Unit 6 现在完成时语法 第二课时课件 2024-2025学年沪教牛津版（广州深圳沈阳通用）八年级英语上册

Module 3 Culture and history Unit 6 Ancient stories Grammar The Present Perfect Tense 现 在 完 成 时 用法 结构 标志词/ 时间 状语 标志词的区分 句型 转换 have been to & have gone to 完成时VS 过去时 I have lost my watch. I lost my watch. ---------- 现在完成时表示过去发生的某一动作对现在造成的影响或结果,强调与现在的关系。 一般过去时只是表示动作是发生在过去,和现在并没有什么直接与必然的联系。 现在完成时 vs. 一般过去时 现在完成时VS一般过去时 tell the difference 时态 结构不同 强调重点不同 标志词（时间状语）不同 一般过去时 陈述过去发生的事情，与现在无关 现在完成时 强调已经完成的事情与现在有关，对现在有影响 动词过去式 --ed have/has done The difference: 一般过去时VS现在完成时 yesterday, …ago, in 2005, last…等过去的时间 already, yet, ever, never, twice, ...times(次)，so far，up to now, recently, lately, for + 时间段, since+ 时间点 since…ago, since last... since +从句(一般过去时)等 gone go went We ____ to a concert last week. have gone PAST SIMPLE – signal word “last … ” (it tells us when it happened) has seen have seen saw I ____ Linda at the cinema yesterday. seen PAST SIMPLE – signal word “yesterday” (it tells us when it happened) has … eat has … eats has … eaten She ____ already ____ breakfast. has … ate PRESENT PERFECT – signal word “already” (for a recently finished action) has leave has left left Bob ____ five minutes ago. leave PAST SIMPLE – signal word “…ago” (it is a finished past action) Did / arrived Did / arrive Have / arrived ____ Mike and Sam ____ from school yet? Has / arrived PRESENT PERFECT – signal word “yet” (we expect something to happen soon) were have was have been I ____ on holidays since Friday . was PRESENT PERFECT – signal word “since” (for an unfinished past action) have … spoken speak has … spoken My teacher ____ just ____with my parents. spoke PRESENT PERFECT – signal word “just” (for a recent event) hasn’t get up haven’t get up didn’t get up He ____ early this morning. didn’t got up PAST SIMPLE – “this morning” is a completed past period (it’s probably after midday now) has … bought have … bought did … buy When ____ she ____ a new car? did … bought PAST SIMPLE– we want to know when something happened Has … had Did … have Have … had ____ you ever ____ a car accident? Did … had PRESENT PERFECT – signal word “ever” (for past experiences) have met have meet met I ____ my wife in 2010. meet PAST SIMPLE – signal word “in 2010” (for a finished past action) B1 Complete it with the correct tenses of the verbs in brackets. have gone left came have tried have won have left didn’t take P89 B2 Complete the diary below with the correct tenses of the verbs in brackets. bought went opened never been have visited have seen bought have read Look at these two sentences. Do you think they are correct? I have bought this book for 3 years. I have bought this book since 3 years ago. I have had this book for 3 years. I have had this book since 3 years ago. buy是瞬间动词，动作短暂，而since+时间点和for+时间段引导的现在完成时表示动作的连续性，buy与之相矛盾，所以应该把buy改为延续性动词have。 The Present Perfect Tense 现 在 完 成 时 用法 结构 标志词/ 时间 状语 标志词的区分 句型 转换 have been to & have gone to 完成时VS 过去时 延续性VS瞬间动词 延续性动词表示能持续一段时间的动作或状态: work，stay，live，learn....等 瞬间动词 & 延续性动词 瞬间动词表示短暂的动作，从开始到结束，几乎同时或在极短的时间里完成: come，go，leave，start，begin，become，receive，die...等 since+时间点和for+时间段引导的现在完成时，必须用延续性动词 当句子包含的时间状语含有since和for时，动作必须用延续性动词。 I have bought the book for a week. I have had the book for a week. buy是瞬间动词 have是延续性动词 瞬间动词----不能和一段时间连用 延续性动词----可以和一段时间连用 They have come here for two days. They have been here for two days. × √ be是延续性动词 come是瞬间动词 × √ have been away 瞬间动词 延续性动词 现在完成时持续状态 die be over leave/go borrow arrive/come/get to/reach open/close end/finish/stop join marry keep be away be here be open/closed be friends be a member of be dead have been dead have kept have been here have been open/closed have been over have been a member of have been friends buy have have had start/begin be on have been on make/become friends be married have been married come back/go back/return be back have been back 转换为延续性动词 be + 形容词/副词 be + 名词（短语） Homework 24 Lavf58.20.100 $$