while做连词怎么区分"虽然"和"当……时候"这两个意思?
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while做连词怎么区分"虽然"和"当……时候"这两个意思?
虽然都是作为连词,但是一个是引导让步状语,一个是引导时间状语,在遇到以下两个句子的时候如何区分?
While the disease is in a __i___ state it is almost impossible to determine its existence by __ii___.
i (A) a critical (B) a latent (C) an overt ii (D)postulate (E) methodology (F) observation
While some argue that imposing tolls on highway uses circumvents the need to raise public taxes for road maintenance,the phenomenal expense of maintaining a vast net work of roads _____ reliance on these general taxes.
(A) avoids (B) diminishes (C) necessitates (D) discourages (E)ameliorates
虽然都是作为连词,但是一个是引导让步状语,一个是引导时间状语,在遇到以下两个句子的时候如何区分?
While the disease is in a __i___ state it is almost impossible to determine its existence by __ii___.
i (A) a critical (B) a latent (C) an overt ii (D)postulate (E) methodology (F) observation
While some argue that imposing tolls on highway uses circumvents the need to raise public taxes for road maintenance,the phenomenal expense of maintaining a vast net work of roads _____ reliance on these general taxes.
(A) avoids (B) diminishes (C) necessitates (D) discourages (E)ameliorates
·
While
作连词
(1)
引导时间状语
1.We
must
strike
while
the
iron
is
hot.
趁热打铁.
2.While
she
was
listening
to
the
radio
,
she
fell
asleep.
她听着收音机睡着了.
(2)
引起让步状语从句,意思是
“
虽然
…
但是
….”
、
“
尽管
…
但是
…”(
多放于句
首
)1.While
he
loves
his
students
,
he
is
very
strict
with
them..
虽然他爱他的学生,可是他对他们很严格.
2.While
these
experiments
are
interesting
and
useful
,
it
is
important
to
remember
that
they
may
not
always
tell
us
much.(BookIIIp125)
虽然这些实验很有趣也有用,
但是很重要的是要记住,
这些实验也可能不会
告诉你很多.
(3)
引起条件状语,意思是
“
只要
”
1.While
there
is
life
there
is
hope.
只要生命存在,就有希望.
2.While
there
is
a
way
there
is
away.
有志者事竟成.
三、
While
作并列连词用,意思为
“
而,然而
”
,表对比.而
but
表转折.注
意用心比较体会
while
与
but
的句中用意
1.Some
people
waste
food
while
others
haven't
enough.
有些人很费粮食,然而有些人却吃不饱.
2.The
son
was
having
a
good
meal
at
home
,
while
the
parents
were
working
in
the
fields.
儿子在家吃好饭而父母却在田里辛勤劳作.
3.I
ought
to
have
helped
her
,
but
I
never
could.
我本该帮她但没能.
4.Honey
is
sweet
,
but
the
bee
stings.
蜂蜜很甜,但蜜蜂有刺蜇人.
四
.while
,
when
,
as
的用法区别
都译为
“
当
…
的时候
”
,
区别为:
when
后的从句谓语动词既可是延续性动词,
也可是短暂性动词,
而且还可作并列连词,
译为
“
这时
”
.
但以下句型一定用
when
,
作并列连词:
句型
A
:
be
about
to
do…when…
正要做
…
这时
(
发生另一事
)
句型
B
:
was/were
doing…when…
正在
…
这时
(
发生另一事
)
句型
C
:
had
don
e…when…
刚要做
…
这时
(
发生另一事
)
1.We
were
about
to
set
out
when
it
began
to
rain.
我们刚要出发天突然下雨了.
2.He
had
hardly
sat
down
when
his
mobile
rang.
他刚一坐下手机就响了.
3.I
was
walking
along
the
bank
of
the
river
when
I
fell
into
it.
我正沿河岸散步突然掉进水里.
while
后的从句谓语动词只能是延续性动词,强调主从句的两个动词同时发
生;
while
也可作并列连词,表示两个动作的对比,译为
“
而
”“
然而
”
.
as
则表示
两个变化中的动作的同时性,译为
“
一边
…
一边
…”
.
1.While
his
mother
was
cooking
in
the
kitchen
,
the
boy
fell
asleep
in
the
chair.
(
在一个延续动作过程中发生另一个动作
)
2.He
hurried
home
,
looking
behind
as
he
went.
他匆匆回家,边走边往后看.
■
巩固练习:
一
.
改错
1.She
is
fat
but
I
am
thin.
2.It
was
raining
while
we
arrived.
3.She
sang
while
he
walked.
4.I
don't
know
them
well
,
while
they
are
my
neighbors.
二
.
选择最佳答案:
1.She
thought
I
was
praising
her
child
,
_____
,
in
fact
,
I
was
scolding
him
for
his
bad
behaviors
at
school.
A.what
B.while
C.so
that
D.therefore
2.I
do
every
single
bit
of
housework
____
my
husband
Bob
just
does
the
dishes
now
and
then.(2004
全国卷
II35)
A.while
B.since
C.when
D.as
3.______
it
is
expected
that
students
come
university
with
the
ability
to
take
a
good
set
of
notes
,
this
is
not
always
the
case.
A.When
B.As
C.For
D.While
4.We
were
swimming
in
the
lake
___
suddenly
the
storm
started.
A.when
B.while
C.until
D.before
5.---You
seem
to
have
had
that
car
for
years.
---Yes
,
it's
in
good
condition
,
but
I
should
sell
it
____
it
still
runs.
A.if
B.before
C.because
D.while
答案:一
1.but
改成
while
.因为
fat
与
thin
形成对比
2.while
改成
when
.因为
arrived
为短暂动词
3.while
改成
as
.表示
“
一边
…
一边
…”
4.While
they
are
my
neighbors
,
I
don't
know
them
well.
主句
和从句颠倒位置.
二
.1.
选
B
.
while
并列连词,表对比,意为,
“
而,但是
”
2.
选
A.while
含有对比之意,意为
“
然而
”
.
3.
选
D.
在此句中
while
表示
“
尽管
”
.
4.
选
A
.
wasdoing·
·
·
when·
·
·
一个固定句式.
5.
选
D.
意思为
“
趁着
···”
While
作连词
(1)
引导时间状语
1.We
must
strike
while
the
iron
is
hot.
趁热打铁.
2.While
she
was
listening
to
the
radio
,
she
fell
asleep.
她听着收音机睡着了.
(2)
引起让步状语从句,意思是
“
虽然
…
但是
….”
、
“
尽管
…
但是
…”(
多放于句
首
)1.While
he
loves
his
students
,
he
is
very
strict
with
them..
虽然他爱他的学生,可是他对他们很严格.
2.While
these
experiments
are
interesting
and
useful
,
it
is
important
to
remember
that
they
may
not
always
tell
us
much.(BookIIIp125)
虽然这些实验很有趣也有用,
但是很重要的是要记住,
这些实验也可能不会
告诉你很多.
(3)
引起条件状语,意思是
“
只要
”
1.While
there
is
life
there
is
hope.
只要生命存在,就有希望.
2.While
there
is
a
way
there
is
away.
有志者事竟成.
三、
While
作并列连词用,意思为
“
而,然而
”
,表对比.而
but
表转折.注
意用心比较体会
while
与
but
的句中用意
1.Some
people
waste
food
while
others
haven't
enough.
有些人很费粮食,然而有些人却吃不饱.
2.The
son
was
having
a
good
meal
at
home
,
while
the
parents
were
working
in
the
fields.
儿子在家吃好饭而父母却在田里辛勤劳作.
3.I
ought
to
have
helped
her
,
but
I
never
could.
我本该帮她但没能.
4.Honey
is
sweet
,
but
the
bee
stings.
蜂蜜很甜,但蜜蜂有刺蜇人.
四
.while
,
when
,
as
的用法区别
都译为
“
当
…
的时候
”
,
区别为:
when
后的从句谓语动词既可是延续性动词,
也可是短暂性动词,
而且还可作并列连词,
译为
“
这时
”
.
但以下句型一定用
when
,
作并列连词:
句型
A
:
be
about
to
do…when…
正要做
…
这时
(
发生另一事
)
句型
B
:
was/were
doing…when…
正在
…
这时
(
发生另一事
)
句型
C
:
had
don
e…when…
刚要做
…
这时
(
发生另一事
)
1.We
were
about
to
set
out
when
it
began
to
rain.
我们刚要出发天突然下雨了.
2.He
had
hardly
sat
down
when
his
mobile
rang.
他刚一坐下手机就响了.
3.I
was
walking
along
the
bank
of
the
river
when
I
fell
into
it.
我正沿河岸散步突然掉进水里.
while
后的从句谓语动词只能是延续性动词,强调主从句的两个动词同时发
生;
while
也可作并列连词,表示两个动作的对比,译为
“
而
”“
然而
”
.
as
则表示
两个变化中的动作的同时性,译为
“
一边
…
一边
…”
.
1.While
his
mother
was
cooking
in
the
kitchen
,
the
boy
fell
asleep
in
the
chair.
(
在一个延续动作过程中发生另一个动作
)
2.He
hurried
home
,
looking
behind
as
he
went.
他匆匆回家,边走边往后看.
■
巩固练习:
一
.
改错
1.She
is
fat
but
I
am
thin.
2.It
was
raining
while
we
arrived.
3.She
sang
while
he
walked.
4.I
don't
know
them
well
,
while
they
are
my
neighbors.
二
.
选择最佳答案:
1.She
thought
I
was
praising
her
child
,
_____
,
in
fact
,
I
was
scolding
him
for
his
bad
behaviors
at
school.
A.what
B.while
C.so
that
D.therefore
2.I
do
every
single
bit
of
housework
____
my
husband
Bob
just
does
the
dishes
now
and
then.(2004
全国卷
II35)
A.while
B.since
C.when
D.as
3.______
it
is
expected
that
students
come
university
with
the
ability
to
take
a
good
set
of
notes
,
this
is
not
always
the
case.
A.When
B.As
C.For
D.While
4.We
were
swimming
in
the
lake
___
suddenly
the
storm
started.
A.when
B.while
C.until
D.before
5.---You
seem
to
have
had
that
car
for
years.
---Yes
,
it's
in
good
condition
,
but
I
should
sell
it
____
it
still
runs.
A.if
B.before
C.because
D.while
答案:一
1.but
改成
while
.因为
fat
与
thin
形成对比
2.while
改成
when
.因为
arrived
为短暂动词
3.while
改成
as
.表示
“
一边
…
一边
…”
4.While
they
are
my
neighbors
,
I
don't
know
them
well.
主句
和从句颠倒位置.
二
.1.
选
B
.
while
并列连词,表对比,意为,
“
而,但是
”
2.
选
A.while
含有对比之意,意为
“
然而
”
.
3.
选
D.
在此句中
while
表示
“
尽管
”
.
4.
选
A
.
wasdoing·
·
·
when·
·
·
一个固定句式.
5.
选
D.
意思为
“
趁着
···”
while做连词怎么区分"虽然"和"当……时候"这两个意思?
求问as 作 “当···的时候” 意思时,和when while 怎么区分用?
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