江苏省盐城市阜宁县明达初级中学八年级英语下册 8B Unit 1 Past and present Grammar课件 牛津版.ppt

unit1pastandpresent grammar 牛津版初中英语八年级下 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 have has 过去分词 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 thepastparticlesofsomeverbs makingsentencesmr wuasksthestudentstocompletethesentencesbelowusingthepresentperfecttense helpthemcompletethesentences they go tothecinemaalready mrandmrs 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 表示现在完成时的时间副词 一 since短语或从句表示过去的动作延续至今 since之后的时间为一点 mr smithhasworkedheresince1984 1984年以来 史密斯先生一直在这工作 he slearnedabout5 000englishwordssincehewenttocollege 他上大学以来大约学了五千个英语单词 二 for短语表示动作延续多长时间 for的宾语为时间段 wehaveknowneachotherfortwentyyears 我们认识有二十年了 ihaven tseenherforalongtime 我好久没有见到她了 三 just recently是完成时的时间状语 justnow有amomentago之意 是一般过去时的时间状语 thetrainhasjustarrived 火车刚到 didyouseejoanjustnow 你刚才看到琼了吗 haveyouheardfromyourfamilylately recently 你最近收到家人的来信了吗 四 ever和never也是现在完成时常见的时间状语 前者意思是 曾经 多见于疑问句或否定句中 后者意思是 从来没有 表示全部否定 haveyoueverseenthefilm no ihaveneverseenit 你曾经看过这部影片吗 没有 从来没看过 nobodyinourclasshaseverbeenthere 我们班没有人去过那 五 already和yet常见于现在完成时中 有 已经 之意 前者一般用在肯定句中 后者用在疑问句中 yet在否定句中有 还 之意 hasthebusleftyet yes ithasalreadyleft no ithasn tleftyet 汽车开走了吗 是的 已经开走了 不 还没有开走 六 already 用于现在完成时的肯定句中 yet 用于现在完成时的否定句和疑问句中 用 already yet 填空 hehas visitedmanyplacesinchina 注意 a