2023届高三英语二轮复习状语从句课件(共42张PPT)

(共42张PPT)
If the dream is big enough, the facts don't count.
　
如果梦想远大，就一定可以克服艰难险阻。
状语从句在
高考中的运用
While I was walking along the street, I found many beautiful buildings. ( )
2. Where there is a will, there is a way. ( )
3. Now that everybody is here, let’s begin our meeting. （ ）
4. He is taller than I am.( )
5. So clever was he that he was able to work out all the difficult problems. ( )
时间状从
地点状从
原因状从
结果状从
Revision:状语从句的分类
用横线划出下列句子中的状语从句，并指出是哪种状语从句：
比较状从
6. _____________you don’t lose heart, you’ll succeed. ( )
7. __________the sun was shining, it wasn’t very warm. ( )
8. The old lady treats the boy ________he were her own son. ( )
9. I’ll speak slowly ___________ you can understand me. ( )
Revision:状语从句的分类
条件状从
让步状从
方式状从
填入适当的连接词，并指出包含哪种状语从句：
As long as
Although
as if
目的状从
so that
高三状语从句复习
1.时间状语从句
注意: 时态一致: 主将，从现
1. 连接词before
B. 1）It was (not )＋时间段＋before…
“过了多久才(不久就) …”
2）It will （not ）be＋时间段＋before…
“要过多久(不久)就…”
1. 再过2年他就要离开这个国家了。
It will be two years before he leaves the country.
2.过了不久他就回来了。
It was not long before he came back.
1) since 引导的 从句可用延续性或短暂性动词， 表示动作状态的完成。
自从他离开北京，我就没见过他。
I have never seen him since he left Beijing.
2) It is/has been＋时间段＋since…
since+ 瞬间动词过去式（从该动作发生时算起）.
since +持续性动词过去式（从该动作结束时算起）
It is /has been two years since he joined the army.
It is two years since he smoked.
2. 连接词：since
2.连接词when, while, as的用法区别：
1)．while引导的时间状语从句的谓语动词必须是可延续的，而when引导的时间状语从句的谓语动词可是延续，也可是短暂性动词
he was eating his breakfast, he heard the doorbell ring.
I stopped my car, a man came up to me.
(不可用 while)
When/While
When
2)．表示“随着…”， “一边, 一边”用连词as，不用when或while
As the election approached, the violence got worse.
3)．如果主句表示的是短暂动作，而从句用延续性动作的进行 时态表示在一段时间内正在进行的动作时，when, while 与as 可互换使用
When/While/As I was walking down the street, I came across an old friend of mine.
1)It will be three days _______ you see him again.
2)It will be three o’clock _______ you see him again.
3)It is at three o’clock _______ you’ll see him again.
4)It is three days _______ you saw him last time.
before
when
that
since
填一填：
4.till 与until:
He lived with his parents ________ he graduated from college.
2. Not ____ he told me did I know the truth.
3. It was _________ the war was over that he returned to his land.
till/ until
until
not until
Conclusion:
主句为肯定句时, 主句的谓语动词应为延续性动词.
2. 位于句首时.只能用until, 不用till，且主句要部分倒装。
3. not…until可改写为: It is/ was not until… that强调句.”not+ until引导的从句, 一同置于强调句中.
5. as soon as, the moment, the minute, the instant, immediately, directly, instantly, hardly…when, scarcely…when, no sooner…than 引导时间状语从句
=as soon as
I didn’t wait a moment, but came immediately you called.
The moment I heard the voice, I knew father was coming.
注意:
如果hardly或no sooner或scarcely置于句首，句子必须部分倒装。
had hardly/scarcely done…when..did
had no sooner done….than….did
我刚回到家就开始下雨。
Hardly had I got home when it began to rain.
2.让步状语从句
1 . though, although表示“虽然，纵然”之意。
不能与but 连用，但可以与yet 连用
although引导的让步状语从句位于主句之前的情况较多，
though引导的让步状语从句可位于主句之前或主句之后。
例如：
Although/ Though they are poor, yet they are warm-hearted.
She passed the examination though she had not studied very hard.
2.even if或even though引导让步状语从句，表示“即使”、“纵然”，用来使人注意下文所强调内容的性质。
I’ll get there even if/though I have to sell my house to get enough money to go by air.
3.no matter后接上who，what，where，how等疑问词引导让步状语从句，也可以在这类疑问词后面加上ever构成whoever，whatever，wherever，however等。但在引导名词性从句时只能用wh- ever类词。
Don’t trust him, whatever he says.
I will eat whatever you give me.
No matter how hard the work is，you’d better try to do it well.
4 as, though表示“虽然……但是”，“纵使……”之意。
　as引导的让步状语从句必须以部分倒装的形式出现，被倒装的部分可以是表语、状语或动词原形，若表语为单数名词,前置时要省略冠词.though也可用于这样的结构中，但although不可以这样用。例如：
　Hard as/ though he works, he makes little progress.
(=Though he works hard, he makes little progress.)尽管他学习很努力，但几乎没取得什么进步。
Though he was a child, he knew what was the right thing to do.虽然他是一个孩子，但他知道该做什么。
= Child as/though he was, he knew what was the right thing to do.
　
3.原因状语从句:because, for, as, since, now that
because通常表示说话人认为这种理由或原因是听话人所不知道的，全句强调的重点在原因上，不在主句表示的结果上。
He didn’t come to school yesterday because he was ill.
2) since 和as 引导的句子，重点在主句的内容，其原因或理由在说话人看来已很明显，或已为听话人所熟悉，since(相当于汉语的“既然” )和as(由于) 只是一种附带的说明原因，不是对原因进行强调.
Since you are here, why not stay for a few more days
As it’s getting darker, we must go home now.
3) for 是并列连词，它引导的句子只能后置。表示因果关系时，可以和because 换用；但当它用于对主句的内容加以解释或推断时，不能用because 代替，如：
It must have rained last night, for the ground is wet.
3.下列情况下只能使用because：
(1)在回答why的问句时；
(2)在用于强调句型时；
It is / was because… that…
(3)被not所否定时。
4.地点状语从句
地点状语从句常用where, wherever 等连词引导。
We shall go where working conditions are difficult.
=We shall go to the place where working conditions are different.
使用地点状语从句时要注意的问题
注意区分不同从句：引导什么从句，不仅要根据连词，还要据句子结构和句意判别。
You are to find it where you left it.
I don’t know where he came from.
Where he has gone is not known yet.
This place is where they once hid.
I am looking for a house where he can live.
(地状)
(宾从)
(主从)
(表从)
(定从)
1．目的状语从句通常使用的连词有：so that, in order that, so
有否定意义的句式常用 lest, in case, for fear that来引导。
I put down his address for fear that I should forget it.
They spoke in whispers lest they should be heard.
△ 目的状语从句中一般要有 can, may, could, might, will, would, should等情态动词，如：
I am going to the lecture early so that I’ll get a good seat.
(目的状语从句)
I went to the lecture early, so that I got a good seat.
(结果状语从句)
5.目的状语从句
It’s _____ good a book _______ I’ve read it again and again.
It was _____ a cold day _____ there was nobody on the street.
So修饰单数可数名词时,顺序为:
so+adj.+a/ an+n.
Such可修饰任何名词,当其修饰单数可数名词时, 语序为:such+a/ an +(adj.) +n.
so
such
that
that
6. 结果状语从句
7、方式状语从句
引导方式状语从句的从属连词有as，(just) as…, as if (though).
as引导的方式状语从句意为“正如…， 就像… ”
Air is to man as water is to fish.
They talked loudly as if nobody were around.
as if 和as though 引导的从句一般用虚拟语气。但如果从句中所陈述的情况很可能实现，也可用陈述语气。
那个老人跑得很快，仿佛就像个年轻人。
The old man runs very fast as if he were a young man.
8.条件状语从句
1) 用 if(如果),unless(除非), so /as long as(只要), in case(万一), once , on condition that(条件是…)等词引导
2) 时态： 主将从现
I shall not go to the cinema unless I finish my homework.
我可以借给你这本书,条件是你能在星期一还我。
I will lend you the book on condition that you return it on Monday.
易混、易错点
unless/until
1) I didn’t finish reading the book _____ Mum came back.
2) I can’t finish the work ______ you help me.
3) We are going to have a barbecue _______ it rains.
A. until B. when C. unless
结论:
until
unless
unless
unless强调条件
until 强调时间
9. 比较状语从句
比较状语从句常由as…as, than, not so…as, the more…the more等词引导。比较从句部分常是省略句。
The more we can do for you, the happier we will be.
我比他更了解你。
I know you better than he does.
连接词 + done过去分词
Don’t speak until spoken to.
Unless repaired, the washing machine is no use.
(2) 连接词+doing现在分词
Look out while crossing the street.
She waits outside the door as if waiting for someone.
状语从句的省略
在时间和条件等状语从句中,如果主句的主语和从句的主语一致,可以把从句中的主语和be动词省略．
（3）连词＋形容词/其他
常见：if necessary，if possible，when necessary，if any等。
If necessary，I will go there.
1：如果主从句主语一致，从句中又有“be”时，省略主语和be。
2：从句中可省略 it+be。
状语从句的省略
1. He was a swimmer when he was still a child.
2. Don’t speak until you are spoken to .
3.She stood at the gate as if she was waiting for someone.
4. I’ll buy a TV set if it is necessary.
5. Though it is cold, he wore a shirt.
语法填空：
He won’t come to our party even if ______(invite).
Once _____(hear), the song will never be forgotten.
Unless _______(repair), the machine is of no use.
Film has a much shorter history, especially when ______(compare) with such art forms as music and painting.
A girl stood at the gate of the school as if _____(talk) with her teacher.
invited
heard
repaired
compared
talking
even if he is invited
Once the song is heard
Unless the machined is repaired
especially when film is compared with …
as if the girl was talking with…
状语从句的倒装
一般有下面几种情况：
① 否定词开头；not until
② so 加 adj. 开头；
③ as / though引导的让步状语从句。
特别注意：
Hardly / Scarely… when …
No sooner … than …
Practice:按要求完成句子。
1. I didn’t realize that she was a famous movie star until she took off her sunglasses.
Not until _______________________________________.
2. The attack was so sudden that we had no time to escape.
So sudden ________________________________.
3. He had hardly arrived when she started complaining.
Hardly __________________________________________.
4. 虽然这个故事很美好，但却不是真实的（翻译）
Nice as the story is, it is not true.
she took off her sunglasses did I realize that she was a famous movie star.
was the attack that we had no time to escape.
had he arrived when she started complaining.
写作中运用状语从句时的常见错误
1.I didn’t give up. Because my mother often told me, "where there is a will, there is a way.”
2. She worked so hard that could catch up with others.
3.Only we keep optimistic can we succeed.
4.When he hesitating, a man came up to him.
写作中状语从句的几个常见错误:
1.I didn’t give up. Because my mother often told me, "where there is a will, there is a way.”
2. She worked so hard that could catch up with others.
3.Only we keep optimistic can we succeed.
4.When he hesitating, a man came up to him.
,because
she
when
was
1.只有从句，没有主句
2.从句中缺少主语
3.缺少从句的连接词
4.从句中的谓语不完整
状语从句中常用写作句式操练
句式1：
so…that…如此……以致于……
句式2：
The +比较级，the+比较级
“越……就越……”
so…that…如此……以致于……
环境污染非常严重，需要立即采取行动阻止污染。
Environmental pollution is so serious that immediate action should be taken to stop it.
So serious is environmental pollution that immediate action should be taken to stop it.
The +比较级，the+比较级
“越……就越……”
正如谚语所说“赠人玫瑰，手有余香”。能够帮助别人越多，我越开心。(Roses given, fragrance in hand )
As a famous saying goes, “Roses given, fragrance in hand”. The more I can help others, the happier I will be.
Do you like travelling？Staying 1. (health) while 2.____________(travel) can help to ensure your trip is a happy and enjoyable one.3. you are travelling abroad，here are the tips you need to make your trip much 4.______(easy)：
Make sure you have got signed passport(护照) and visa. Also，before you go，fill in the emergency information
healthy
travelling
If/When/While
easier
page of your passport！Make two copies of your passport identification page. This will help a lot if your passport 5.____ ______(steal). Leave one copy at home with friends or relatives. Carry the other 6. you in a separate place from your passport.
Read the Public Announcements or Travel Warnings for the countries you plan to visit. Get yourself familiar with local laws and customs of the countries to 7. you are travelling.
is
stolen
with
which
Leave a copy of your itinerary(旅行日程) with family or friends at home so that you can be contacted in case of an emergency.
Do not accept packages from strangers. Do not carry too much money or 8. (necessary) credit cards. If we make enough 9. (prepare)，we will succeed.
Have 10. good time!
unnecessary
preparations
a
用状语从句翻译下面的句子
1.当有人落后的时候，其他人总是过来提供帮助。
(·江西·书面表达)
___________________________________________________
2.通常无论我们离得多远或多忙，我们都会尽量回家过节。
(·辽宁·书面表达)
__________________________________________________________________________________________
When some fell behind，others would come and offer help.
Usually，no matter how far away or how busy we are，we
will try to return home for the celebration.
3.尽管我很累，但我从没感到这样快乐过。
(·陕西·书面表达)
__________________________________
4.我告诉他长大后我会成为赢家。 (·湖南·书面表达)
_________________________________________________
5.首先，如果你接受我的道歉，我会非常高兴。
(·山东·写作)
______________________________________________________________
Tired as I was，I never felt so happy.
I told him that I would be the winner when I grew up.
In the first place，I’ll be so happy if you could accept my
apology.