另外，表示无法持续动作的动词，一般不宜用于进行时态，但有些可以用于这个时态表示重复、即将等：he is jumping up and down.她一上一下地跳着。
the train is arriving.火车就要进站了。
the old man is dying.老头病危了。
现在进行时有时可用来表示一个在最近按计划或安安排要进行的动作（这是多有一个表示未来时间的状语）：we are leaving on friday. are you going anywhere tomorrow？
a foreign guest is giving a lecture in english this afternoon. xiao hong！coming. who is interpreting for you？
we are having a holiday next monday.但这仅限于少量动词，如go，come，leave，start，arrive，lunch，return，dine，work，sleep，stay，play，do，have，wear等。
另外，“be going+不定式”这个结构经常用来表示即将发生的事或打算（准备）做的事：i am afraid it is going to rain. it is going to be rather cold tomorrow. she is not going to speak at the meeting.在这个结构中过去有许多人不赞成用go和come这两个动词，感到很别扭，主张不说are you going to go anywhere tomorrow？而说are you going anywhere tomorrow？不说is she going to come？而说is she coming？但现在在这种结构中用两个动词的人越来越多，这种用法基本上被大家接受了。
此外，在时间和条件状语从句中，间或也可用现在进行时表示将来的情况或一般情况：do not mention this when you are talking with him. remember that when you are taking a rest，some else is always working. if she is still sleeping，do not wake her up.现在进行时有时用来代替一般现在时，表示一个经常性动作或状态，这是或是为了表示一种感情（a）如赞叹、厌烦等，或是为了强调情况的暂时性（b）。
a. how are you feeling today？（比how do you feel today？更显亲切）
xiao hua is doing fine work at school.（比xiao hua does fine work at school.更富赞美）
he is always thinking of his work.表赞许he is constantly leaving his thing about.她老是乱扔东西。（表不满）
he is always boasting.他老爱说大话。（表厌烦）
b.he is sleeping in the next room now.他现在现在是在隔壁房间睡了（不再原来房间睡了）。
the professor is typing his own letters while his secretary is ill. where is he working？他现在在那里工作？（可能刚换工作）
for this week we are starting work at 7：30. he is walking to work because his bicycle is being repaired. be间或可用于进行时态，表示一时的表现：you are not being modest. he is being silly. she is being friendly. xiao hong is being a good girl today. do not talk rot.i am being serious.注： 在there和here引起的句子中，常可用一般现在时代替现在进行时：here comes the bus.（=the bus is coming.）
there goes the bell. （=the bell is ringing.）
在某些情况下两种情况都可以用，没有多少差别：i wonder （am wondering） how i should answer then. does your leg hurt？ （is your leg hurting？）
it itches （is itching） terribly. my back aches （is aching）。
i write （am writing ） to inform you.
未完待续……
（发帖时间：2004-01-06 19：51：16）
——3dnow「外语学习成员」
三、 一般将来时一般将来时由助动词shall或will加动词原型构成，shall用于第一人称，will用于第二、三人称。这个时态的肯定、否定及疑问机构可表示如下：i shall go. i shall not go. shall i go？
除英国以外的说英语的国家，在陈述句中，即使在第一人称一般也用will，在英国也有这种趋势，在口语中常紧缩为i'll.一般将来时表示将要发生的动作和情况：i will （shall） arrive tomorrow. will you be busy tonight？
the agreement will come into force next spring. we won't （shan't） be free tonight.有时表示将来的时间状语，有时没有时间状语，这时要从意思上判断是否指未来的动作或情况：i will think it over. who will take the chair？
