八下第三課時(shí).ppt

Unit8 Unit8HaveyoureadTreasureIslandyet SectionA3Grammarfocus 4c Revision Readthefollowingsentenceswehaveseen HaveyoureadLittleWomenyet Yes Ihave No Ihaven t HasTinareadTreasureIslandyet Yes shehas Shethinksit sfantastic Haveyoudecidedwhichbooktowriteaboutyet Yes Ihave I vealreadyfinishedreadingit Itwasreallygood 用法1 表示過(guò)去發(fā)生或已經(jīng)完成的某一動(dòng)作對(duì)現(xiàn)在造成的影響或結(jié)果 e g Haveyouhadyourlunchyet Yes Ihave I vejusthadit 現(xiàn)在我不餓了 2 表示動(dòng)作或狀態(tài)從過(guò)去某一時(shí)刻開(kāi)始 一直延續(xù)到現(xiàn)在 而且可能還要繼續(xù)下去 現(xiàn)在完成時(shí) e g Ihaven tseenherthesedays I veknownBobforthreeyears I vebeenatthisschoolforovertwoyears 時(shí)間狀語(yǔ)already yet just ever never before 構(gòu)成現(xiàn)在完成時(shí)是由 助動(dòng)詞have has 動(dòng)詞的過(guò)去分詞 構(gòu)成的 規(guī)則動(dòng)詞的過(guò)去分詞構(gòu)成與過(guò)去式相同 不規(guī)則動(dòng)詞的過(guò)去分詞則需逐個(gè)記憶 動(dòng)詞的過(guò)去式的變化和過(guò)去分詞的變化并不完全相同 我們對(duì)它們作了一個(gè)大致的分類(lèi) 注 例子中單詞的變化順序?yàn)?動(dòng)詞原形 動(dòng)詞的過(guò)去式 動(dòng)詞的過(guò)去分詞 一 過(guò)去式和過(guò)去分詞的變化相同規(guī)則變化 1 一般在動(dòng)詞詞尾直接加ed 如 pick picked picked wish wished wished stay stayed stayed2 以不發(fā)音的e結(jié)尾的動(dòng)詞后面加d 如 like liked liked hope hoped hoped phone phoned phoned 3 以 輔音字母 y 結(jié)尾的動(dòng)詞 變y為i 再加 ed 如 study studied studied hurry hurried hurried reply replied replied4 詞尾只有一個(gè)輔音字母的重讀閉音節(jié)動(dòng)詞 要雙寫(xiě)輔音字母 再加 ed 如 stop stopped stopped clap clapped clapped 不規(guī)則變化 5 以不變應(yīng)萬(wàn)變 如 let let let put put put read read read6 若中間有雙寫(xiě)e 則去掉一個(gè)e 單詞末尾再加t 如 feel felt felt keep kept kept sleep slept slept 7 結(jié)尾的字母d變t 如 lend lent lent build built built send sent sent8 變?yōu)橐?ought或 aught結(jié)尾 如 buy bought bought bring brought brought catch caught caught teach taught taught 句式1 肯定句 主語(yǔ) have has 過(guò)去分詞 其他 2 否定句 主語(yǔ) have has not 過(guò)去分詞 其他 3 一般疑問(wèn)句 have has 主語(yǔ) 過(guò)去分詞 其他 4 特殊疑問(wèn)句 特殊疑問(wèn)詞 不是句子主語(yǔ) have has 主語(yǔ) 過(guò)去分詞 其他 2 特殊疑問(wèn)詞 是句子主語(yǔ) have has 過(guò)去分詞 其他 already和yet都可以作為現(xiàn)在完成時(shí)的標(biāo)志詞 但它們的用法不同 already一般用于肯定句中 如 Wehavealreadycleanedupourclassroom 注意 already用于疑問(wèn)句中時(shí)通常表示驚奇 如 Haveyoufinishedyourhomeworkalready Ican tbelieveit yet一般用于疑問(wèn)句和否定句中 如 Haveyouseenheryet Thebushasn tcomeyet 活學(xué)活用 1 Writetheformsofthepasttenseandpastparticiple drink see find leave tell drankdrunk sawseen foundfound leftleft toldtold WhyisMr Yangstillintheteachers office Maybehe hisworkyet A doesn tfinishB hasn tfinishedC haven tfinished B Exercises 4aUsethewordsinbracketstocompletetheconversations 1 A Wouldyoulikesomethingtodrink B No thanks just drinksometea 2 A Iheardyoulostyourkey find B No notyet Ihavejustdrunksometea Haveyoufoundit 3 A DoyouknowwhenTomisleaving B already leave A When leave B Thismorning 4 A Isyoursistergoingtothemovieswithustonight B No already seethefilm Hehasalreadyleft didheleave Shehasalreadyseenthefilm 5 A Whatdoyourparentsthinkaboutourplan B I not tellthem yet haven ttoldthemyet 4bFillintheblankswiththecorrectformsofthewordsinthebrackets Sally love reading Inthemorningshereadsthenewspaperandintheeveningshereadsbooks She already read morethan100differentbooks Herfavoritekindofbooksissciencefiction Sheisinterestedinscienceandtechnologyandlovestoimaginewhattheworld be likein50years loves has read willbe She finish readingabookaboutrobotslastweekand write abookreportaboutitnextweekforherFrenchclass Everytimesheisinthelibrary Sallylooksatthemanybooksshe notread yetandshecan twaittoreadthem finished willwrite hasn tread Groupwork 4cCompletethechartwithinformationaboutyouandyourfriend A Whatbookshaveyoualreadyread B IhavealreadyreadTomSawyerandHarryPotter A Whatdoyouthinkofthem B Well IthinkHarryPotterwasexciting butTomSawyerwasabitboring 2013廣西貴港 DoyouknowthemovieLostinThailand Yes I ittwice It sfunny A sawB seeC haveseenD willsee C 中考鏈接 2013黑龍江牡丹江 Lunch No thanks I A willea