高职高专英语语法动词的时态.pptxVIP

高职高专英语语法动词的时态会计学第8章动词的时态第1页/共23页 第8节过去完成时 第9节将来完成时 第10节典型分析返回上一页第1节动词时态概述第2页/共23页 时态表示动作发生的时间和所处的状态。英语中的时态是通过动词本身的形式变化来实现的，共有16种时态，见表8一1。返回第2节一般现在时第3页/共23页 1.一般现在时表示经常性或习惯性的动作，常与表示频度的时间状语连用这样的时间状语有every. . . , sometimes , often , usually , on Mondays , in the morning( afternoon , evening)等I get up at 5 every morning.2.客观真理、客观存在和科学事实The earth moves around the sun.The sun is the center of the solar system.3.现在时刻的状态、能力、性格、个性I dont think I can do it.He likes playing basketball.下一页返回第2节一般现在时第4页/共23页4.表示按计划安排好的将来行为，仅限于少数动词，如arrive , leave , go , come , start等词The train for Beijing leaves at six tomorrow morning.5.在时间或条件状语从句中，从句用一般现在时代替一般将来时，而主句仍用一般将来时I will go shopping tomorrow if I have time.She will go to see you when she is free.If it doesnt rain next week, I will climb the mountain.返回上一页第3节一般过去时第5页/共23页一、动词过去式、过去分词的规则变化形戈见表(8一2)二、一般过去时的用法 1.一般过去时表示过去发生的动作或存在的状态常用的时间状语有yesterday, last, ago，the other day，in 2001等 What did you do yesterday? He often went swimming in the river when he was a child. The other day I happened to meet him on the way to my company.下一页返回第3节一般过去时第6页/共23页2. used toused to + do(“过去常常做”)，表示过去习惯性的动作或状态，但如今已不存在He used to he a careful man.3.用在时间或条件状语从句中，一般过去时表示过去将来He said he would come if he had time.The old man said that he would give up smoking when the doctor asked him to.I thought that I would buy a new car if I had enough money.返回上一页第4节一般将来时第7页/共23页1.一般将来时表示将要发生的动作。shall用于第一人称，will用于各种人称常用的时间状语有tomorrow , next. . . , in the future等What shall I do tomorrow?2. be going to do表示计划、打算做某事;表示有迹象要发生的事3.be+不定式，表示按计划或正式安排将发生的事We are to discuss the report this evening.4. be about+不定式，意为“马上做某事”下一页返回第5节现在完成时第8页/共23页1.现在完成时表示过去发生的动作对现在造成一定的影响;过去发生的动作一直持续到现在构成:have( has)+过去分词。动词过去分词的规则变化同动词的过去式。常用的时间状语有:since, for+一段时间 ，recently，ever, up to now等We have studied English since we became middle school students.2. Since句型“主语+谓语(have/has + done ) + since+过去的时间点”或“主语+谓语(短暂性动词的一般过去式)”，译成:自从……以来……He has been working in this college since he graduated from his school.He