三种时态对比总结

一三种时态对比时态名 称标志词基本结构句子类型举例现 在进行时1. now2. look, listen3. Its 9 am4. where is/are xx?5. What is/are xx doing?6.t hese days/monthsbe(am/is/are) +doing主语+be+doing主语+be+not+doingBe+主语+doing?He is working now.He isnt working now.Is he working now？一 般现在时1. every (day/morning)2. always/often/usually/sometimes/never3.inthe morning/afternoon/evening4.on weekends/Sundays1.Be(am/is/are)3. 行为动词do/does主语+do/does+dont/doesnt+doDo/Does+主语+do?1.He is at home on weekends.2.He isnt at home3.Is he at home?1.He works in a hospital every day.2.He doesnt work 3.Does he work一 般过去时1. yesterday(morning/after-noon/evening)2. last (year/night /month)3. two days /three years ago4. in 1990/20005. just now(刚才)1.be(was/were)2.行为动词did主语+did主语+didnt+doDid+主语+do?1.He was at home yesterday2.He wasnt at home3.Was he at home?1.He worked in a hospital last year. 2.He didnt work 3.Did he work二一般过去时动词变化1规则变化 +d/ed(1) 轻辅音结尾+ed/d : 发/t/ (2)浊辅音结尾或元音字母结尾+ed/d: 发/d/Watch-watched(观看) play-played show-showedwash-washed(洗) stay-stayedlook-looked (at/for/after) enjoy-enjoyedwork-worked(工作) study-studiedtalk-talked(聊天) worry-worriedmilk-milked carry-carriedpick-picked climbedshop-shopped (3)d/t结尾+d/ed: 发/id/ want-wanted need-needed stop-stopped visit-visited sound-sounded start-started2不规则变化am/is-was begin-began write-wroteare-were drink-drank ride-rodedo-did give-gave write-wrotehave-had swim-swam blow-blewgo-went sing-sang know-knewtake-took sit-sat grow-greweat-ate get-got draw-drewsee-saw forget-forgot fly-flewcome-came buy-bought spend-spentrun-ran bring-brought send-sentmake-made think-thought keep-keptcan-could fight-fought sleep-sleptfind-found teach-taught feel-feltfeed-fed lose-lost wear-woremeet-met leave-left speak-spokesay-said hear-heard read-readpay-paid put-puttell-told cut-cutsell-sold