Realmente, Juliana, "beg" pode implicar, também, urgência.
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Synonyms: beg, crave, beseech, implore, entreat, importune
These verbs mean to make an earnest request. Beg and crave mean to ask in a serious and sometimes humble manner, especially for something one cannot claim as a right: I begged her to forgive me. The attorney craved the court's indulgence.
Beseech emphasizes earnestness and often implies anxiety: Be silent, we beseech you.
Implore intensifies the sense of urgency and anxiety: The child implored his father not to be angry.
Entreat pertains to persuasive pleading: "Ask me no questions, I entreat you" (Charles Dickens).
Importune adds the sense of persistent and sometimes irksome pleading: The foundation was importuned by fundraisers. See Also Synonyms at cadge.http://www.thefreedictionary.com/beg