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在完成一、在完成构成构成：在完成由助have + 去分构成，助have 有人称和数的化。
第三人称数用has，其余用have.在完成的否定式直接在助后面加上not、疑式是把助提到主之前。
以study 例，其否定式、疑式和回答形式如下：否定式疑式I have not (haven ’ t) studied ⋯. Have I studied ⋯?You have not (haven ’ t) studied ⋯. Have you studied ⋯?He has not (hasn ’ t) studied ⋯. Has he studied ⋯?否定疑式回答（肯定 /否定）Have I not (Haven ’ t I) studied ⋯? Yes, you have. No, you haven ’ t.Have you not (Haven ’ t you) studied ⋯?Yes, I have. No, I haven ’ t.Has he not (Hasn ’ t he) studied ⋯? Yes, he has. No, he hasn’ t.二、在完成用法1、在完成通常表示在之前已完成的作或存在的状。
人的是作或状在的果或影响。
My daughter has just gone out.我女儿出去。
I ’ m sure we’ ve met before我肯.定我以前面。
She has arrived. 她到了。
2、表示持到在的作或状，往往和包括在在内的表示一段的状用，如recently, already, just, lately, for⋯, sinceyt等⋯,。
如：I haven’ t heard from her these days.些日子我没有收到她的信。
We haven ’ t seen you recently.最近我没有到你。
They have been away for two years.他离开已两年了。
现在完成时详解现在完成时是英语中的一种时态，用于表达与现在有关的过去动作或经历。
它由"have/has" + 过去分词构成。
一、用法：1. 表示过去发生的动作与现在的结果或影响。
例句：I have lost my key.（我把钥匙丢了，现在找不到了。
）They have finished their homework.（他们已经完成了作业。
）2. 表示从过去某一时间开始，一直持续到现在的动作或经历。
例句：She has lived in London for five years.（她在伦敦生活了五年了。
）We have known each other since we were kids.（我们从小就认识对方。
）3. 表示过去某一时间内发生的动作，但具体时间并不重要。
例句：Have you ever eaten sushi?（你吃过寿司吗？）He has traveled to many countries.（他去过很多国家。
）4. 表示刚刚发生的动作。
例句：I have just finished my dinner.（我刚吃完晚饭。
）Sorry, I have already booked the tickets.（抱歉，我已经订好票了。
）二、构成：现在完成时的构成是由助动词"have/has"加上过去分词形式构成的。
根据主语的人称和数的不同，使用不同的助动词形式。
1. 当主语为第一人称单数（I）或第三人称单数（he/she/it）时，使用"has"。
例句：She has studied English for two years.（她学习英语已经两年了。
）I have visited the museum.（我参观过博物馆。
）2. 当主语为第二人称单数（you）或任何人称的复数形式时，使用"have"。
例句：You have seen this movie before, haven't you?（你以前看过这部电影，是吗？）They have finished their work.（他们已经完成了工作。
【最新整理，下载后即可编辑】现在完成时讲解一．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.简略答语: Yes, 主语+ have/has.(肯定)No, 主语+ haven't/hasn't.(否定)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 (so far).(含义是:现在我没有钱花了.)Guo zijun has (just/already) come. (含义：郭子君现在在这儿)My father has gone to work.(含义是:我爸爸现在不在这儿)（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（用行为动词表示）或状态（be动词表示）常与for（+时间段）,since（+时间点或过去时的句子）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 three days.I have lived here since 1998.四．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1. 现在完成时的含义之一是过去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。
（完整版）现在完成时讲解（含讲解及习题）（可编辑修改word版）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。
英语现在完成时讲解英语中的现在完成时（present perfect tense）是用来描述过去发生的动作或情况与现在的关系的一种时态。
它通常用来强调过去发生的事情对现在产生的影响或结果。
在本文中，我们将详细讨论现在完成时的使用情况及其构成方式。
一、现在完成时的构成方式现在完成时的构成方式是由“助动词have/has + 动词的过去分词形式”组成。
具体使用有以下几种情况：1. 肯定句主语 + have/has + 过去分词 + 其他部分例如：- I have studied English for five years.（我已经学习英语五年了。
）- She has travelled to many countries.（她已经去过很多国家了。
）2. 否定句主语 + have/has + not + 过去分词 + 其他部分例如：- He hasn't finished his work yet.（他还没有完成工作。
）- We haven't seen each other for a long time.（我们已经很久没有见面了。
）3. 疑问句Have/Has + 主语 + 过去分词 + 其他部分?例如：- Have you ever visited Paris?（你曾经去过巴黎吗？）- Has she seen the latest movie?（她看过最新的电影吗？）二、现在完成时的使用情况现在完成时通常用于以下几种情况：1. 表示过去开始的动作一直延续至今或刚刚结束的情况。
例如：- I have lived in this city for ten years.（我在这个城市已经住了十年了。
）- They have worked on this project since last month.（他们从上个月开始就一直在做这个项目。
）2. 表示过去发生的动作对现在产生的影响或结果。
现在完成时知识讲解(总5页) -CAL-FENGHAI.-(YICAI)-Company One1-CAL-本页仅作为文档封面，使用请直接删除专项语法讲练——现在完成时【概念引入】如何学习时态对中学生来说，最好还是从各个时态的基本概念、基本形式和基本用法学起。
在过了这一阶段之后，再放开步伐，通过大量的听、读和笔头实践，获得感性的知识。
现在，我们就从最基本的概念、形式和用法等方面来总结一种新的时态——现在完成时。
【用法讲解】一、现在完成时的定义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。
二、现在完成时的构成1. 肯定句现在完成时的肯定句式是“have（has）＋过去分词”。
注意：该句式中的have或has是助动词，has用于第三人称单数，其它人称一律用have。
2. 否定句：现在完成时的否定句式是“haven’t（hasn’t）＋过去分词”。
3. 疑问句：现在完成时的一般疑问句式是把助动词have或has提到主语之前。
回答用Yes, …have(has)./ No, …haven’t(hasn’t).三、动词过去分词规则变化与不规则变化(一) 规则变化变化规则：与动词过去式规则相同。
1. 一般直接在词尾加上ed。
look — looked2. 以e结尾的动词，直接加d。
move — moved3. 以y结尾，y前面是辅音字母的动词，变y 为i，再加ed。
carry — carried4. 部分动词需双写尾字母，加ed。
stop — stopped(二)不规则变化不规则动词的变化因词而异。
但是如果对不规则动词的过去式和过去分词做一分析，就可发现其中的“规则”。
同学们在记忆时，可按下面的形式对教材后不规则动词表进行分析、整理。
例如：AAB型AAA型ABA型ABB型四、现在完成时的用法现在完成时表示过去某时发生的行为对主语目前产生的影响。
即用过去发生的某个行为来说明现在的某种情况。
现在完成时的用法_现在完成时现在完成时有两种主要用法，即已完成用法（或影响性用法）和未完成用法（或持续性用法）。
具体用法如下：1. 影响性用法该用法表示某个动作发生于过去，完成于过去，但这这个过去发生并完成的动作对现在有影响或结果，同时说话者强调的或感兴趣的就是这个影响或结果。
如：He has gone home. 他回家去了。
（其影响或结果：现在不在这里）I have seen the film. 我看过这部电影。
（其影响或结果：我知道其内容）He has finished his homework. 他完成作业了。
（其影响或结果：可以做其他事情了）2. 持续性用法该用法表示某动作发生于过去，但并未在过去完成，而是一直持续到现在，并且有可能继续下去（也可能到此结束）。
如：He has been blind from birth. 他生下来就双目失明。
He has lived here for five years. 他已在这儿住了5年。
He has worked in films all his life. 他在电影界干了一辈子。
3. 重复性用法该用法表示在过去反复发生的动作，并且这个反复的动作一直延续至今。
如：My father has always gone to work by bike. 我父亲一向骑车上班。
I have always found him difficult. 我老是感到他这人很难相处。
4. 将来性用法该用法主要见于时间或条件状语从句中，用以表示一个将来完成的动作。
如：Ill tell you when Ive finished. 我完成的时候会告诉你。
If she hasnt gone to bed when you see her, tell her to give me a ring. 如果你见到她时她还睡觉，让她给我打个电话。
现在完成时讲解一．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.简略答语: Yes,主语+ have/has.(肯定) No,主语+ haven't/hasn't.(否定)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 (so far).(含义是:现在我没有钱花了.)Guo zijun has (just/already) come. (含义：郭子君现在在这儿)My father has gone to work.(含义是:我爸爸现在不在这儿)（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（用行为动词表示）或状态（be动词表示）常与for（+时间段）,since（+时间点或过去时的句子）连用. ①for+时段 ②since+过去一个时间点（译为：自从……以来） ③since+时段+ago ④since+从句（过去时） ⑤It is+时段+since+从句（过去时）Mary has been ill for three days. I have lived here since 1998. 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 1. 现在完成时的含义之一是过去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。
He has just seen the film. 他刚刚看过这场电影。
He hasn't come back yet. 他还没有回来。
*以ever和never为标志 This is the best film I have ever seen. 这是我曾经看过的最好的一部电影。
He has never been to Beijing. 他从没有到过北京。
*以动作发生的次数为标志 He says he has been to the USA three times.他说他已经去过美国三次了。
*以so far（到目前为止）为标+before He has got to Beijing so far. 到目前为止他已到了北京。
She has passed the exam so far. 到目前为止她已经通过了考试。
2.过去已经开始的动作一直延续到现在,甚至有可能继续延续下去,我们可以从动作“延续”的特性和“时间”点段的区分入手,进一步学习现在完成时。
* ①for+时段②since+过去一个时间点（过去从句）为标志注意：1)现在完成时不能单独与过去的时间状语连用,如yesterday, last week, three years ago等;2)不能与when连用 2.现在完成时往往同表示不确定的过去时间状语连用现在完成时用来表示之前已发生或完成的动作或状态,但它的影响现在还存在；也可表示持续到现在的动作或状态.其构成：have (has) +过去分词.规则变化的过去分词与过去式的变化一样,在动词词尾加ed;不规则变化的过去分词见不规则动词表,需要同学记忆.现以see the film为例将现在完成时的肯定句,否定句和疑问句列表如下：肯定句：I/You/We/They have seen the film. He/She /It has seen the film.否定句：I/You/We/They have not/ haven’t seen the film.He/ She/It has not/hasn’t seen the film.疑问句：Have I/you/they seen the film? Yes, you/ we/I/they have. No, you/ we/I/they haven’t.Has he/she/it seen the film? Yes, he/ she/ it has. No, he/ she/ it hasn’t.二、用法：现在完成时既涉及过去,又联系现在.用法一：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.常与just（刚刚）,already（已经）,never（从来没有）,ever（曾经）,before（以前）,yet（仍然）,once（一次）,twice（两次）,manytimes（很多次）,how many times（多少次）,so far（迄今为止）,during the past（last）three years（最近三年来）等连用.※副词的位置：①just常用于肯定句中,放在have / has后,He has just come .②never表示否定,放在have / has后, He has never visited the Great Wall.③ever用于疑问句中,句型为: Have / Has＋主语＋ever＋过去分词?“…曾经……过吗?”用于询问某人过去的经历.Have you ever been to the farm?④before用于句末,The woman has never heard of that before.⑤yet用于句末或not之后.Has the train arrived yet? No, not yet.⑥already用于肯定句, have / has之后或句末.We have already finished it.⑦so far用于句首或句末. So far, we have visited the moon.用法二：表示过去已经开始,一直延续到现在的动作或状态.时间状语有：①for＋表示一段时间的词语I have taught English for 19 years.②since＋表示过去时间点的词语He has been at this school since 1986.③since＋表示过去的时间状语从句I have lived here since I was born.④since＋一段时间＋ago. I have known him since 20 years ago.三、现在完成时态中可以和表示一段时间状语（for,since,how long, all one’s life）连用的动词必须是表示延续的情况或动作的动词,即延续性动词.如：be,have,know,live,work,study,learn,teach,keep,speak,talk,draw,wait,wear,walk,sleep,drive,write,do,clean等.I have been a teacher for nearly 20 years. How long has he lived here?四、延续性动词的现在完成时可和包括“现在”在内的（到说话时仍未结束）表示一段时间的状语连用.如this morning,today,this week,these daysHe has been to Beijing three times this year. He has written two letters this morning.（说话时间在上午）He wrote two letters this morning.（说话时间在下午或晚上）五、英语中还有一些动词的意义决定它们所表示的动作不能延续,只是一瞬间就结束的动作,这类动词叫做“非延续性动词”,常见的有：come,go,arrive,reach,see,hear,close,open,leave,begin,start,lose,buy,fall,join,die,getup,become,borrow,lend,find,finish,receive等.这些动词可用于现在完成时,说明某个动作的结果还存在,但不能和表示一段时间的状语（how long,for,since）连用.He has come back.（√）He has come back for two hours.（×）※但在否定句中,非延续性动词也可用表示一段时间的状语来修饰,如I haven’t heard from my father for a long time. We haven’t seen him since 1999.六、当终止性动词（非延续性动词）与表示一段时间的状语（how long,since,for, all one’s life）相矛盾时,改正错句的方法有如下几种:（1）用副词ago把现在完成时的句子改为一般过去时.He has come back for two weeks.（错）改为:He came back two weeks ago.（正）I have lost my bike for ten days.（错）改为:I lost my bike ten days ago.（正）（2）用“It is / has been＋时间＋since＋一般过去时态”句型来改写.He has joined the League for 3 years.（错）It is 3 years since he joined the League.I have bought the book for 5 days.（错）It is 5 days since I bought the book.（正）He has died for 20 years.（错）It is 20 years since he died.（正）（3）用“时间＋has passed＋since＋一般过去时态”句型来改写.He has left home for 20 years.改为:Twenty years has passed since he left home.He has lost his pen for 2 days.改为:Two days has passed since he lost his pen.（4）用系表结构来改写.He has died for 20 years.改为: He has been dead for 20 years.The factory has opened since 1999.改为:The factory has been open since 1999.How long has he left?改为:How long has he been away?（5）用相应的延续性动词替代非延续性动词.He has bought the book for two weeks.改为:He has had the book for two weeks.常见的相应转换形式如下:borrow / lend→keep, buy→have, finish / end→be over, arrive /come / go / move / reach /get to→be in /at / be here /be there, begin / start→be on , open→be open , close→be closed, die→be dead , leave→be away（from）,go to school→be in school / be a student, get up→be up, fall asleep→be asleep , fall ill→be ill, get to know→know, lose→be lost, become→be, return / come back / get back→be back, join→be in / be a…member, join the army→be in the army /be a soldier, receive / get a letter→have a letter , catch / get a cold→have a cold, begin to study→study,他参军已有三年.He has joined the army for three years.（错）改为:He has been in the army for three years / since three years ago.He has been a soldier for three years / since three years ago.He joined the army three years ago.It is three years since he joined the army.Three years has passed since he joined the army.（1）He came to our village two years ago.=He our village since two years ago.（2）He left home three days ago=He home for 3 days.（3）I bought the watch 2 weeks ago=I the watch since 2 weeks ago.（4）It is 5 days since I borrowed the book=I the book for 5 days.（5）The film has begun= The film for half an hour.（6）I got to know him 10 years ago=I him for 10 years.（7）There is a factory=There a factory for 20 years.（8）Our school opened in 1960=Our school since 1960.七、现在完成时中应注意的几个问题1. have been to和have gone to的区别have been to强调“去过”,现已不在那里,如：He has been to the USA three times.他到美国去过三次.（过去“到美国”,现在已“不在美国”）have gone to主要强调的是“去了”,现在人不在说话的现场,如：--Where's your mother? --你妈妈在哪?--She has gone to the hospital. --她去医院了.2. have been to和have been in的区别have been to强调人“已回到原地”,后面可接表示“次数”的状语.①She has been to Shanghai only once.②--How many times has he been there? --He's been there many times.have been in表示某人“已在某地停留一段时间,现仍在那里”,其后常带表示一段时间的状语.①They have been at the bus stop for half an hour.他们在车站呆了半小时.（现在仍然在车站）②We have been in Xi'an for two weeks.我们在西安呆了两个多星期.（现仍在西安）③How long have they been in China?他们在中国呆了多长时间了?（仍在中国）八、如何通过与一般过去时做比较,进一步掌握现在完成时?一般过去时和现在完成时的动作都发生在过去,但意义却不同.（1）一般过去时只表示过去的动作或状态,和现在不发生关系.现在完成时表示过去发生的某一动作对现在造成的影响,强调的是现在.如:I learned ten English songs（说明过去学过,现在是否记得,不是本句的内容）I have learnt ten English songs.（learn发生在过去,但强调我现在懂英语歌曲）I cleaned the blackboard half an hour ago.（只说明“擦”和其发生的时间）I have cleaned the blackboard.（说明现在黑板是干净的）The teacher has written some new words on the blackboard（黑板上现在有单词）The teacher wrote some new words on the blackboard（黑板上现在没有单词）（2）一般过去时可以和表示过去的时间状语连用,如:yesterday, last year, three days ago, just now,等.现在完成时不能和表示过去的时间状语连用,其时间状语可以是since…,for… , just, ever, never, before, already, yet , so far, all one’s life等八、规则动词的过去分词和它的过去式相同,即在原形后加－ed（－d）.已学近80个不规则动词的过去分词约有半数也和它的过去式相同,分类如下,利于记忆:1)原形中的元音字母有变化:get-got-got, sit–sat-sat win-won-won spit- spat- spat shine–shone- shonefind- found- found hold-held-held meet- met-met stand- stood-stoodunderstand-understood-understood feed- fed-fed hang-hung-hung2)原形中的辅音字母有变化:make-made-made spill-spilt-spilt have/ has-had-had build-built-builtsend-sent-sent lend- lent- lent spend-spent-spent3)在原形后加t或 d:spoil-spoilt-spoilt learn-learnt-learnt mean-meant-meant hear-heard-heardpay-paid-paid say-said-said lose-lost-lost lay-laid-laid4)原形中的元音字母和辅音字母都有变化:feel-felt-felt smell-smelt-smelt spell-spelt–spelt keep-kept-keptsleep-slept-slept sweep-swept-swept leave-left-left sell-sold-soldtell-told-told catch-caught-caught teach-taught-taught buy-bought-boughtbring-brought-brought think-thought-thought wear-wore-worn5)与原形相同:hit-hit-hit hurt-hurt-hurt let-let-let put-put-put read-read-readset-set-set shut-shut shut cost-cost-cost cut-cut-cut还有些不规则动词的过去分词与过去式不相同,为便于记忆,也分类如下:1)原形中的元音字母有变化:ring-rang-rung sing-sang-sung drink-drank-drunk swim-swam-swumbegin-began-begun sink-sank-sunk2)在原形上加－en:eat-ate-eaten fall-fell-fallen ride-rode-ridden write-wrote- writtenbe-was/were-been rise-rose-risen forget-forgot-forgotten3)在原形上加－n:see-saw-seen give-gave-given drive-drove-driven take-took-takenmistake-mistook-mistaken draw-drew-drawn blow-blew-blowngrow-grew-grown know-knew-known show-showed-shown throw-threw-thrown4)在过去式上加－n:steal-stole-stolen break-broken–broken choose-chose-chosen speak-spoke-spoken wake-woke-woken6)与原行相同:come-came-come run-ran-run become-became-become7)原形、过去式和过去分词都不相同的:do-did-done go-went-gone fly-flew-flown lie-lay-lain个别动词有两个过去式和过去分词,一个为规则变化,另一个为不规则变化:learn-learned-learned shined-shined smell– smelled-smelledlearnt-learnt shine shone-shone smelt-smeltwake -waked-waked spelled-spelledwoke-woken spell -spelt–spelt【典型例题】1.— Oh, Mrs. King, your necklace looks nice. Is it new?— No, I ____ it for two years.A. hadB. have hadC. boughtD. have bought2. His grandfather _____ for over two years.A. has diedB. has been deadC. has deadD. died3.Uncle Li can speak English very well because he _____ England for 5 years.A. has gone toB. has been toC. has come toD. has been in4.— Where is Mr. Zhang?— He _____ London.A. has been toB. has beenC. has goneD. has gone to5.— _____ to the United States?— No, never, but I went to Canada a few years ago.A. Have you beenB. Have you goneC. Did you goD. Will you go6. I haven’t seen you _____ last Friday.A. forB. sinceC. fromD. on7.— John, you ____ the computer game for two hours. It’s bad for your eyes. Stop, please!— OK, Mum.A. playedB. have playedC. were playingD. play8.I won’t go to the concert because I _____ my ticket.A. lostB. don’t loseC. have lostD. will lostExercise: Fill in the blanks with the right verb tense:1. It（rain）for a week.2. I don’t know this woman. I3.－Let’s go to the cinema.－No, I4. We（meet, never）her.（see, already）the film.（finish, not）our homework yet. Will you wait a minute?（come, not）yet. He will be back in a minute.5. John6. Mr. Green often goes to America. In fact, he（be）there ten times.（go）to the teachers’ office.7.－Where’s John?－He just8. She（study）English since she was ten. She（begin）to study English when she was ten.9. Jim isn’t here. He（go）to the library. He（go）there an hour ago.10. He（travel, never）on a train in her life.11. I（buy）the bike two weeks ago. I（have）it for two weeks.（have）this bike since the beginning of thismonth. I12. Great changes（take place）in those villages in the last ten years, Great changes （take place, also）in my home－town in the last ten years.13. How many times you （phone）me these days?（phone）me this morning?You14. Tom can’t get into the room because he（lost）the key to the door.15. I（look）for the dictionary, but Ithe new programmes （start）yet?（find not）it yet.16.－－No, they 18. We（plan,still）（live）in Shanghai from 1989 to 1999. We（live）for 10 years.19. They can’t go with us. They（finish, not）the work yet.20. You（change, not）your mind, haven’t you?21.We must pay for the library book if we22. He has already finished his homework.（改为否定句）（lost）it.He finished his homework .（be）to Japan once.23.－I hear your father－Yes. He（go）there last year.（buy）the book?－I24.－When you25. Such a thing （have）it for two weeks.（happen, never）in the village before.现在完成时态1have / has +done,请注意与一般过去式的区别I have already worked out this math problem? (改为否定句)I worked out the math problem .He has already finished the book.(改一般疑问句并做肯定否定回答)he the book ? Yes, he. No, he.I have got a book. (改一般疑问句并做肯定和否定回答)you a book? Yes, I . No, I.He has got a book. (改一般疑问句并做肯定和否定回答)he a book? yes, he .No, he. You have done your homework, you ?(改为反意疑问句)He has never been abroad, he? (改为反意疑问句)We have got little milk, we? (改为反意疑问句)Jim has got a pen. Lucy has got a pen too.(改为同义句) Jim has got a pen, Lucy.I think you never you(hear) such a thing. (know) where your sister has (go)?(be) all right soon.I think youIf you I(lose) a book, you (pay ) for it.(tell) you about the accident as soon as I( read) the book yet?(finish) the work.youTom just (find) his cat.He I (not see) the film yet. So he see) it this evening.(have) my lunch already.You(find) your lost book? Yes, I (find) it hours ago.You needn ’t tell him about it. I already (tell)him about it.--Have you ever --Yes, I . --when --Jim, you (be) to Tibet?youthere?(go) --Three weeks ago.(write) a letter to your aunt?(write) it just now.--yes,I Have you (return) the ladder yet? No, not .I (有) the book Harry Potter.(not get) a letter from him.(write) three books.(return) it soon.I So far, IUntil now, she already In the past few years, we In two or three years, the city This is the first time I We already (build) a lot of buildings.(become) the most beautiful one in China.(visit) the Great Wall.(know)each other before.We (get)to know each other three years ago.(get) in touch with each other.(get) in touch with each other just now.(forget) your name.They just They I am sorry. I I am sorry 。
