准确理解两种时态的主要含义:一般现在时1.表示事物的本质特性或客观存在，没有时限性。  The table ____ soft。(feels) 表特性特征。  Japan ___ in the east of China。 (lives) 表客观事实2.现阶段经常性、习惯性的行为，可带频率时间。  The shop closes at 7:30 p.m.  Father doesn't smoke. (习惯)3.表说话时的状态，感觉或结果，一般用状态动词，  It doesn't matter. Does it hurt? (感觉结果)4.特殊用法:-在条件、时间下、在让步从句中用现在时代替将来。-If you go there,I'll help you.-用在begin,come,go,leave,return,open,close 等短暂谓语动词表规定计划。The plane takes off at 11:30. (不受主观支配的计划)-在剧本、解说、标题或there(here)开头的句中表进行There goes the bell/Here comes Mr.Wang.I declare the meeting opens.(正在宣布)He meets the ball and hits back to No.2 (正在发生)现在进行时1.说话时正在发生，进行的动作  Look! Dark clouds are gathering . (正在发生)2.表现阶段正在进行，但此刻不一定正在进行的事。  He usually gets up at 6:00,but this week he is getting up at 7:00. (现阶段正在进行，但说话时不一定在起床)3.现在进行时的特殊意义-表示主观打算常用于 go,come,leave,start,begin 等，位移、趋向动词。  How long are you staying here (准备停留)-表示眼前刚过去的语意即"话音刚落"，适用于tell,say,talk,discuss ….  You don't believe it You know I'm telling the truth.-表示安慰、关心、喜欢、讨厌等感情色彩。  He is always making noises in class. (讨厌)-在条件、时间、让步状语从句中表示将来正在进行。  Don't bother him if he is reading this time tomorrow.