4.否定形式：am/is/are+not;此时态的谓语动词若为行为动词，则在其前加don't,如主语为第三人称单数，则用doesn't，同时还原行为动词。 5.一般疑问句：把be动词放于句首；用助动词do提问，如主语为第三人称单数，则用does，同时，还原行为动词。 6.例句：....
在时间状语从句中，when可与非延续性动词或延续性动词搭配，如"When we reached London"，而while则要求与延续性动词配合，如"While we are away, please look after my daughter"。总的来说，理解并正确运用延续性和非延续性动词是英语语法学习中的重要部分，它们在表达动作的持续性和瞬间性上起着...
2).与时间段连用时，短暂性动词应改为相应的延续性动词。Come/go to --- be at /in leave ---be away from buy ---have borrow /lend ---keep open ---be open close---be closed die--- be dead start/begin ---be on join—--be in /be a member of /...
①瞬间动词用于“一段时间 + ago”的一般过去时的句型中；②瞬间动词可改成与之相对应的延续性动词及短语，与一段时间连用；③瞬间动词用于“It is + 一段时间 + since + 一般过去时”的句型，请看：A. He joined the League two years ago. B. He has been in the League for two years....
help（帮助）后作宾补的动词不定式可带to，也可不带to. 即help sb.(to)do sth.定语：不定式位于所修饰的名词，代词之后，如：Who was the first one to set to the top of the hill yesterday? /He is the man to depend on/to believe in.6）状语： in order to A．目的状语：She ...
6、 过去进行时动词常与always, forever, continually, constantly, frequently等副词连用,代替一般过去时,强调表示过去经常性或习惯性动作,表示出说话人的赞美、厌烦等情绪。 He was constantly leaving his things everywhere. 他老是把东西乱丢。 It was raining frequently here. 这里老是下雨。 7、 动词hope, ...
B) 因为含有for加一段时间或since加一个时间点这样的时间状语的完成时,有动态和延续性的特点,所以不能使用终端动词或瞬间动词。 例:My sister has been married for 5 years.(过去分词做表语表示状态,可以延续) My sister has married. Don't disturb her.(终端动词)C) 在"this is the first/ second/ ...
Mary has been ill for three days.I have lived here since 1998.注（超重要）：瞬间动词（buy,die,join,lose……）不能直接与for since 连用。要改变动词 2 如单纯表示一段时间，或强调一段时间，虽有since一词，也不必用完成时。如：It is two years since his father died. =His father ...
(turn out表终止性结果)英语系动词的功能主要是把表语(名词、形容词、某些副词、非谓词、介词短语、...4.瞬间动态系动词能否与时间段连用的问题英语中某些表示瞬间意义的系动词不能与“for+时间段,since+...6.能用两种否定形式的系动词有两个:seem, appear.举例说明:It doesn’t seem that we can get ...
(一般疑问句)Do+主语+动词+其他？ Does+三单主语+动词+其他？（回答）Yes, 主语+do. Yes, 三单主语+does No,主语+don’t. . No, 三单主语+doesn’t 6 例句 They like apples. She likes apples.They don’t like apples. She doesn’t like apples.Do they like app...