英语人教版八年级下册unit 8 Grammar Focus课件.ppt

Unit8HaveyoureadTreasureIslandyet GrammarFocus TreasureIsland AliceinWonderland RobinsonCrusoe arriveonthisislandmakeaboatbringbackgiveupwaitforcutdownbuildahouse 到达这个岛制作船带回来放弃等候砍倒建房子 kill forfoodthemarksofanotherman sfeetwhoelseseesb doingsth runtowardshelpsb dosth namesb teachsb sth 杀死 作为食物另一个人的脚印还有谁看见某人正在做某事朝 跑帮助某人做某事给某人起名为 教某人某事 Revision Readthefollowingsentenceswehaveseen HaveyoureadLittleWomenyet Yes Ihave No Ihaven t HasTinareadTreasureIslandyet Yes shehas Shethinksit sfantastic Haveyoudecidedwhichbooktowriteaboutyet Yes Ihave I vealreadyfinishedreadingit Itwasreallygood 现在完成时 1 过去发生的动作对现在造成的影响或结果 和already never ever just before yet等状语连用 2 过去已经开始 持续到现在的动作或状态 常与for或since引起的一段时间状语连用 动词构成 have has v过去分词 havebreakfast Ihavejusthadmybreakfast 现在我不饿 I mnothungrynow movedherein2004 Istilllivehere Ihavelivedhereforthirteenyears Ihavelivedheresince2004 thirteenyearsago now past 1 for 表示一段时间的短语 2 since 表示过去时间点的词语 3 since 表示过去时间的时间状语从句 eg Ihavebeenateacher ayear Hehasbeenatthisschool 1992 Wehavelearned1 000Englishwords wecametothisschool for since since 现在完成时句中常见的时间状语A 表示从过去一直持续到现在 不能是具体的过去时间 注意 现在完成时不能和明确指出时间的状语 如 yesterday last year in1976 twodaysago justnow whenshecamein等 连用 但可以和不明确指出时间的状语 如 already yet ever never sometimes always often before once twice recently lately等 连用 也可以和表示包括现在在内的时间状语 如 today thismorning thisweek thisyear等 连用 ever just already yet e g Haveyou beentoJapan Ihave finishedmyhomework Ihavefinishedmyhomework Ihaven tfinishedmyhomework B just already yet before ever never有此类副词时 常强调动作完成 不强调动作的持续 1 现在完成时 表示过去发生或已经完成的某一动作对现在造成的影响或结果 或从过去开始一直延续到现在的动作或保存的状态 强调的是现在的情况 不能和表示过去的时间状语连用 如 in1990 lastSunday等 2 一般过去时 一般过去时只表示过去的动作或状态 和现在不发生关系 即动作或状态在现在已经结束 它可以和表示过去的时间状语连用 现在完成时与一般过去时的区别 have has V过去分词 3 现在完成时把过去的动作和现在的结果联系起来 一般过去时只限于表示过去的动作本身 与现在的结果无关 Ihavecleanedmyroom Myroomiscleannow 我已经打扫过我的房间了 Icleanedmyroomlastweek Ididitinthepast 我上周打扫了我的房间 Heboughtadictionarylastweek Heboughtitinthepast 他上周买了一本字典 Hehaveboughtadictionary Heboughtadictionaryandhehasitnow 他已经买了一本字典 一 过去式和过去分词的变化相同规则变化 一般在动词词尾直接加ed 如 pick picked picked wish wished wished help helped helped2 以不发音的e结尾的动词后面加d 如 like liked liked hope hoped hoped phone phoned phoned 3 以 辅音字母 y 结尾的动词 变y为i 再加 ed 如 study studied studied hurry hurried hurried reply replied replied4 词尾只有一个辅音字母的重读闭音节动词 要双写辅音字母 再加 ed 如 stop stopped stopped clap clapped clapped 不规则变化 5 以不变应万变 如 let let let put put put read read read6 若中间有双写e 则去掉一个e 单词末尾再加t 如 feel felt felt keep kept kept sleep slept slept 7 结尾的字母d变t 如 lend lent lent build built built send sent sent 8 变为以 ought或 aught结尾 如 buy bought bought bring brought brought catch caught caught 1 Writetheformsofthepasttenseandpastparticiple drink begin see go find come leave build tell feel drankdrunk sawseen foundfound leftleft toldtold wentgone camecome beganbegun builtbuilt feltfelt 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 4cCompletethechartw