初中英语现在完成时精讲精练
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初中_现在完成时讲解练习及答案现在完成进行时一、现在完成进行时的构成构成:(1) 肯定句:主语 + have / has been + doing(2) 否定句:主语+have/has+not+been+doing(3) 一般疑问句:Have/Has+主语+been+doing?现在完成进行时表达“某一动作从过去开始一直持续到现在,有可能还要持续下去”,现在完成进行时的句子中多用延续性动词。
如:live,learn,study,work等。
I have been learning English for ten years. 我学英语已经十年了。
She has been skating for four hours. 到现在为止她滑冰已经有四个小时了。
I have been collecting stamps since I was ten years old. 我从十岁起就一直在集邮。
在这几个句子中,have和has是助动词,疑问形式需把助动词提前,否定形式在have或has 后面加not,have not和has not可以分别缩写成haven’t和hasn’t,如:Have you been doing your homework since this morning?从今天早晨开始你就一直在写作业吗?Has he been writing the letters to his friend? 他是一直在给他的朋友写信吗?I haven’t been seeing films for a long time. 我有很长时间没有看电影了。
(表明没有看电影这个动作从过去一直持续到现在,还要继续持续下去。
)二、现在完成进行时的功能(一)表示从过去某时开始一直持续到现在的动作,并且还将持续下去。
I have been learning English since ten years ago.自从十年前以来我一直在学英语。
一.现在完成时的含义及用法1.现在完成时表示过去发生的动作,并对现在有影响。
2.现在完成时表示从过去一直持续到现在的动作或状态。
现在完成时的根本句型:肯定式:主语+ 助动词have/has + 动词的过去分词.否认式:主语+ 助动词have/has + not + 动词的过去分词.疑问式:助动词Have/Has + 主语+ 动词的过去分词?用法①现在完成时表示过去发生的动作,并对现在有影响。
Someone has broken the window. (窗户现在是坏的)I have already lost the key. (我现在没有钥匙)I haven’t read that book yet . (不了解书的内容)I have just cleaned my hands. (手是干净的)此时,现在完成时常与already(已经), yet(已经), just(刚刚),ever(曾经)等词连用,通常放在助动词之后,过去分词之前。
already: 常用于肯定句中.yet: 用于否认句,翻译为还没。
疑问句尾.翻译为已经1.你已经找到你的书了吗?2.他们在这个城市建了许多房子.3.Judy还没到达.4.你吃过早饭了吗?用法②现在完成时表示从过去一直持续到现在的动作或状态。
She has learned English for 5 years.He has lived in Beijing since ( 自从)he was born .Have you stayed here since ( 自从) 3 o’clock?for+ 时间段since+时间点, since+ 句子①Mr. Brown has had his TV _____15 years.②I’ve taken driving lessons _______last month.③My sister has had her cell phone _____a month .④My friends haven’t visited me _______ my birthday.⑤We haven’t used our car _____a long time .⑥She hasn’t h ad a good cup of coffee ____ years.⑦Tom has worn glasses _______he was 7 years old.二.have been 与have gone 的用法比拟have been to “到过,去过〞,表示曾经到过某处,但现在人不在那儿。
【精讲精练】现在完成时内涵(简单内涵)1.表示截止现在业已完成的动作g By now, I have collecte d all the data that I need.2.表示发生在过去而对现在产生影响、带来结果的动作eg She has been to the United States.3.表示过去发生的动作持续到现在,并可能还要延续eg I have learned English for 8 years时态详解1)表示截止现在业已完成的动作By now, I have collected all the data that I need .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。
We haven't met for many years .我们已多年没见了。
They have developed a new product .他们研制成功了一种新产品。
2)表示发生在过去而对现在产生影响、带来结果的动作Have you had your dinner? 你吃晚饭了吗?She has been to the United States. 她已去美国了。
You have grown much taller.你长高了许多。
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 years since he joined the army .他参军五年了。
They have learned English for eight years .他们已学了八年的英语了。
So far we've only discussed the first five chapters.至今我们还只讨论了前五章。
几点注意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。
专题04现在完成时精讲精练模块一:结构公式模块二:现在完成时有两个主要用法模块三:have been VS have gone模块四:特别句型模块五:现在完成时和过去时区别模块一:结构公式:sb.have/has done时间状语:already,yet,just,so far,never,ever,since+过去时间点,for+一段时间,in thepast/last few years现在完成时的简单定义:1)过去发生的动作对现在产生一定的影响;2)过去发生的动作一直延续到现在。
比较:(学生版不出现)I had10hamburgers today.(今天“吃”的行为已结束,10为最终结果。
)I have had10hamburgers today.(今天到目前为止吃了10个,可能很饱,也可能还不尽兴。
)模块二:现在完成时有两个主要用法*Hanged,hanged绞死Hung,hung悬挂Lie躺lay,lain,lying;说谎lied,liedLay放置,下蛋laid,laid(雷的,雷的)♥Attention♥你还能列出现在完成时的一些时间状语吗?recently,lately,总次数……(XX times)1.since用法结构公式:现在完成时+since+一般过去式/过去的时间状语1)I’ve known my best friend since we were in high school.2.瞬间动词不能直接和for,since的完成时连用瞬间动词变成延续动词1)borrow---_____keep______________2)buy-----_______have______________3)catch a cold----_have a cold_________4)die---_________be dead___________5)fall asleep---___be asleep___________6)fall ill-----______be ill______________7)join------_______be in______________8)leave---_______be away____________9)marry----______be married_________10)start----_______be on______________11)end----_______be over___________模块三:have been VS have gone总结:模块四:特别句型a.It/This+is+序数词+n+现在完成时It is the first time that I’ve seen such a wonderful performance.这是我第一次看到如此精彩的表演。
(完整版)现在完成时讲解及练习Unit 9: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. /sin ce 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。
一、时态讲解:现在完成时(1)构成:现在完成时由助动词have + 过去分词构成,助动词have 有人称和数的变化。
第三人称单数用has,其余用have.现在完成时的否定式直接在助动词后面加上not、疑问式是把助动词提到主语之前。
以study 为例,其否定式、疑问式和简单回答形式如下:(2)用法:1)现在完成时通常表示在说话之前已经完成的动作或存在的状态。
说话人强调的是该动作或状态对现在的结果或影响。
My daughter has just gone out. 我女儿刚出去。
I’m sure we’ve met before. 我肯定我们以前见过面。
She has arrived. 她到了。
2)表示持续到现在的动作或状态,往往和包括现在在内的表示一段时间的状语连用,如recently, already, just, lately, fo r…, since…,yet等。
如:I haven’t heard from her these days. 这些日子我没有收到她的信。
We haven’t seen you recently. 最近我们没有见到你。
They have been away for two years. 他们离开已经两年了。
She has been with us since Monday.★注意:a)since和for的区别since后接时间点,如1993,last term, yesterday, the time I got therefor后接一段时间,表示“长达多久”,如ten years, a while, two days等。
Exercise: 用since和for填空1. Jim has been in Ireland ______ Monday.2. Jill has been in Ireland ______ three days.3. His aunt has lived in Australia ______15 days.4. Mary is in her office. She has been there ______ 7 o'clock.5. India has been an independent country ______1974.6. The bus is late. They've been waiting ______ 20 minutes.7. Nobody lives in those houses. They have been empty ______ many years.8. Mike has been ill ______a long time. He has been in hospital ______ October.用since和for填空1.______two years2.____two years ago3._____last month4.______ 19995._______yesterday6._______ 4 o’clock7 _____ 4 hours 8._____an hour ago9. He has lived in Nanjing ___ the year before last.10. I’ve known him ______ we were children.11. Our teacher has studied Japanese ______ three years.12. She has been away from the city ______ about ten years.13. It’s about ten years __________ she left the city.2)have (has) been 和have (has) gone的区别:表示“曾到过某地”要用“have (has) been”; 表示“已经去某地”要用“have (has) gone”。
现在完成时精讲和练习(附答案)一、现在完成时的六种常用情景:(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,1、The car has arrived。
车子来了。
(对现在结果的影响是:车子已在门口)2、Someone has broken the window.有人把窗户打破了。
(对现在结果的影响是:窗户仍破着)3、It’s so dark。
Someone has turned off the light.这里很黑,有人刚把灯关了。
(对现在结果的影响是:现在很黑)4、Are you free? I have finished my homework. I am free.你有空吗?我已经做完了家庭作业。
我有空。
(我已经完成了家庭作业,对现在影响是:很有空)。
(二)表示过去已经开始,一直延续到现在的动作或状态。
一般会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how long等。
这时表示持续动作或状态的动词必须是延续性动词。
1、My uncle has worked at this factory for five years。
我叔叔在这个工厂工作已经五年了。
2、Mr. Black has lived in China since 2002。
自从2002年Mr. Black 一直住在中国。
3、How long have you been here?你来这里多久了?4、I have learnt English for more than ten years。
我已经学了10多年的英语。
(从10年前开始,持续到现在)5、She has swum since half an hour ago。
我已经游泳了半个小时。
(半个小时前开始,到现在还在游) (三)经验性用法:表示从过去开始到目前为止这段时间中反复发生的动作或多次出现的状态。
现在完成时用法精讲精练现在完成时的构成:助动词have(has)+ 过去分词,1表示过去发生或完成的某一动作对现在造成的影响或结果。
例如:I have just cleaned my clothes. 我刚洗过衣服。
(“洗衣服”是发生在过去的动作,对现在造成的结果是“衣服干净了”)现在完成时常用的时间状语有:already (”已经” 用于肯定句的中间和末尾处)never (“从不” 用于中间处)ever (”曾经” 用于疑问句和肯定句的中间处)just (“刚刚” 用于中间处)yet (“已经” 用于疑问句的末尾处/ “还” 用于否定句的末尾处)或不加任何的时间状语,但不能和表示过去的时间状语连用.I.用never, ever, already, yet, for, since填空1. I have _______ seen him before, so I have no idea about him.2. Jack has _________ finished his homework ________ an hour ago.3. Mr. Wang has taught in this school ________ ten years.4. “Have you ________ seen the film?” “No, I have ________ seen it.”5. “Has the bus left _______?” “Yes, it has _________ left.”2现在完成时表示过去的动作一直延续到现在甚至会继续下去Since 和for 的用法表示过去已经开始持续到现在的动作或状态常用的时间状语有:for, since, how long, so far, these days等。
Since+过去点的时间,for+一段时间(数词+量词),此划线部分用how long提问。