江蘇省鹽城市阜寧縣明達(dá)初級(jí)中學(xué)八年級(jí)英語(yǔ)下冊(cè) 8B Unit 1 Past and present Grammar課件 牛津版.ppt

unit1pastandpresent grammar 牛津版初中英語(yǔ)八年級(jí)下 thepresentperfecttense weusethesimplepasttensetotalkaboutwhathappenedatadefinitetimeinthepast pastpresenteddiewasbornfouryearsago weusethepresentperfecttensetotalkaboutthingsthatstartedinthepastandstillhavesomeconnectionwiththepresent eddiehaslivedwithmilliesincehewasborn eddiehaslivedwithmillieforfouryears present past past present 4years 一 現(xiàn)在完成時(shí)的構(gòu)成1 現(xiàn)在完成時(shí)的肯定句句型 主語(yǔ) have has 過(guò)去分詞 wehavelivedinbeijing hehaslivedinbeijing ihavefinishedmyhomework 2 現(xiàn)在完成時(shí)的否定句句型 主語(yǔ) have has not 過(guò)去分詞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 現(xiàn)在完成時(shí)的一般疑問(wèn)句句型have has 主語(yǔ) 過(guò)去分詞 haveyoufinishedthework hasshearrivedhere 4 現(xiàn)在完成時(shí)的特殊疑問(wèn)句句型特殊疑問(wèn)詞 have has 主語(yǔ) 過(guò)去分詞 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 表示現(xiàn)在完成時(shí)的時(shí)間副詞 一 since短語(yǔ)或從句表示過(guò)去的動(dòng)作延續(xù)至今 since之后的時(shí)間為一點(diǎn) mr smithhasworkedheresince1984 1984年以來(lái) 史密斯先生一直在這工作 he slearnedabout5 000englishwordssincehewenttocollege 他上大學(xué)以來(lái)大約學(xué)了五千個(gè)英語(yǔ)單詞 二 for短語(yǔ)表示動(dòng)作延續(xù)多長(zhǎng)時(shí)間 for的賓語(yǔ)為時(shí)間段 wehaveknowneachotherfortwentyyears 我們認(rèn)識(shí)有二十年了 ihaven tseenherforalongtime 我好久沒(méi)有見(jiàn)到她了 三 just recently是完成時(shí)的時(shí)間狀語(yǔ) justnow有amomentago之意 是一般過(guò)去時(shí)的時(shí)間狀語(yǔ) thetrainhasjustarrived 火車剛到 didyouseejoanjustnow 你剛才看到瓊了嗎 haveyouheardfromyourfamilylately recently 你最近收到家人的來(lái)信了嗎 四 ever和never也是現(xiàn)在完成時(shí)常見(jiàn)的時(shí)間狀語(yǔ) 前者意思是 曾經(jīng) 多見(jiàn)于疑問(wèn)句或否定句中 后者意思是 從來(lái)沒(méi)有 表示全部否定 haveyoueverseenthefilm no ihaveneverseenit 你曾經(jīng)看過(guò)這部影片嗎 沒(méi)有 從來(lái)沒(méi)看過(guò) nobodyinourclasshaseverbeenthere 我們班沒(méi)有人去過(guò)那 五 already和yet常見(jiàn)于現(xiàn)在完成時(shí)中 有 已經(jīng) 之意 前者一般用在肯定句中 后者用在疑問(wèn)句中 yet在否定句中有 還 之意 hasthebusleftyet yes ithasalreadyleft no ithasn tleftyet 汽車開(kāi)走了嗎 是的 已經(jīng)開(kāi)走了 不 還沒(méi)有開(kāi)走 六 already 用于現(xiàn)在完成時(shí)的肯定句中 yet 用于現(xiàn)在完成時(shí)的否定句和疑問(wèn)句中 用 already yet 填空 hehas visitedmanyplacesinchina 注意 a