九年级仁爱英语现在完成时讲与练完整版

现在完成时讲解和练习1. 现在完成时的构成: have\has+过去分词(过去分词的构成有规则变化和不规则变化)2. 现在完成时的四个基本句型肯定句He has finished the work.一般疑问句Has he finished the work 回答Yes ,he has. No, he hasn’t.否定句He has not finished the work.特殊疑问句What has he done3.现在完成时的用法:A．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，强调对现在造成的影想或结果）。

例如：Thecarhasarrived.车子来了。

（结果：车子已在门口）Someonehasbrokenthewindow.有人把窗户打破了。

（结果：窗户仍破着）B.表示过去已经开始，持续到现在的动作或状态，可以和表示从过去某一时刻延续到现在（包括“现在”在内）的一段时间的状语连用,如for+时间段、since+过去的时间点、疑问词howlong等。

例如：Myunclehasworkedatthisfactoryforfiveyears.我叔叔在这个工厂工作已经五年了。

Mr.BlackhaslivedinChinasince2002.自从2002年Mr.Black一直住在中国。

Howlonghaveyoubeenhere你来这里多久了4. 在下列情形下用现在完成时(1)九词语①already已经肯定句中或句尾.: I have already found my pen.= I have found my pen already.②yet已经否定句和疑问句句尾.：I have not finished the work yet.Have you bought a computer yet ③ever曾经句中.：Have you ever seen pandas④never从不句中.：I have never been to Beijing.⑤just刚刚句中.：I have just done my work.⑥before以前句尾.：I have never been there before.⑦so far到目前为止.：So far he has learnt 200 words.⑧how long多久.：How long have you lived here⑨how many times多少次.：How many times has he been to Beijing(3)三词组<has>gone to去了某地表示“已经去了某地，在去那里的途中或到达那里还没有回来”.：He has gone to Beijing (去了北京)<has>been to去过某地表示“曾去过某地，已经从那里回来了”.：He has been to Beijing. (去过北京)<has>beenin表示“在某地呆多长时间”，常与表示一段时间的状语连用，如：since,for,howlong .: Mr.BrownhasbeeninBeijingforthreedays.布朗先生来北京已经有三天了4.如果句子里面没有时间状语，汉语意思能够加“已经”，往往用现在完成时态。

（word完整版）初中英语语法-现在完成时讲解以及练习题讲义现在完成时1.构成现在完成时是由助动词have(has)+动词的过去分词构成。

助动词have(has)表明事情发生于现在。

它和主语的人称、数要保持一致。

过去分词在句子中做谓语，说明句子的含义。

2.用法（1）动作发生在过去某个不确定的时间，但对现在有某种影响和结果。

常被just、already、yet 等副词修饰。

如：-Have you had lunch yet? -Yes,I have. I've just had it.你（已经）吃午饭了吗？我刚刚吃过。

（现在我不饿了）（2）表示从过去某一时刻开始一直持续到现在的动作或状态。

这个动作可能刚停止，可能仍然在进行。

常带有for和since等表示一段时间的状语。

如：He has taught here since 1981他自1981年就在这儿教书。

（可能还要继续教）I have't seen her for four years.我有四年没见到她了。

（3）表示说话前发生过一次或多次的动作，现在成为一种经验，一般译为汉语“过”，常带有twice,ever,never,three times等时间状语。

如：I have been to Beijing twice.我去过北京二次。

3.现在完成时的时间状语（1）现在完成时属于现在时范围，故不能和过去的时间状语连用。

如：yesterday,last Sunday,in1990,three years ago等。

但是，在强调动作产生的后果和影响时，可以和一些表示不确定的时间状语连用。

a. 用副词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：We have already finished our homework.我们已完成作业了。

They haven't finished their homework yet.他们还没有完成作业。

（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。

现在完成时Present perfect tense（含练习及答案）现在完成时（Present Perfect Tense）是英语中一种时态，用于描述过去发生的动作或事情与现在的关联。

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｡规则动词的过去分词的构成与过去式相同，不规则动词的过去分词需单独记忆。

现在完成时的形式：肯定式否定式疑问式简略答语I/ You have worked. I/ You have not worked. Have I/ you worked? Yes, you / I have.He / She / It has worked. He / She / It has notworked.Has he / she / itworked?Yes, he / she / ithas.We / You / They have worked. We / You / They have notworked.Have we / you / theyworked?Yes, you / we /they have.现在完成时的特点：现在完成时的主要特点是强调过去经验或行为对现在造成的影响。

例如：1. I have visited Paris.（我去过巴黎。

）这句话表示过去有一次去巴黎的经历，但并没有提及具体的时间点。

强调的是现在的状态，即我有去过巴黎的经验。

2. She has studied English for five years.（她学习英语已经五年了。

）这句话指的是过去从某一时间点开始学习英语，持续到现在。

强调的是她在过去五年里一直学习英语的经历。

3. They have finished their homework.（他们完成了作业。

）这句话表示过去发生的动作，即他们已经完成了作业，且与现在有关联，即作业的完成状态。

4. We haven't seen each other for a long time.（我们已经很久没见面了。

The Present Perfect Tense一现在完成时的构成:主语+ have/has + 过去分词+…( Enghish in this school since 1999(A)taught (B)have taught (C)tea (D)would teach( the pen for five years(A)has had (B)bought (C)have had (D)have bought( )3.Kate her grand mother's photo before(A)haven't seen (B)have seen (C)see (D)hasn't seen( )4. Mary you these days.(A)Has,seen (B)Do,see (C)Did,see (D)Is,seeing( )5.So far ,we thousands of Building in Quanzhou(A)build (B)have build (C)build (D)will build二、否定式:主语+ haven’t/hasn’t + 过去分词。

疑问式: Have /Has + 主语+ 过去分词?( )1.—Have you finished your work? —.(A)Yes, I have. (B) Yes, I do. (C) Yes, I am. (D) Yes, I did.( )2.—Has she ever learned English? —(A) Yes, she h as. (B) Yes, she does. (C) No, she doesn’t (D)No, she has( )3.He finished his homework. yet(A)doesn’t(B)haven’t(C) hasn’t (D) doesn’t have三现在完成时的含义之一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，常与never/ever，just，already/yet，before。

现在完成时专项练习及答案一、用“for”或“since”填空。

1999 one year Saturday10 o’clock last weeks two weeks10 hours ago he was born two months agoover five days we came here last year二、单项选择( )1.I Beijing twice. It’s so beautiful.A.have gone toB. have been toC. has been to B. went( )2.---How long has Maria been a nurse? ---- .A.Since two years agoB. Since two yearsC. For two years ageD. In 2002 ( )3.He hasn’t finished his homework .A.alreadyB. everC. nevverD. yet( )4.The film for half an hour. All of us are late.A. has begunB. has onC. has been onD. began( )5.---How long have you China? ---For three years.e backB. been away fromC. leftD. be away from( )6.I have been to American, so I know only a little about it.A. alreadyB. everC. neverD. yet( )7.---Tom, will you go to see the film “E.T ” this evening?---No, I won’t. I it already.A.sawB. have seenC. has seenD. will see( )8.---Excuse me, is Sally here? ---Sorry, she Beijing on business.A.has been toB. has been inC. has gone toD. have gone to( )9.They some books they were interested in science.A.have bought, sinceB. have bought, forB. C. have had, since D. have had, for( )10.---Have you ever been to Qingdao? --- . I’ve never been there before.A.Yes, I haveB. No, I haven’tC. Yes, I didD. No, I didn’t( )11.The weather is very cold these days. I a cold for a few days.A. have caughtB. have hadC. catchD. caught( )12.How long have you in the party?A.joinedB. taken partC. been( )13.---Where’s your father? ---- He to the post office.A.has beenB. has goneC. wentD. will go( )14.---May I speak to Mr. Green?---Sorry. He london. But he’ll be back in two days.A. has been toB. has gone toC. has been inD. went to一、用所给动词的适当形式填空。