牛津英语8B Unit1 Grammar现在完成时课件p
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牛津版八年级英语下现在完成时态ppt课件
❖
用法二：
表示过去某个时间开始的动作 或存在的状态，一直持续到现
在并可能还将持续下去。动词
使用延续性动词。常与for或
since引导的时间连用
for+段时间 since+点时间 since+句子（过去时）
E.g. Kate has lived here for 3 years.
Kate has lived here since 3 years ago.
❖ The football match has begun.(since9:00a.m) The football match has been on since 9:00 a.m.
❖ The twins have joined the army. (since they are 18years old) The twins have been soldiers/ been in the army since they are 18years old.
Kate has lived here since she came to China.
经营者提供商品或者服务有欺诈行为 的，应 当按照 消费者 的要求 增加赔 偿其受 到的损 失，增 加赔偿 的金额 为消费 者购买 商品的 价款或 接受服 务的费 用
常见非延续性动词和延续性动词的转变
❖ arrive/come/go to be in
have a cold get up be up
❖ get to know
know get out
be out
❖ close
be closed wake up
be awake
❖ go to sleep
be asleep/ sleep
牛津译林版英语8B unit 1 grammar (共40张PPT)
10 grow
11 hit
grew
hit
12 enjoy enjoyed
五：现在完成时的时间副词和时间短语:
• • • • • • • • already: 肯定句，表示已经发生 ever: 疑问句，表示“曾经” for: 肯定句/疑问句/否定句，表示一段时间 just: 肯定句，表示“刚刚” never: 否定句，表示“从不” recently: 肯定句/否定句/疑问句，表示“最近” since: 肯定句/否定句/疑问句, 表示“自---以后” yet: 疑问句/否定句, 表示“已经”或者“还没 有”
四、 过去分词的构成
(A) 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
e.g. Have watched _______you __________the film?(watch) Yes, I _______. have
Has _______your father watched ________the film?(watch) No, he _______. hasn’t
优秀课件牛津译林版8下Unit1 Grammar课件 (共18张PPT)
3. 一般疑问句及回答： 将have/has提到句首
Have/Has + 主语 + 过去分词---？ Yes, --- have/has. No, --- haven’t/hasn’t.
e.g.
_______you _______the film?(watch) Have watched Yes, I _______. have Has watched _______your father ________the film?(watch) hasn’t No, he _______.
2. 否定句：
主语 + have/has + not + 过去分词
e.g. They haven’t _______________ finished their homework yet. (finish）
He _______________ hasn’t finished his homework yet. （finish)
His grandfather has been dead for 3 years. 他的爷爷去世三年了。 2. 过去发生的某一动作对现在造成的影响 Eddie has eaten Hobo's food. 埃迪吃了我的食物。 3.从过去到现在某一动作发生的次数 I have seen the film three times. 这部电影我已经看了三遍了。
对for/since引导的时间词提问用How long
8. 其它：so far 到目前为止 over/during the years 在过去的数年期间 in the past ten years 在过去的十年里 twice/many times 两次/许多次 over the past century在过去的一个世纪里
牛津译林版英语八年级下册Unit1 Grammar精品课件 (共24张PPT)
时间段+ ago；3)since+ 从句。
已经，常用于否定句，疑问句尾。 for 长达……，for+ 时间段。 recently 最近，常用于肯定句，否定句或疑问句 中。 ever just 曾经，常用于疑问句。 刚刚，用于肯定句中。
一般现在时和现在完成的区别
一、概念不同
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，和现在没有关系。 和现在不发生关系。 表示过去发生的某一动作对现在造成的 影响或结果，强调的是现在的情况。
现在完成时定义
现在完成时定义三要素： 1.表示到现在为止已经完成或刚刚完成的动作。 2.一件发生在过去的事情对现在产生影响。 3.一个动作开始于过去，并持续到现在(也许还将 持续下去)。
观察与思考
1
I have just eaten it.
You have cleaned up the window.
6. Our teacher __________(teach) us a lot about the history has taught
of China.
C. Help Millie and Sandy complete the conversation
Millie: (1)_____ any films recently, Have you ______(see) seen
二、句型转换。 1. She has already cleaned the kitchen. (改为否定句) She _________ cleaned the kitchen ________. hasn’t yet 2. They have visited some interesting places in China. (改为一般疑问句)
牛津译林版8B Unit1 Gramma (共45张PPT)
past
present
4 years
一.现在完成时的含义
表示过去已完成的动作对现在产生的影响，常与 “already、ever、just 、never、recently、yet”等连 用； We have just finished the report. He has not returned the book to me yet. He has never visited the Great Wall. 表示过去发生动作持续到现在，常与“since、for”连 用。
13、He who seize the right moment, is the right man.谁把握机遇，谁就心想事成。2021/8/142021/8/142021/8/142021/8/148/14/2021 •14、谁要是自己还没有发展培养和教育好，他就不能发展培养和教育别人。2021年8月14日星期六2021/8/142021/8/142021/8/14 •15、一年之计，莫如树谷；十年之计，莫如树木；终身之计，莫如树人。2021年8月2021/8/142021/8/142021/8/148/14/2021 •16、教学的目的是培养学生自己学习，自己研究，用自己的头脑来想，用自己的眼睛看，用自己的手来做这种精神。2021/8/142021/8/14August 14, 2021 •17、儿童是中心，教育的措施便围绕他们而组织起来。2021/8/142021/8/142021/8/142021/8/14
3.现在完成时的一般疑问句
Yes, … have/has.
句型 Have/Has+主语+过去分词+…. No, … haven’t/hasn’t.
Have you finished the work? Yes, I have. / No, I haven’t.
牛津译林版八年级英语下册Unit 1 Grammar公开课课件
since Monday. 4. We __h__a_v_e_n_’_t _s_e_e_n___(not see) each other for years. 5. My parents _h_a_v_e_n__’t_c__o_m__e_(not come) back yet. 6. Our teacher __h_a_s__t_a_u_g_h__t _(teach) us a lot about the
e.g.
1. ---_H__a_v_e__ you ever__m__e_t__ Xiao Caiqi before? (meet）
---No, I haven’t 2.---_H__a_s__ she _b_e_c__o_m__e__very popular recently?（become)
---Yes, She has
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现在完成时
现在完成时的基本结构
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现在完成时的基本结构 （1）肯定句：
I/We/You/They + 助动词have + p.p(过去分词）+其它。 He/She/It + 助动词has + p.p(过去分词）+其它。
e.g. We __h_a_v_e__k_n_o_w_n___ Xiao Caiqi. (know）
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现在完成时用法
一.表示过去发生或已完成的作对现在造 成的影响和结果。
Where is the food? Eddie has just eaten it.
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主菜单
下一页
9、要学生做的事，教职员躬亲共做； 要学生 学的知 识，教 职员躬 亲共学 ；要学 生守的 规则， 教职员 躬亲共 守。2021/7/242021/7/24Saturday, July 24, 2021
e.g.
1. ---_H__a_v_e__ you ever__m__e_t__ Xiao Caiqi before? (meet）
---No, I haven’t 2.---_H__a_s__ she _b_e_c__o_m__e__very popular recently?（become)
---Yes, She has
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主菜单
下一页
现在完成时
现在完成时的基本结构
上一页
主菜单
下一页
现在完成时的基本结构 （1）肯定句：
I/We/You/They + 助动词have + p.p(过去分词）+其它。 He/She/It + 助动词has + p.p(过去分词）+其它。
e.g. We __h_a_v_e__k_n_o_w_n___ Xiao Caiqi. (know）
上一页
主菜单
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现在完成时用法
一.表示过去发生或已完成的作对现在造 成的影响和结果。
Where is the food? Eddie has just eaten it.
上一页
主菜单
下一页
9、要学生做的事，教职员躬亲共做； 要学生 学的知 识，教 职员躬 亲共学 ；要学 生守的 规则， 教职员 躬亲共 守。2021/7/242021/7/24Saturday, July 24, 2021
牛津译林版8B Unit1 Past and Present Grammar课件(共28张PPT)
double the consonant + ed
stop→ stopped
写出下列动词的过去式和过去分词 : repair repaired repaired verb＋ed finish finished finished move moved moved 以e结尾＋d live lived lived
8B Unit 1 Past and Present
Grammar
Learning aims
1. To master the structure and basic usage of present perfect tense(PPT).
（掌握现在完成时的基本结构、用法。）
2. To learn the rules of forming the past participle of verbs.
stop plan stopped stopped planned planned 双写＋ed
study studied studied hurry hurried hurried
（学习动词的过去分词变化规则。）
3. To learn some time expressions usually used in PPT.
（学习常用在现在完成时里的时间表达方式。）
Lead-in Ask and answer
1. How long has Mr. Chen lived in Sunshine Town? He has lived here since he was born. 2. Can Mr. Chen see his old friends as often as before? No. Because most of his old friends have moved away.
牛津译林版 8BU1grammar1课件(共12张PPT)
t2h021i/s6/20dialogue twice.
5
注意：当在肯定陈述句中含有already或just 时，在转换成否定句或疑问句时，要把句中的 already 或just 去掉，在句末加上yet.
● I have seen the film already.
I haven’t seen the film yet.
I _ha_v_e_d_o_ne__ (do) my homework already.
He h_a_s_n_ot_f_in_is_h_e_d___(not finished) his
homework yet.
_H_a_v_eyou ever __b_ee_n_(be) to Beijing?
(learn)a lot about Beijing’s past and present.
2021/6/20
10
It’s a good exhibition and I h_a_v_e_d_e_ci_d_ed
(decide) to see it again .Do you want to go with me ?
recently, Sandy?
S : No, Ih_a_v_e_n_’_t_.What about you?
M : Well, I _h_a_v_e__s_e_e_n____ (see) one. I saw
it at the history museum last week .
S : What is it about?
2. Mr. And Mrs.Li __h_a_v_e__n_o_t_c_o_m__e___(not come)
back yet.
3. John__h_a_s__b_e_e_n_ (be)to the USA a few times.
牛津译林版8B Unit 1 Past and present Grammar (共43张PPT)
4.My brother has drunk a bottle of juice.（划线部分提问 ）
5.Jim have lived in Beijing for one year. （划线部分提问 ）
现在完成时
现在完成时的时间状语
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1. You have already finished the homework. 2. I have stayed at home for 20 days. 3. Many people have seen the film many times. 4. He/She has just cleaned the blackboard. 5.I have lived in Huai’an since I was born. 6.I have taught English since I came to this school. 7.You have learned English for 6 years.
（我刚才丢了钢笔）
She_h_a_s__ just _b_o_u_g_ht(buy) a book. She__b_o_u_g_h_t (buy) a book just now.
（她刚才买了本书）
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Tips 用表示到说话时为止的时间状语, 如 : just, before, up to now, the past/last few years等。
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Tips
★just, recently是完成时的时间状语， just now 有a moment ago 之意，是 一般过去时的时间状语。
I____lo_s_t(lose)my pen just now. I__ha_v_e__ just _l_o_st__(lose)my pen .
5.Jim have lived in Beijing for one year. （划线部分提问 ）
现在完成时
现在完成时的时间状语
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主菜单
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1. You have already finished the homework. 2. I have stayed at home for 20 days. 3. Many people have seen the film many times. 4. He/She has just cleaned the blackboard. 5.I have lived in Huai’an since I was born. 6.I have taught English since I came to this school. 7.You have learned English for 6 years.
（我刚才丢了钢笔）
She_h_a_s__ just _b_o_u_g_ht(buy) a book. She__b_o_u_g_h_t (buy) a book just now.
（她刚才买了本书）
上一页
下一页
Tips 用表示到说话时为止的时间状语, 如 : just, before, up to now, the past/last few years等。
上一页
下一页
Tips
★just, recently是完成时的时间状语， just now 有a moment ago 之意，是 一般过去时的时间状语。
I____lo_s_t(lose)my pen just now. I__ha_v_e__ just _l_o_st__(lose)my pen .
最新牛津译林版英语8B Unit1 Grammar课件(共37张PPT)
2.（“travel”这个动作发生在过去并跟现在 有联系—我已经认识了中国的很多地方。）
I have already visited Beijing twice. 我参观过北京两次。
3. （“参观”这个动作到现在为止发生了两次。) （谈论到现在为止，动作发生了多少次。)
现在完成时的含义(共三点）
（1）现在完成时谈论发生在过去并 持续到现在,也许还会持续下去的动 作或状态。可以和表示延续的时间状 语连用。 如for、since 等引导的时间 状语。（注意：句中谓语动词要用延 续性动词）
Unit1 Past and present
Grammar
Present perfect tense
现在完成时
完成句子：
1. 近几年无锡发生了巨大变化。（3种）
Wuxi has changed a lot over the years. Great changes have tБайду номын сангаасken place in Wuxi over the years. There have been great changes in Wuxi over the years.
（1）肯定句：
（2）否定句 I/We/You/They+have not +p.p(过去 分词）+其它.
e.g. They haven’t _____________ finished their homework yet. (finish） He _____________ hasn’t finished his homework yet. (finish) He/She/It +has not +p.p(过去分词） +其它.
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I have been a teacher since I left my college(大学). I have been a teacher for 12 years.
3.表示某事直到现在发生了多少次.
I have watched the TV show many times.
现在完成时结构： have / has + v 过去分词 Discussion: What new structure can you find in these sentences?
stop a taxi stopped a taxi
1.He has opened the door. 2.The students hБайду номын сангаасven’t changed a lot. 3.Have they carried the heavy boxes? 4.Has she stopped a taxi?
have has
opened not the
door.
have not = haven’t has not = hasn’t
Let’s practise
the students not change a lot
The students haven’t changed a lot.
We ask and answer questions using the present perfect tense like this:
过去分词（P.P.）
Most verbs
+ed
open→
opened
Verbs ending in -e
change →
+d
changed
Verbs ending in a consonant + y
-y +ied
carry → carried
Short verbs ending in a vowel + a consonant
I h__a__v_e___w__a_t__c_h__e_d_ the TV show many times.
We make negative statements in the present perfect tense like this:
I / You/ We / They He / She / It
I have written some words on the Bb already. ——————————
I have been a teacher since I left my college(大学). ————————
I have been a teacher for 12 years. ———————
8B Unit 1 Past and present
Grammar The Present Perfect Tense
现在完成时
The Present Perfect Tense 现在完成时
• He has lived there since he was born.
• The government has turned part of the town centre into a new park.
hit put meet make sell give write think
• Because most of his old friends have moved away.
I wrote some words on the blackboard just now. There are some words on the blackboard now.
I have written some words on the blackboard already.
double the stop → consonant +ed stopped
见课本第122.123页。
No change
come→come hurt → hurt
Change the vowel hold → held win → won
Change the consonant
lend→lent build → built
Have I / you/ we / they opened the
Has
he / she / it
door?
I / you/ we / they Yes, he / she / it
have. has.
I / you/ we / they No, he / she / it
haven’t. hasn’t.
(现在完成时)
wrote some words on the Bb
The words are on the Bb
Past
Now
1.表示过去发生的动作对现在造成的影响或结果。
I became a teacher. Past
I am still a teacher.
Now
Future
2.表示过去已经开始，持续到现在或将来的动作或状态。
Change the vowel(s) catch →caught keep→ and the consonant(s) kept forget→ forgotten
tell→ told
Others
be→ been have→ had fall→ fallen fly→ flown draw→ drawn see→ seen
Let’s practise A: Have they …? B: Yes, they have. / No, they haven’t.
carry the heavy boxes carried the heavy boxes
Let’s practise
A: Has she …? B: Yes, she has. / No, she hasn’t.
The following shows more examples of the past participles of some verbs.
visit repair live move try study fit plan
visited repaired lived moved tried studied fitted planned