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  • 现在完成时课件

    发表时间:2024-08-25

    现在完成时课件范本。

    前辈告诉我们,做事之前提前下功夫是成功的一部分。在上课时幼儿园的老师都想让自己的课堂知识能够吸引小朋友们的注意力,为了将学生的效率提上来,老师会准备一份教案,有了教案才能有计划、有步骤、有质量的完成教学任务。优秀有创意的幼儿园教案要怎样写呢?推荐你看看以下的现在完成时课件范本,还请你收藏本页以便后续阅读。

    现在完成时课件 篇1

    1 、现在完成时用来表示过去发生或已经完成的动作对现在造成影响或后果。也就是说,动作或状态发生在过去但它的影响现在还存在,强调的是现在。

    例如:I have already posted the photo.我已经把照片寄走了。强调post对现在的影响“照片不在这里”。

    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.谓语动词必须是延续性动词。例如:

    He has lived here since 1978.自从1978年以来,他一直住在这儿。(动作起始于1978年,一直住到现在,可能还要继续住下去。)

    注:瞬间动词(buy,die,join,lose……)不能直接与for 或since 引导的时间段连用。要改变成延续性动词。 变化如下:

    come/arrive/reach/get to-----be in go out----be out finish----be over open----be open die----be dead Buy---have Fall ill---be ill Come back---be back Put on ---be on/wear Worry---be worried Catch a cold---have a cold

    现在完成时往往同表示不确定的过去时间状语连用,如already(肯定), yet(否定,疑问), just, before, recently,still, lately,never等.

    例如:He has already finished the work..

    对于现在完成时的考查,多以单选、句型转换或词语运用的形式考查学生在具体语境中灵活运用时态的 能力。在考试中,会让大家判断是否该用现在完成时,或者是考查“瞬间动词”不能与表示一段时间的状语连用”这一知识点。

    典型例题1:His father_____the party since 1978

    A.joind B.has joined C.was in D.has been in

    解析:本题考查学生对现在完成时的熟练掌握。 since 1978表达“自从1978年一直到现在”,表示这件事情从过去一直持续到现在,应该用现在完成时,而且动词必须是延续性动词,AB均为瞬间动词,不能与时间段连用,故排除;C为一般过去时,也不行。

    一般过去时和现在完成时的用法区别是我们要注意的地方。要牢记:

    一般过去时通常与表示过去的时间状语连用。

    如: yesterday, last week , two years ago ,just now ,in 等;而现在完成时则常与 just ,already ,ever ,never 等副词和 these days ,this week ,since ......, for ...... 等表示一段时间的状语连用。现在完成时强调过去发生的动作对现在的影响和结果,而一般过去时与现在没有联系,只是说明某个动作发生的时间是在过去。

    典型例题2: —______ you ___ your homework yet ?

    —Yes . I _____ it a moment ago .

    A.Did ; do ; finished B.Have ; done ; finished C.Have ; done ; have finished

    解析:本题考查一般过去时和现在完成时的用法区别。问句中的yet表明应该用现在完成时,而回答中的a moment ago 是一个表示过去的时间状语,应该用一般过去时。

    1.你曾经吃过鱼和薯条吗?

    2. 我刚刚丢了我的化学书。

    3. 我以前从来没去过那个农场。

    5. 你已经看过这部电影了吗?

    6. 我哥哥还没回来。

    7.这本字典我已买了三年了。

    8.他离开中国三年了。

    9.我认识他们五年了。

    10.他们已去了美国五年了。

    11.自从他搬到济宁,他就住这儿了。

    12.我妹妹成为一个大学生已经三年。

    13.自从以来他们就认识。

    14.我来到这个学校已3年多了。

    参考答案:

    1. Have you ever had / eaten fish and chips?

    2. I have just lost my chemistry book.

    3. I have never been to the farm before.

    4. He has already had lunch  =  He has had lunch already.

    5. Have you seen the movie yet?

    6. My brother hasn’t  come /get / been back yet  =  My brother hasn’t  returned yet.

    7. I have had this dictionary for three years / since three years ago.

    8. Has been away from China for three years.

    9. I have known them for five years.

    10. They have been in the USA for five years.

    11. He has been here since he moved to Jining.

    12. My sister has been a college student for three years = My sister has   been in college for three years.

    13. They have known each other since .

    14. I have been in this school for over three years.

    现在完成时课件 篇2

    现在完成时表示过去发生的动作对现在造成的影响或结果或表示过去的动作或状态持续到现在。为了方便老师们教学,分享了现在完成时的课件,一起来看看吧!

    (一)教材分析:

    本课为初三年级语法复习课,在已经复习完动词一般现在时,一般过去时,一般将来时,现在进行时和过去进行时的基础上,进行动词时态中最重要的现在完成时的复习。课时分配为两节讲练结合课和两节专项练习课。本课为讲练结合课的第一课时。

    (二)学情分析:

    学生在初二年级学习过现在完成时后,一直没有进行过系统的复习。在前阶段的语法复习中能够看出来学生的对于该语法项目遗忘程度比较严重。而现在完成时在中考中的地位较高,是单选的每年必考的项目,所以针对学生的现状和考试的要求,都要在该时态复习时下一番功夫。

    复习现在完成时的构成和两种基本用法。

    现在完成时与一般过去时的区别。

    have been to, have gone to和have been in的用法。

    (三)教学难点:

    1.现在完成时与一般过去时的区别。

    2.have been to, have gone to和have been in的用法。

    三.课堂流程:

    1.复习现在完成时的构成和两种基本用法。

    2.现在完成时与一般过去时的区别。

    3.have been to, have gone to和have been in的用法。

    教学重点 复习现在完成时的构成和两种基本用法。

    1.现在完成时与一般过去时的区别。

    2.have been to, have gone to和have been in的用法。

    Translate the following sentences

    1. I have lived in Beijing.

    2. He has already seen the film.

    3. I have not had his lunch yet.

    4. She has not visited your school before.

    5. Have you ever been to the Forbidden City before ?

    6. I have never been to that farm before.

    7. I have just lost my English book.

    主语+have / has  +  过去分词+~

    1)现在完成时态表示 过去发生的动作对现在造成的影响或结果 。

    标志词:already   ,yet , just,  before,  never ever

    1. A: ______ your brother _________ a new watch?  (buy)

    1.提出问题,让学生进行小组讨论:

    ⑴ When is the Present Perfect Tense used?

    ⑵ What’s the difference between “have/has gone to” and “have/has been to”?

    ⑶ What kinds of words or phrases can be often used in the Present Perfect Tense ?

    2.检查讨论情况并做典型题例。

    此步骤目的在于引导学生进行小组合作,培养合作精神。

    Step 4 Revise the difference between the two types of the tense(区别一般过去时与现在完成时)

    1.先让学生做一些相关练习,让学生自己发现两种时态的区别并及时总结。

    2.让学生举例说明。

    此步骤的目的在于鼓励学生主动探究,调动他们学习的积极性和主动性。

    2.让学生自己归纳总结瞬间动词转化为延续动词的用法。

    初中阶段常见的终止性动词转化成延续性动词有:

    come to → be in(at) come back → be back

    begin/start → be on join→ be in/be a member of

    leave → be away get to know → know

    finish → be over fall asleep → be asleep

    catch a cold → have a cold fall ill → be ill

    come to work here → work here leave here → be away from here

    规律: 除了borrow → keep buy → have 其余都可以转化为be +介词或副词或形容词。

    口诀:

    终止性动词一瞬间,不与时段紧相连。

    来买发现停止参加开始变得死离开……

    用时千万别胡来,记住要用别的动词来替代。

    注:where 和when 引导的.从句一般不用现在完成时,但Where have you been ?除外。

    此步骤目的在于鼓励学生积极参与,扩大学生的参与面。

    利用学生的竞争心理,让学生以小组为单位进行组间竞赛,得分多者为胜,以此调动学生学习的积极性和兴趣,同时达到巩固现在完成时的目的。

    练习I. 用already, yet, ever, never, just填空

    设置两个情景,让学生自选两人一组编一个对话,并且用上现在完成时态,将语法知识拓展运用到实际生活当中,引导学生主动探究实践,促进学生多方面能力的综合发展。

    熟练掌握现在完成时的用法。

    板书设计:

    肯定句式:现在完成时的肯定句式是“have(has)+过去分词”。

    否定句式:现在完成时的否定句式是“haven't(hasn't)+过去分词”。

    疑问句式: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。

    肯定回答用“Yes...have(has).”。

    否定回答用“No...haven't(hasn't).”。

    现在完成时课件 篇3

    for, since, so far, ever, never, just, yet, till / until, up to now, in past years, always,

    3)现在完成时可表示持续到现在的动作或状态,动词一般是延续性,如live, teach, learn, work, study, know.

    过去时常用的非持续性动词有come, go, leave, start, die, finish, become, get married等。

    举例:

    I saw this film yesterday.

    I have seen this film.

    Why did you get up so early?

    Who hasn't handed in his paper?

    She has returned from Paris.

    她已从巴黎回来了。

    She returned yesterday.

    她是昨天回来了。

    He has been in the League for three years.

    He has been a League member for three years.

    He joined the League three years ago.

    I have finished my homework now.

    ---Will somebody go and get Dr. White?

    ---He's already been sent for.

    句子中如有过去时的时间副词(如 yesterday, last, week, in 1960)时,不能使用现在完成时,要用过去时。

    (错)Tom has written a letter to his parents last night.

    (对)Tom wrote a letter to his parents last night.

    1)It is the first / second time…. that…结构中的从句部分,用现在完成时。

    It is the first time that I have visited the city.

    It was the third time that the boy had been late.

    2)This is the… that…结构,that从句要用现在完成时.

    This is the best film that I've (ever) seen.

    这是我看过的最好的电影。

    This is the first time (that) I've heard him sing.这是我第一次听他唱歌。

    ---No, this is the first time I ___ here.

    was B. have been C. came D. am coming

    答案B. This is the first time 后面所加从句应为现在完成时,故选B。

    ---No, it's the first time I ___ here.

    even, come B. even, have come C. ever, come D. ever, have come

    答案D. ever意为曾经或无论何时,反意词为never,此两词常用于完成时。 This is the largest fish I have ever seen. It is / was the first time +that-clause 的句型中,从句要用完成时。

    注意:非延续性动词的否定形式可以与表示延续时间的状语连用。即动作不发生的状态是可以持续的。

    (错)I have received his letter for a month.

    (对)I haven't received his letter for almost a month.

    Since 用来说明动作起始时间,for用来说明动作延续时间长度。

    I have lived here for more than twenty years.

    I have lived here since I was born..

    My aunt has worked in a clinic since 1949.

    Some new oilfields have been opened up since 1976.

    I have known Xiao Li since she was a little girl.

    My brother has been in the Youth League for two years.

    I have not heard from my uncle for a long time.

    注意:并非有for 作为时间状语的句子都用现在完成时。

    I worked here for more than twenty years.

    I have worked here for many years.

    小窍门:当现在完成时+一段时间,这一结构中,我们用下面的公式转化,很容易就能排除非延续动词在完成时中的误使。

    (对) Tom has studied Russian for three years.

    = Tom began to study Russian three years ago, and is still studying it now.

    (错) Harry has got married for six years.

    = Harry began to get married six years ago, and is still getting married now.

    显然,第二句不对,它应改为 Harry got married six years ago.或 Harry has been married for six years.

    现在完成时课件 篇4

    (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

    (2)用法:

    1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, for…, 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:

    since后接时间点,如1993,last term, yesterday, the time I got there

    for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.

    2)表示短暂意义的动词如arrive, leave, borrow, buy, begin, start, die等,在完成时当中不能和表示一段时间的状语连用,因为它们表示的动作不可能持续。因此,不能说: He has come here for 2 weeks. × The old man has died for 4 months. × They have left only for 5 minutes. × 以上三句话可以改为:

    He has been here for 2 weeks.

    The old man has ______ _______ for 4 months. They have _____ _____ only for 5 minutes 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”。试比较:

    Where has he been? 他刚才到哪里去了?(已经回来了) Where has he gone? 他上哪儿去了?(人不在) They have been to Canada. 他们到过加拿大。(现在已经不在加拿大) They have gone to Canada. 他们到加拿大去了。(可能在路上和已经到加拿大).

    3)现在完成时不能和表示过去的时间状语连用,如yesterday, last year, in 1976, two days ago, just now, when I came in,但可以和already, yet, sometimes, always, often, before, lately, recently, once, twice, ever, never等连用。例如:

    She has already come. 她已经来了。 I haven’t read it yet. 我还没读过这个。 I have met him before. 我从前曾见过他。

    Ma Hong has always been a good student. 马红一直是个好学生。 I have often seen him in the street. 我经常在街上看见他。 They have never been to Yan’an. 他们从未去过延安。 I haven't seen him lately. 我近来没看到他。

    Exercise:

    I. Fill in the blanks with the proper form.

    1. I____ already ____ (see) the film. I ________ (see) it last week. 2. _____ he ____ (finish) his work today? Not yet.

    3. My father ____ just ____ (come) back from work. He is tired now. 4. Where’s Li Ming ? He __________ (go) to the teacher’s office. 5. I __________ (work) here since I ______ (move) here in .

    6. So far I _______________(make) quite a few friends here.

    7. How long ________ the Wangs ______________(stay) here ? For two weeks. 8. I ________ just ___________ (finish) my homework. 9. He ________ (go) to school on foot every day. 10.____ you ______ (find) your science book yet? 11. If it ____ (be) fine tomorrow, I'll go with you.

    12. The students ____________ (read) English when the teacher came in. 13. Look! The monkey __________ (climb) the tree. 14. My mother __________ (come) to see me next Sunday.

    15. I've lost my pen. _________ you ________ (see) it anywhere? II. Choose the best answer.

    1. How long have you _______ here?

    A. come B. got C. arrived D. been 2. My grandpa died _________.

    A. at the age of my 2 B. for 2 years C. when I was 2. D. my age was 6. 3. Jane has _____ to BeiJing. She will come back tomorrow.

    A. been B. gone C. went D. never been 4. It is ten years _____ I last saw her.

    A. after B. since C. for D. that 5.--Who will go to the station to meet Lorry? --I will. I _____ her several times. A. met B. have met C. had met D. will meet 6. --What a nice dress! How long _____ you _____ it? --Just 2 weeks.

    A. will, buy B. did, buy C. are, having D. have, had 7.--Do you know Lydia very well?

    --Yes, She and I _____ friends since we were very young.

    A. have made B. have become C. have been D. have turned 8. The Smiths _______ in China for 8 years.

    A. has lived B. lived C. have been D. live 9. --Hello, this is Mr. Green speaking. Can I speak to Mr. Black? -- Sorry. He ______ the Bainiao Park.

    A. has been to B. has gone to C. went to D. will go to 10. --____ you ever ____ to the US? -- Yes, twice.

    A. Have, gone B. Have, been C, Do, go D. were, going III. Rewrite the sentences.

    1. I have been to Macau before. (改为否定句)

    I _________ _________ been to Macau before.

    2. 就划线部分提问) ______ _______ he come to school?

    3. I bough a new bike just now. (用just改写) I ____ just ____ a new bike.

    4. We began to learn English three years ago.(改为同义句) We ____ ____English ____three years

    5. He has never surfed, _______ _______? (改成反意疑问句)

    (对划线部分提问) _______ _______have they been here?

    7. The old man _________ last year. He has _______ _______for a year. (die) 8. Miss Gao left an hour ago. (同义句转换)

    Miss Gao has _______ ________ ________ an hour ago. Ask the questions初中现在完成时专练。

    1) I have been there for two days.

    __________ _________ __________ you __________ __________? 2) My father has lived here since .

    _________ _________ __________ your father _________ __________? _________ ________ he _________ __________? __________ ___________ they __________ a book?

    Use “never, ever, already, just, yet, for, since” to fill in the blanks. 1. I have _______ seen him before, so I have no idea about him. 2. Jack has _________ finished his homework.

    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.” 现在完成时练习题及答案 一、翻译下列句子:

    你曾经吃过鱼和薯条吗? 2. 我刚刚丢了我的化学书。

    5. 你已经看过这部电影了吗? 6. 我哥哥还没回来。

    7.这本字典我已买了三年了。 8.他离开中国三年了。

    现在完成时课件 篇5

    【焦点一】 现在完成时怎样构成?

    现在完成时由“助动词have / has +动词的过去分词”构成。助动词have /has 无词义,只起到构成语法结构的作用。

    【焦点二】 现在完成时怎么样使用?

    现在完成时表示过去已经开始,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)的时间状语连用(即for+一段时间)。 必须注意的是谓语动词的使用:

    延续性动词指那些动作、意义不会一下结束或完成,而可以延续、发展的动词。如:live, study, work, wash, sing 等等。这类动词能够与“for +一段时间”连用。如:

    He has worked in this factory for a year.

    他已经在这个工厂工作一年了。

    They have lived here for ten years.

    他们已经在这里住了十年了。

    所谓终止性动词也称作瞬间性动词,指的是那些表示瞬间的动作而不能延续的动词,这类动词在肯定句子中不能与“for +一段时间”连用,若要连用,须采用下列两种方式:

    (1) 改为延续性动词:如“He left school last month.”相当于“He has been away for one month.”

    终止性动词在否定句中,可以与 “for +一段时间”连用。如:

    I didn't see him for one day. 我一天没见到他了。

    现在完成时课件 篇6

    现在完成时是课程标准要求学生重点掌握的语法项目,也是初中英语语法的重点和难点之一。语法现象较为复杂,难度较大,是中考重点考查的内容之一。

    2. have gone to / have been to/ have been in 的区别。

    3. 延续性动词和费延续性动词在现在完成时中的应用。

    4.现在完成时与一般过去时的区别。根据以上考点的分析和发展学生的综合运用语言的能力为宗旨制定一下教学目标

    (二)教学目标:

    1.知识与能力:通过复习使学生巩固现在完成时和一般过去时的有关知识,能够运用所学知识解决时态的题目。

    2.过程与方法:通过复习提高学生综合运用所学知识解决问题的能力。

    3.情感态度:通过复习使学生树立较强的自信心,形成克服困难的意志。

    “完成”和“过去”概念定义的差异,学生往往对两种时态的含义和用法产生混淆,同时两种时态既有联系又有区别,因此,正确理解现在完成时和一般过去时的用法及区别,正确使用现在完成时和一般过去时解决有关时态的题目既是本节课的重点,又是本节课的`难点。

    说教法:结合教材和复习课的特点,采用讲授和练习相结合的教学方法。精讲巧练,循序渐进地深化教学内容。展开以教师为主导,以学生为主体的师生双边活动。

    说学法:结合教学内容,在课堂上指导学生使用了比较归纳、分析概括的方法,这样不仅有利于学生更好地从整体上理解和把握知识的结构和体系,更有利于发展学生求同辩异的思维能力,培养学生的自学能力。

    第一步:知识复习总结,首先分别复习现在完成时和一般过去时的有关知识,对重点进行分析并结合习题进行巩固,再对两种时态进行比较归纳,使学生从整体上理解和把握这两种时态的结构和体系。

    第二步:知识点练习。结合历届中考试题中部分考查现在完成时和一般过去时的试题让学生在规定时间内完成。达到让学生熟练运用所学知识,培养学生运用所学知识解决问题的能力的目标。

    第三步:知识点练习。结合历届中考试题中部分考查现在完成时和一般过去时的试题让学生在规定时间内完成。达到让学生熟练运用所学知识,培养学生运用所学知识解决问题的能力的目标。

    通过本节复习课,学生掌握了现在完成时的各种用法以及现在完成时和一般过去时的区别,能够运用所掌握的知识解决遇到的题目,效果较好。但由于时间关系练习量太少。

    现在完成时课件 篇7

    教学过程

    1.引入:I have read this book twice. Read 动作发生在过去。

    2.现在完成时的动作发生在过去,对现在造成的影响。

    3.现在完成时结构中have/has的作用:通过do/dose/be等联想法推导出have/has的语法能。

    否定句:主语+have/has+not+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) 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. (含义是: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)或since(+时间点或过去时的句子)连用.

    ⑤It is+时段+since+从句(过去时) Mary has been ill for three days. I have lived here since .

    现在完成时和一般过去式的区别:

    一般过去时和现在完成时所表示的动作都发生在过去,那么这两种时态有什么区别呢? ①一般过去时常与具体的表示过去的时间状语如yesterday, last year, just now等连用;强调动作在过去发生,与现在无关。

    ②现在完成时与自已的特征词already ,yet ,just ,ever ,never,before等连用,强调过去发生的动作对现在的影响或过去开始发生一直持续到现在的动作。

    例: He saw the film last night. (过去时,表示他昨晚看过那部电影了,现在不知还要不要再看一次)

    He has (ever) seen the film before.(现在完成时,表示他已看过那部电影,现在不想再看了)

    ③现在完成时可表示持续到现在的动作或状态,动词一般是延续性的。如:live, work,study等。而一般现在时对动词是否延续无任何要求。

    时间状语的区别:

    除了我们讲过的already, yet, still,just, ever, never, since短语和 for短语外,还有许多时间状语常用于现在完成时,我们要留心将它们和一般过去时的时间状语区分开来:

    1. lately, recently是完成时的`时间状语;just now 有a moment ago 之意,是过去时的时间状语。如:

    Have you heard from your family lately/recently? Did you see Joan just now?

    2. in the past few years 意思是“过去几年来”,常用于完成时中;in the past意思是“在过去”,常用于过去时中。 如:

    Great changes have taken place in my hometown in the past few years.

    Where did you work in the past?

    3. ever since then与from then on / after that 都有“打那以后”之意,但前者常用于完成时,而后两者常用于过去时。如:

    She's lived here ever since then. I didn't hear of Jim from then on/after that.

    4. before 通常用于完成时;...ago通常用于过去时。如:

    I have never been to Japan before. She went to Japan two years ago.

    5. so far“到目前为止”, these days“这些天来”也是现在完成时常见的时间状语。如: So far, no man has travelled farther than the moon.

    What have you done these days?

    持续性用法(肯定句,疑问句中谓语动词必须是延续性动词):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。

    例:

    1)I've lived here since 1990.自从1990年以来我就住在这里。

    = I've lived here since 21 years ago.

    = I've lived here for 21 years.

    = It is 21 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。短暂性动词由于动作不能持续,故不能与for(达到;累计)或since(自从。。。到现在)引出的时间状语连用。 ②对for和since引导的时间状语提问要用How long

    1) 他入团两年了。

    误:He has joined the League for two years.

    正:He has been a League member for two years.

    区别:have been in, have been to 与have gone to 的用法

    1. have(has) been in 意为“已经在某地呆了多长时间”,常与表示一段时间的状语连用。如:

    Mr. Brown has been in Shanghai for three days. 布朗先生来上海已经有三天了。 They have been in Canada for five years. 他们到加拿大有五年了。

    2. have(has) been to意为“曾经去过某地”,表示现在已经不在那里了。可与just, ever, never等连用。 如:

    I've just been to the post office. 我刚才去邮局了。

    Have you ever been to Hangzhou? 你曾经去过杭州吗?

    Mary has never been to the Great Wall. 玛丽从未去过长城。

    3. have(has) been to 后面可接次数,表示去过某地几次。如:

    I've been to Beijing three times. 我去过北京三次。

    They have been to that village several times. 他们去过那个村庄好几次了。

    4. have(has) gone to 意为“到某地去了”,表示到了某地或正在去某地的途中。 总之,说话时该人不在现场,一般不用第一、第二人称代词作句子的主语。如: ---Where is Tom? ---He has gone to the bookshop. 他到书店去了。

    三、例题精析

    【【题干】Both his parents look sad . Maybe they _________what's happened to him .

    A. knew B. have known C. must know D.will know

    【解析】现在完成时主要强调过去发生的动作对现在造成的影响,或过去发生的动作还未结束,一直持续到现在或将来,重点在于对现在的影响。这种考查难度较大,往往无时间状语,需要从上下文分析、推理才行。正确答案是B。

    【题干】Harry Potter is a very nice film .I_______ it twice .

    A. will see B. have seen C. saw D.see

    【解析】现在完成时还与once(一次),twice(两次),three times(三次),several times(几次)等表示重复次数的词语连用。故应选B。

    【题干】—These farmers have been to the United States .

    —Really ? When _____ there ?

    A. will they go B. did they go C. do they go D. have they gone

    【解析】现在完成时与一般过去时容易混淆,就是因为它们所表示的动作都发生在过去,但二者又有区别:一般过去时表示过去某个时间发生的事存在的状态或经常发生的动作,说话的侧重点在于陈述一件过去的事情,与现在没有关系;现在完成时表示与现在有关系的发生在过去的动作,它不与表示过去的时间状语(如yesterday , last week , a moment ago等)连用。故正确答案为B。

    【基础】1. Both his parents look sad . Maybe they _________what's happened to him . A. knew B. have known C. must know D.will know

    2. He has _______ been to Shanghai , has he ?

    A. already B.never C.ever D. Still

    3. Have you met Mr Li ______?

    A. just B. ago C.before D. a moment ago

    答案及解析:

    1、现在完成时主要强调过去发生的动作对现在造成的影响,或过去发生的动作还未结束,一直持续到现在或将来,重点在于对现在的影响。这种考查难度较大,往往无时间状语,需要从上下文分析、推理才行。故上两侧根据上下文分析、推理,正确答案是B。

    2、现在完成时常与already(已经),just(刚刚,正好),ever(曾经),never(从来,也不;从不),before(以前),yet(仍然)等连用。故2应选B。

    1. The famous writer _____ one new book in the past two year

    A. is writing B.was writing C.wrote D.has written

    2. -Our country ______ a lot so far . -Yes . I hope it will be even ______ . A. has changed ; well B. changed ; good

    C. has changed ; better D. changed ; better

    3. Zhao Lan ______already ______in this school for two years .

    A. was ; studying B. will ; study C. has ; studied D. are ; studying

    答案及解析:

    1、现在完成时常与recently(近来),so far(到目前为止),in the past/“last + 一段时间”等时间状语连用。因为上述短语表示的是从现在起往前推算的一段时间,句中的动作是从过去某一时间或时刻开始持续到现在的。故2应选D。

    3、现在完成时时常与“for +时间段或since +过去时间点”连用(含从句,从句过去时)。故3应选C。

    【拔高】1. We ______ Xiao Li since she was a little girl .

    A. know B. had known C. have known D. knew

    2. Harry Potter is a very nice film .I_______ it twice .

    A. will see B. have seen C. saw D.see

    3. -These farmers have been to the United States .

    -Really ? When _____ there ?

    2、现在完成时还与once(一次),twice(两次),three times(三次),several times(几次)等表示重复次数的词语连用。故2应选B。

    3、现在完成时与一般过去时容易混淆,就是因为它们所表示的动作都发生在过去,但二者又有区别:一般过去时表示过去某个时间发生的事、存在的状态或经常发生的动作,说话的侧重点在于陈述一件过去的事情,与现在没有关系;现在完成时表示与现在有关系的发生在过去的动作,它不与表示过去的时间状语(如yesterday , last week ,

    3. 现在完成时和一般过去时对比和总结

    1. -______ you ___ your homework yet ?

    -Yes . I _____ it a moment ago .

    A. Did ; do ; finished B. Have ; done ; finished

    C. Have ; done ; have finished D. will ; do ; finish

    2. His father ______ the Party since 1978 .

    A. joined B. has joined C. was in D. has been in

    3. -Do you know him well ?

    Sure .We _________ friends since ten years ago .

    A. were B. have been C. have become D. have made

    2、现在完成时中,非延续性动词不能与for和since引导的表示一段时间的状语连用,通常是用相应的延续性动词来代替。故11的正确答案依次为:D。

    1. -How long have you ____ here ?

    -About two months .

    A. been B. gone C. come D. arrived

    2. Hurry up! The play __________ for ten minutes .

    A. has begun B. had begun C. has been onD. Began

    3. It _____ ten years since he left the army .

    答案及解析:

    1. Miss Green isn't in the office . she_______ to the library .

    A.has gone B. went C.will go D. has been

    2. My parents ______ Shandong for ten years .

    3. The students have cleaned the classroom, __________?

    A. so they B. don't they C. have they D. haven't they

    答案及解析:

    1、“have/has gone to + 地点”表示“某人去了某地(还未回来)”,指主语所指的人不在这儿。“have/has been in + 地点”表示“在某地呆了多长时间”,常与表示时间的状语连用。“have/has been to +地点”表示“曾经去过某地(但现在已不在那儿)。”故16的正确答案为A。

    现在完成时课件 篇8

    (一) 教材分析:

    本模块以运动为话题综合运用一般过去时和现在完成时。这两个时态学生容易弄混,但能激起学生强烈的求知欲。而且,大部分同学对这个话题感兴趣,尤其是涉及及自己喜欢的运动项目及运动明星,因此他们乐于谈论。根据这个话题可以设计丰富的教学活动,比如观看各种各样的运动比赛。丰富的课余活动,开运动会等,都能就运动这个话题充分展开讨论,而且能运用任务型教学模式,培养学生的合作精神及创新思维。对运动的讨论还涉及到德育。通过不同的活动使学生认识到,运动能产生美。而运动员身上顽强拼搏,永不服输的精神无疑会对学生产生激励作用。

    (二) 学情分析:

    学生对于姚明非常熟悉,在这班有很多的男同学喜欢打篮球,而且还有一部分女同学喜欢看篮球比赛,他们都是姚明的球迷,我就抓住这个有利的契机,结合学生感兴题的话题把学生吸引住。而且,给合的北京奥运会,来学习本模块中所谈到的有关奥运的知识,这使学生很容易接受。

    知识与技能目标:

    1、复习实义动词的现在完成时及完成进行时,一般过去时与现在完成时的区别

    2、宾语从句的使用,连词的使用过程与方法目标:通过小组活动谈论自己喜欢的运动项目及运动明星。

    情感态度和价值观:通过谈论运动及运动员,培养学生养成良好的运动习惯,学习运动健儿永不服输的拼搏精神。

    (二)教学重点:

    1. 实义动词的现在完成时及完成进行时,一般过去时与现在完成时的区别

    (三)教学难点:

    学会用英语描述自己喜欢的运动员能综合运用各种时态,注意连词的使用能与同学就运动这个话题交换信息,开展一些模拟现实生活的活动并表演

    现在完成时用来表示之前已发生或完成的动作或状态,其结果的确和现在有联系。动作或状态发生在过去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。

    动词一般是延续性的,如live, teach, learn, work, study, know.

    举例:

    I saw this film yesterday.

    I have seen this film.

    Why did you get up so early?

    Who hasn't handed in his paper?

    She has returned from Paris.

    她已从巴黎回来了。

    She returned yesterday.

    她是昨天回来了。

    He has been in the League for three years.

    He has been a League member for three years.

    He joined the League three years ago.

    I have finished my homework now.

    ---Will somebody go and get Dr. White?

    ---He's already been sent for.

    关于现在完成时上述例举了许多关于它的介绍,同学们可以在例句中寻找现在完成时的真谛。

    关于英语中动词的种类知识,希望同学们很好的掌握下面的内容学习。

    动词是表示动作或状态的词,按其词义和在句子中的作用可分为行为动词,连系动词,助动词和情态动词。

    行为动词可分为及物动词 (vt)和不及物动词(vi),及物动词表示动作或状态,有完整的词义,能单独作谓语,后跟宾语;不及物动词表示动作或状态,有完整的词义,能单独作谓语,但后面不能直接跟宾语,如要带宾语则与介词或副词构成短语。

    如:

    More and more people study English.(vt)

    The students are listening to the teacher carefully.(vi)

    连系动词本身有一定的`词义,但不能独立作谓语,必须与表语一起构成谓语。常用的连系动词有 be, get, turn, become, look, feel, grow, seem, sound, taste, smell等。

    如:

    Our country is becoming stronger and stronger.

    助动词本身无词义,不能单独作谓语,只能和主要动词一起构成谓语动词,表示否定,疑问及动词的时态、语态、人称和数等语法特征,助动词有 be,do,have,shall,will等。

    如:

    How do you usually come to school?

    The children are playing yo-yo now.

    情态动词本身有一定的意义,但不能独立作谓语,只能和主要动词原形一起构成谓语,表示说话人的语气和情态。情态动词没有人称和数的变化。情态动词有 can (could),may(might),must, need, ought to, dare等。

    如:

    Can I help you?

    - Must we go now? -No, you needn't .

    a. can与be able to的用法有所区别。can只用于一般现在时和过去时,指本身有能力的“能”;be able to用于各种时态均可,指须经过努力而“能”。

    b. must与have/has to的用法。must表示说话人主观认为“必须”,只用于一般现在时和一般将来时;have/has to表示客观需要,意为“不得不”,它可用于各种时态。

    c.need和dare既可作情态动词也可作行为动词。

    对于英语的学习中,关于动词不定式的形式知识点的内容,我们做下面的讲解学习哦。

    1.作主语。 如:

    To learn English is very important.

    但实际上不定式作主语常用 it来作形式主语,而将不定式移至谓语动词后作真正的主语。

    如上句可表达为:

    It's very important to learn English.

    2.作表语。 如:

    My idea is to ring him up at once.

    3.作宾语。 如:

    I have decided to go to Binjiang Primary School.

    4.作宾语补足语。

    a. ask, want, teach, tell, know, would like, allow等动词后面接动词不定式作宾语补足语。

    如: The policemen asked him to get off the bus.

    b. hear, see, look at, feel, watch, notice, listen to等动词后接不带to的动词不定式作宾语补足语。

    如: We often see Miss Li clean the classroom.

    c. let, make, have这些使役动词后接不带to的动词不定式作宾语补足语。但在被动语态中这些不带to的都须带上to。

    如: In those days the bosses often made the workers work day and night.

    d.动词help接动词不定式作宾语补足语,可带to也可不带to。

    如: Can you help me (to) carry the heavy bag?

    5.作定语。

    a.与被修饰词有动宾关系。如:I have something important to tell you.但如果不定式动词为不及物动词,后面的介词千万不要省略。

    如: Maybe they have three rooms to live in.

    b.与被修饰词有主谓关系。

    如: Mr Liang is always the first to come and the last to leave.

    c.与被修饰之间只有修饰关系。

    如: I have no time to play cards.

    d.作状语,表示目的、原因、方法、方向、结果等。

    如: I'll go to meet my friend at the railway station.

    e.不定式复合结构“for sb. to do sth” 作主语时,常用“It is +adj+ for

    of sb. to do sth”的句式。形容词good, bad, polite, unkind, kind, ice, clever,

    right, wrong, careful等用“It is +adj +of sb. to do sth.”

    其他形容词用 for。

    如:

    It's dangerous for you to ride so fast.

    It's very kind of you to help me.

    8.动词不定式与疑问句who, what, which, when, how, where, whether等连用。

    如: I don't know when to start.

    He didn't tell me where to go.

    但上面结构相当于一个从句,故上述句子也可表达为:

    I don't know when we'll start.

    He didn't tell me where he would go.

    注意:

    a.有些动词或动词短语不能带不定式,只能接动词的-ing形式。

    如: enjoy, finish, keep, mind, miss(错过),be busy, go on, keep on, be worth, practise等。

    如: The peasants are busy picking apples.

    Would you mind my opening the door?

    b.有些动词后可接不定式,也可接动词的-ing形式,但意思不同。

    如: Lu Jian forgot to post the letter.(该寄但还没做)

    Lu Jian forgot posting the letter.(已经寄过信了)

    They stopped to sing a song.(停止在做的工作而去做另一件工作)

    同学们认真学习,下面是老师对短语动词的四种类型知识总结。

    动词与介词、副词等构成的固定短语,叫短语动词。主要有四类:

    有的一般不跟宾语,如go ahead, fall behind, get up, lie down, go up, run out, give in, stay up等;有的可以跟宾语,如put out, carry out, give up, wake up, check in, eat up, fill in, find out, fix up, hand in, mix up, look up, make out, turn down, work out等。

    注意:宾语是名词时,放在副词前面或后面都可以,但若作宾语的是人称代词时,就只能放在动词和副词之间了。如:

    We’ve decided to put the meeting off (=put off the meeting) . 我们决定把会议推迟。

    We’ve decided to put it off. 我们决定将它推迟。(不说put off it)

    如ask for, care for, call for, break into, deal with, call on, look for等。后面必须接宾语。如:

    I don’t care for tea. 我不喜欢喝茶。

    如look forward to, put up with, looked up to, go in for, go along with, date back to, look down on, keep up with, add up to, run out of等。如:

    She soon caught up with us. 她很快赶上了我们。

    如take care of, pay attention to, make use of, make contribution to做出贡献等。如:

    Take care of your brother while I am away. 我不在的时候,你要照顾好你弟弟。

    希望上面老师对短语动词的四种类型知识的讲解学习,同学们都能很好的掌握,相信同学们会学习的很好的哦。

    关于英语中及物动词与不及物动词的知识学习,我们做下面的内容讲解。

    根据其后是否带宾语,动词可分为及物动词(带宾语)和不及物动词(不带宾语)。如:

    When will he arrive? 他什么时候到?(arrive 不带宾语,为不及物动词)

    He reached Beijing yesterday. 他昨天到达北京。(reach 带了宾语,为及物动词)

    有的动词既可用作及物动词也可用作不及物动词:

    The child is playing. 这小孩在玩。(不及物用法)

    The child is playing the piano. 这小孩在弹钢琴。(及物用法)

    He is writing a letter. 他在写信。(及物用法)

    The boy is reading. 这男孩在阅读。 (不及物用法)

    The boy is reading a magazine. 这男孩在看杂志。(及物用法)

    下面是对英语中实义动词与非实义动词知识的内容讲解,希望同学们很好的掌握。

    根据其含义和句子功用,动词可分为实义动词和非实义动词(包括时态助动词和情态助动词等)。如:

    He bought a story book. 他买了一本故事书。(buy 为实义动词)

    He has read the story book. 他已读过这本故事书。(has 为时态助动词,read为实意动词)

    He should read the story book. 他应该读读这本故事书。(should 为情态助动词,red为实义动词)

    现在完成时课件 篇9

    谓语动词构成:I/we/you/they have worked;   he/she/it has worked

    (1)表示过去某一时刻发生,且延续到现在的动作或状态,这种情况常与表示一段的时间状语连用

    We have lived here since last October. 自从去年十月份我们就一直住在这儿。

    She has studied English for 5 years. 她学英语已有5年之久

    (2) 表示某个已经发生且对现在造成影响或结果的动作,这种情况常不与任何时间状语连用

    I'm sorry I have lost my key. I can't open the door.

    对不起,我把钥匙弄丢了.门开不了了.

    She has left. If you want to see her, you'll have to come tomorrow.

    她已经走了.如果你想见她的话,你得明天再来一趟.

    谓语动词构成:I/ we/ you/ they have been working

    The Chinese have been making paper for two thousand years.

    中国有的造纸历史.

    I have been learning English since three years ago.

    自从三年前以来我一直在学英语.

    We have been waiting for you for half an hour. 我们已经等你半个钟头了.

    They have been living in this city for ten years.

    They have lived in this city for ten years.他们在这个城市已经住了了.

    I have been working here for five years.

    I have worked here for five years.我在这里已经工作两年了.

    I have been writing a book.(动作还将继续下去)我一直在写一本书.

    I have written a book.(动作已经完成)我已经写了一本书.

    I have known him for years. 我认识他已经好几年了.

    这类不能用于现在完成进行时的动词还有:love爱,like喜欢,hate讨厌,等.

    谓语动词构成:I/ we shall work  , he/ she/ it/ you/ they will work

    Perhaps I shall play a visit to France this winter.

    我可能在今年冬天到法国观光。

    Will you be at home at seven this evening? 今晚七点你会在家吗?

    (2)“be going to +不定式”多用于口语中,表示打算、将要发生的事.

    What are you going to do tomorrow? 明天你要干什么?

    Look at the dark clouds, there is going to be a storm. 看那乌云,暴风雨快来了.

    When are they to hand in their plan? 他们的计划什么时候交上来?

    The queen is to visit Japan next year. 女王将于明年访日.

    He is about to retire. 他即将退休.

    The English evening is about to begin. 英语晚会即将开始.

    (5)come,go等动词用“一般现在时”表示按规定、计划或时间表将要发生的事

    He starts next week. 他下个星期出发.

    We leave very soon. 我们很快就离开.

    (6)come,go等动词在口语中用“现在进行时”表示主语计划将要作的动作

    They are leaving for New York tomorrow. 明天他们将要动身前往纽约.

    Is your brother departing soon? 你的兄弟很快就要启程吗?

    谓语动词构成:I/we/you/they had worked;   he/she/it had worked

    (1)表示过去某一时刻之前已经完成的动作,常与由by,before引导的时间状语连用

    We had learned 5000 words by the end of last month.

    到上个月底为止我已经学了五千个单词.

    I had finished the composition before supper. 晚饭前我就已经把作文写完了.

    (2)表示过去某一动作之前已经完成的动作,常与由when,before等连词引导的时间状语从句连用

    When I woke up it had already stopped raining. 我醒来的时候雨就已经停了.

    I hadn't learned any English before I came here. 我来这儿之前没学过英语.

    I wondered who had taken the umbrella without permission.

    我想知道谁不经允许就把雨伞拿去.

    He told me that he had passed the exam. 他告诉我他已通过考试.

    (4)某些动词的过去完成时表示一个打算要做却没有做成的事.

    I had intended to come over to see you last night, but someone called and I couldn't get away. 昨晚我本打算来看你,但有人来找,脱不开身.

    We had hoped to catch the early bus, but found it was gone.

    我们本来希望乘早班车,却发现车已开了.

    If you had come yesterday, you would have met him.

    如果你昨天来的话,你就已经见到他的面了.

    She would have come if she hadn’t been so busy.

    要不是这么忙的话,她就已经来了.

    谓语动词构成:I/he/she/it was working; we/you/they were working

    (1)表示过去某一时刻或过去某段时间内正在进行的动作,一般要有表示过去时间的状语

    At that time she was working in Oxford. 那时,她正在牛津大学工作.

    It was raining at 6 o'clock this morning. 今天早晨六点钟天正下着雨.

    What were you doing when I phoned you last night? 昨晚我给你打电话时你在干什么?

    He was studying in Cambridge between and .

    在和那段时间,他在剑桥学习.

    From January to March I was traveling in Egypt.

    从3月份到4月份期间,我在埃及旅游.

    It was a sunny morning. Some people were sitting on the riverbank. Some were walking with their dogs. Several boys were playing football nearby...

    一个阳光明媚的清晨.河堤上坐着几个人.有的人在溜狗.不远处有几个男童在踢足球...

    这类动词有 come来, go去, leave离开, start开始, stay逗留 等.主语必须是人.

    He telephoned me, saying that his aunt was coming to see me soon.

    他打电话给我,说他姨很快就要看我了.

    谓语动词构成:I/we/you/they have worked;   he/she/it has worked

    (1)表示过去某一时刻发生,且延续到现在的动作或状态,这种情况常与表示一段的时间状语连用

    We have lived here since last October. 自从去年十月份我们就一直住在这儿。

    She has studied English for 5 years. 她学英语已有5年之久

    (2) 表示某个已经发生且对现在造成影响或结果的动作,这种情况常不与任何时间状语连用

    I'm sorry I have lost my key. I can't open the door.

    对不起,我把钥匙弄丢了.门开不了了.

    She has left. If you want to see her, you'll have to come tomorrow.

    她已经走了.如果你想见她的话,你得明天再来一趟.

    谓语动词构成:I am =I’m working   ,  she/he/it is = he’s等 working

    , We/you/they are =We’re等working

    Please don’t make so much noise, I’m writing a composition.

    不要吵闹,我正在写作文.

    Let’s set off, it isn’t raining now.咱们出发把,现在天不下雨了.

    Its four o’clock in the afternoon, the children are playing football on the sports ground.现在是下午4点,孩子们在操场上踢足球.

    We are working in a factory these days.这几天我们在一家工厂工作.

    They are compiling a dictionary.他们在编一本词典.

    They are leaving for New York tomorrow.明天他们将要动身前往纽约.

    He's always quarrelling with others.他老喜欢跟别人吵架.

    She is constantly worrying about her son's health. 她不停地为她儿子的健康担心着.

    The boy is forever asking questions.那个男孩老是提问问题.

    (6)有的现在进行时句子和一般现在时同义。用现在进行时表示问者的关切心情

    How are you feeling today? 你今天感觉如何?

    I am looking forward to your next visit.我盼望你下次再来.

    Why are you looking so sad? 为什么你看起来这么愁眉苦脸的样子呢?

    Our study is becoming more interesting. 我们的学习变得越来越有趣了.

    The leaves are turning red. 树叶渐渐地变红了.

    Wait a moment, I am finishing my supper. 等一会儿,我的晚饭就要吃完了.

    (8)“be”动词的现在进行时。“be”动词用于现在进行时表示说话者认为是短暂的、和平常不一样的、甚至是伪装的.

    He is being foolish. 他在装傻.

    He is being honest. 他表现得特别老实.

    I can't understand why he is being so selfish.我不明白此时他为何如此自私.

    现在完成时课件 篇10

    特殊疑问句:特殊疑问词或词组+一般疑问句(have/has+主语+过去分词(V-ed)+其他)

    过去分词变化规则如下:

    1 、规则动词:规则动词的过去分词的构成规则与规则动词的过去式的构成规则相同。四点变化规则:

    (1)一般动词,在词尾直接加“ ed ”。 work---worked---worked ,visit---visited---visited

    (2)以“ e ”结尾的动词,只在词尾加“ d ”。 live---lived---lived ,

    (3)以“辅音字母 + y ”结尾的动词,将 “y” 变为 “i” ,再加“ ed ”。

    study---studied---studied ,cry---cried---cried

    (4)重读闭音节结尾,末尾只有一个辅音字母,先双写该辅音字母,再加“ ed ”。

    stop---stopped---stopped , drop---dropped--dropped

    2 、不规则动词变化需参看不规则动词表逐一熟记。例如; cut- cut- cut,hit-- hit-- hit.

    现在完成时课件 篇11

    上一期我们学习了现在完成时的构成,在本期中,我们来学习现在完成时的用法(一)。

    现在完成时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。如:

    Have you read that story?你读过那个故事吗?(“读”这一动作发生在过去,对现在造成的影响是:是否知道故事的内容。)

    I have bought two apples. 我买了两个苹果。 (“买”这一动作发生在过去,对现在造成的结果是:拥有两个苹果。)

    在学习这一概念的同时,还应注意常与现在完成时连用的几个副词:already,just,ever,yet,never等。already,just多用于肯定句中,ever,yet,never多用于疑问句和否定句中。如:

    I have already finished my homework.我已经做完家庭作业了。

    He has just had his meal.他刚吃过饭。

    Have you ever sung this English song?你曾唱过这首英文歌吗?

    They haven't started yet.他们还没有动身。

    We have never heard of it.我们从来没有听说过这件事。

    现在完成时表示过去的动作对现在造成的影响;一般过去时表示动作发生的时间在过去。试比较:

    The plane has arrived . 飞机已经来了。(说明现在的情况:飞机在这儿。)

    The plane arrived a quarter of an hour ago. 飞机是一刻钟以前抵达的。(强调动作发生的时间在过去。)

    接触六:have been in, have been to 与have gone to 的用法

    1. have(has) been in 意为“已经在某地呆了多长时间”,常与表示一段时间的状语连用。如:

    Mr. Brown has been in Shanghai for three days. 布朗先生来上海已经有三天了。

    They have been in Canada for five years. 他们到加拿大有五年了。

    2. have(has) been to意为“曾经去过某地”,表示现在已经不在那里了。可与just, ever, never等连用。如:

    I've just been to the post office. 我刚才去邮局了。

    Have you ever been to Hangzhou? 你曾经去过杭州吗?

    Mary has never been to the Great Wall. 玛丽从未去过长城。

    3. have(has) been to 后面可接次数,表示去过某地几次。如:

    I've been to Beijing three times. 我去过北京三次。

    They have been to that village several times. 他们去过那个村庄好几次了。

    4. have(has) gone to 意为“到某地去了”,表示到了某地或正在去某地的途中。总之,说话时该人不在现场,一般不用第一、第二人称代词作句子的主语。如:

    -Where is Tom? 汤姆在哪里?

    -He has gone to the bookshop.他到书店去了。

    下列各句均有一处错误,请指出并改正。

    1. So far we learned about six hundred English words.

    2. I've been in Australia twice.

    3. -Have you had your lunch?

    -No yet.

    Key:

    1. learned → have learned 2. in →to 3. No→Not

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