一般将来时表示将来某个时间要发生的动作或者存在的状态。通常与表示将来的时间状语连用,如tomorrow, the day after tomorrow, next year, next month, next week, in 100 years等。
  be going to do (动词原形)结构:表示打算、准备做的事情或者肯定要发生的事情
     如:It is going to rain.
  will do 结构表示将来的用法:
  1. 表示预见
  Do you think it will rain? 
  You will feel better after a good rest. 
  2. 表示意图 
  I will borrow a book from our school library tomorrow.
  What will she do tomorrow?
 基本构成如下:
  一般疑问句构成:
  (1)will+主语+do…? Will Sarah come to visit me next Sunday?
  (2)there be 结构的一般疑问句:Will there + be …?
  Will there be fewer trees? Yes, there will. / No, there won’t
  否定句构成:will + not (won’t)+do
  Sarah won’t come to visit me next Sunday.
     特殊疑问句构成:
   特殊疑问词+will+主语+…?What will Sarah do next Sunday?