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课件网) 中考英语语法专题讲解———时态 英语中一共有16种时态，初中阶段要求掌握下列八种时态： 1、一般现在时：do/does 2、一般过去时：did 3、一般将来时：will/be going to do 4、现在进行时：am/is/are/ doing 5、现在完成时：have/has done 6、过去进行时：was/were doing 7、过去完成时：had done 8、过去将来时：would/was going to do ①表示经常性或者习惯性发生的动作或存在的状态。 I often take a bus to school. ②表示客观事实或者客观真理。 The earth is round. Light travels faster than sound. ③当主句为一般将来时时，在以if, as soon as, until, when等引导的时间、条件状语从句中用一般现在时表示将来。 When I grow up, I will go to America. If it doesn’t rain tomorrow, we will go to the zoo. ④与一般现在时连用的时间状语有：always, usually, often, sometimes, on Sundays, every day, every morning, once a year等。 ①表示过去发生的动作或者存在的状态。 We visited a farm last Sunday. When I was in the countryside, I used to swim in the river. ②表示过去的习惯或者经常发生的动作。 When I was in the countryside, I used to swim in the river. ③与一般过去时连用的时间状语有：yesterday, last night, last week, three days ago, in 1990, in the past, just now, the other day, at that time。 ①表示将来发生的动作或者存在的状态，结构为：will/shall+动词原形，will用于所有人称，shall只用于第一人称表示征求对方意见。 Will you be back in two days? Where shall we meet tomorrow? 注意：“will+动词原形”还可以表示愿意做某事或者客观性的将来。 We will help him if he asks us. The sun will rise at 6:00 tomorrow morning. ②“be going to+动词原形”表示计划、打算要做某事或者按照客观迹象表明要发生的事情。 What are you going to do next Sunday? Look at the clouds. It is going to rain. ③ 常与一般将来时连用的时间状语有：tomorrow, next week, in a few days等。 ①表示现在或者现阶段正在进行的动作或持续的状态。 They are singing in the next room now. The students are working on the farm these days. ②现在进行时表示将来的动作，这种结构的动词有：go, come, start, begin, arrive, leave等，表示即将发生的动作或者安排好要做的事情。 We are leaving for Shanghai. The bus is coming soon. ③ 常与现在进行时连用的时间状语和标志词有：now, these days, look, listen等。 ①表示发生在过去的或已经完成的对现在仍有影响的动作。 I have lost my key. I have already seen the film. ②表示一个动作或者状态发生在过去，并持续到现在，可能还要持续下去，常和“for+时间段”或者“since+时间点/从句”连用，这时只能用延续性动词。 Mr. Zhang has taught English for 20 years. ③几个副词在现在完成时中的用法 just意为“刚刚”，表示动作刚刚结束，常放在助动词与过去分词之间。 He has just come back from America. ever意为“曾经”，用于疑问句和否定句中，放在助动词和过去分词之间。 Have you ever been to London? never意为“从来没有”，常与before连用，放在助动词和过去分词之间。 I have never been to Beijing before. before意为“以前”，指过去不确定的某个时候，总放在句末。 I have never heard of this singer before. ④延续性动词和非延续性动词在现在完成时中的用法 现在完成时可表示动作从过去某个时候开始一直持续到现在，与一段时间 ... ...
