英语主要时态总结.doc

Tenses 时态 1, present simple 一般现在时 A, structure 结构: V---动词原形 Vs---第三人称单数 B, use a, a fact that is always true or that is true for a long time eg. I come from China. She works for a big company. b, a habit: every, often, usually, always, sometimes, never… eg. My father always goes to work by car. C, negative: don’t / doesn’t + V D, questions: Do / Does + 主语+ V 2, present continuous A, structure: am/is/are+ V-ing B, use a, sth. in progress now: now, at the moment, today eg. We are having an English class now. b, a future arrangement: this evening, tonight, tomorrow, next… eg. She is playing tennis with her friends this afternoon. C, negative: be + not D, question: be 提到主语之前 3, present perfect A, structure: have / has + p.p B, use a, an experience in life: ever, never, all one’s life eg. Have you ever been abroad? b, a past action continues to now: for, since, recently, so far, for the past two weeks…how long eg. I have worked in this company since I graduated from university. c, a past action with a result now: just, already, yet eg. She has already done the washing up. C, negative: have / has + not D, question: Have / Has 提前 ※no definite time in this tense现在完成时没有确定的时间 4, present perfect continuous A, structure: have / has + been + V-ing B, use a, a past action continues to now eg. I have been waiting for you for ages！ b, a past action with a result now eg. My back aches because I have been working in the garden all day. I’m hot because I have been running. My eyes are red because I have been reading all day. I’m wet because I have been washing my dog. C, negative: have/has + not D, question: have/has提前 E, the differences between the present perfect simple and the present perfect continuous a, to emphasize the result, we use the present perfect simple强调结果，用一般的现在完成时。 to emphasize the activity, we use the present perfect continuous强调动作，用现在完成进行时。 b, the results are different: for the direct results of the activity, we use the simple, for the indirect ones