原因目的和结果状语从句初中精华

会计学1原因目的和结果状语从句初中精华

(1)原因状语从句：从句表示的是主句行为的原因。通常由because,

since,

as,

for引导。

(2)because表示直接原因（听话人所不知的），语气最强。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相当于now

that，“因为…，既然…，

鉴于…”表示显然的或已为人知的理由，语气较because弱

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。第1页/共14页as和since语气较弱，一般用来表示明显的原因。由as和since引导的原因状语从句多放在句首。

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.

Eg:1.

I

was

late

for

class

yesterday

_______

there

was

something

wrong

with

my

bike.

2.He

took

off

his

coat

_______

he

felt

hot.

3.________you

can’t

answer

the

question,

I’ll

ask

someone

else.becauseforAs/since第2页/共14页目的状语从句第3页/共14页目的状语从句:从句表示的是主句行为的目的

通常由

so

that,

in

order

that（为了，以便）引导。

例: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.第4页/共14页二、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.

二、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.

（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：A)目的状语从句里往往带有情态动词can,

could,

may,

might等。B)从意思上看，目的状语从句往往表示的目的很明确，不放在句首。

例如：

Speak

clearly

so

that

they

may

understand

you.

(目的状语句)

Jack

is

badly

ill

so

that

he

has

to

rest.

(结果状语从句)

第5页/共14页练习：I

hurried

________I

wouldn't

be

late

for

class.

2.We

should

go

by

bus

_______

we

can

get

there

earlier.

3.May

I

sit

nearer________

I

can

see

more

clearly?判断以下句子是目的状语从句还是条件状语从句？sothatsothatsothat第6页/共14页so

as

to…(肯定结构)

eg.

He

got

up

early

so

as

to

catch

the

early

train.

so

as

not

to…(否定结构)

eg.

He

got

up

early

so

as

not

to

miss

the

early

train.

to…

eg.

He

got

up

early

to

catch

the

early

train.

in

order

that

…

eg.

He

got

up

early

in

order

that

he

could

catch

the

early

train.

in

order

to…

eg.

He

got

up

early

in

order

to

catch

the

early

train.用于目的状语从句，还有：第7页/共14页结果状语从句第8页/共14页(1)结果状语从句由so…that,

such…that,

so

that引导。

(2)so…that与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：

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.

第9页/共14页（2）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：

1.It

was

such

a

hot

day

that

nobody

wanted

to

do

anything.

2.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.

第10页/共14页(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：A.Soon

there

were

so

many

deer

that

they

ate

up

all

the

wild

roses.

B.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第11页/共14页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：他够大了，可以去上学。

He

is

so

old

that

he

could

go

to

school.

=

He

is

old

enough

to

go

to

school.

练习：1.It

is

___

hot

in

the

room

___

we

have

to

go

out

for

a

walk.

2.It

was______a

wonderful

movie______all

of

us

wanted

to

see

it

again.

3.There

was_______little

water

in

the

bottle______the

bird

couldn’t

reach

it.

sothatsuchthatsuchthat第12页/共14页强化练习

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

garden.

A．visit

B．paying

a

visit

C．walk

in

D．w