It is + 时间段 + since句型复习 ppt课件
Itbe+时间段+since句型课件 高三二轮复习语法专题
9、I’m sorry you’ve been waiting so long, but it’ll still be some time _A___ Brian get back.
It is yesterday afternoon that he arrived.
It is that day that he understood the love of his parents.
三、高考案例: 1、It is almost five years__si_n_c_e we saw each other last time
It was already evening when he came back. It will be midday when they get home It was 1997 when Hongkong returned to China.
(2)、when在这里引导状语从句,意思 是“当----时候”。
It is two days since she was ill.
2、“It be +一段时间+before从句
(1)、时态的运用: ①主句中若be为一般将来时, 从句用一般现 在时; It will be many years before we meet again. ②若be为一般过去时,则从句用一般过去时。 It was a long time before I got to sleep again.
since的用法课件
目录
• since的基本含义 • since的常见用法 • since的特殊用法 • since的常见错误用法 • since的练习与巩固
01
since的基本含义
翻译与解释
01
自从
since可以翻译为“自从”,表示某个时间点或时 间段之前的时间。
02
因为
since还可以翻译为“因为”,表示原因或理由。
与过去完成时连用
总结词
表示某个动作或状态在过去的某个时间点之前已经完成,强调过去的某个时间点之前的 状态。
详细描述
当与过去完成时连用时,since表示某个动作或状态在过去的某个时间点之前已经完成, 并且强调那个时间点之前的状态。这种用法通常与过去完成时态(had done)等连用, 表示在过去的某个时间点之前已经完成了某个动作或状态。例如:“He had left the
since的特殊用法
与完成时态连用
总结词
表示某个动作或状态从过去某时开始一 直持续到现在,强调现在的结果或影响 。
VS
详细描述
当与完成时态连用时,since表示某个动作 或状态从过去某时开始一直持续到现在, 并且强调现在的结果或影响。这种用法通 常与现在完成时态(have done)或过去 完成时态(had done)等连用,表示动作 或状态已经完成,并且持续了一段时间。 例如:“I have lived in this city since 2010.”(我从2010年开始就住在这个城 市。)
填空题练习
填空题1
I _______ (not see) her since last week.
填空题3
He _______ (not live) here since he left the city.
It is +时间+since when before
It+be+时间+before/since/when/that句型辨析I since1. 翻译“It is/has been+时间段+since从句”(1)当从句谓语动词为非延续性动词时,表示这段时间从该动作开始时算起,即“自从做……以来已经多久了”。
(2)当从句谓语动词为延续性动词时,表示这段时间从动作结束时算起,即“自从不做……以来已经多久了”。
It is two years since he joined the army.他参军两年了。
(从参军那一刻算起)It is two years since he was a soldier.他退役两年了。
(从他不再是士兵算起)2. 时态主句为现在时(一般或完成),从句都是一般过去时。
主句为过去式(一般性都用was就够了),从句都是过去完成时II before1. 翻译It was/will be+时间段+before...过多长时间将发生某动作或事情;或过了多久发生了某事或动作。
It was three years before he finished the work.他花了三年才完成这项工作.It will be three years before he finishes the work.他得花三年才能完成这项工作. 2.It won't be/take long before...不久就会…It won't be long before he finishes the work.他不久就会完成这项工作.2. 时态主句为过去式(一般性都用was就够了),从句用过去时主句为将来时,从句用现在时(用一般现在时表示将来)III when1. 翻译It is + 时间点+ when…当发生什么的时候是什么时候…It was one o’clock when he came in .2. 时态主句是什么时态,从句就是什么时态3.常考与强调句的区别It was five o'clock when we arrived at the small mountain village.It was at five o'clock that we arrived at the small mountain village.强调句去掉it、be和that,余下的部分仍是一个完整的句子。
it+be+时间+before,since,when从句 课件
1. It is / has been + 一段时间 + since从句
如:It is 17 years since Hongkong returned to China.
香港回归已经有17年了。
在“It’s +时间段+ since从句” 句型中,如果since从句的谓语动 词是瞬间性动词,表示肯定意义; 如果since从句的谓语动词是延续
了多长时间之后才……” 例: It was long before they found their son. 过了很久他们才找到他们的儿子。
② 若主句是否定形式,翻译成 “没过多久就……” 例:
It was not long before the couple met again. 没过多久这对夫妻就见面了。
分析:since从句中的系表结构表示 一种状态,这种状态是延续性的, 表示否定意义,译为“不是,不当”
注:时间的计算一律从since从句 的动作完成或状态结束时算起。
It is/has been two days since she fell ill. (她生病两天了) It is/has been two days since she was ill.
5. It was midnight _w__h_e_n___ he arrived home. 6. It was at midnight __t_h_a_t___ he
7a.rIrtivweadshnoomt eu.ntil midnight _t_h_a_t___ he arrived home.
强化习题:
ቤተ መጻሕፍቲ ባይዱ
鉴别 It is ... 句型
鉴别It is ... 句型“ It is …… ”句型可分为四类:第一类即“ It is + 一段时间+since ”。
这种类型又可分两种:1. “ It is + 一段时间+since+ 主语+ 终止性谓语动词”。
如果since 从句中的谓语动词为终止性动词,则表示自从这个动作发生以来到现在有多长时间了。
如:It is three years since he joined the army. 他参军已经三年了。
It is ten years since Tom came to China. 汤姆来中国已经十年了。
上两句中join ,come 都是终止性动词,所以表示的都是动作发生以来有多长时间了。
2. “ It is + 一段时间+since+ 主语+ 延续性谓语动词”。
since 从句中的谓语如果是延续性动词或表状态的系动词,则表示这个动作或状态结束以来有多长时间了。
如:It is two months since he worked here. 他两个月前在这儿工作。
= He worked here two months ago.It is five years since she wasn’t a teacher. 她已退休五年了。
第二类即“ It is + 一段时间+before ”。
这类句型可以是肯定句,也可以是否定句,前后谓语动词的时态是相对应的。
如:It was a long time before he came back. 过了很久他才回来。
It will be soon before he comes back. 很快他就会回来了这类句型一般译成“过……才……”或“不久……就……”,需注意的是前后的时态要相互照应。
第三类即“ It is + 时间点+when ”。
第四类即“ It is + 介词+ 时间+that ”。
不难看出最后一类是强调句型,第三类是定语从句,对于这两类句型,同学们该怎样区别呢?其实如果你明白了什么是强调句型,那么就不难判断了。
since的用法.ppt
在绝大多数时候,句子的形式及其传达 的意义是统一的。然而,无论中文还是 英文,都会出现由于表达的习惯,语气 的不同以及修辞等目的,用否定句式表 达肯定含义,用肯定形式表达否定含义 的言不由衷的情况
肯定的句式表达着否定的含义
anything but 决不 (=not…at all) Your answer is anything but perfect. 你的答复一点儿也不完美。 注:该结构也可如下例一般,表示“除~外,任何都…”之意: I’ll give you anything but that. 除了那个之外,我什么都可以给
肯定的句式表达着否定的含义
It is half a month since he was a League member. 他退团半个月了。 It’s been quite some time since I was in London. 我离开伦敦已很长时间了。
比较:He has written to me frequently since I was ill.
自从我病愈以来,他经常给我写信。 (从句谓语为状态动词)
He has written to me frequently since I fell ill.
自从我生病以来,他就经常给我写信。 (从句谓语为终止性动词)
三、若since引导的状语从句的谓语为持续性动词的现在完成时, 则表示动作和状态延续到现在(说话时刻),其表示的时间的起 点应从动作发生之时算起。如:
你。 ■far from 完全不 The show was far from being a success. 那次表演并不成功。 ■fail to 无法~ (=do not, cannot) Even Big Ben failed to strike correctly one day when its chiming
初中英语时间状语从句PPT课件
#
第十八页,共21页。
• I have worked in this school since I graduated from Beijing University.
• It is ten years since she began to learn English.
finished her homework.
• (她一直到写完作业才睡觉。)
#
第二十一页,共21页。
You can’t do your homework while you’re watching TV.
#
第九页,共21页。
as
• 由as引导的时间状语从句,[表示时间]当..., 的时候 , 一边...一边, 随 着。
• 如: • 1. She sang as she worked. • 她一边工作一边唱歌。 • 2. I saw him as he was getting off the bus. • 正当他下公共汽车时, 我看见了他。
#
第十四页,共21页。
(三)、另外,when和while的区别还在于: while引导的时间状语从句多用进行时态, 而when引导的时间状语从句多用一般时 态.
例如:1、While they were talking ,the bell rang.正在他们谈话的时候,上课铃响 了.
2、I was doing my homework when my
#
第十二页,共21页。
when、while
(一)、when,while都有“当……时候”的意思. when既可表示某一点时间,也可以表示某一段时间 .在when引导 的时间状语从句中,其谓语动词可以是延续性的,也可以是非延续 性的,可与主句中的谓语动词同时发生,也可在其后发生. 例如:1、I was just reading a book when she came into my room.她走进我房间时,我正在看书.
It is + 时间段 + since句型复习.ppt
3. It was long before she came back.
4. It will be long before we meet again.
5. It will be five years before he meets you again.
• 9. It ______ long before we _______ the result of the experiment. (上海春)
• A. will not be; will know • B. is; will know • C. will not be; know
D. is; know
• 4. It was six days ago _________ I spoke to you about this matter.
• A. that B. unless C. since D. until
• 5. It was ten _________ he stood at aunt’s door and rang the bell.
• 2、Our destiny offers not only the cup of despair, but the chalice of opportunity. (Richard Nixon, American President )命运给予我们的不是失望之酒,而是机会之杯。二〇二〇年八月五日2020年8月5 日星期三
• A. takes charge of B. took charge of • C. is in charge of D. was in charge of
It is +时间+since when before
It+be+时间+before/since/when/that句型辨析I since1. 翻译“It is/has been+时间段+since从句"(1)当从句谓语动词为非延续性动词时,表示这段时间从该动作开始时算起,即“自从做……以来已经多久了”.(2)当从句谓语动词为延续性动词时,表示这段时间从动作结束时算起,即“自从不做……以来已经多久了"。
It is two years since he joined the army.他参军两年了。
(从参军那一刻算起)It is two years since he was a soldier.他退役两年了。
(从他不再是士兵算起)2. 时态主句为现在时(一般或完成),从句都是一般过去时。
主句为过去式(一般性都用was就够了),从句都是过去完成时II before1. 翻译It was/will be+时间段+before..。
过多长时间将发生某动作或事情;或过了多久发生了某事或动作.It was three years before he finished the work。
他花了三年才完成这项工作.It will be three years before he finishes the work。
他得花三年才能完成这项工作. 2。
It won't be/take long before。
.。
不久就会…It won’t be long before he finishes the work。
他不久就会完成这项工作.2。
时态主句为过去式(一般性都用was就够了),从句用过去时主句为将来时,从句用现在时(用一般现在时表示将来)III when1. 翻译It is + 时间点+ when…当发生什么的时候是什么时候…It was one o’clock when he came in 。
2. 时态主句是什么时态,从句就是什么时态3。
It is + 时间段 + since句型复习.ppt
• 10、Life is measured by thought and action, not by time. ——Lubbock 衡量生命的尺度是思想和行为,而不是时间。8.5.20208.5.202011:0311:0311:03:1011:03:10
• 11、To make a lasting marriage we have to overcome self-centeredness.要使婚姻长久,就需克服自我中心意识。Wednesday, August 5, 2020August 20Wednesday, August 5, 20208/5/2020
• 4. It was six days ago _________ I spoke to you about this matter.
• A. that B. unless C. since D. until
• 5. It was ten _________ he stood at aunt’s door and rang the bell.
• •
THE END 8、For man is man and master of his fate.----Tennyson人就是人,是自己命运的主人11:0311:03:108.5.2020Wednesday, August 5, 2020
9、When success comes in the door, it seems, love often goes out the window.-----Joyce Brothers成功来到门前时,爱情往往就走出了窗外。 11:038.5.202011:038.5.202011:0311:03:108.5.202011:038.5.2020
It-is-+-时间段-+-since句型复习(必修一-一单元)
• 5. It was ten _________ he stood at aunt’s door and rang the bell. • A. when B. until来自C. since D. that
• 6. I think it won’t be long _________ they understand each other. • A. when B. until C. since D. before
• 他哥哥入伍三年了。 • 他哥哥退伍三年了. • 他病了两星期了。 • 他病愈两星期了。
• 他们结婚到现在已经十年了。 • 他到这儿已经二十分钟了。
• 练一练:
•
1. He went abroad in 1997 and has never come back. It is eleven years since he ____the company at home.
• 7. It was evening ____ we reached the little town of Winchester. (天津卷) • A. that B. until C. since D. before
• 8. ---Did Jack come back early last night? • ---Yes. It was not yet eight o’clock ________ he arrived
•
• 3. It was about midnight _________ we found the lost child, crying under a tree. • A. that B. until C. when D. where
• 4. It was six days ago _________ I spoke to you about this matter. • A. that B. unless C. since D. until
it is since用法归纳
it is since用法归纳1. 简介在英语中,“it is since” 是一种常见的句型结构,用来表达某个事件或行为自从某个特定时间点之后一直持续发生或存在。
这个句型可以用来描述过去的经历、习惯、状态等,同时也可以用来表达对现在的影响和结果。
2. 语法结构“it is since” 句型的基本结构为:It is + 时间段/时间点 + since + 过去时态动词短语其中,时间段/时间点可以是具体的日期、年份、季节等。
3. 用法归纳下面是“it is since” 句型的几种常见用法:3.1 表达过去经历使用“it is since” 句型可以描述一个行动或事件自从过去某个时间点开始一直持续发生或存在。
例子: - It has been a year since I started learning English. - It’s been a long time since we last saw each other.3.2 表达习惯这种句型还可以用来表达过去某个时间点开始养成的习惯,而这个习惯一直延续到现在。
例子: - It’s been five years since I quit smoking. - It has been a month since he started going to the gym regularly.3.3 描述状态使用“it is since” 句型可以描述一个状态或情况自从某个时间点开始一直持续到现在。
例子: - It’s been raining since this morning. - It has been hot and humid since the summer started.3.4 表达影响和结果“it is since” 句型还可以用来表达某个事件或行为对现在的影响和结果。
例子: - It’s been a great experience since I joined this company. - It has been a challenging journey since I started my own business.4. 注意事项在使用“it is since” 句型时,需要注意以下几点:4.1 主语一致性句子的主语通常是“it”,而谓语动词的形式则取决于时间段/时间点之后的动作或状态。
it's since的用法
it's since的用法摘要:1.it"s since 的含义2.it"s since 的语法结构3.it"s since 的用法举例4.it"s since 的注意事项正文:“it"s since”是英语中常用的时间状语从句,用于表示自从某个时间点以来已经过去的时间。
它的基本结构是“it is/was + 时间段+ since + 从句”,其中,“it is/was”表示现在/过去的时间,而“since”引导的时间状语从句则表示自从某个时间点以来的时间段。
例如,我们可以用“it"s since”来描述自从某个事件发生以来的时间:It is/was five years since we last met.(自从我们上次见面以来已经五年了。
)在使用“it"s since”时,有一些注意事项:首先,“it"s since”引导的时间状语从句通常使用一般过去时,而不是现在完成时。
这是因为“it"s since”表示的是一个从过去某个时间点开始的时间段,而不是一个持续到现在的时间段。
其次,“it"s since”只能用于完成时态,不能用于进行时态。
这是因为“it"s since”表示的是一个已经过去的时间段,而不是一个正在进行的时间段。
最后,在使用“it"s since”时,我们需要注意时间状语从句的时态和语态。
一般来说,时间状语从句的时态应该与主句的时态保持一致,而语态则应该根据实际情况进行选择。
总的来说,“it"s since”是一个非常实用的时间状语从句,它可以帮助我们清晰地表达自从某个时间点以来的时间。
Since的用法-课件PPT
A. walks
Hale Waihona Puke B. walkedC. has walked
D. had walked
3. So far this year we _______ a fall in house prices by between 5 and 10 percent. (2008福
建)
A. saw
B. see
C. had seen D. have seen
你退团有多久了?
10
Since之后的时间为点时间
从句谓语动词 是延续性动词
时间状语
Since 从句
从句谓语动词 是结束性动词
原因状语
一般时态 完成时态
从谓语动词动作结束的时间起
All has changed since he was at home.
自从他离开家以后,这里的一切都变了。
从谓语动词动作开始的时间起
5. Danny _________ hard for long to realize his dream and now he is popular. (2007福建)
A. works
B. is working C. has worked
D. had worked
14
DCDDC
15
12
BCABACDC
13
1. — I’m sure Andrew will win the first prize in the final.
— I think so. He ________ for it for months. (2008江苏)
A. is preparing
B. was preparing
it was +时间+since句型用法和强调句的用法
it was +时间+since句型用法和强调句的用法"It was + 时间 + since" 结构是一个用于强调某事发生或持续的时间已经过去的句型。
通常用于强调时间的流逝,表示某个事件或状态一直延续到目前为止。
这个结构的一般形式是:It was+时间(表示过去的一段时间)+since+事件或状态的发生或开始It was+时间(表示过去的一段时间)+since+事件或状态的发生或开始以下是一些例句:1. It was three years since we last met.•自从我们上次见面已经过去了三年。
2. It was a month since she started her new job.•她开始新工作已经过去了一个月。
3. It was five days since the rain had stopped.•自从雨停已经过去了五天。
这个结构强调了从过去某一点开始的一段时间,使得读者或听众更加关注这段时间的长度和事件的发生。
在这个结构中,“since”引导了一个具体的时间点或事件,而“was”引导了一个描述时间间隔的短语。
强调句的用法:强调句用于强调句子中的某个成分,以使其在语法结构中更为突出。
在英语中,可以通过强调句型 "It is/was ... that" 来实现。
例如,使用强调句强调 "It was three years since we last met." 中的时间部分:• Original Sentence: It was three years since we last met.• Emphasized Sentence: It was three years since we last met that we saw each other.在强调句中,被强调的部分用 "that" 引导,而强调的语音重点则放在被强调部分上。
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It is + 时间段 + since句型复习
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• 练一练:
• 1. He went abroad in 1997 and has never come back. It is eleven years since he ____the company at home.
• A. takes charge of B. took charge of • C. is in charge of D. was in charge of
• 6. I think it won’t be long _________ they understand each other.
• A. when B. until C. since D. before
It is + 时间段 + since句型复习
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• 7. It was evening ____ we reached the little town of Winchester. (天津卷)
• A. that B. until C. since D. before
• 8. ---Did Jack come back early last night?
• ---Yes. It was not yet eight o’clock ________ he arrived home. (福建卷)
It is + 时间段 + since… “自从...以来有一段时间了”。
It is + 时间点 + when… “当……的时候时间是……”。
It is + 时间段 + before… “在……之前有一段时间”。
It is + 时间段 + since句型复习
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1. It was past one o’clock when he came in.
• 他们结婚到现在已经十年了。 • 他到这儿已经二十分钟了。 •。
It is + 时间段 + since句型复习
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1. 不久后我们就能做好旅行的准备工作了。 2. 三年以后我们才能再次相见。 3. 一个小时以后他才完成了工作。 4. 他完成工作(到现在)已经一个小时了。 5. 他在这儿待了约有十分钟。
It is + 时间段 + since句型复习
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• 3. It was about midnight _________ we found the lost child, crying under a tree.
• A. that B. until C. when D. where
• 4. It was six days ago _________ I spoke to you about this matter.
• A. before
B. when C. that
It is + 时间段 + since句型复习
D. until
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6. It is / has been four days since I caught a cold.
7. It is / has been two weeks since we
met last. It is + 时间段 + since句型复习
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• 他哥哥入伍三年了。 • 他哥哥退伍三年了.
• 他病了两星期了。 • 他病愈两星期了。
• A. that B. unless C. since D. + since句型复习
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• 5. It was ten _________ he stood at aunt’s door and rang the bell.
• A. when B. until C. since D. that
2. It won’t be long before they understand each other.
3. It was long before she came back.
4. It will be long before we meet again.
5. It will be five years before he meets you again.
•
• 2.They asked me to have a drink with them.I said it was nine years since I______a good drink.
• A. enjoyed
B. was enjoying
• C. had enjoyed D. had been enjoying