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    • Join Date: Feb 2009
    • Posts: 88
    #1

    Exclamation as ~ , so ...

    Hello there.

    Is this sentence grammatically correct?


    As lungs are to animal, so leaves are to plants.



    I do not get this structure.
    Please help me!


    • Join Date: Mar 2009
    • Posts: 248
    #2

    Re: as ~ , so ...

    Quote Originally Posted by gchman View Post
    Hello there.

    Is this sentence grammatically correct?


    As lungs are to animal, so leaves are to plants.



    I do not get this structure.
    Please help me!
    Yes, it's grammatical. It means that leaves are as important to plant life as lungs are to animal life.

    • Member Info
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    • Join Date: Oct 2008
    • Posts: 907
    #3

    Re: as ~ , so ...

    Dear gchman:

    Quote Originally Posted by gchman View Post
    Hello there.

    Is this sentence grammatically correct?


    As lungs are to animals, so leaves are to plants.

    As (In the same way as) lungs are to animals, leaves are to plants.

    The structure is a form of analogy:

    [A] is related to [B] in the same way that [C] is related to [D].

    In the case of your example, lungs and leaves are each a part of a larger system (respiration), and serve a similar function in their respective organisms (animals and plants).

    Lungs are part of many animals' respiratory systems; leaves are part of many plants' respiratory systems.

    Another example:

    As [in the same way as] joy is to sorrow, so day is to night.

    In this case the examples are opposites (joy-sorrow; night-day).

    I do not get this structure.
    Please help me!
    I hope this is helpful. Please let us know if you would like more examples.

    Petra

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