1.      And now that he's well known all over the world, Liu Xiang will also be asked to appear in advertisements and films, and even to record music.

   现在由于刘翔已经世界闻名了,他还会被邀请做广告,拍电影,甚至录唱片.

  now that 常常用为一种新的情况或状况做出解释,表示"既然:由于".如:

Now that Mr has arrived , we can begin our meeting.既然刘先生已经到了,我们就开会吧.