grammar1.ppt

Presentperfecttense▲现在完成时态的含义是表示过去发生的或已完成的动作对现在造成的影响或结果。特点是既涉及过去又联系现在：动作是过去发生的结果是现在存在的。一、现在完成时谓语动词的构成：助动词have/has(not)+V-ed（过去分词）这种用法常与alreadyjustyeteverneverbefore(句末)等连用.注意：当在肯定陈述句中含有already或just时在转换成否定句或疑问句时要把句中的already或just去掉在句末加上yet.havebeento曾经去过某地（已返回）Someonewenttosomeplaceandhasalreadycomebackhavebeenin去某地一段时间someonestayinsomeplaceforsometimehavegoneto去了某地（没有回来）Someonewenttosomeplaceandisstillthere1.IhavegonetoJapanbefore.()2.ThesceneryofMountFujiisverybeautifulIhavebeentotheretwice.()3.HisfatherhasbeentoBeijing.Hewon’tbebackuntilnextweek()4HowlonghasKittybeeninHongkong.()5.Wherehaveyougone?()1.A:Where’sJimLiLei?B:He______________hisschoollibrary.2.TheGreens_____________Chinaforthreeyears.3.We_____________theGreatWalltwice.It’sverybeautiful.4._______youever__________Shanghai?5.Lilyisn’tintheclassroom.She__________thelab.6.________Lucy__________Chinasince5yearsago.1.她以前曾去过上海。WorkinpairsReplacetheunderlinedwordswithyourownideasFinishtheexercisesonPage31Bye-bye!