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【语法词汇】千万记住,不能错过哦!

发布者: 千缘 | 发布时间: 2019-1-16 22:50| 查看数: 299| 评论数: 0|

一般现在时代替过去时

  1 ) 书上说 , 报纸上说 等。

  The newspaper says that it s going to be cold tomorrow.

  报纸上说明天会很冷的。

  2) 叙述往事,使其生动。

  Napoleon s army now advances and the great battle begins.

用现在进行时表示将来

  意为: 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?

用一般过去时代替完成时

  1) 两个动作如按顺序发生,又不强调先后,或用then,and,but 等连词时,多用一般过去时。

  When she saw the mouse,she screamed.

  My aunt gave me a hat and I lost it.

  2 ) 两个动作相继发生,可用一般过去时;如第一个动作需要若干时间完成,用过去完成时。

  When I heard the news, I was very excited.

  3) 叙述历史事实,可不用过去完成时,而只用一般过去时。

  Our teacher told us that Columbus discovered America in 1492.

一般现在时代替将来时

 时间状语从句,条件句中,从句用一般现在时代替将来时

  When, while, before, after, till, once, as soon as, so long as, by the time, if, in case , unless, even if, whether, the moment, the minute, the day, the year, immediately

  He is going to visit her aunt the day he arrives in Beijing. 他一到北京,就去看他姨妈。

  典型例题

  He said he________me a present unless I_______ in doing the experiment.

  A. had not given; had not succeeded B. would not give; succeed

  C. will not give; succeed D. would not give; will succeed.

  答案B. 在时间,条件或让步主语从句中一般不用将来时。本题有He said,故为过去式。主句用将来时,故选B. 此处用一般过去式代替了过去将来时。

  表示现在已安排好的未来事项,行程等活动。

  The museum opens at ten tomorrow. 博物馆明天10点开门。

现在进行时代替将来时

  1) 表示即将发生的或预定中计划好的活动。

  Are you staying with us this weekend? 这周和我们一起度周末吗?

  We are leaving soon. 我们马上就走。

  2) 渐变动词,如:get, run, grow, become, begin及die。

  He is dying.

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