初中英语 8BUnit 1 grammar课件牛津版.ppt

thepresentperfecttense 现在完成时态 grammar thepresentperfecttense weusethesimplepasttensetotalkaboutwhathappenedatadefinitetimeinthepast pastpresenteddiewasbornfouryearsago weusethepresentperfecttensetotalkaboutthingsthatstartedinthepastandstillhavesomeconnectionwiththepresent eddiehaslivedwithmilliesincehewasborn eddiehaslivedwithmillieforfouryears present past past present 4years 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主语 第三人称复数 have 过去分词主语 第三人称单数 has wehavelivedinbeijing hehaslivedinbeijing ihavefinishedmyhomework 2现在完成时的否定句句型主语 have has not 过去分词 ihavenotseenthemovieyet hehasn tbeentobeijingsincethen thetablebelowshowshowweformthepastparticlesofsomeverbs makingsentencesmr wuasksthestudentstocompletethesentencesbelowusingthepresentperfecttense helpthemcompletethesentences they go tothecinemaalready mr andmrs li notcome backyet john be totheusaafewtimes we notsee thatfilmyeti nottalk tomycousinsincelastfriday you notvisit meforalongtime havegone havenotcome hasbeen havenotseen havenottalked havenotvisited 3现在完成时的一般疑问句句型have has 主语 过去分词 haveyoufinishedthework hasshearrivedhere 4现在完成时的特殊疑问句句型特殊疑问词 have has 主语 过去分词 howmanytimeshaveyoubeentothegreatwall chattimemillieandsandyaretalkingaboutafilmabouthongkong completetheirconversation usethecorrectformsoftheverbsinthebrackets m you see anyfilmsrecently sandy s no i whataboutyou m yes i see one s whatisitabout m i forget thetitle it sabouthongkong have seen haven t haveseen haveforgotten s yourcousin go withyou m no he he be verybusythisweek s didyouenjoythisfilm m yes idid i learn alotabouthongkong spastandpresent you visit hongkongbefore s no i butihaveheardabouthongkong snewairport did go didn t hasbeen havelearnt have visited haven t m doyouknowhowlongithasinservice s no idon t m letmetellyou it be inservicesince1998 s oh soitwasoneyearafterhongkong sreturntochina m yes youmustgoandwatchthatfilmifyouwanttolearnmoreabouthongkong hasbeen 实力测验用括号中动词的适当形式填空he wait foranhour i notfinish theworkyet you know himsincethen i hear frommyfatherrecently we be theremanytimesinthepast3years thedog die since3daysago they finish theworksofar howlongyou stay athomealready i notread thebookbefore hejust do it mysister walk toschooleverydaylastyear we have anexamagainsometimenextweek by2000 we plant 2000trees lucy go toshanghai she leave thismorning 15 tom buy thebikefor2years haswaited haven tfinished have known haveheard havebe