摘要： From the story we can learn that . A. famous players like Allen Iverson lead the fashion B. most NBA players are opposed to the new dress code C. even some coaches find the new rule hard to accept D. the new dress code only covers certain occasions C We certainly know that our universe exists, but this knowledge alone has not satisfied human’s long search for further understanding. Our curiosity has led us to question our place in this universe and even the place of the universe itself. Throughout time we have asked ourselves these questions: How did our universe begin? How old is our universe? How did matter come to exist? Obviously, these are not simple questions. Throughout our brief history on this planet much time and effort has been spent looking for some clue . Yet, after all this energy has been used up, much of what we know is still only speculation . However, we have come a long way from the beginnings of the study of cosmology and the origins of the universe. Through the understandings of modern science, we have been able to provide firm theories for some of the answers that we once called speculation. True to the nature of science, most of these answers have only led to more interesting and complex questions. It will be impossible to deal with all of the questions about the creation of everything that we know as reality in this short passage, but an attempt will be made to deal with certain basic questions of our being. It will be important to keep in mind that all of this information is often being questioned and reevaluated in order to understand the universe more clearly. For our purposes, through an examination of what is known about the Big Bang itself and the age of the universe, we believe that we can begin to answer several of these key questions.

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