现在完成时讲解与练习
现在完成时讲解(含讲解及习题)
现在完成时讲解一、构成:肯定式：主语+ 助动词have/has + 动词的过去分词.疑问式：助动词Have/Has + 主语+ 动词的过去分词?否定式: 主语+ 助动词have/has + not + 动词的过去分词.过去分词规则变化：a)一般情况下，直接加ed, （work---worked，water---watered, finish---finished等;）b)以“辅音字母+ y”结尾的动词, 把y 变成i 再加ed, （carry---carried study---studied等;）c)以辅+元+辅结尾且中读的动词，要双写最后一个辅音字母，再加ed。
（stop---stopped，shop---shopped）d)以不发音的e结尾的动词，只加d （过去分词不规则变化表：二、用法：用法一：表示过去（已经、曾经或从未）发生的某一动作对现在造成的影响或结果。
标志词：①already, ②never, ③ever, ④just, ⑤yet, ⑥before,⑦once/twice/数字+ times例：I have cleaned my room. 我已打扫了房间(房间现在是干净的，不需要打扫了)They have left. --他们已经离开了,也就是说现在他们人不在这里I have never had a car (我从未有过汽车。
)I have been there twice.a）already 往往用于肯定句，用在疑问句时表示强调或加强语气；yet 用于否定句和疑问句。
•He has already left here. 他已经离开这里了。
•Has he already left here? 他（真的）已经离开这里了吗？（表示加强语气）•My teachers haven’t had breakfast yet. 我的老师们还没有吃早饭。
•Have you written to your parents yet? 你已经给你父母写过信了吗？b）never 是否定词，表示“从来没有”，而ever 表示“曾经”•We have never been to the Great Wall. 我们从来没有去过长城。
现在完成时及现在完成进行时讲解及练习
一.现在完成时的构成：现在完成时由助动词have（has）+动词的过去分词构成。
has用于第三人称单数,have用于其他各种人称.二.现在完成时的用法：其用法主要有三种I•“已完成”用法：表示一个过去发生并结束的动作对现在造成的影响或结果。
这一类情况可以细致分为下述两种情况。
1）表示开始于过去的动作刚刚结束。
常和just, now, already, yet, not…yet 等不确定的时间状语连用。
Li Ming has just tur ned off the light.李明刚刚把灯关上。
（说明现在灯关上了）I've fin ished my homework now.现在我已经做完作业了。
（说明可以交作业或做别的了）2）表示过去动作的结果，现在仍残留着。
一般不用时间状语。
I have lost my pen.我把笔丢了。
（说明过去某时丢的，现在我还没找到这支笔）She has become a teache她已经当了老师。
（说明她现在仍是老师）II•“未完成”用法。
表示动作或状态从过去某时开始，持续到现在，可能继续下去，也可能刚刚结束。
常和表示一段时间的状语连用。
如today，this week （mon th），lately，rece ntly，these days in the past few days duri ng the last two weeks, si nee, since yesterday since 2 days ago since 1991, for a long time，for a month, so far, up to now, till （until）now 等。
He has lived here for 30 years他住在这儿三十年了。
（现在还住在这儿）They've known each other si nee childhood他们从小彼此相识。
人教版英语八年级下册 Unit 9 现在完成时讲解及练习
八下unit 9现在完成时（二）语法讲练含been, ever, never的现在完成时，been是be动词的过去分词，ever(曾经)，never(从不，未曾)一般作副词。
been在完成时中，常以have been的形式出现，常见的有以下几种用法：考点1 have been to＋地点考点2 当have been to后面接副词，如here, there, home时，to要省略。
变为have been here/there/home。
你去过那儿吗？”there前不加to。
考点3 have been in＋组织，表示加入某组织。
He has been in the army for 3 years.他参军三年了。
考点4 have been＋adj./n.呈现……状态The shop has been open for 10 years. 这家店营业十年了。
We have been friends since we were 5. 我们从5岁起就一直是朋友。
考点5 ever, never常与现在完成时连用，是现在完成时态的提示词。
ever adv.曾经；在任何时候never adv.从未—Have you ever been there？你曾去过那里吗？—No, I have never been there before. 不，我以前从未去过那里。
考点6表示过去已经开始，持续到现在的动作或状态。
此时常与“for+一段时间”或“since+过去的点时间或从句（从句用一般过去时）”以及so far（到目前为止）等时间状语连用。
I’ve lived here since 2000.自从2000年我就住在这里。
=I’ve lived here since 13 years ago.=I’ve lived here for 13 years.=It is 13 years since I began to live here.注意：①在这类句子的肯定句和疑问句中谓语动词必须用延续性动词。
牛津译林版英语八下_Units 1-3 现在完成时语法讲解和练习
8BUnit1-3现在完成时语法（完整讲解）和练习（含答案）一、现在完成时讲解8BUnit1语法1. 构成：have / has + 动词过去分词2. 意义1）过去开始一直延续到现在的动作或状态。
She has lived here since she was born.You have studied in this school since 2014.I have taught English for 18 years. (注意：动词必须为延续性动词)2）发生在过去，对现在有影响的动作。
I have lost my key, so I can’t get into my house.Who has cleaned the window? It’s really clean.The bus has left, you must wait for the next one.I have seen the film. I won’t see it tonigh t.3）到目前为止，事情发生的次数。
I have already read this book many times.My uncle has been to France twice.How many times have you been to Beijing?★现在完成时的不同句式：1) She has lived in Wuxi since 2002.→Has she lived in Wuxi since 2002? Yes, she has./ No, she hasn’t.→She hasn’t lived in Wuxi since 2002.→How long has she lived in Wuxi?2) They have been to Shanghai three times.→Have they been to Shanghai three times?Yes, they have./ No, they haven’t.→They haven’t been to Shanghai three times.→How many times have they been to Shanghai?3.完成时常和以下时间状语连用：1)already 已经肯定句/ 特殊疑问句yet 还，仍否定句/ 一般疑问句She has already finished her homework. 句中She has finished her homework already.句末Has she finished her homework yet? 句末She hasn’t finished her homework yet. 句末2) ever 曾经肯定句/ 一般疑问句never 从未否定句I have ever seen the film. （肯定句）Have you ever seen this film? （一般疑问句）I have never seen the film. （否定句）3) since 自从+ 过去的时间点/ 一般过去时从句for 长达+ 一段时间（表示过去开始一直延续到现在的动作或状态）我爸爸在这住了二十年了。
英语现在完成时和过去完成时综合讲解及练习
现在完成时现在完成时构成：主语+ have/has + P.P. (过去分词)一．表示过去已经开始，持续到现在的动作或状态，往往和表示一段时间的状语连用。
（1） He has learned English for about 7 years.（2） They have lived in Beijing ⎪⎩⎪⎨⎧.sin .2000sin .10there came they ce ce years for（3） My uncle has taught in that school ⎩⎨⎧.2000sin .10ce years for 对划线部分提问：How long has your uncle taught in that school?(4) A: How long has your father worked in that company?B: He has worked there ⎪⎩⎪⎨⎧.sin .1990sin .20army the left he ce ce years for注意：① 一次性动词可以有完成时，但不能与for 或since 等表示一段时间的状语连用。
②要想和一段时间连用，需要把一次性动词转换成相应的延续性动词。
如：come —be here, go —be away, borrow —keep, buy —have,join —be a member of, get to know--know(1) ⎩⎨⎧.2'.2'years about for pen the had ve I years about for pen the bought ve I (2) ⎩⎨⎧.2.2years for member League a been has He years for League Youth the joined has He (3)(4)注意:否定句例外：(5) A ：Hello! I haven ’t seen you for a long time. How are you?B: I ’m fine, thank you. And you?A: I ’m fine, too.二．表示过去发生的某一动作对现在造成的影响或结果。
现在完成时讲解及练习(已用)
一．基本结构：助动词have/has+过去分词(done)二．句型：否定句：主语+have/has+not+过去分词+其他.一般疑问句：Have/Has+主语+过去分词+其他.三．用法（1）现在完成时表示过去发生或已经完成的动作对现在造成的影响或结果I have spent all of my money.(含义是:现在我没有钱花了.)They have come here. (含义：他们现在在这儿)（2）现在完成时可以用来表示发生在过去某一时刻的,持续到现在的动作或状态，常与for 和since连用①for+时段②since+过去一个时间点（译为：自从……以来）③since+时段+ago④since+从句（过去时）⑤It is+时段+since+从句（过去时）Mary has been ill for 3 days. (since 3 days ago)I have been in the university since 2002.四．has gone (to),has been (to), has been (in) 的区别Have/Has gone(to) :去了(现在不在说话现场)Where is your father？He has gone to Shanghai.Have/Has been (to) :去过（已不在去过的地方）My father has been to Shanghai.Have/has been in：呆了多久（还在所呆的地方）My father has been in Shanghai for two months. /since two months ago.五．现在完成时的标志现在完成时的含义是过去已经完成的动作对现在仍有影响,用以下四大标志词可以表达这种含义: ★以already, just和yet为标志He has already got her help. 他已得到她的帮助。
现在完成时专项讲解及练习
时态专题之现在完成时第一部分：现在完成时概述现在完成时的结构：现在完成时的结构是“ have / has+ 动词的过去分词”。
过去分词的变化分规则与不规则两种。
规则变化与过去式相同，不规则变化需要另记。
现在完成时的用法：1）过去发生或已经完成的动作或存在的状态对现在造成的影响或结果。
（即它的＂完成用法＂）e.g. I have just cleaned the classroom.2)过去已经开始，一直持续到现在的动作或状态。
注意：此时动作可能还要继续。
（即它的＂未完成用法＂）。
E.g. He has lived in Beijing for ten years.现在完成时的句型变换A. 现在完成时的否定句是在have / has后边加not，变一般疑问句是把have / has提前。
E.g. I have ridden a horse.I have not ridden a horse.Have you ridden a horse?B.现在完成时的时间状语通常为already, just, yet, ever, never, before等。
另外还可和since+表过去的时间点，for+时间段连用。
做题时常见错误如下：一、易丢掉have / has例：He taken (take) the medicine before.Correction：________________解析：have/has 为助动词，起构成时态的作用，是不能省略的。
二、have与has易用混例：I has never heard (hear) of that before.Correction：________________解析：现在完成时与一般现在时一样也有单三人称的变化，当单三人称作主语时用has, 一般人称作主语时用have．三、延续性动词与短暂性动词易弄错例：She has left (离开) for 2 hours.Correction：________________解析：在肯定句中，与since或for引出的时间状语连用的是延续性动词，不能是短暂性动词，但在否定句中短暂性动词也是可以的。
现在完成时讲解及练习
现在完成时1．概念:过去发生或已经完成的动作对现在造成的影响或结果,或从过去已经开始，持续到现在的动作或状态。
2.时间状语：recｅnｔly，lａｔely，sinｃe…foｒ…,in tｈeｐａst few years，ｅｔｃ.3.基本结构:haｖｅ/has+ ｄone ４.否定形式:have/has +nｏt +done.5.一般疑问句：hａｖｅ或ｈas提前６.它主要适用于下面的几种情况：１)表示截止现在业已完成的动作Ｂｙｎoｗ,I have collecteｄall ｔｈe dａta that Ｉnｅed .到现在为止,我已收集到了我所需的全部资料。
Ｓhe hａs rｅad １50 pages today .她今天已看了１50页。
2）表示发生在过去而对现在产生影响、带来结果的动作Ｈavｅyoｕhad yｏur diｎner? 你吃晚饭了吗？３)表示过去发生的动作持续到现在,并可能还要延续It has been five yearｓsinｃe he joinedｔｈe army .他参军五年了。
1)一个句子应该用什么时态只能取决于它需要表达的意思,以及它所处的语言环境。
例如:Ｈe ｓpeaks Eｎglish .(一般现在时,说明动作发生的经常性。
）He ｓpoke Enｇlish when ｈe wａs iｎNew Zｅａｌaｎｄ.(一般过去时,说明动作发生的时间。
）He is spｅａｋing Ｅnglisｈ.（现在进行时，说明动作正在进行。
）Heｈas ｓｐokｅn Ｅnglｉsｈfｏｒｔhree yeaｒs siｎce hｅcaｍe toｔhe USA.(现在完成时，这里说明动作的总和。
）2）在含有时间状语从句或条件状语从句的主从复合句中,如果主句的谓语动词是一般将来时，那么从句的谓语动词就只能用一般现在时来表示将来时；如果主句的谓语动词是过去将来时,那么从句的谓语动词就只能用一般过去时来表示过去将来时。
现在完成时语法讲解与练习题
现在完成时语法讲解与练习题20XX年初二英语现在完成时语法讲解与练习题□□□:号20XX年初二英语现在完成时语法讲解与练习题考现在完成时（I）第八单元语法知识:名姓现在完成时的构成及句型结构：（注：过去分词的变化分规则变化与不规则变化，规则变化与动词原形变过去式一样，不规则变化见教材137页）1.肯定句：主语+have/has+过去分词+其他+时间.eg: I have already lost the key. 我已经弄丢了钥匙. (我现:在没有钥匙)级班He has ever read that book . 他曾经看过这本书. (了解书的内容)They have just cleaned their hands. 他们刚刚洗过手了.(手是干净的)2.否定句：主语+haven’t/ hasn’t+过去分词+其他+时间.eg: I haven’t lost the key yet.He hasn’t ever read that book .They haven’t just cleaned their hands. 3.一般疑问句：Have/Has+主语+过去分词+其他+时间？肯定回答：Yes, 主语+have/ has. 否定回答：No, 主语:校+haven’t/hasn’t.学eg: Have you already lost the key? Yes, I ha ve. No, I haven’t. Has he ever read the book? Yes, he has. No, he hasn’t. Have they just cleaned their hands? Yes, they have. No, they haven’t.4.特殊疑问句：特殊疑问词+have/has+主语+过去分词+其他+时间？eg: What have you already done? （done是do/does的过去分词）What has he ever done? What have they just done?（她已经学习五年英语了）解释：一直在学，持续了五年，并且还可能持续学下去.He has lived in Beijing since he was born . （自从他出生以后就居住在北京）解释：从出生后就一直住在北京，持续到现在，还有可能一直住下去）Have you stayed here since 3 o’clock? （自从3点后你就一直呆在这儿吗？）例题：选用for和since填空:1. We haven’t seen each other ___ a long time.2. His father has been in the factory ____ 10 years ago.3. The film has been on ____ 20 minutes.4. Mr. Green has worked here _____ he came to China.5. His grandparents have been dead _____ several years.6. It’s five years ______ we met last time.7.I have already had dinner. （改否定句）I _______ _______ dinner_______. 8. Mum has cooked the dinner.（改否定句）Mum _______________ the dinner.9. Susan has learned English at school. （改否定句）Susan________ ________English at school.（对划线部分提问）_______ _______ ________20XX年初二英语现在完成时语法讲解与练习题_________ _______?11. He has just （对划线部分提问）_______ _______ _______ ________ ________?（对划线部分提问）_______ _______ ________ ________ _______?（对划线部分提问）_______ ________eg: I have already seen the film. （现在完成时，已经看了这部电影，并且知道电影的内容）I saw the film last week. （一般过去式，因为后面有表示过去的时间状语last week）He has lived here since 1993. (现在完成时，后面有since引导的时间状语从句)He lived here in 1993. （一般过去时，1993年住在这儿，现在没住在这儿了）例题：1. _____ you ________(clean) the room? Yes, we__________(do) thatalready.2. When _______ you ______(do) it? We _______(do) it an hour ago.3. ______ he ______(see) this film yet? Yes.4. When _____ he _____(see) it? He______ it last week.5. I _______ (read) the novel twice. It’s interesting.6. Mr. Chen _________(give)up smoking last year.7. She _____(go) to Pairs, hasn’t she? Yes. How ____ she ____(go) there? She ____(go) there by air.现在完成时（II）第九单元语法知识1. (been是be的过去分词，不规则变化)2. 基本句型：(1)肯定句：主语+have/has+ been+ to+地点. eg: I have been to Australia. They have been to Beijing. He has been to South Africa.(2)否定句：主语+haven’t/hasn’t+ been+ to+地点. eg: I haven’t been to Australia. They haven’t been to Beijing. He hasn’t been to South Africa.(3)一般疑问句：Have/Has+主语+been + to+ 地点？肯定回答：Yes, 主语+ have/has. 否定回答：主语+haven’t/ hasn’t. eg: Have you been to Australia? Yes, I have. No. I haven’t. Have they been to Beijing? Yes, they have. No, they haven’t. Has he been to South Africa? Yes, he has. No, he hasn’t.（4）特殊疑问句：特殊疑问词+have/has+ 主语+ been?eg: Where have you been? Where have they been? Where has he been?3.用法：用来表示之前已经发生和完成度的动作与状态，其结果却和现在有联系.动作和结果发生在过去，但它的影响现在还在.可以和never, ever, once, twice, th ree/four…times 等副词连用.20XX年初二英语现在完成时语法讲解与练习题eg: They have been to Chongqing twice. I have never been to Sichuan. Has she ever been to Hainan?10分钟了。
现在完成时讲解及练习(附答案)-名师精讲(新)
现在完成时先看几个例句：1. I have cleaned my room. 我已打扫了房间。
2. He hasn’t finished his homework. 他还没完成作业。
3. Have you read this novel ? 你看过这本小说吗？Yes , I have. 是的，看过了。
No, I haven’t. 不，没看过。
4. We have studied English for two years.我们已经学了两年英语了。
5. They haven’t seen each other since 1998.自从1998年他们就没再见过面。
一、构成:肯定式：主语+ 助动词have/has + 动词的过去分词.疑问式：助动词Have/Has + 主语+ 动词的过去分词?否定式: 主语+ 助动词have/has + not + 动词的过去分词.例：I have worked here for 3 years.否定句：疑问句：回答：就划线部分提问：过去分词的构成分为规则变化和不规则变化两种：规则变化:a) 一般情况下，在动词后直接加ed, 如play---played， work---worked，water---watered, finish---finished等;b) 以“辅音字母+ y”结尾的动词, 把y 变成i 再加ed, carry-- -carried study---studied等;c) 以一个辅音字母结尾的重读闭音节的动词要双写最后一个辅音字母，再加ed 如: stop---stopped，shop---shopped等。
不规则变化：见一般时当中的不规则动词表点击→不规则动词表写出下列动词的过去分词：put--- hear--- come---make--- hurry--- watch---swim--- be--- talk---want--- study--- stop---take--- see--- like---二、用法：1.表示过去发生的某一动作对现在造成的影响或结果。