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Canadian scientists have calculated that one human being should be

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Re: Canadian scientists have calculated that one human being should be [#permalink]

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New post 26 Sep 2017, 02:50
1
TheRzS wrote:
Could I please request a clarification?

- Can "should" be used to convey probability?
- Can "will" be used to convey probability? Or, in this context "will" is used to convey certainty?

What does, in fact, separate D from E?

Best
RzS



Hello TheRzS,

Since you have a couple of doubts, I would just like to add my two cents here. :-)


Quote:
- Can "should" be used to convey probability?


The answer is no. The word should is used to present obligation.



Quote:
- Can "will" be used to convey probability? Or, in this context "will" is used to convey certainty?


It is true that the helping verb will is generally used to present an action that is going to happen for sure. However, verb tenses are the trickiest part of the grammar. Their correct usage is completely governed by the context of the sentence.

Per the context of the sentence, it is easy to understand that the author wants to present probability. It is not that we see humans getting hit by a meteor as general occurrence. So yes, per the context of this official sentence, usage of will basically shows a calculation.


Now let's talk about the difference between Choices D and E.

(D) every nine years a human being will be struck by a meteorite: Correct: As explained, will has been used to present a calculation.


(E) every nine years a human being should be struck by a meteorite: Incorrect: Usage of should suggests that a person must for sure be struck by a meteorite as if it is the duty/obligation of a man to be struck by a meteorite.


Hope this helps. :-)
Thanks.
Shraddha
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Re: Canadian scientists have calculated that one human being should be   [#permalink] 26 Sep 2017, 02:50

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