现在完成时复习PPT课件

.,1,语法复习现在完成时,.,2,一、现在完成时的构成1.现在完成时的肯定句句型主语（第一,二人称单,复数）+have（第三人称复数）+have（第三人称单数）+has,+过去分词,.,3,2现在完成时的否定句句型主语+have/has+not+过去分词+例如：Ihavenotseenthemovieyet.HehasntbeentoBeijingsincethen,.,4,3.现在完成时的一般疑问句句型Have/Has+主语+过去分词+.Haveyoufinishedthework?Hasshearrivedhere?,.,5,句型特殊疑问词+have/has+主语+过去分词+.HowmanytimeshaveyoubeentotheGreatWall?,4.现在完成时的特殊疑问句,.,6,already,yet,just,recently，sofar,ever,never,uptonow,inthepastyears,overtheseyears等。,5.现在完成时常用的时间状语是,.,7,现在完成时表示：1.过去发生的动作对现在造成的影响和结果。强调现在的影响，和过去无关，不和表示过去的时间状语连用。,Ihavereadhisletter.Hehasntcleanedthewindowsyet.Youhavealreadychanged.Theyhaveneverspokentoeachother.HaveyoueverbeentotheUSA?,.,8,already,yet,just,recently,sofar,ever,never,inthepastyears,overtheseyears等。,5.常和现在完成时连用的状语有：,.,9,用括号中动词的适当形式填空He_(draw)apictureofhispetdogalready.I(notfinish)theworkyet.I_(hear)frommyfatherrecently.We_(be)theremanytimesinthepast3years.They_(finish)theworksofar.Howlongyou_(stay)athomealready?I_(notread)thebookbefore.Hejust(do)it.Mysister_(walk)toschooleverydaylastyear.We_(have)anexamagainsometimenextweek.Lucy_(go)toShanghai.She_(leave)thismorning.,hasdrawn,haventfinished,haveheard,havebeen,havefinished,have,stayed,haventread,has,done,walked,willhave,hasgone,left,.,10,现在完成时和一般过去时区别：,1.He_(work)outthemathandnowheisexplainingittous.2.He_(come)toourschoollastyear.3.They_(cook)thesupperalready.They_(cook)ithalfanhourago.4.They_(notbuy)theairtickets.They_(buy)themtomorrow.,hasworked,came,havecooked,cooked,haventbought,willbuy,.,11,翻译句子：1.我已经修好了你的照相机。2.吉姆还未到中国旅行过。3.迄今为止，李先生已经教过3000个学生。4.近来，有些交换留学生已经从我们学校毕业。5.在过去的20年里，中国发生了很大的变化。6.李明刚刚去乡下看望他的奶奶。,Ihavealreadyrepairedyoucamera.,JimhasnttravelledtoChinabefore.,Sofar,MrLihastaught3000students.,Someexchangestudentshavegraduatedfromourschoolrecently.,Chin