英语人教版八年级下册现在完成时

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人教版八年级英语下册现在完成时讲解及练习

人教版八年级英语下册现在完成时讲解及练习

人教版八年级英语下册现在完成时讲解及练习现在完成时讲解现在完成时的基本结构是助动词have/has加上过去分词(done)。

在否定句中,主语后面要加上not,构成have/has not的形式。

在一般疑问句中,have/has要提到主语前面。

简略答语中,肯定回答要用Yes,后面跟主语和have/has;否定回答要用No,后面跟主语和haven't/hasn't。

现在完成时可以表示过去发生或已完成的动作对现在的影响或结果。

比如说,“I have spent all of my money (so far)”表示现在我没有钱花了。

另外,现在完成时也可以表示发生在过去某一时刻的、持续到现在的动作或状态。

这时常常和for(+时间段)或since(+时间点或过去时的句子)连用。

例如,“Mary has been ill for three days”表示玛丽已经生病三天了,“I have lived here since 1998”表示我自1998年以来一直住在这里。

现在完成时还有一些标志词,可以表达过去完成的动作对现在的影响。

这些标志词包括already、just和yet。

例如,“He has al ready got her help”表示他已经得到她的帮助,“He hasn't come back yet”表示他还没有回来。

This is the best film I have ever seen。

I have never seen a better movie before.He has never been to Beijing before。

He has never had the chance to visit Beijing.He says he has been to the USA three times already。

He has had the opportunity to visit the USA on three separate ns.So far。

人教版英语八年级下册现在完成时(易懂版本)

人教版英语八年级下册现在完成时(易懂版本)

现在完成时一、两个含义:①表示动作发生在过去,但对现在的情况造成了影响。

(借古讽今)He opened the door.The door is open.I saw the movie.I have seen the movie.I got married.I have got married.②表示从过去某一时间开始一直延续到现在并还可能继续延续下去的动作,用于延续性动词,且句中常带有表示一段时间的时间状语,如:since + 时间点/从句,for two months, so far等。

(从古至今)I have learned English for 10 years/since 10 years ago.I have lived in Chengdu for 12 years/since 12 years ago.I have been a teacher for 2 years/ since 2 years ago.二、构成have/has+动词的过去分词(done)三、标志词for, since, already, yet, before, recently, over the …., in the past few…..四、already与yet的区别already用于肯定句(已经)yet用于否定句(还)和疑问句(已经)ever & neverever作副词,意为“曾经”,常用于现在完成时的一般疑问句和肯定句中,置于主语之后,过去分词之前。

never作副词,意为“从不;从未”,用于现在完成时中,表示否定,位于助动词have/has之后,过去分词之前。

五.have been to & have gone to & have been inhave been to 去了某地,已回have gone to 去了某地,未回have been in 在哪里待了多久后面是地点副词there、here、home 时,省略to六、延续性和非延续性1. 含义:延续性动词表示能够延续的动作,这种动作可以延续下去或产生持久影响。

Unit8现在完成时课件人教版八年级英语下册

Unit8现在完成时课件人教版八年级英语下册

1.找
2. 变
3.去
4.加
What have they haddaomeal at a restaurant since they left school?
特殊疑问句
特殊疑问句= 特殊疑问词+ 一般疑问句
what who when which why what color what time
代替事物、事情 代替人 代替时间 代替事物,表选择 代替原因 代替颜色 代替时间点
2、before 表示之前发生的事情,放在句末。 I have been。
现在完成时的时间状语:
3、yet 放在否定句和一般疑问句句末。
just, before, recently,still, lately, never, ever, twice, on several occasions, in the past/weeks/months/years, till now.
6、ever
表示经常的或习惯性的动作,常与表示频率的时间状语连用。 放在 have/has后面,动词后面
例句:Their debts have grown ever larger. 他们的债务不断增加。
根据句意,完成下列句子 1,They _h_a_v_e_g_o_n_e (go) to the Beihu Park this year.
2,以不发音的e结尾
+d
3, 辅音字母+y结尾
改y为i+ed
4,以重读闭音节结尾, 双写该辅音字母
末尾只有一个辅音字母
+ed
示例
work---worked visit---visited
live---lived hope---hoped

Unit 9 现在完成时-八年级英语下册(人教版)

Unit 9 现在完成时-八年级英语下册(人教版)
1. ever, never 分别表达什么意思?用于什么句子中,在句子的什么位置?
2.Me, too. = So have I. Me, neither.= Neither have I.
现在完成时
现在完成时可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。 e.g. I have lost my pen. (我现在无钢笔可用)
—Sorry, he isn’t in. He __h_a_s_g_o_n_e__to___ the school library. 2) —Are you looking forward to going to Paris?
—No. I __h_a_v_e__b_e_e_n_t_o__ the city twice. 3) —Are you interested in going to the Palace Museum?
He __h_a_s_n_'t_ __ea_t_e_n__ all the food on the plate ___y_et___. 3) —Has Peter driven a car before? (作肯定回答)
—__Y__es___, ___h_e___ ___h_a_s__. 4) —Mary, have you got a job yet? (作否定回答)
考点三:一些短暂性动词转换成意义相近的延续性动词或 be+形容词 / 副词 / 介词短语 / a(n)+名词,与表示 一段时间的状语连用。如:buy → have borrow → keep move → live die → be dead open → be open close → be closed fall asleep → be asleep marry → be married leave → be away come → be in / at begin / start (电影等开始) → be on join → be in +组织 / be a member in +组织

现在完成时(unit8--unit10知识点总结)人教版英语八年级下册

现在完成时(unit8--unit10知识点总结)人教版英语八年级下册

现在完成时一.定义三要素与构成〔has/have done〕1.表示到现在为止已经完成或刚刚完成的动作。

By now, I have remembered 1000 English words.2.一件发生在过去的事情对现在产生影响。

常见时间状语:常和already〔已经〕,yet〔已经〕,just〔刚刚〕,still〔仍旧〕,so far〔到目前为止〕,till now,(直到现在),before〔以前〕,ever〔曾经〕,3 times(三次),in the past/last..years(在过去几年)I have spent all of my money so far.(1)already:〔已经〕用于确定句位置:放于助动词与done 之间或者放在句末(2)yet:疑问句〔已经〕否认句〔还〕位置:常放句尾(3)ever(曾经):疑问/确定位置:助动词与done之间(4)never〔从不〕位置:助动词与done之间【练习】〔1〕——你吃过早餐了吗?—Have you had breakfast ____?——是的,我已经吃过了。

/不,我还没吃。

—Yes,I have ________ had it./No,I haven’t had it ____.〔2〕I have ______ read this book,so I don’t know what it is about.〔3〕—Have you _____ been to the Great Wall? It’s so wonderful and great.—No,I have ______ been there.3.一个动作开头于过去,并持续到现在〔或许还将持续下去〕。

常见时间状语:①for+一段时间“长达/持续了……②since+过去一个时间点,表示“自从……以来〞时间段+ago,表示“从……以前〞+for+时间段从句〔一般过去时〕eg:Mary has been ill for three days.We have been classmates since 2 years ago.【练习】〔1〕我已经住在这里十年了。

人教版英语八年级下册第八单元:现在完成时语法

人教版英语八年级下册第八单元:现在完成时语法
我已经读完这本书了。 Have you finished reading he book already?
你已经读完这本书了么? yet 一般用于疑否句中,在句中意为“已经”;在否 定句中意为“还”通常放于句末。 如: Have you found the book yet ?
你已经找到那本书了么? Not yet . 还没找到。 She hasn’t finished her homework yet.
He _h_a_s_n_’_t __f_in_i_s_h_e_d__ his homework _y_e_t__. 3. Mum’s cooked the dinner. (改为否定句)
Mum _h_a_s_n_’t__ _c_o_o_k_e_d_ the dinner.
4.She joined the music club last week.( 改为现在完成时 ) She h_a_s_ _b_e_en__ _i_n___the music club __f_or__two weeks. 适当形式填空 5.He ____ha_s__le_ft____(leave ) the country and gone to India. 6.I have __be_e_n__(be )here for two months. 7.I’m waiting for my son . He __h_a_s_n’t__c_o_m_e_( not come )
---They have been here since 2008. Tom bought the car in 2009
---Tom have had the car since 2009.
语法加油站
一、句型转换。 1. I’ve already had dinner. (改为一般疑问句)

人教版八年级英语下册现在完成时

人教版八年级英语下册现在完成时

2. 辨析:for & since 的用法(表示动作或状态的持续)
标志词
含义
for + 时间段短语
“持续了…时间”
since + 时间点从句
“自从…”
【总结】 • 提问用how long,回答时两者一般放在句末,since可以放在句首 • 该时态与for/since连用表示动作或状态的持续时,使用延续性动词 • 若since引导从句,从句使用一般过去时
【练习3】选出正确选项。 ( B ) 1. Mathew_______ already _______ in Stone Town since 1998.
A. have, lived
B. has, lived
C. have, live
D. has, living
( C ) 2. We have been good friends since they ______ to China.
have been away from
have, lived
B.
came
D.
• ever 【adv.曾经】 _____________________________________
• never 【adv.不曾】
他刚来到。 He has just come. 我已经把邮件发送出去了。 I have already sent the email. Betty曾经到过上海。 Betty has ever been to Shanghai. 她不曾看过这部电影。 She has never seen this film.
3. 延续性动词 & 非延续性动词
【非延续性动词转化成延续性动词】 • 实质:瞬间行动作 → 状态

英语人教版八年级下册Unit 8 语法——现在完成时态

英语人教版八年级下册Unit 8 语法——现在完成时态

eg: 1. My mother has just washed the clothes. 2. She never met the boy before. 3. Has she ever heard of this song? 4. He has been there three times in the past few years. 5. How many times have you been there this year?
过去
现在
将来
一般过去时态 过去进行时态
一般现在时态 现在进行时态
一般将来时态
过去
发生的动 作或行为
现在
强调现在 的状态
造成影响或结果
现在完成时态
I have already eaten my breakfast. 我已经吃过早饭了。
发生在过去的动作或行为(eat breakfast) 对现在造成的结果就是“现在肚子是饱的”
用法: 1. 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,并强调这一 影响。常用的时间状语有 just, yet,already,ever,never,before,in the past few years,so far等等。 2. 表示发生在过去的某一动作一直延续到现在,并且有可能继续延续下去。 常用的时间状语有“for + 一段时间”,“since + 表示过去的时间点或从句”。
辨别: I did my homework for an hour last night. I have done my homework for an hour .
注: 现在完成时态的这一用法句子的谓语动词必须为延 续性动词。
eg: Jane has waited for her friend for a long time.

英语人教版八年级下册现在完成时

英语人教版八年级下册现在完成时

现在完成时一、 (1) 概念:现在完成时表示过去发生或已经完成的动作: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。

对现在造成的影响或结果。

1. I have already c leaned cleaned my room. 我已经打扫了我的房间。

我已经打扫了我的房间。

2. We have finished our homework. 我们完成了作业。

我们完成了作业。

3. They have swept the floor. 他们扫了地。

他们扫了地。

4. She has read t hat book. that book. 她读了那本书。

她读了那本书。

5. Tom has broken the window. Tom 打碎窗户。

打碎窗户。

现在完成时的构成现在完成时的构成: : 主语主语 + + + +1. I haven haven’’t cleaned my room yet. 我还没打扫了我的房间。

我还没打扫了我的房间。

2. We haven haven’’t finished our homework. 我们没完成作业。

我们没完成作业。

3. They haven haven’’t swept t he floor. the floor. 他们没扫地。

他们没扫地。

4. She hasn hasn’’t read t hat book. that book. 她没读那本书她没读那本书5. Tom hasn hasn’’t broken t he window. Tom the window. Tom 没有打碎窗户。

没有打碎窗户。

否定句否定句: : 主语主语主语 + + + + + +1. Have you c leaned cleaned my room?Yes,I have.2. Have y ou you finishedour homework? No,I haven ’t. 3. Have they swept t he floor?the floor? Yes,they have. No,they haven ’t.4. Has she read t hat book?that book? Yes,she has. No,she hasn hasn’’t.5. Has Tom broken t he window?the window? Yes,Tom has. No,Tom hasn ’t.一般疑问句一般疑问句: : 助动词助动词助动词 + + ? + + ?(2) 现在完成时的基本句型:肯定句:肯定句:否定句否定句: : 一般疑问句:一般疑问句:二、现在完成时标志词1.I have already lost the key.2.She hasn ’t told us the news yet .3.Have you decided to go yet ?4.I have just cleaned my hands.5.John has never been to Nanjing6.Have you ever been to a museum?7.He has stayed here since 5 5 o o ’clock.David has lived here since 1992.8.He has has stayed stayed stayed here here since 5 5 hours hours hours ago. ago.His father has been in the Party since 10 years ago.9.She has taught English since he he came came came here. here.She has taught us since I came to this school.10.He has kept the book for 2 weeks.I have had this dictionary for t hree years.three years. Since: (自…以来)(1)(2)(3)for(长达)just (谓语动词之前谓语动词之前谓语动词之前) before() before(句末)句末) so far so far 到目前为止到目前为止in the past/last few years(过去几年来过去几年来) )练一练:练一练:选用选用 for for 和 since 填空填空: :1.We haven ’t seen each other ______ a long time.2.His father has been in the Party ______ 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.1.The house is dirty. We _______it for weeks.A didn ’t cleanB hadn ’t cleanedC don ’t cleanD haven ’t cleaned2. ---Have you found your keys _______---Yes, I have _______ found them.A already; yetB yet;alreadyC already;alreadyD yet;yet3.3. -- I ’m sorry to keep you waiting.--Oh, not at all. I _____here only a few minutes.A have beenB had beenC wasD will be4.4. You don ’t need to describe her. I _______ her several times. A. had met B have met C met D meet5. --Will you go to Beijing for vacation ?--I _______ to go , but I don ’t know if I can go .A was planningB have plannedC had been planningD have been planning planning6. --When will they leave ?--They ______very soon .A do leaveB are leavingC have leftD leave7 --Was he studying for an exam ?--Yes , he's ____ it last week.A doingB to takeC makingD to give8.The teacher told the pupils that the earth ____ round.A isB wouldC wasD were9.9. She _______ such an interesting book before.A was never readingB will never readC had never readD has never rea10.10. How long do you think the meeting ______A is lastingB is lastedC will lastD lasts11. 11. I ____________(wait) for him for two hours . I am very angry . I ____________(wait) for him for two hours . I am very angry .12. 12. He _________ (be) a doctor since he was twenty .13. 13. The film __________ (be) on for fifteen minutes .14. 14. ____ you ever ____ (read) that book before ?15. 15. ____ you ever ____ (try) to change her ?16. 16. No one ____________ (arrive) here yet . No one ____________ (arrive) here yet .17. 17. ______ the bus _____ (leave) yet ?18. 18. I____ I____ I____ already already already ______ ______ ______ (see) (see) (see) the the the film. film. film.19. 19. My My My father father father ____ ____ ____ just just just _____ _____ _____ (come) (come) (come) back back back from from from work. work.20. 20. I I I _____________ _____________ _____________ (work) (work) (work) here here here since since since I I I ______ ______ ______ (move) (move) (move) here here here in in in 1999. 1999. 21. 21. So So So far far far I I I _______________(make) _______________(make) _______________(make) quite quite quite a a a few few few friends friends friends here. here.22. 22. -How -How -How long long long _______ _______ _______ the the the Wangs Wangs Wangs _______(stay) _______(stay) _______(stay) here? -For here? -For two two weeks. weeks. weeks.23. 23. I I I ________ ________ ________ just just just ___________ ___________ ___________ (finish) (finish) (finish) my my my homework. homework. homework.24.______ 24.______ you you you ______ ______ ______ (find) (find) (find) your your your science science science book book book yet? yet?一般过去时与现在完成时之比较1)一般过去时表示过去某时发生的动作或单纯叙述过去的事情,强调动作,和现在不发生关系。

2024年+寒假语法:现在完成时人教版八年级英语下册

2024年+寒假语法:现在完成时人教版八年级英语下册

Lesson10时态:现在完成时一、定义:1. 表示过去发生或已经完成的动作对现在造成影响或结果。

2. 表示从过去开始,一直持续到现在的动作或状态。

二、构成:(1)肯定式:主语+ has/have + 过去分词+ 其他。

eg: I have cleaned the room. (我已经打扫过房间了。

)(2)否定式:主语+ has/have + not(hasn’t/haven’t) + 过去分词+其他。

eg: I haven’t cleaned the room. (我还没有打扫过房间了。

)(3)疑问句:Have/Has + 主语+ 过去分词+ 其他。

eg: Have you cleaned the room? (你打扫过房间了吗?)(4) 简略答语:Yes, 主语+ have/has./ No, 主语+ haven’t /hasn’t. eg: Yes, I have. (是的,已经打扫过了。

) / No, I haven’t. (不,还没有打扫过。

)三、过去分词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—dropped2. 不规则动词:cost—cost—cost shut—shut —shut spread —spread—spreadread —read —read (read原形发音为/ri:d/,过去式和过去分词发音为/red/)come —came —come burn— burnt —burnt catch —caught —caught dig —dug —dug feel —felt —felt fight—fought — fought make—made — made break —broke —broken choose—chose—chosen write —wrote —written四、现在完成时的用法及标志1. 表示过去发生的动作对现在造成的影响或结果。

英语人教版八年级下册现在完成时态的基本规则大全

英语人教版八年级下册现在完成时态的基本规则大全
(过去几年来,我的家乡发生了很大的变化。)
Where did you work in the past?
(你过去在哪里工作?)
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★五、ever since then与from then on (after that)都有“打那以后”之意, 前者是完成时的时间状语,后者常 用作一般过去时的时间状语。

要 内
现在完成时

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现在完成时
现在完成时的构成 现在完成时的主要用法 现在完成时的时间状语
短暂性动词与时间段的关系 have been 与have gone 比较
与一般过去时的用法比较
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现在完成时的构成
助动词
have/has +过去分词
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现在完成时的主要用法
一.表示过去发生的事情对现在的影响 或产生的结果。
Li Lei has just cleaned the windows. (现在窗户是干净的。)
I have already finished my homework. (我已经完成了作业,不需再做了。)
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现在完成时的主要用法
二.表示从过去某一时刻开始并一直延续到 现在的动作或事情,但动作或事情可仍在 继续。
I have learnt English for about two years.我已经学了大约两年多的英语。
She has lived in Chongqing since 2000. 她自从2000年以来一直住在重庆。
She’s lived here ever since then.

Unit8现在完成时人教版八年级英语下册

Unit8现在完成时人教版八年级英语下册

八下 Unit 8 现在完成时(一)一、用 never,ever, already , yet填空。

1. I have seen him before, so I have no idea about him.2. Jack has finished his homework.3. Have you seen this film? No, I have seen it.4.Has the bus left ? Yes,it has left.5. Sally hasn't finished reading her new book .二、用括号中所给单词的适当形式填空。

1. The young man (live)alone since he worked in Beijing.2. Miss Lee ( teach)us English since she came here three years ago.3.Lily (listen)carefully but heard nothing important.4.Shall I tell Tom the good news?No, you needn't. I (tell) him already.5. Turn off the radio,dear. The baby is sleeping.There is no need. He (wake) up.三、单项选择。

1. Today, all the erhu masters play and praise“Erquan Yingyue”.It one of China's national treasures already.A. beesB. becameC. has beeD. being2. He promised to pick me up at the school gate. However, he yet.A. didn't arriveB. doesn't arriveC. isn't arrivingD. hasn't arrived3.China develops so fast.That's true. It a lot already.A.changesB. changedC.will changeD. has changed4. My aunt is a writer. She more than ten books since 1980.A.writesB. wroteC. has writtenD.will write5. you the movie Wolf Warrior II?Not yet. I'll see it this Sunday.A. Did; seeB.Do; seeC.Have; seenD.Will; see四、句型转换。

人教版英语八年级下册Unit9现在完成时优秀教学案例

人教版英语八年级下册Unit9现在完成时优秀教学案例
(三)情感态度与价值观
1.培养学生对英语学习的兴趣,激发学生积极思考和主动参与的热情。
2.帮助学生建立自信心,鼓励学生大胆开口说英语,不怕犯错误。
3.培养学生关爱他人、尊重他人的价值观,通过小组合作和课堂展示,让学生学会倾听、理解和接纳他人的观点。
4.实、表达情感的能力。
二、教学目标
(一)知识与技能
1.让学生掌握现在完成时的结构:主语+ have/has +过去分词。
2.让学生了解现在完成时的基本用法,包括表示过去发生的动作对现在造成的影响或结果,以及表示过去发生的动作到现在为止的时间范围。
3.让学生能够运用现在完成时描述自己的经历、表达观点和询问信息。
4.让学生学会使用现在完成时进行比较和顺序排列。
4.反思与评价:通过反思与评价的环节,让学生对自己的学习进行思考和总结,培养他们的自我反思和自我评价能力。同时,学生之间的互相评价和教师对学生的评价也能够帮助学生了解自己的不足之处,进一步提高自己的学习能力。
5.教学策略的灵活运用:通过情景创设、问题导向、小组合作和反思与评价等多种教学策略的灵活运用,使得整个教学过程丰富多样,充满活力。这种多样化的教学策略不仅能够满足不同学生的学习需求,还能够激发学生的学习兴趣和动力,提高他们的学习效果和成就感。
3.设计一些开放性问题,激发学生运用现在完成时表达自己的观点和看法,例如:“你认为现在完成时在日常生活中的应用场景有哪些?”“你如何看待现在完成时在英语交际中的重要性?”
(三)小组合作
1.将学生分成小组,每组选择一个主题,如家庭、学校、朋友等,运用现在完成时进行讨论,总结每个人在小组主题方面的经历和感受。
2.教师设计一些问题,引导学生运用现在完成时进行思考和讨论,如:“Can you describe an unforgettable experience you had with your family?”、“Have you ever been to a foreign country?”等。

人教PEP八年级英语下册Unit10 理解【现在完成时】的用法

人教PEP八年级英语下册Unit10 理解【现在完成时】的用法
续下去
时间标志
since+过去时间点
for+时间段
since+时间段+ago
sice从过去到现在到将来
6
教学过程
PROCESS
运用“Sb has done sth for+一段时间. ”进行造句。
They are the actors who will have their show. Please guess how long they have prepared for their shows.
现在完成时:表示从过去已经开始,一直持续到现在,并且有可能 继续下去的动作或状态。
2
教学过程
PROCESS
找出例句中的标志词,并分析不同点。
She has lived in Beijing for 30 years. fo r
一段时 间
She has lived in Beijing since 1988.
人教版英语八年级下册Unit 10
理解【现在完成时】的用法
教学过程
PROCESS 理解例句所表达的时间。
She has lived in Beijing for 30 years.
She has lived in Beijing since 1988.
分析语境:“我已经在北京生活了30年。”,“自从 1988年起,我一直生活在北京。”。结合以上两个示例: 从1988年起到现在,我都生活在北京,并且可能以后继 续在北京生活。
The boy has prepared his show for 6 months.
She has…for…
7
教学过程
PROCESS
运用“Sb has done sth since+时间点(从句). ”进行小组讨论。

英语人教版八年级下册现在完成时复习

英语人教版八年级下册现在完成时复习

• for: (长达)
for+ 时间段
He has kept the book for 2 weeks(两个星期) .
Exercise 3:Fill in the blanks with for or since
1. Mr. Brown has had his TV ________ for 15 years. 2. I’ve taken driving lessons _________ since last month. 3. My sister has had her cell phone ________ for a month . since 4. My friends haven’t visited me ___________ my birthday.
三,常用于现在完成时的时间副词,介词:
already (已经),用于肯定句, yet(已经), 用于否定句,疑问句,
just(刚刚) , ever(曾经) , never(从不) , before(以前) , since+过去时间点(自从…以来) , for+时间段(长达)
in the past several days / weeks/ years(在过去的…), recently(最近) , so far(到目前为止)
9.我从没去过北京。
10.Tom 已经去了北京。
四,现在完成时用法之一: 1)现在完成时表示过去发生的动作,并对现在有影响。
1.I have already lost the key. 2.I haven’t read that book yet . 3.I have never seen him. (我现在没有钥匙) (不了解书的内容) (不知道他长什么样) (你了解不了解电影内容)

英语人教版八年级下册现在完成时的概念及用法

英语人教版八年级下册现在完成时的概念及用法
3. 现在完成时往往同表示不确定的过去时间状 语连用,如already, yet, just, before, recently, still, lately等。
例句:Have you ever been to Beijing? (你曾去过北京吗?) I have never heard of Bob. (我从未听说过鲍勃。) I have used this pen only three times. (我只用过这只钢笔三次。)
( not / finish )
4.You are going to a restaurant this evening. You phone to reserve(预定)a table. Later your friend sayI sha‘SvheaalllreIapdhyodnoentoe reserve a table? ’You say: No,__________________ (do) it.
例句:Thomas has studied Russian. (含义:现在不再学俄语) Thomas has studied Russian for three years. (=Thomas began to study Russian three years ago, and is still studying it now. (同第2点用法第一个例句)
3.You are eating in a restaurant this evening. The waiter thinks you have finished and starts to take your plate away.You saIyh:aWveanit’tafinished it yet. moment !_______________________

人教版八年级英语下册现在完成时态讲解和练习

人教版八年级英语下册现在完成时态讲解和练习

现在完成时态讲解和练习一、结构现在完成时态由“助动词have/ has+过去分词” 构成陈述句I have lost my pen.否定句I haven’t (have not)lost my pen.一般疑问句Have you lost your pen? Yes, I have. / No, I haven’t.特殊疑问句I have lost my pen. (提问) What have you lost?选择疑问句Have y ou lost your pen or pencil?过去分词变化:(1)与过去式一样:直去双改(2)不规则:AAA ABB ABA ABC AABbuy-bought-bought make-made-made read-read-read write-wrote-written beat-beat-beaten become-became-become 二、基本用法:(一)表示过去的动作或状态对现在造成的影响或结果。

如:(1)He has come 他来了(他现在在这儿)(2)He has turned on the light 他已经把灯打开了(房间是亮的)(3)She has learned to skate 她学过滑冰(她现在会滑冰)(4)He has been to Armenia 他去过美国(他现在不在那里,但知道那里的情况)✧考点探究:1、对这种用法的考查,主要考查学生对现在完成时态的判断。

这种用法强调过去动作对现在造成的影响,因此,在题干中常用一般现在时态或一般将来时态的句子来说明这种影响或结果。

(口诀:前后两句呈因果,必用现在完成时)如:(1)I ___________ (spend) all the money, so I have to walk home.答案为have spent. 花光钱是过去的动作,但对现在造成了影响,“我现在必须得步行回家”。

人教英语八年级下册 现在完成时 中考考点解读

人教英语八年级下册 现在完成时 中考考点解读

Fill in the blanks with “since” and “for”.
for since since
1. I’ve know Li Lei _____ ten years.
2.I have lived here _____ 2f0o0r2.an hour
3.The meeting has been on ____ an housirnacgeo. 5.She has taught us ______I came to the school. 6.It’s about ten years ______ he left his home.
A. knew B. have known C. must know D. will know
2.You don’t need to go out to buy food. I ______C_some food
online.
A. order B. ordered C. have ordered D. will order
一.考点解读:
人教英语 8年级下册
现在完成时的中考考点: 考点1:考查基本概念。 考点2:考查时间状语。
考点3:考查与现一在般完过成去时时的区别。 考考点点45::考考查 查中非词考延组续h考a性点ve动解/h词读a的s b用e法en。to ,
have/has gone to与have/has been in/at的区别
since
since 和for 用法小结:
1.for+时间段
2.since+时间点(过去) 3.since+一段时间+ago=for+时间段 4.since+从句(常用一般过去时) 5.It’s+一段时间+since(过去时的句子)

人教版英语八年级下册Unit8语法全解:现在完成时

人教版英语八年级下册Unit8语法全解:现在完成时

语法全解:现在完成时一、现在完成时的构成〔一〕肯定式主语+助动词have/has+过去分词+其它.说明:这里的have/has是助动词,没有什么具体意义。

当主语是第三人称单数时助动词用has,其余人称一律用have。

has, have的缩略式分别为’s或’ve。

规那么动词过去分词的构成与过去式的构成方式一样,不规那么动词可参看不规那么动词表。

实例:1) I’ve just copied all the new words.我刚抄写了所有的生词。

(表示不要再抄了)2) She has lost her books.她丧失了她的书。

〔表示到目前为止还没有找到〕(如果用过去时:She lost her books.那么强调书是过去丢的这一动作,而不知现在有没有找到。

)3) We’ve just cleaned the classroom. 我们刚好清扫了教室。

〔说明现在教室是干净的〕〔二〕否认式主语+助动词have/has+not+过去分词+其它.说明:现在完成时构成否认句时,只需在助动词have/has后面加not就行。

have not, has not的缩略式分别为haven’t, hasn’t。

另外,肯定句中有some, already时,改为否认时要分别改成any, yet。

例:1)I haven’t finished my homework yet.我还没有完成我的作业。

2)She hasn’t travelled on a train. 她没有坐火车旅行过。

3)We have never spoken to a foreigner.我们从来没有和外国人说过话。

注:有时not可以用never代替,表示“从来没有〞的意思。

又如:4) I have never seen him before.以前我从来没有见过他。

〔三〕一般疑问式助动词Have/Has +主语+过去分词+其它?说明:把陈述句中的have或has放到句首,句末打问号,同时把句中的some, already改为any, yet就构成了一般疑问句。

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(三)一般疑问式
助动词Have /Has +主语+过去分词+其它 1)——Have you ever made dumplings ?你曾经做过饺 子吗? ——Yes ,I have .是的,我做过。 2)——Has she ever been abroad ?她曾经出过国吗? ——No,never.不,从来没有。 3)——Have they found the lost books yet ?他们已经 找到了丢失的书吗? ——Yes ,they have.是的,他们找到了。
5.never意为从来没有常与before连用(before) 要放在句尾,而never多放在助动词与过去 分词之间。eg:
I have never travelled by plane before. 我以前从来没有乘飞机旅行过。
6.before意为以前,指过去不确定的某个时 间,总是放在句末,不受句型的限制。eg:
1.already意为已经,通常用于肯定句中,可 放在助动词之后,过去分词之前,也可以放 在句末。实例:
1)I’ve already read this book. 我已经读过这本书了。 2)I’ve washed my clothes already.我已经洗了衣服。 3)Have you met him already ?你(真的)已经见过他了?
现在完成时
一、现在完成时的基本结构 (一)肯定式 主语+助动词have /has +过去分词+其它
1)Ive just copied all the new words .我刚抄写了所 有的生词。 2)She has lost her books .她丢失了她的书。 3)We’ve just cleaned the classroom .我们刚好打 扫了教室。


(二)否定式
主语+助动词have /has+not+过去分 词+其它
1)I havent finished my homework yet.我还没有完 成我的作业。 2)She hasnt travelled on a train .她没有坐火车旅 行过。 3)We have never spoken to a foreigner.我们从来 没有和外国人说过话。 4)I have never seen him before.以前我从来没有 见过他。
3.just意为刚刚,表示行为刚刚过去,常放在 助动词 与过去分词之间。eg:
He has just come back from school . 他刚从学校回来。
4.ever意为曾经,用于疑问句或否定句中, 放在助动 词与过去分词之间。eg:
1)Have you ever been to Hong Kong ? 你曾去过香港吗? 2)I havent ever spoken to her. 我未曾和她说过话。
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. 2)我买这辆自行车三年了。 误:I have bought this bike for three years. 正:I have had this bike for three years.
: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。此时,常与 时间副词already(已经) ,yet(还、已经) ,just(刚刚、 仅仅) ,ever(曾经) ,never(从不) ,before(以前)等 连用。这几个副词的用法如下:
eg:


1)I’ve lived here since 1990. 自从1990年以来我就住在这里。 = Ive lived here since 13 years ago. = Ive lived here for 13 years. = It is 13 years since I began to live here. 2)I haven’t seen him for three years . 我三年没有看见他了。 = I haven’t seen him since three years ago = I haven’t seen him since 2000. = It is 3 years since I saw him last time. 3)Mr Wang has worked in the factory since he came to the city . 自从到这个城市以来,王先生一直在这家工厂工作。 4)Shes been at this school since five years ago. 自从五年前以来她就在这个学校。
1)Have you been to Hainan before ? 你以前去过海南吗? 2)I havent eaten Guangdong food before. 我以前没吃过广东菜。
(二)现在完成时用法二 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。 for + 段时间 since +点时间

2.yet用在疑问句中意为已经,用在否定句 中意为还,常放在句末。实例:
1)——Has he found his watch yet ? 他已经找到他的手表了吗? ——No,not yet. 不,还没有。 2)The woman hasnt found her dog yet . 那位妇女还没有找到她的狗。
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