江苏省南京师范大学附属中学新城初级中学怡康街分校八年级英语下册 Unit 1 Past and present grammar课件 （新版）牛津版.ppt

presentperfecttense grammar 1 unit1pastandpresent 现在完成时 1 whendidyouhavebreakfastthismorning asksomedailyquestions 2 whendidyoumovehere 3 howmanytimeshaveyoubeentohongkong shehadbreakfastat6o clock shehashadbreakfast hemovedheretwoyearsago hehaslivedherefortwoyears theyhavebeentohongkongonce shehashadbreakfast 她吃过早饭了 theyhavebeentohongkongonce hehaslivedherefortwoyears 他们去过香港一次 他已经住这两年了 现在完成时 用法1 现在完成时表动作发生在过去并对现在造成影响 她现在不饿 用法2 现在完成时表动作发生在过去并一直持续到现在 有可能继续持续下去 用法3 现在完成时表到现在为止某动作发生了多少次 现在完成时的构成 助动词have has 过去分词 done theyhavearrived 主语 谓语 动词过去分词 阅读五个句子 讨论并完成问题1 shehashelpedthechildrenwiththeirlessonsforanhour 2 theyhavelearnedenglishforthreeyears 3 i wehavenottoldittohim 4 jimhasnotseenthefilmbefore 5 hashefinishedhishomeworkyet yes hehas no hehasn t 1 现在完成时结构肯定 否定 一般疑问句 把 提前肯定回答 否定回答 2 havenot可缩写成 hasnot可缩写成 现在完成时的基本结构 1 肯定句 i we you they 助动词have p p 过去分词 其它 he she it 助动词has p p 过去分词 其它 e g we xiaocaiqi know she verypopularnow become haveknown hasbecome 现在完成时的基本结构 2 否定句 e g mrchen toanyothercityyet notmove thesnow yet notmelt融化 hasn tmoved i we you they havenot haven t p p 过去分词 其它 he she it hasnot hasn t p p 过去分词 其它 hasn tmelted 3 一般疑问句及回答 have i you we they p p 过去分词 其它 yes i you we theyhave no i you we theyhaven t has she he it p p 过去分词 其它 yes she he ithas no she he ithasn t e g 1 youever xiaocaiqibefore meet 2 she verypopularrecently become havemet no ihaven t hasbecome yes shehas 活动一 仿照例句看表格造句 we cleantheroom cleanthewindow seeafilm cookdinner they she climbthetree gotobeijing visitthegreatwall myfather 1 we theroombutwe cleanedthewindow 2 you theroom yes you thewindow no havecleaned haven tcleaned have cleaned wehave have wehaven t cleaned he climbthehill finishherhomework watchbeijingopera 过去分词regularverbs 规则动词 helped hoped cried chatted 大多数动词末尾加 ed mostverbs ed verbsendingin e d 结尾是e的动词加 d verbsendinginaconsonant y y ied cry 结尾是 辅音字母 y 的动词 先变 y 为 i 再加 ed verbsendinginavowel y ed played 结尾是元音 y的动词 直接加ed shortverbsendinginavowel aconsonant doubletheconsonant ed 以 一个元音 一个辅音 结尾的单音节动词 chat plan planned visitrepairwatchfinish movelivelovelike stopmoptrapplan studyhurryplay 过去分词的构成 上一页 abb aaa abc aba 不规则变化 见课本第122页 p0 completethesentencesusingthepresentperfecttense they finish theirhomework 2 mrandmrsli notcome backyet 3 john play thiscomputergameafewtimes 4 we notsee thatfilmyet 5 mrdong repair overtenbicyclessincelastmonday 6 you notvisit meforalongtime haven tcome havefinished hasplayed haven tseen hasrepaired haven tvisited 现在完成时的时间状语 常与不确定的时间状语连用 如 already never ever just yet before sofar inthepastfewyears等 表示 到目前为止 所发生的动作 上一页 下一页 主菜单 现在完成时的时间副词和时间短语 1 副词already和yet already一般用于肯定句中 yet一般用于否定句和疑问句中 如 wehavealreadyfinishedourhomework already 我们已完成作业了 theyhaven tfinishedtheirhomeworkyet 他们还没有完成作业 用 already yet 填空hehas visitedmanyplacesinchina thetrainhasn tarrived 火车 到现在 还没有到 hasshearrived 她已经到了吗 hasn thecome 她还没来吗 already already yet yet yet 注意 already 在句中的两种位置 ihaveneverbeentothegreatwall 我从未去过长城 副词ever和never 多用于否定或疑问句中 表示 曾经 或 从未 等 如 haveyoueverbeentothegreatwall 你曾经去过长城吗 hehasbeentheretwicerecently 近年来他去过那里两次了 3 用表示到说话为止的过去时间状语 如 just before recently等 如 ihaveseenherbefore buticannotrememberwhere 我以前见过她 但记不起在哪里见过 1 2 3 4 智力大考验 5 conclusion 陈述句 have has后 句末 疑问句 主语后 陈述句 have has后 否定陈述句 have has后 否定陈述句疑问句 句末 肯 否定陈述句 疑问句 句末 1 ihavefinishedmyhomework haveyoufinishedyourhomework a yet yetb yet alreadyc already yetd already already 单项选择 2 ihaven tseenkate 4months a alreadyb sincec ford yet 3 hehas seenthefilmharrypotter soheknowsnothingaboutit a alreadyb everc neverd yet 4 shehasbeenillinbed twodaysago a sinceb inc duringd for 5 haveyouseenhim no ihaven t a alreadyb neverc everd recently 6 ihave watchedawonderfulfilm it sreallyinteresting a yetb justc justnowd never 写出下列动词的过去分词 travel visit live miss move learn be give see make put come 1 haveyoudoneyourhomework for just yet 2 ihave beentochengdu ever never yet 3 hehas washedthedishes already ever for 4 haveyoucleanedyourroom for just yet 5 haveyou riddenahorse ever for yet 6 theyhave arrived ever just yet 7 wehavenotcompletedtheproject already for yet yet never already yet ever just yet 课堂检测 句型转换 1 theyhavefinishedtheirhomework 改为一般疑问句 并做肯定回答 2 mr andmrs lihavecomeback 改为否定句 3 johnhasplayedthiscomputergameafewtimes 改为否定句 4 wehaveseenthatfilm 改为一般疑问句 并做否定回答 5 mr donghasrepairedovertenbikessincelastmonday 改为否定句 课堂检测 i do myhomeworkalready he notfinished hishomeworkyet youever be tobeijing we never see suchanexcitingmatchbefore mothe