(动词的时态和语态-张磊.docVIP

动词的时态和语态 ? 汉语的时态大多是通过副词来表达的，而英语的时态是靠动词的变化和时间状语来表达的。英语中的时态共有十六种，但是常考的或较常用的只有9种，而且重点测试完成时态。 要掌握英语的时态和语态，必须掌握好英语中的助动词(do, be, have)和时间状语这两个核心问题。 ? 1、一般现在时 主要用来表示人、事物的现在状况和特点；表示经常或习惯性的动作，句子中常有often, always, from time to time 等时间状语； 表示客观规律和永恒真理等。 He usually goes to work at 7 o’clock every morning. She has a brother who lives in New York. The earth goes around the sun. Guangzhou is situated in the south of China. ? 考点一：表示永恒的真理，即使出现在过去的语境中，仍用一般现在时。如： I learned that the earth goes around the sun when I was in primary school. 考点二：在时间和条件状语从句中，代替一般将来时；常用的引导词有： 时间：when, until, after, before, as soon as, once, the moment/the minute, the day; 条件：if, unless, provided. If he accepts the job, he will get more money soon. ? 考点三：在make sure (certain), see to it, mind, care, matter ＋宾语从句， 从句用一般现在时代替一般将来时。 So long as he works hard, I don’t mind when he finishes the experiment. 只要他努力工作， 我不介意他什么时候做完试验。 考点四：在the more… the more … (越……越……) 句型中, 若主句是一般将来时, 从句通常用一般现在时。 The harder you study, the better results you will get. ? 2、现在进行时 表说话时或目前一段时间内正在进行的活动：或表感情色彩，加强语气。与频率副词，如always，constantly，continually，again等连用表示说话人的某种感情色彩（赞叹、厌烦、埋怨等）。 We are having English class. The house is being built these days. The little boy is always making trouble. ? 考点一：在时间状语或条件状语从句中表示将来正在进行的动作。 Look out when you are crossing the street. Dont wake him up if he is still sleeping at 7 tomorrow morning. 考点二： 表示在最近按计划或安排要进行的动作（这时多有表示将来的时间状语）。 Marry is leaving on Friday. ? 3、现在完成时 表示动作发生在过去，完成在过去，但强调与现在情况仍有联系，其结果或影响仍存在。现在完成时有一些标志性的时间状语： 考点一：for + 时间段；since + 时间点 They have lived in Beijing for five years. They have lived in Beijing since 1995. I have learned English for ten years. ? 考点二：常见的不确定的时间状语：lately; recently, just, already, yet, up to now; till now; so far, these days, Has it stopped raining yet? 考点三：在表示“最近几世纪/ 年/ 月以来……”时间状语中，谓语动词用现在完成时。 in the past few years/months/weeks/days；over the past few years; during the last three months; for the last few centuries, through centuries; throughout history 等 ? 考点四：表示“第几次做某事，”或在 “I