please correct me in this concept.


Hi ishajindal,

I hope my explanation will be of help to you.

Around 1900, fishermen in the Chesapeake Bay area landed more than seventeen million pounds of shad in a single year, but by 1920, over-fishing and the proliferation of milldams and culverts that have blocked shad migrations up their spawning streams had reduced landings to less than four million pounds.

(A) that have blocked shad migrations up their spawning streams had reduced landings to less
(B) that blocked shad from migrating up their spawning streams had reduced landings to less
(C) that blocked shad from migrating up their spawning streams reduced landings to a lower amount
(D) having blocked shad from migrating up their spawning streams reduced landings to less
(E) having blocked shad migrations up their spawning streams had reduced landings to an amount lower

Around 1900, fishermen in the Chesapeake Bay area landed more than seventeen million pounds of shad in a single year is a complete sentence by itself.

Looking at the next sentence, we realize that the contrast is mentioned. The sentence says that by year 1920, over-fishing and the proliferation of mill dams and culverts landings were already reduced to less than four million pounds. And, milldams and culverts blocked shad migrations up their spawning streams.

To answer your question,-ing form preceded by ',' shows results or additional information. But, -ing form not preceded by ',' modifies the closest noun. That is why choice D and E are wrong.

(A) that have blocked shad migrations up their spawning streams had reduced landings to less. 'have' represents past particple, but the event ended in past. Hence, past participle is not required.
(B) that blocked shad from migrating up their spawning streams had reduced landings to less. Correct option. 'had' is correctly used to show that the even happened already before 1920
(C) that blocked shad from migrating up their spawning streams reduced landings to a lower amount. 'lower amount' is not right.
_________________
I welcome critical analysis of my post!! That will help me reach 700+
Current Student
avatar
B
Joined: 18 Sep 2015
Posts: 72
GMAT 1: 610 Q43 V31
GMAT 2: 610 Q47 V27
GMAT 3: 650 Q48 V31
GMAT 4: 700 Q49 V35
WE: Project Management (Health Care)
GMAT ToolKit User
Re: Around 1900, fishermen in the Chesapeake Bay area landed more than  [#permalink]

Show Tags

New post 20 Oct 2016, 04:18
JarvisR wrote:
Around 1900, fishermen in the Chesapeake Bay area landed more than seventeen million pounds of shad in a single year, but by 1920, over-fishing and the proliferation of milldams and culverts that have blocked shad migrations up their spawning streams had reduced landings to less than four million pounds.

(A) that have blocked shad migrations up their spawning streams had reduced landings to less
(B) that blocked shad from migrating up their spawning streams had reduced landings to less
(C) that blocked shad from migrating up their spawning streams reduced landings to a lower amount
(D) having blocked shad from migrating up their spawning streams reduced landings to less
(E) having blocked shad migrations up their spawning streams had reduced landings to an amount lower


Lets break down the sentence:
- Around 1900, fishermen in the Chesapeake Bay area landed more than seventeen million pounds of shad in a single year, but
- by 1920, [over-fishing and the proliferation of milldams and culverts that have blocked shad migrations up their spawning streams] had reduced landings to less than four million pounds.
-> options C & D are out.

- in this sentence we have 2 independent clauses, separated with "but"
- the 2nd sentence use the word "by" which is a clear indication for past perfect.
- the 2nd sentence have a phrase (with a modifier to one of its elements) - which functions as a singular subject.
- It will be a better idea to start from the inside of that phrase ( marked with "["..."]" ).

[over-fishing] and [the proliferation of (milldams) and (culverts) that have blocked shad migrations up their spawning streams]

- the 2 elements of the parallelism are shown above.
- now lets look on the next phrase+modifier:
"the proliferation of (milldams) and (culverts) that have blocked shad migrations up their spawning streams"
* that modifies "milldams" & "culverts".
* the tense used is present perfect. Now using this tense means that "milldams" & "culverts" are still blocking the shad migration - which does not make any sense, since it is clear from that context that this action has been completed.
-> option A is out.

We are left with: B and E.

- the use of having is not correct. Having is used to emphasis actions, for example: "having completed his homework, Dan went to a friend'. the emphasis is on the fact that Dan finished his homework and only then continued to the 2nd action.

In addition the "Shad migrations" does not have a spawning stream - this makes not sense.
=>E is out.

We are left with B.
Retired Moderator
User avatar
S
Joined: 14 Dec 2013
Posts: 2870
Location: Germany
Schools: German MBA
GMAT 1: 780 Q50 V47
WE: Corporate Finance (Pharmaceuticals and Biotech)
GMAT ToolKit User Reviews Badge
Re: Around 1900, fishermen in the Chesapeake Bay area landed more than  [#permalink]

Show Tags

New post 01 Dec 2016, 06:19
rakaisraka wrote:
Hi Sayantan,
Can you check this question :http://gmatclub.com/forum/around-1900-fishermen-in-the-chesapeake-203779.html#p1562149

can you please explain the use of Having?

In this question what having is modifying- to hurdles or to the subject - overfishing and prolifiration. Always confused on the use of having.
Thanks.

Also, how to use the request expert reply?I wanted to pt question before requesting but it does not give option of asking question.


"Having + past participle" is called a perfect participle - it is used to depict an action that has been completed.

Having done my homework, I went out to play.

===============

Post your query in the thread as usual and then click on the "request expert reply" button.
Intern
Intern
avatar
Joined: 26 Nov 2016
Posts: 9
Location: Australia
Concentration: Strategy, International Business
GMAT 1: 770 Q50 V45
GPA: 4
Re: Around 1900, fishermen in the Chesapeake Bay area landed more than  [#permalink]

Show Tags

New post 06 Dec 2016, 15:17
I understand why the past perfect "had reduced" is correct here - but how can the simple past tense "blocked" in the relative clause be correct? Doesn't this imply that the sequence of events is: "landings are reduced" followed by "the culverts blocked shad migrations"? But how is this logical? First the migrations are blocked by the culverts and subsequently (or perhaps at the same time) landings are reduced, so the verb tense for "blocked" should either be the same as "reduced" or further in the past then "reduced". Shouldn't the correct use of verb tenses be:
"...the proliferation of milldams and culverts that HAD BLOCKED shad migrations up their spawning streams HAD REDUCED landings to less than four million pounds"

?
Retired Moderator
User avatar
S
Joined: 14 Dec 2013
Posts: 2870
Location: Germany
Schools: German MBA
GMAT 1: 780 Q50 V47
WE: Corporate Finance (Pharmaceuticals and Biotech)
GMAT ToolKit User Reviews Badge
Re: Around 1900, fishermen in the Chesapeake Bay area landed more than  [#permalink]

Show Tags

New post 12 Dec 2016, 08:20
1
natley4788 wrote:
I understand why the past perfect "had reduced" is correct here - but how can the simple past tense "blocked" in the relative clause be correct? Doesn't this imply that the sequence of events is: "landings are reduced" followed by "the culverts blocked shad migrations"? But how is this logical? First the migrations are blocked by the culverts and subsequently (or perhaps at the same time) landings are reduced, so the verb tense for "blocked" should either be the same as "reduced" or further in the past then "reduced". Shouldn't the correct use of verb tenses be:
"...the proliferation of milldams and culverts that HAD BLOCKED shad migrations up their spawning streams HAD REDUCED landings to less than four million pounds"

?


The sequential relation is required to be established between the time reference 1920 and the verb "had reduced". The verb "blocked" is not a part of this relationship - hence past perfect is not to be used for this verb.
VP
VP
User avatar
P
Joined: 27 Mar 2010
Posts: 1379
Location: India
Schools: ISB
GPA: 3.31
Re: Around 1900, fishermen in the Chesapeake Bay area landed more than  [#permalink]

Show Tags

New post 17 Mar 2017, 00:37
natley4788 wrote:
Shouldn't the correct use of verb tenses be:
"...the proliferation of milldams and culverts that HAD BLOCKED shad migrations up their spawning streams HAD REDUCED landings to less than four million pounds"

Hi natley4788, that would not be a great construct. Normally, past perfect is used to depict chronological sequence of two events/instances that happened one after the other in the past. Here however, clearly milldams and culverts were still there in 1920. So, at the very least, had blocked would make the sequence quite cryptic to understand.

Quote:
could another verb tense have been used correctly (i.e. if answer option B was one of the below, would it have been correct?)

Present Simple tense (for an event the recurs) -> "...the proliferation of milldams and culverts that BLOCK shad migrations up their spawning streams HAD REDUCED landings to less than four million pounds"

Present Perfect tense (for an event that occurred in the past and continues to be true) -> "...the proliferation of milldams and culverts that HAVE BLOCKED shad migrations up their spawning streams HAD REDUCED landings to less than four million pounds"

That would be incorrect because the entire sentence talks about events/instances that happened in the past. So, we cannot be using present tense.
_________________
Thanks,
Ashish
EducationAisle, Bangalore

Sentence Correction Nirvana available on Amazon.in and Flipkart

Now! Preview the entire Grammar Section of Sentence Correction Nirvana at pothi.com
Intern
Intern
avatar
B
Joined: 27 Oct 2017
Posts: 6
Re: Around 1900, fishermen in the Chesapeake Bay area landed more than  [#permalink]

Show Tags

New post 27 Dec 2017, 13:32
How is B the right answer??? It uses Past Perfect tense for an event that is happening later in the timeline. Pls help.
e-GMAT Representative
User avatar
P
Joined: 02 Nov 2011
Posts: 2856
Re: Around 1900, fishermen in the Chesapeake Bay area landed more than  [#permalink]

Show Tags

New post 27 Dec 2017, 15:30
1
monidip1010 wrote:
How is B the right answer??? It uses Past Perfect tense for an event that is happening later in the timeline. Pls help.



Hello monidip1010,

I will be glad to help you out with this one. :-)


This official sentence uses the phrase by 1920. Whenever the phrase by 1234 is used in a sentence, it requires the usage of past perfect tense. It is so because the expression denotes that first some other action took place, and then 1234 arrived.

Same is the case with the usage of by 1920 in this official sentence. Presence of this phrase says that over-fishing and the proliferation of milldams and culverts had already reduced the amount of landings by the time 1920 arrived. Hence, use of past perfect tense verb had reduced is correct.


Hope this helps. :-)
Thanks.
Shraddha
_________________
Intern
Intern
avatar
B
Joined: 19 Dec 2017
Posts: 2
Re: Around 1900, fishermen in the Chesapeake Bay area landed more than  [#permalink]

Show Tags

New post 07 Nov 2018, 11:30
1
Around 1900, fishermen in the Chesapeake Bay area landed more than seventeen million pounds of shad in a single year, but by 1920, overfishing and the proliferation of milldams and culverts that have blocked shad migrations up their spawning streams had reduced landings to less than four million pounds.

=> Why " less than" but not " fewer than", as pounds is countable.
Hope someone could help
Thanks
GMAT Club Bot
Re: Around 1900, fishermen in the Chesapeake Bay area landed more than   [#permalink] 07 Nov 2018, 11:30

Go to page    1   2    Next  [ 34 posts ] 

Display posts from previous: Sort by

Around 1900, fishermen in the Chesapeake Bay area landed more than

  new topic post reply Question banks Downloads My Bookmarks Reviews Important topics  





cron

Powered by phpBB © phpBB Group | Emoji artwork provided by EmojiOne