现在完成时公开课（新）.ppt

现在完成时 Thepresentperfecttense Readandlearn I velearnttousechopsticks It sbeenafantasticexperiencesofar I velearntabitoft aichi We vealreadylearntalotaboutChinesecultureandhistory TheteachershaveintroducedustoChinesepaintingaswell We vealsotriedtopaintsomepicturesourselves Ihaven thadmuchsuccessyet I vemademanynewfriends Areyouhungrynow Haveyouhadbreakfast Yes Ihave Iamnothungrynow No Ihaven t Iamveryhungrynow Hasyourfriendhadbreakfast Yes he shehas He sheisnothungrynow No he shehasn t He sheisveryhungrynow CanSarahusechopsticks Hasshelearnedhowtousechopsticks Yes shehas Shecanusethemnow WhoisJerryandwhoisTom HaveyouseenthisMovie Yes Ihave IknowJerryisthemouseandTomisthecat Hasyourfriendseenthismovie Yes he shehas He sheknowsJerryisthemouseandTomisthecat Whoistheman Haveyouseenthismovie No Ihaven tseenit Iknownothingaboutit Hasyourfriendseenthismovie No shehasn tseenit 现在完成时的用法 描述 发生或已经完成的某一动作对 的影响或结果 过去 现在 Hehashadbreakfastbefore He sheisnothungrynow Ihavehadbreakfast Ihaven thadbreakfast Haveyouhadbreakfast Yes Ihave No Ihaven t Hasyourfriendseenthismovie Yes shehasseenit No shehasn t 肯定式 主语 have has 过去分词 pp 否定式 主语 have hasnot 过去分词 pp 疑问式 Have Has 主语 过去分词 pp 1 现在完成时是怎样构成的 什么情况下使用has 2 什么情况下使用has 主语是第三人称单数时 使用has Hehasfinishedhishomework ShehaslivedinConghuaforalongtime ErichasstudiedalittleChinese Mycomputerhasstoppedworking 其他情况下使用have Ihaveseenthisfilm Youhavehadbreakfast Wehavebegunourclass Theyhavemademanynewfriends 3 过去分词的构成 主语是第三人称单数时 使用has youallow youhaveallowed hegoes hehasgone weare wehavebeen yousing youhavesung theyteach theyhavetaught Ibring Ihavebrought shesits shehassat welive wehavelived heopens hehasopened Writethewordsinthepresentperfecttense ed visited visited d lived lived i ed study studied cried cried 辅音 stop stopped drop ed dropped 过去分词的规则变化 与过去式基本相同 不规则变化见 BookAP141 142 巩固练习 请写出以下动词的过去式和过去分词 lookseeinvitedomakeopenworryput lookedlooked invitedinvited diddone sawseen mademade openedopened worriedworried putput I visit theGreatWall IhavevisitedtheGreatWall IhavenotvisitedtheGreatWall 否定句 疑问句 HaveyouvisitedtheGreatWall Yes Ihave No Ihaven t Wehavetravelledbyplane we travelbyplane 否定句 一般疑问句 Wehavenottravelledbyplane Haveyoutravelledbyplane 肯定 否定回答 Yes wehave No wehaven t 否定句 一般疑问句 肯定 否定回答 finishherhomework Shehasfinishedherhomework Shehasn tfinishedherhomework Hasshefinishedherhomework Yes shehas No shehasn t 否定句 一般疑问句 肯定 否定回答 playbasketball Theyhaveplayedbasketball Havetheyplayedbasketball Theyhaven tplayedbasketball Yes theyhave No theyhaven t Completethesentences1 He already theexam pass 2 They already sometrees plant 3 It already rain 4 We already thebrokendoors fix 5 I somefurniture buy 6 We already thekitchen clean 7 John theyard sweep 8 Students knowledgefromtheexperience learn haspassed haveplanted hasrained havefixed havebought havecleaned hasswept havelearnt FengyunMountain Cantontower Conghuahotspring Disneyland S1 Haveyouvisited beento S2 Yes Ihave No Ihaven t S3 Whichplacehasyourfriendvisited S4 She Hehasvisited She Hehasbeento 现在完成时的用法 表示过去发生或已经完成的某一动作对现在的影响或结果 1 他去过北京 他现在了解北京 HehasbeentoBeijing 2 我已经开了门 门是开着的 Ihavealreadyopenedthedoor 常与already 已经 yet 还没有 ever 曾经 never 从不 等时间状语连用 already 已经 用于肯定句 可放在句中或句末 Ihavealreadyopenedthedoor Ihaveopenedthedooralready yet 仍然 还没有 用于否定句或一般疑问句 放句末 Theyhaven tfinishedtheirhomeworkyet Haveyoufinishedyourhomeworkyet ever 曾经 Haveyouevervisitedthatschool never 从不 Ihaveneverreadthatbook they already Theyhavealreadydanced dance he already Hehasalreadysungthissong singthissong she not yet Shehasnotcleanedtheflooryet cleanthefloor he not yet Hehasnotfinishedthepictureyet finishthepicture they not yet Theyhavenotswumyet swim she never ShehasneverlearntEnglish learnEnglish he never Hehasneverchangedalightbulb changealightbulb he ever yes Hasheeverplayedbasketball Yes hehas playbasketball she ever yes cook Hassheevercooked Yes shehas they ever no takepartinthesportsmeeting Havetheyevertakenpartinthesportsmeeting No theyhaven t she yet no finishherhomework Haveshefinishedherhomeworkyet No shehasn t 单项选择1 Haveyoulockedthedoor alreadyB yetC everD never2 He snever thefilm A seeB sawC seeingD seen 3 youever thispen Itisuseful A Has useB Have usedC Have useD Did use B D B 5 LiLeihasn tgotup A alreadyB everC yetD just 6 We ajuniorhighschoolstudentsformorethanoneyear A havebecameB havebecomeC hasbecomeD became C B 7 ZhaoLan already inthissc