2023初三英语之动词的时态基本框架

栏目:基础教育  时间:2023-04-25
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  常见六种时态的构成及用法

  (1)一般现在时

  用法:①现在经常性的状态或动作;②客观事实和真理。

  构成:①be+表语;②实义动词作谓语

  标志词:often, sometimes, usually, always, never, twice a month, every day/week/month/year(every系列)

  例句:He usually gets to school early.他通常很早到校。

  The moon moves around the earth.月亮绕着地球转。

  练一练

  1.认识从实践开始

  Knowledge practice.

  2.如果明天下雨,我们就不去公园了。

  If it tomorrow,we to the park.

  【答案】

  1. begins with.

  2.rains,won’t go

  (2)一般过去时

  用法:表示过去的动作或状态。

  构成:

  ①was/were+表语;

  ②实义动词作谓语

  标志词:a moment ago,just now,ago, yesterday, last night/week/month(last系列)

  例句:We went to Yunnan last Monday.上周一我们去了云南。

  1.She (not visit)her aunt last weekend.

  2.My friend,Lucy, (study)for the math test and (practice)English last night.

  【答案】1.didn’t visit

  2.studied practiced

  (3)一般将来时

  用法:表示将来的动作或状态。

  构成:①will/shall+动词原形;

  ②am/is/are going to+动词原形 标志词:tonight, tomorrow, from now on, soon, in the future, next year(next系列) 例句:The twins will go to the cinema with their parents tonight. 这对双胞胎今晚将和他们的父母一起去看电影。

  注意:在时间和条件状语从句中,用一般现在时代替一般将来时。

  练一练

  1.Mary’s birthday is on next Monday.Her mother (give)her a present.

  2.It is very cold these days.It (snow)soon.

  【答案】

  1. will give

  2. is going to snow

  (4)现在进行时

  用法:

  ①此刻动作:表示目前正在发生的动作。

  ②现阶段动作:表示目前一个时期一直在进行的动作,此刻不一定在进行。

  构成:am/is/are+动词的现在分词标志词:am/is/are+动词的现在分词;now, at present, at the moment, these days, look, listen

  例句:Look! What are the children doing over there?

  看,孩子们在那边做什么呢?

  注意:表示位置移动或状态转移的动词(come ,go, leave, arrive)等少数动词的现在进行时形式可表示将要发生的动作。

  练一练

  1.—Where is your father?—He (fish)by the lake.

  2.It’s 8 o’clock.The children (do)morning exercises.

  【答案】

  1. is fishing

  2. are doing

  (5)过去进行时

  用法:过去某时正在进行的动作。

  构成:was/were+动词的现在分词

  标志词:at that time, this time yesterday, at 1:00 last night,at that moment, then, when表示过去时间的状语从句

  例句:I was reading when he came in.当他进来的时候,我正在读书。注意:在复合句中,如果两个动作同时发生,那么延续性动词用过去进行时;短暂性动词用一般过去时。通常在when或while引导的时间状语从句中出现。

  —What were you doing at nine last night?

  —昨天晚上九点你正在干什么?

  练一练

  1.当我进来时,他正在读书。

  2.你写信的时候,我在看书

  【答案】

  1.He was reading when I came in.

  2.While you were writing letters,I was reading a book.

  (6)现在完成时

  用法:

  ①到现在为止已经完成的动作,对现在还有影响。 ②从过去开始延续到现在的动作或状态。

  构成:have/has+动词的过去分词

  标志词:yet, still, just, so far, before, recently, once, already, lately, ever, never, since 1996, in Kunming,last/past, for ten years (for系列)

  例句:He has only been to Kunming once.他只去过昆明一次。

  I have been in the Youth Volunteers for five years.我来到青年志愿者队已经五年了。

  注意: since后面的从句用一般过去时,主句用现在完成时;短暂性动词不与一段时间连用。如果要与一段时间连用必须换成延续性动词。

  非延续性动词

  延续性动词

  buy

  have

  borrow

  keep

  open

  be open

  close

  be closed

  begin/start

  be on

  come

  be here

  go

  be there

  finish

  be over

  die

  be dead

  catch a cold

  have a cold

  put on

  wear

  wake up

  be awake

  fall asleep

  be asleep

  lose

  not have

  join

  be in

  leave

  be away

  arrive/reach

  be

  提示:

  have been to, have gone to和have been in的区别have been to

  曾经去过某地(现在已经回来了),常与just, ever, never等副词连用。have gone to 去了某地(现在还没有回来),表示说话时某人已不在现场,可能在去的途中,也可能已经到达目的地。

  have been in

  已经在某地,表示状态,后面常接表示“时间段”的状语。

  练一练

  1.你已经看过这部电影了吗?

  2.我已经买这本词典三年了。

  【答案】

  1.Have you seen this film yet?

  2.I have had this dictionary for 3 years.

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