中考复习考点之八种时态-仁爱英语(共4页).doc

精选优质文档-倾情为你奉上考点之时态1 一般现在时经常性或习惯性的动作，常与表示频腮度的时间状语连用。时间状语： every, sometimes,at, on SundayI leave home for school at 7 every morning.2) 客观真理，客观存在，科学事实。 The earth moves around the sun.3) 表示格言或警句中。 Pride goes before a fall.骄者必败。4) 现在时刻的状态、能力、性格、个性。 Ann Wang writes good English but does not speak well考点此用法如果出现在宾语从句中，即使主句是过去时，从句谓语也要用一般现在时。例：Columbus proved that the earth is round.2 一般过去时1）在确定的过去时间里所发生的动作或存在的状态。 时间状语有：yesterday, last week, an hour ago, the other day, in 1982等。 Where did you go just now?2）表示在过去一段时间内，经常性或习惯性的动作。 When I was a child, I often played football in the street.3一般将来时1) will 在陈述句中用于各人称，在争求意见时常用于第二人称。Which paragraph shall I read first.Will you be at home at seven this evening?2)be going to +不定式，表示将来。a. 主语的意图，即将做某事。 What are you going to do tomorrow?b. 计划，安排要发生的事。 The play is going to be produced next month。c. 有迹象要发生的事 Look at the dark clouds, there is going to be a storm.考点用现在进行时表示将来意为：a) "意图"、"打算"、"安排"、常用于人。常用词为 come, go, start, arrive, leave, stay等。I'm leaving tomorrow.Are you staying here till next week?b）在时间或条件句中。一般现在时表将来When Bill comes (不是will come), ask him to wait for me.I'll write to you as soon as I arrive there.4一般过去将来时过去将来时表示从过去的某一来看将来要发生的或存在的。过去将来时常用于和中。结构：would +do sth was/were going to do sthI didnt know if he would come. =I didnt know if he was going to come.5现在完成时现在完成时用来表示之前已发生或完成的动作或状态，其结果的确和现在有联系。动作或状态发生在过去但它的影响现在还存在；也可表示持续到现在的动作或状态。其构成： have (has) +过去分词。现在完成时的时间状语for, since, so far, ever, never, just, yet, till / until, up to now, in past years, always,I have seen this film.He has been a League member for three years.比较since和forSince 用来说明动作起始时间，后跟时间点，或从句，但时态必须是一般过去时；for用来说明动作延续时间长度，后跟时间段。特别注意；两者的谓语必须是持续性动词。I have lived here for more than twenty years.I have lived here since I was born.My aunt has worked in this factory since 1949. 考点1，since的四种用法1) since +过去一个时间点(如具体的年、月、日期、钟点、1980, last month, half past six)。 I have been here since 1989.2) since +一段时间+ agoI have been here since five months ago.3) since +从句Great changes have taken place since you left.Considerable time has elapsed since we have been here.4) It is +一段时间+ since从句It is two years since I became a postgraduate student.2,延续性动词与非延续性动词及其转换1）  延续性动词表示能够延续的动作,如：learn, work, stand, lie, know, walk, keep, have, wait, watch, sing, read, sleep, live, stay等。延续性动词可以与表示时间段的状语连用。3）延续性动词与非延续性动词之间的转换：leave be away (from), borrow - keep, die be dead， buy - have,   begin/start - be on,   die - be dead,  finish - be over,  join - be in+组织机构/ be a member of+组织机构,  get to know know, open sth - keep sth open,  fall ill -  be ill,  get up-be up,   catch a cold - have a cold,  come here - be here, go there -be there,   become - be,   come back - be back,  fall asleep - be asleep,  get to/ arrive/reach - be (in),  go (get) out be out，  put on wear；catch a cold have a cold, 例:1，The old man died 4 years ago.  -The old man has been dead for 4 years.    - It is 4 years since the old man died.  -Four years has passed since the old man died.       2，He joined the Party 2 years ago.   -He has been in the Party for 2 years.    3，I bought the book 5 days ago.  - I have had the book for 5 days.3) has/have gone to 到地方去了，人不在has/have been to 去过地方，人以回来Where is Jim? He has gone to Wuhan.Jim has been to Wuhan twice.6过去完成时概念：表示过去的过去构成是had +过去分词构成在told, said, knew, heard, thought等动词后的宾语从句。She said (that) she had never been to Paris.7现在进行时表示现在( 指说话人说话时) 正在发生的事情。结构：be + v.ing标志：now, listen, look, at the momentWe are waiting for you.8过去进行时概念：表示过去某时正在进行的状态或动作结构：was/were + v.ing He was watching TV at eight Oclock last night.考点 when，while “当时候”用法。a) 在when引导的时间状语从句中，其谓语动词可以是延续性的，也可以是非延续性的，可与主句中的谓语动词同时发生，也可在其后发生。例如：1、I was just reading a book when she came into my room. 她走进我房间时，我正在看书。 2、Were you writing when the teacher came in? 老师进来的时候，你在写信吗？ b) while只能表示某一段时间，不能表示某一点时间。在while引导的时间状语从句中，其谓语动词只能是延续性的，而且也只能与主句中的谓语动词同时发生或存在。例如： 1、While Jim was mending his bike, Lin Tao came to see him. 正当吉姆修自行车时，林涛来看他。      2、You cant do your homework while youre watching TV. 你不能一边看电视一边做家庭作业。 专心-专注-专业