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原因状语从句
(1)
原因状语从句通常由
because, since,
as,for
引导。
(2)beca
use
表示直接原因，语气最强。
because
引导的原因状语从句多放在主句之后。回答由
why
提出的问
题，只能用
because
。
此外，
because
和
so
不能
同用在一个句子里。
例如：
------
Why
aren’t going
there?
------
Because I don’t
want to.
since
引导原
因状语从句，相当于
now that
，意思是
“
因为
……
，既然
……
，
鉴于
……”
。
例如：
Since the
rain has stopped
，
let’s go
for a walk.
既然雨停了，我们出去散散步吧。
as
和
si
nce
语气较弱，一般用来表示明显的原因。由
as
和
since
引导的原因状语从居多放在句首。<
/p>
例如
：
As he has no car, he can’t
get there easily.
Since we have no money, we can’t buy
it.
(4)for
表示所说的理由
是一种补充说明
,for
引导的从句一般不放在句子的开头。如
:
I
decided to stop and have lunch, for I was feeling
quite hungry.
小试牛刀：
I was late
for class yesterday _______ there was something
wrong with my bike.
He took off his
coat _______ he felt hot.
you
can’t answer the question, I’ll ask
som
eone else.
?
结果状语从句
(1)
结果状语从句由
so…that, such…that, so
that
引导。
(2)
so…that
语
such...that
可以互换。在由
so...that
引导的结果
状语从句中，
so
是副词，与形容词连用。其结
构是
: “
...so +
形容词（副词）
+ that +
从句
”
。
例如：
He was so glad that he
couldn’t say a word.
Mother lives so far away that we hardly
ever
（几乎不，从来不）
see
her.
在由
such…that
引
导的结果状语从句中，
such
是形容词，它修饰的可以是单数
或复数可数名词，也可以是不
可数名词；其结构是
:
“
...such +a / an +
形容词
+
名词
+ that +
从句
”
。
例如：
It was such a hot day
that nobody wanted to do anything.
He
had such long arms that he could almost touch the
ceiling.
（天花板）
有时上述两种结构是可以互换的。
例如：
It was such a wonderful
film that all of us wanted to see it again.
=The film was so wonderful that all of
us wanted to see it again.
(3)
如果名词前由
many,
much, little,
few
等词修饰时，只能用
so,
不
用
such
。
例如：
Soon there were so many
deer that they ate up all the wild roses.
He has so little time that he can’t go
to the cinema with you.
（
4
）如果主从句的主语相同，并且从句是否定的形式，可以用
too...to...
句型转化。
例如：
He was so excited that he
couldn't go to sleep that night. = He was too
excited to go to sleep.
（
5
）如果主从句的主语相同，但从句是肯定的形式，可以用
adj.+
enough
替换。
例如：
He is so old that he
could go to school. = He is old enough to go to
school.
他够大了，可以去上学。
小试牛刀：
It is ___
hot in the room ___ we have to go out for a walk.
It was
a wonderful movie
all
of us wanted to see it again.
1
There were
little water in the bottle
the bird
couldn’t reach it.
He is so
young that he couldn
’
t go to
school.=
.
The classroom is so big that it can
hold 100 person. =
.
?
目的状语从句
(1)
目的状语从句通常由
so that, in order
that
（为了，以便）引导。
例如：
We started early so that
we could catch the first train.
We
used the computer in order that we might save
time.
(2)so that
可引导目的状语从句，此时
可用
to
或
in order to<
/p>
替换
,
将其改为简单句。
例如：
He got up early so
that he could get to school on time.
=He got up
early
（
in
order
）
to get to
school on time.
(3)so that
既可
引导目的状语从句，又可引导结果状语从句。区别这两种从句的办法有两个：
1)
目的状语从句里
往往带有情态动词
can,
could, may, might
等。
2)
从意思上看，目的状语从句往往表示的目的很明确。
例如：
Speak clearly so that
they may understand you.
(
目的状语从句
)
Jack is badly ill so that he has to
rest.
(
结果状语从句
)
小试牛刀：
I hurried
I wouldn't be late for class.
We
should go by bus ___
we can get
there earlier.
May I sit
nearer
I
can see more clearly?
一、单项选择。
1
．
We’ll stay at
home if it ______ tomorrow.
A
．
rain
B
．
rains
C
．
is
raining
D
．
will rain
2
．
We
didn’t go home _____ we finished the
work.
A
．
since
B
．
until
C
．
because
D
．
though
3
．
She ______ when
I went to see her.
A
．
is
reading
B
．
have read
C
．
was
reading
D
．
reads
4
．
_____ the rain
stops, we’ll set off for the station.
A
．
Before
B
．
Unless
C
．
As soon
as
D
．
Though
5
．
She looks
forward every spring to ____ the flower-lined
garden.
A
．
visit
B
．
paying a visit
C
．
walk
in
D
．
walking in
6
．
Mr. White hoped
he ______ China the next year.
A
．
would
visit
B
．
will visit
C
．
visited
D
．
has visited
7
．
I
told him that the sun ______ in the east.
A
．
rises
B
．
rose
C
．
has
risen
D
．
was rising
8
．
She
was _____ tired _____ she could not move an inch.
A
．
so,
that
B
．
such, that
C
．
very,
that
D
．
so, as
9
．
He was
sentenced to death _____ what he had stolen from
the bank.
A
．
that
B
．
since
C
．
because
D
．
because
of
10
．
I didn’t know
what ______.
A
．
was the
matter
B
．
is the matter
C
．
the matter
was
D
．
the matter is
11
．
I
couldn’t agree with ______ at the
meeting.
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