Answer:
written and spoken language are different
Step-by-step explanation:
Written and spoken language differ widely. Only some forms of writing are closer to speech. .During writing, the punctuation and layout of written texts often have no spoken equivalence. Technology is chaning this as, some forms of written language, like SMS instant messages and email, are getting closer to spoken language. (Think of the use of emoticons)
Still, written language will be more formal and follow the rules of the Grammar & Structures of any language. Spoken language will happen to be casual. While written words appeals more to a contemplative, deliberative style. Speeches can also be precise and indeed practice makes perfect.
People trained in speech or writing will communicate much more effectively.