用一个简单的例子让你掌握英语时态用法.docVIP

用一个简单的例子让你掌握英语时态用法 1.一般现在时(表示经常发生的动作或存在的状态、表示客观真理和普遍真理、表示主语的特征和状况)。?I?always?play?football.?I?often?play?football.?I?usually?play?football.?I?play?football?sometimes.?I?never?play?football.?I?play?football?every?day.?I?play?football?once?a?week.?2.现在进行时（表示现在或现在这一阶段正在进行的动作）?I?am?playing?football?now.?I?am?playing?football?at?4:30?pm.?I?am?playing?football?at?this?moment.?3.现在完成时（表示过去发生的动作对现在产生的影响或结果、表示从过去一直延续到现在的动作或状态）?I?have?already?played?football.?I?haven’t?played?football?yet.?I?have?never?played?football?before.?I?have?played?football?before.?I?have?played?football?for?three?hours.?I?have?played?football?since?I?was?ten?years?old.(主句用的是现在完成时，since引导的时间状语从句用的是一般过去时)?I?have?played?football?since?I?came?here.（同上）?I?have?played?football?sine?2003.(自从过去某个具体时间以来)?I?have?played?football?since?two?years?ago.?(自从过去某个具体时间以来)?I?have?played?football?in?the?last?fews?years.(最近几年中)?I?have?played?football?recently.(近来)?I?have?played?football?lately.（同上）?4.现在完成进行时（表示动作从过去某一时间开始一直持续到现在，并且预期还要继续进行下去）?I?have?been?playing?football?for?three?hours.(我已经踢了3个小时足球了，我现在仍然在踢着足球，而且我还要继续踢下去)?I?have?been?playing?football?since?this?morning.(从过去的某一具体时刻开始，直到现在，我都在踢足球，而且现在还没有终止，要继续踢下去)?I?have?been?playing?football?since?I?went?to?school.?(自从我上学以来，我就一直在踢足球，直到现在，我仍然在踢足球，而且要继续踢下去)?I?have?been?playing?football?recently.(近来我一直在踢足球，而且还会继续踢下去)?I?have?been?playing?football?this?morning.?(今天上午以来我一直在踢足球，并会继续下去)?5.一般过去时（表示过去某一时间发生的动作或存在的状态、表示过去经常发生的动作或存在的状态）?I?played?football?yesterday.?(表示过去的具体时间)?I?played?football?last?night.?（同上）?I?played?football?just?now.(?刚才我在踢足球)?I?played?football?in?2003.?(在2003年我踢过足球)?I?played?football?two?years?ago.(两年前我踢过足球。ago是典型的表示过去某一时刻的时间状语。只要主句中出现ago这个词，就必须用一般过去式。刚才在现在完成时中举的例子I?have?played?football?since?two?years?ago.的意思是“自从两年前我开始踢足球，一直踢到现在”，用现在完成时来说明现在的状态是仍然在踢足球，since这个词可以引导一个表示过去的具体时间来做时间状语。而过去时I?played?football?two?years?ago.的意思是“两年前我踢过足球”只说明过去的动作，和现在的状态是不是在踢足球没有关系，没有用since这个完成时的引导词，完全表示过去发生的动作，所以ago出现在句末而前边又没有since这种完成时的引导词的句子一定要用一般