現(xiàn)在完成時、過去完成時、現(xiàn)在完成進行時

1、現(xiàn)在完成時、過去完成時、現(xiàn)在完成進行時現(xiàn)在完成時、過去完成時、現(xiàn)在完成進行時現(xiàn)在完成時、過去完成時、現(xiàn)在完成進行時實用標準知識點①：現(xiàn)在完成時一.一般現(xiàn)在時用法：①過去發(fā)生的動作對現(xiàn)在造成的影響或結(jié)果：強調(diào)結(jié)果e.g.YesterdayIfinishedmyhomewkthat’stosayIhavefinishedmyhomewknow.②過去已經(jīng)開始一直持續(xù)到現(xiàn)在的動作或狀態(tài)：強調(diào)繼續(xù)e.g.Ihavelivedheresince1

2、990.二.現(xiàn)在完成時的構(gòu)成havehas過去分詞三.現(xiàn)在完成時的四個基本句型肯定句Hehasfinishedthewk.一般疑問句Hashefinishedthewk否定句Hehasnotfinishedthewk.兩回答Yeshehas.Nohehasn’t.特殊疑問句Whathashedone四.在下列情形下用現(xiàn)在完成時（1）九詞語①already已經(jīng)肯定句中或句尾e.g.Ihavealreadyfoundmypen.=Ihave

3、foundmypenalready.②yet已經(jīng)否定句和疑問句句尾e.g.Ihavenotfinishedthewkyet.Haveyouboughtacomputeryet③ever曾經(jīng)句中e.g.Haveyoueverseenpas④never從不句中e.g.IhaveneverbeentoBeijing.⑤just剛剛句中e.g.Ihavejustdonemywk.⑥befe以前句尾e.g.Ihaveneverbeenthereb

4、efe.⑦sofar到目前為止e.g.Sofarhehaslearnt200wds.⑧howlong多久e.g.Howlonghaveyoulivedhere⑨howmanytimes多少次e.g.HowmanytimeshashebeentoBeijing（2）兩詞組havegoneto去了某boughtthebook.（改為固定句型Itissince）④Hehasnotboughtthebookf3years.（改為否定句）⑤Heh

5、ashadthebookf3years.（用延續(xù)性動詞have代替buy）六.還有其他一次性動詞也是這種情況，可參照前面的五種辦法改正，前四種改法都一樣，第五種改法各不相同，舉例如下：①comearrivegettoreach→behere例：Ihavecomeheref3years.（錯）改為：Ihavebeenheref3years.②leavego→beaway例：Hehasleftf3hours.（錯）改為：Hehasbeena

6、wayf3hours.③beginstart→beon例：Thefilmhasbegunf3minutes.（錯）改為：Thefilmhasbeenonf3minutes.④open→beopenclose→beclosed例：Theshophasopenedf3years.(錯)改為：Theshophasbeenopenf3years.⑤die→bedead例：Hisfatherhasdiedf3years.(錯)改為：Hisfath

7、erhasbeendeadf3years.⑥finishend→beover例：Hehasfinishedthewkf3days.(錯)改為：Thewkhasbeenoverf3days⑦join例：Ihavejoinedthearmyf3years.（錯）改為：Ihavebeeninthearmyf3years.或Ihavebeenasoldierf3years.⑧buycatch→havee.g.Ihaveboughtthebike