英语人教版八年级下册现在完成时.ppt

时态专题语法讲与练 六 现在完成时态 例 Haveyouhadyourlunchyet 你吃过午饭了吗 Yes Ihave I vejusthadit 是的 我吃过了 我刚刚吃了 现在我不饿了 HaveyoureadLittleWomenyet 你读过 小妇人 吗 No Ihaven t 不 我还没有读过 我对该书不了解 1 用法 表示 发生或已经完成的动作 对 的影响或结果 过去 现在 2 时间状语标志 already已经 yet至今还 never从不 ever曾经 before以前 just刚刚 recently最近 sofar uptonow到目前为止 例 I veknownBobforthreeyears 我认识Bob三年了 Theyhavelivedheresince1996 自从1996年以来他们就一直住在这里 ShehastaughtussinceIcametothisschool 自从我来到这所学校 她就一直教我们 Howlonghaveyouworkedinthislibrary 你在这个图书馆工作了多长时间 1 用法 表示某动作从 某一时间开始 一直持续到 还有可能延续到 过去 现在 未来 2 时间状语标志 for 时间段since 时间点 从句 3 动词的过去分词的构成 一 规则变化 1 在原形后面直接加 edwatch play visit work travel finish listen learn 2 以e结尾 只加 dlive argue use decide realize change 3 辅音字母加y结尾 改y为i 再加 edstudy try cry 4 重读闭音节词 词尾只有一个辅音字母 先双写最后一个辅音字母 再加 edshop stop drop plan chat watched played visited worked traveled lived argued used decided studied tried cried shopped stopped dropped planned chatted realized changed finished listened learned 二 不规则变化 be am is are become bring buy cut do does drink find have has hear leave lose put read ride say see sell speak teach tell write left found lost put had ridden read said seen been brought bought cut done heard drunk sold spoken written taught told become 4 结构 肯定句 主 have has done 过去分词 其他 否定句 主 have hasnot done 其他 在have has后面加not havenot haven thasnot hasn t一般疑问句 Have Has 主 done 其他 将have has提前放句首回答 Yes 主 have has No 主 haven t hasn t 用have has提问 回答也用have has Ihave I veyouhave you vewehave we vetheyhave they ve already 已经 用于肯定句 句中 have hasalreadydone yet 至今还 用于否定句 疑问句 句末HaveyoureadLittleWomen Yes Ihave readit No Ihaven treadit HasTinareadTreasureIsland Yes Shehas finishedreadingit 区分already yet yet already yet yet already 1 我曾经去过长城 IhaveeverbeentotheGreatWall Ihaven teverbeentotheGreatWall HaveyoueverbeentotheGreatWall Yes Ihave No Ihaven t 课堂检测 一 先翻译 再变否定句 一般疑问句 及简略回答 3 他以前看过这部电影 Hehasseen watchedthismoviebefore Hehasn tseenthismoviebefore Hasheseenthismoviebefore Yes hehas No hehasn t 2 我们已经做完家庭作业了 Wehavealreadyfinishedourhomework Wehaven tfinishedourhomeworkyet Haveyoufinishedyourhomeworkyet Yes wehave No wehaven t Bobhasreadthebook Lilyhaslearned500newwords Ihavebeentothesciencemuseum IhaveknownLiLeiforthreeyears 二 对划线部分提问 WhathasBobdone HasLilylearned500newwords Haveyoubeentothesciencemuseum HaveyouknownLiLeiforthreeyears HasBobreadthebook Whohaslearned500newwords Wherehaveyoubeen HowlonghaveyouknownLiLei 1 She live heresinceshewasten 2 Bothofthem come toHongKongtendaysago 3 Mary lose herpenyesterday you see ithereandthereyet 4 Halfanhour pass sincethetrain leave 5 youever argue withyourbestfriend 二 用所给动词的适当形式填空 haslived came lost Haveseen haspassed left Haveargued 6 Mike go tothehistorymuseumlastyear 7 I never see thiskindofanimalbefore 8 Theoldman live heresince1992 9 you visit ournewschooly