八种时态介绍.doc

八种时态介绍一， 一般现在时态：表示现在经常发生或习惯性的动作。时间状语： every , sometimes, always, never, often,usually等。1 由be的is am are表示，之后接名词，形容词或介词。陈述句：I am an office worker.He is so lazy.They are at home now.否定句： I am not Tim. She is not very beautiful. They are not in the office.一般疑问句：Are you an office assistant? Is she beautiful?特殊疑问句：What is your job? What colour is your bag? Where are you now?2 由实意动词V构成，引导疑问句和否定句，用do或dont。第三人称时用does或doesnt,有does出现动词用原形；第三人称陈述句V后加s或es.陈述句：I work in Shanghai. He works at home. Davy never watches TV at home.否定句: I dont like the food in KFC. Davy doesnt like the food in KFC either.一般疑问句: Do you want a cup of coffee? Does she live near the subway station?特殊疑问句：What do you want? Where does she live? How do they go to work?3 由情态动词can, must, may构成。may没有否定形式。陈述句: I can drive a car. He must tell the truth. We may get there on foot.否定句：I cant swim at all. You mustnt（表示禁止） smoke in the office.一般疑问句: Can you wait a minute? Must I stay at home? May I use your phone?特殊疑问句： How can I get there? What must I do now?二 一般过去时态。在过去时间里所发生的动作或存在的状态。时间状语有：yesterday, last week, an hour ago，the day before yesterday,in 1997。1由 be的过去式是 was或 were表示。Is am-was;are-were.陈述句：I was a big boss.He was beautiful. We were in Beijing last year.否定句: I was not at home at that moment. We were not at work yesterday.一般疑问句: Were you a teacher? Was she in the office last week?特殊疑问句：Where were you last night? When were you in that company?2 由V的过去式构成陈述句，疑问句和否定句用借助于did,有did出现动词用原形。陈述句：I worked in Sunmoon.We studied English there. He lived in HongKong.否定句: I didnt work here. They didnt see me. She liked English a lot.一般疑问句: Did you go to America? Did he work in Sunmoon?特殊疑问句：Where did you work? What did he say to you? How did you know my name?3 由情态动词的过去式构成，cancould.She could walk when she was one year old. I could not speak English one year ago.三 一般将来时态：即将发生动作或状态。时间状语有：tomorrow,next year,the month after next,in two hours.1 任何人称+will+动词原形.I will fly to KongKong tomorrow. He will go with us. We will arrive in Shanghai next week.I will never believe you again. He will not come tonight. We will not buy a car next year.Will you go there by train? Will he come tomorrow? Will they live a five-star hotel?What will you do after class? Where will he live? How will they come here?2 is/am/are+going to+V原形，表示计划打算做什么事情。Im going to go to Kongkong by air.We are not going to buy a house here.Are they going to change their jobs?How are you going to tell him?四 过去将来时态；在过去将会发生的动作。构成：任何人称+would +V原形was/were going to +V原形He said he would come in in Shanghai.I say I would buy you a car one day.They told me that they were not going to go abroad.五 现在进行时态：表示现在( 指说话人说话时) 正在发生的事情。常用的时间的动作：now, at the（this）moment构成：is/am/are+VingIm waiting for my boy friend. He is doing the housework at home now.He is not playing toys. We are enjoying ourselves.Are you having dinner at home? Is Tim cooking in the kitchen?What are you doing now? Where are they having a meal?六 过去进行时态：过去一段时间正在发生的动作。构成：was/were+VingI was doing my homework at that time. He was not sleeping at 11 oclock last night.What were you doing at that moment?We were having a party while my neighbour is sleeping.七 现 在完成时态：用来表示之前已发生或完成的动作或状态，其结果的确和现在有联系。动作或状态发生在过去但它的影响现在还存在；也可表示持续到现在的动作或状 态。简单的说，就是动作已经发生对现在造成明显的影响。常用的时间 fortwo /weeks/years；forseveral days； since 2004/ Apr.23/lastweek/theaccident构成：have/has +done（过去分词）I have already told Davy. Davy has known this matter. He has lived here for nearly 10 years.I havent finished my homework.Tim hasnt come yet.We havent heard any news about himHow long have you worked in this company?特别注意：1 have/has always been+名词/形容词/介词：总是或一直是什么样子。He has always been a good father. I have always been busy.They have always been in America.2 have/has been to:表示去过或到过。I have been to Canada. Have you been to Hongkong?Where have you been? I have never been here.3 have/has gone to:去了。He has gone to Beijing. They