英語中常見的八種基本時態(tài)

1、英語中常見的八種基本時態(tài)一、一般現(xiàn)在時：1 .概念：經(jīng)常、反復(fù)發(fā)生的 動作或行為及現(xiàn)在的某種狀況。2 .時間狀語：always, usually, often, sometimes, every week (day, year, month), once a week,on Sundays,3 .基本結(jié)構(gòu)：動詞 原形(如主語為第三人稱單數(shù)，動詞上要加(e) S)4 .否定形式：am/is/are+not; 此時態(tài)的謂語動詞若為行為動詞，則在其前加don't,如主語為第三人稱 單數(shù)，則用doesn't ,同時還原行為動詞。5 .一般疑問句：把be動詞放于句首；用助動詞do提問，如

2、主語為第三人稱單數(shù)，則用does ,同時,還原行為動詞。6 .例句：.It seldom snows here.He is always ready to help others.Action speaks louder than words.一般過去時:1 .概念：過去某個時間里發(fā)生的動作或狀態(tài)；過去習(xí)慣性、經(jīng)常性的動作、行為。)in 1989,2 .時間狀語：ago, yesterday, the day before yesterday, last week(year, night, month just now, at the age of 5, one day, long long

3、ago, once upon a time, etc.3 .基本結(jié)構(gòu)：be動詞；行為動詞4 .否定形式：was/were+not;在行為動詞前加didn't ,同時還原行為動詞。5 .一般疑問句：was或were放于句首；用助動詞do的過去式did提問，同時還原行為動詞。6 .例句：She often came to help us in those days.I didn't know you were so busy.三、現(xiàn)在進(jìn)行時:1 .概念：表示現(xiàn)階段或說話時正在進(jìn)行的動作及行為2 .時間狀語：now, at this time, these days, etc.3 .

4、基本結(jié)構(gòu)：am/is/are+doing4 .否定形式：am/is/are+not+doing.5 .一般疑問句：把be動詞放于句首。6 .例句：How are you feeling today?He is doing well in his lessons.四、過去進(jìn)行時：1 .概念：表示過去某段時間或某一時刻正在發(fā)生或進(jìn)行的行為或動作。2 .時間狀語：at this time yesterday, at that time 或以when引導(dǎo)的謂語動詞是一般過去時的時間 狀語等。3 .基本結(jié)構(gòu)：was/were+doing4 .否定形式： was/were + not + doing.5

5、.一般疑問句：把 was或were放于句首6 .例句： At that time she was working in a PLA unit.When he came in, I was reading a newspaper.五、現(xiàn)在完成時：1 .概念：過去發(fā)生或已經(jīng)完成的動作對現(xiàn)在造成的影響或結(jié)果，或從過去已經(jīng)開始，持續(xù)到現(xiàn)在的動 作或狀態(tài)。2 .時間狀語：recently, lately, since for -,in the past few years, etc.3 .基本結(jié)構(gòu)：have/has + done4 .否定形式：have/has + not +d one.5 .一般疑問句

6、：have或has。6 .例句：I've written an article.It has been raining these days.六、過去完成時：1 .概念：以過去某個時間為標(biāo)準(zhǔn)，在此 以前發(fā)生的動作或行為，或在過去某動作之前完成的行為，即 “過去的過去”。2 .時間狀語： before, by the end of last year(term, month),etc.3 .基本結(jié)構(gòu)：had + done.4 .否定形式：had + not + done.5 .一般疑問句：had放于句首。6 .例句： As soon as we got to the station, t

7、he train had left.By the end of last month. We had reviewed four books七、一般將來時：1.概念：表示將要發(fā)生的動作或存在的狀態(tài)及打算、計劃或準(zhǔn)備做某事2.時間狀語：tomorrow, next day(week, month, year),soon, in a few minutes, by,the dayafter tomorrow, etc.3 .基本結(jié)構(gòu)：am/is/are/going to + do ； will/shall + do.4 .否定形式：was/were + not;在行為動詞前加didn't

8、,同時還原行為動詞5 .一般疑問句：be放于句首；will/shall提到句首6 .例句： They are going to have a competition with us in studies.It is going to rain.八、過去將來時:1 .概念：立足于過去某一時刻，從過去看將來，常用于 賓語從句中),etc.2 .時間狀語：the next day(morning, year),the following month(week3 .基本結(jié)構(gòu)： was/were/going to + do ； would/should + do.4 .否定形式： was/were/no

9、t + going to + do;would/should + not + do.5 .一般疑問句：was或were放于句首；would/should提到句首。6 .例句： He said he would go to Beijing the next day.I asked who was going there .幾種常見時態(tài)的相互轉(zhuǎn)換英語中的幾種時態(tài)在一定情況下可以互相轉(zhuǎn)換，以下是幾種常見的轉(zhuǎn)換形式：一、一般過去時與現(xiàn)在完成時的轉(zhuǎn)換在現(xiàn)在完成時中，延續(xù)性動詞 能與表示一段時間的 狀語連用，瞬間動詞卻不能。但是，可用別的表達(dá) 方式：瞬間動詞用于“一段時間 + ago”的一般過去時的句型中

10、；瞬間動詞可改成與之相對應(yīng) 的延續(xù)性動詞及 短語，與一段時間連用；瞬間動詞用于“ It is + 一段時間+ since + 一般過去時” 的句型中，表示“自從以來有時間”的意思， 主句一般用it is來代替It has been;瞬間動詞 用于"Some time has passed since +一般過去時”的句型中。請看：A. He joined the League two years ago.B. He has been in the League for two years.C. It is two years since he joined the League.D.

11、 Two years has passed since he joined the League.二、一般現(xiàn)在時與現(xiàn)在進(jìn)行時的轉(zhuǎn)換在一般現(xiàn)在時中，at加上名詞表示“處于某種狀態(tài)"，如 at work （在工作），at school （上學(xué)、上 課）等。此短語可與進(jìn)行時態(tài)轉(zhuǎn)換。請看：Peter is at work, but Mike is at play.Peter is working, but Mike is playing.三、現(xiàn)在進(jìn)行時與一般將來時的轉(zhuǎn)換在現(xiàn)在進(jìn)彳f時態(tài)中g(shù)o, come, leave, start, arrive等動詞常與表示將來的時間狀語連用表示將要發(fā)生的動作。如：I am coming, Mum! 意為"我就來，媽媽！"請看：The train is leaving soon.The train will leave soon.四、"be going to+ 動詞原形"與"will(shall)+動詞原形”結(jié)構(gòu)的轉(zhuǎn)換"be going to+動詞原形”、表示