初中英语时间状语从句ppt课件
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(时间状语从句)-PPT
大家好
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【典例2】Henry will give us a report as soon as he ______.
A. arrives
B. arrived
C. is arriving
D. will arrive
解析
考查时间状语从句连接词。句意：亨利一回来就给 我们作报告。as soon as为时间状语引导词，遵循 “主将从现”原则，故答案选A。
大家好
16
语法加油站
总结本单元的语法知识，你掌握了吗
3. as 1）表示“当……时”、“和……同时”。从句中多用表示动作 的动词，而不用be动词或表示感觉、理解、知道这类动词。 She dropped the glass as she stood up. 2）用于平行的动作中，表示“一边……一边……"。常指一 个主语同时进行两个动作。
as: 1. She came up as I was cooking.（同时）
大家好
10
易错点3 when/while/as的区别 when:
1. When we were at school, we went to the library every day. （在一段时间内） 2. Sorry，I was out when you called me.（call为短暂性动词） 3. When I got to the airport，she had left.（got to后发生）
He sang as he worked. 3）用于平行发展的结构中，表示"随着……"。 As it grew darker it became colder. As he grew older he became more confident.
初中英语状语从句课件(共68张ppt)
They had not been married four months before they were divorced. 他们结婚还不到四个 月就离婚了。
After you think it over, please let me know what you decide.你仔细考虑过以后，告诉我你是 怎样决定的。
外星人买纪念品时，那女孩给警察打了电话。(表示主句，从句
的动作同时发生，while后引导的状语从句的动词必须是延续动词不能
是点动词，因为它表示较长时间)
mother was worried because little alice was ill, especially as (when/ while) father was away.
我到那里时，正在下大雨。 ( 动作同时发生，when
可换为as, 但不能换为while，因为get是点动词.)
When I had read the article, he called me.
我看完这篇文章之后，她给我打了电话。( 从句动作
发生在主句之前，注意时态表达，只能用when )
When I got to the cinema, the film had begun.
when
1、还可以表示从句动词的动作在主几句动词的动作"
之前 "或"之后"发生。
2、when=and then; at that moment (正在那个时候)
while 1、用于时间较长时
2、 强调两个动作同时进行，并表示对比时
有时这三个连词可以互换，有时不可以。
It was raining hard when (as) I got there.
After you think it over, please let me know what you decide.你仔细考虑过以后，告诉我你是 怎样决定的。
外星人买纪念品时，那女孩给警察打了电话。(表示主句，从句
的动作同时发生，while后引导的状语从句的动词必须是延续动词不能
是点动词，因为它表示较长时间)
mother was worried because little alice was ill, especially as (when/ while) father was away.
我到那里时，正在下大雨。 ( 动作同时发生，when
可换为as, 但不能换为while，因为get是点动词.)
When I had read the article, he called me.
我看完这篇文章之后，她给我打了电话。( 从句动作
发生在主句之前，注意时态表达，只能用when )
When I got to the cinema, the film had begun.
when
1、还可以表示从句动词的动作在主几句动词的动作"
之前 "或"之后"发生。
2、when=and then; at that moment (正在那个时候)
while 1、用于时间较长时
2、 强调两个动作同时进行，并表示对比时
有时这三个连词可以互换，有时不可以。
It was raining hard when (as) I got there.
状语从句(29张PPT)初中英语专项复习课件(2)
时间状语从句的分类
Mary cut her finger when she was making a kite. Once you see her, you’ll never forget her. As she was reading the newspaper, grandma fell asleep. Work while you work. Play while you play.
时间状语从句的分类
2. 表示先后，即主句的谓语动作发生在从句之前或之 后。包括：after（在……之后），before（在……之 前）。
时间状语从句的分类
After we heard the news, we were all excited. We had learned English for three years before he went to London.
时间状语从句的分类
3. 表示持续或瞬间性。包括：since（自从），ever since（自从），until（直到……才/为止)，till （直 到……才/为止)。
时间状语从句的分类
It’s just a week since we arrived here. Ten years has passed since we left our school. He waited for his father until (till) it was twelve o’clock.
易错点3 when/while/as的区别 as:
1. She came up as I was cooking.（同时） 2. The runners started as the gun went off.（几乎同时）
状语从句(43张PPT)初中英语专项复习课件
知识点 2 状语从句的连接词
(3) 强调句型：It is/was not until ... that ...
It was not until the professor came that we began the experiment. 直到教授来了，我们才开始做实验。 易错点：（1）till不可以置于句稿首定，PP而T until可以。 Until you told me I had no idea o稿新f定，itP上.P千T，款海模量板素选材择持总续有更一 直到你告诉我，我才知道这件事款适。合你
It’s three years since he joined the army.(自从......多久了......)
自从他参军已经三年了。
稿定PPT
稿定PPT，海量素材持续更
It's two years since we arrived新h，e上re千. 款我模们板选到择这总有儿一两年了。 款适合你
连词
常用句式
before It will be＋一段时间＋before ... 过……时间才……
since
It will not be/was not long＋before ... 不久就会/没多久就…… It was＋时间段＋befo稿稿r定e定P.P.P.TP，过T海了量素…材…持续(时更 间)才…… It is/has been＋一段时新间，上＋千s款in模c板e选..择. 总(从有一句用一般过去时)
as soon as / no sooner … than / hardly … when / the moment / the minute /（一…就…) since （自从…以来）
知识点2：状语从句的连接词 No. 1 时间状语从句 1．when, while, as 引导的时间状语从句
初中英语语法状语从句课件(共45张PPT)
• 3）than 意为“比……更……”； • The boy is taller_than_his_father. (比他的父
亲还高)
4）比较状语从句通常与倍数表达法结合起来运用。
①A +is…times +as+ adj.原级+as +B ②A +is…times+ adj.比较级+than +B ③A +is…times+ the size/length/height/width/depth +of + B ④The size/length/height/width/depth… +of+ A+ is…times of +B
where引导 A句+where+B句 在B句…地方, A句… 在环境污染严重的地方，许多珍稀物种处于灭 绝的边缘。
Many rare animals are on the verge of extinction where environmental pollution is serious.
三、条件状语从句 1. If引导的条件句 2. Unless 3. Once 4. As long as
• 这个数据在下降到1990年的20%之前，它先上 升到1980年的80%
• Before the figure jumped to 20% in 1990, it increased to 80% in 1980.
• 5. A句+since+B句/时间短语 【自从B句…,A句就…】
自从手机发明以来，人们的生活发生了巨大变化。
五、目的状语从句
A句+in order that+B句 A句+so that+B句 【A句…是为了B句…】
初中英语语法状语从句(共16张PPT)
1）though, although, as, while
A. though和although不能与but连用
B. as引导让步状语从句，意思与 although/though相同，但是as通常放 在句首，且主谓要倒装，as前面的词可 以是形容词、副词，也可以是动词、名 词。
1)Rich as he is, he is not happy.
You should try to get a good night’ sleep ________ much work you have to do.
Hale Waihona Puke A. howeverB. no matter
C. although D. whatever
解析：答案为A。本题考察让步状语从句的 用法
______I accept that he is not perfect, I do actually like the person.
= Although he is a child, he knows what to do at this time.
C. while引导让步状语从句，只能放在句首， 意思与although/though相同。
While I feel sympathetic, I really can’t do anything to help them. While he may be right, we don’t agree him to do it.
where you have any questions.
3. 原因（because, as, since, now that, seeing that, considering that; when = since, considering that 既然；考 虑到; 介词短语表原因– because of, thanks to, due to, owing to; for ）
初中英语语法课件 时间状语从句
It will be four days before they come back. 他们要过四天才能回来。 Einstein almost knocked me down before he saw me. 爱因斯坦几乎把我撞倒才看到我。 My father had left for Canada just before the letter arrived.我父亲恰好在信到之前去加拿大了。
由till或until 引导的时间状语 从句
till和until一般情况下两者可以互换，但是在强调句型中多 用until。 如果主句中的谓语动词是瞬时动词时，必须用否定形式； 如果主句中的谓语动词是延续性动词时，用肯定或否定形式 都可以，但表达的意思不同。 till不可以用在句首，而until可以放在句首。
由before和 after引导的时 间状语从句
一般情况下，before和after引导的时间状语从句的主句用 将来时，从句用现在时。 before引导的主句谓语用过去完成时，则从句动词多用一般 过去时。 After表示主句动作发生在从句动作之后。 主句和从句的动作的时间关系正好与before引导的从句相反。
由when引导的 时间状语从句
when意为“当......时”，引导时间状语从句，表示 主句的动作和从句的动作同时或先后发生。 Faith is the bird that feels the light when the dawn is still dark. 信念是黎明前的黑夜里能感受到光明的鸟儿。 When I was wandering in the street, I met her. 我在街上徘徊的时候遇到了她。
They had not been arried four months before they were divorced. 他们结婚还不到四个月就离婚了。 After we had finished the work, we went home. 完成工作之后，我们回家了。（从句用过去完成时，主句用一般 过去时）
初中英语时间状语从句PPT讲稿
While my wife was reading the newspaper, I was watching TV.
While Jim was mending his bike, Lin Tao came to see him.
While they were talking, the bell rang.
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。如：study, work, stand, lie, know, walk, keep, have, wait, watch, sing, read, sleep, live, stay等。
终止性动词
也称非延续性动词、瞬间动词或点动词，表 示不能延续的动作,这种动作发生后立即结束。 如:open, die, close, begin, finish, come, go, move, borrow, lend, buy,arrive，reach，fall， give，join，marry等。
表示某一点时间.在while引导的时间状语 从句中,其谓语动词只能是延续性的,而且 也只能与主句中的谓语动词同时发生或 存在.
• 例如：1、While Jim was mending his
bike,Lin Tao came to see him.正当吉姆 修自行车时,林涛来看他.
• 2、You can’t do your homework while
You can’t do your homework while you’re watching TV.
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。 • 3. As a child, he lived in America. • 他小时候住在美国。 • 4. You will grow wiser as you grow older. • 随着你年令的增长, 你会变得更聪明。
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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。如：study, work, stand, lie, know, walk, keep, have, wait, watch, sing, read, sleep, live, stay 等。
#
终止性动词
也称非延续性动词、瞬间动词或点动词， 表示不能延续的动作,这种动作发生后立即 结束。 如:open, die, close, begin, finish, come, go, move, borrow, lend, buy,arrive， reach，fall，give，join，marry等。
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when
• 由“when” 引导的从句：表示主句的动作和 从句的动作同时发生，或从句的动作发生在主 句动作之前。其谓语动词可以是延续性的,也可 以是非延续性的,
例：1. I was going out when a visitor came. (我正要出门，有客人来访。)(动词同时发生。)
2. I shall tell her the good news when she comes.
4.原因状语从句 5.结果状语从句 6.目的状语从句
7.让步状语从句 8.方式状语从句 9.比较状语从句
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时间状语从句
定义：在句子中起时间状语作用的句 子称为时间状语从句，可放在句首或
者句尾。
时间状语从句
引导时间状语从句的普通类从属连词有 when（当……时）， while（在……期间）， as（当……，一边……一边……）， before（在……之前）， after（在……之后）， since（从……以来）， till/until（直到）， not...until (直到...才） whenever（无论何时）， as soon as（一……就）等。
You can’t do your homework while you’re watching TV.
#
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。 • 3. As a child, he lived in America. • 他小时候住在美国。 • 4. You will grow wiser as you grow older. • 随着你年令的增长, 你会变得更聪明。
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• （二）、while只能表示某一段时间,不能 表示某一点时间.在while引导的时间状语 从句中,其谓语动词只能是延续性的,而且 也只能与主句中的谓语动词同时发生或 存在.
• 例如：1、While Jim was mending his bike,Lin Tao came to see him.正当吉姆 修自行车时,林涛来看他.
3.When he was a child ，he was always trying out new ideas.
#
while
while 引导的从句：表示“当……过程中”，强 调某一段时间内主句和从句中谓语动词所表示的 动作在同一时期发生。由于while从句表示一个 持续的行为，所以从句中要用持续性动词，并且 持续性动词常用进行时态。 • 例： • Keep an eye on my little sister while I am away. • (我不在时，请照看一下我的小妹妹。) • While we were watching TV, Jim came in. • Strike while the iron is hot. 趁热打铁。
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While my wife was reading the newspaper, I was watching TV.
While Jim was mending his bike, Lin Tao came to see him.
While they were talking, the bell rang.
#
• As the time went on,the weather got worse. • The atmosphere gets thinner and thinner as
the height increases. • 3. As years go by, • China is getting stronger and richer.
#
• 猜一猜：As a boy,he likes to playing basketball.
• I like playing basketball,while he likes playing the）、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. 2、Were you writing when the teacher came in?老师进 来的时候,你在写信吗? 3、When he was a child he was always trying out new ideas.他小时候就常常试验一些新的设想.
状语从句（adverbial clause）
一、定义
状语从句即从属连词引导的从句在句子中作 状语，修饰谓语动词，用来表示时间、地点、 条件、原因、结果、目的、让步、方式、比 较等。状语从句可以置于句尾或句首，置于 句首时常用逗号与主句隔开。
二、类型
1.时间状语从句 2.地点状语从句 3.条件状语从句
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。如：study, work, stand, lie, know, walk, keep, have, wait, watch, sing, read, sleep, live, stay 等。
#
终止性动词
也称非延续性动词、瞬间动词或点动词， 表示不能延续的动作,这种动作发生后立即 结束。 如:open, die, close, begin, finish, come, go, move, borrow, lend, buy,arrive， reach，fall，give，join，marry等。
#
when
• 由“when” 引导的从句：表示主句的动作和 从句的动作同时发生，或从句的动作发生在主 句动作之前。其谓语动词可以是延续性的,也可 以是非延续性的,
例：1. I was going out when a visitor came. (我正要出门，有客人来访。)(动词同时发生。)
2. I shall tell her the good news when she comes.
4.原因状语从句 5.结果状语从句 6.目的状语从句
7.让步状语从句 8.方式状语从句 9.比较状语从句
#
时间状语从句
定义：在句子中起时间状语作用的句 子称为时间状语从句，可放在句首或
者句尾。
时间状语从句
引导时间状语从句的普通类从属连词有 when（当……时）， while（在……期间）， as（当……，一边……一边……）， before（在……之前）， after（在……之后）， since（从……以来）， till/until（直到）， not...until (直到...才） whenever（无论何时）， as soon as（一……就）等。
You can’t do your homework while you’re watching TV.
#
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。 • 3. As a child, he lived in America. • 他小时候住在美国。 • 4. You will grow wiser as you grow older. • 随着你年令的增长, 你会变得更聪明。
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• （二）、while只能表示某一段时间,不能 表示某一点时间.在while引导的时间状语 从句中,其谓语动词只能是延续性的,而且 也只能与主句中的谓语动词同时发生或 存在.
• 例如：1、While Jim was mending his bike,Lin Tao came to see him.正当吉姆 修自行车时,林涛来看他.
3.When he was a child ，he was always trying out new ideas.
#
while
while 引导的从句：表示“当……过程中”，强 调某一段时间内主句和从句中谓语动词所表示的 动作在同一时期发生。由于while从句表示一个 持续的行为，所以从句中要用持续性动词，并且 持续性动词常用进行时态。 • 例： • Keep an eye on my little sister while I am away. • (我不在时，请照看一下我的小妹妹。) • While we were watching TV, Jim came in. • Strike while the iron is hot. 趁热打铁。
#
While my wife was reading the newspaper, I was watching TV.
While Jim was mending his bike, Lin Tao came to see him.
While they were talking, the bell rang.
#
• As the time went on,the weather got worse. • The atmosphere gets thinner and thinner as
the height increases. • 3. As years go by, • China is getting stronger and richer.
#
• 猜一猜：As a boy,he likes to playing basketball.
• I like playing basketball,while he likes playing the）、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. 2、Were you writing when the teacher came in?老师进 来的时候,你在写信吗? 3、When he was a child he was always trying out new ideas.他小时候就常常试验一些新的设想.
状语从句（adverbial clause）
一、定义
状语从句即从属连词引导的从句在句子中作 状语，修饰谓语动词，用来表示时间、地点、 条件、原因、结果、目的、让步、方式、比 较等。状语从句可以置于句尾或句首，置于 句首时常用逗号与主句隔开。
二、类型
1.时间状语从句 2.地点状语从句 3.条件状语从句