while的意思及用法
4个回答
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while:
[
(h)wail
]
While用法小结
一、while作名词用,表示“一会儿”“一段时间”
1.She likes to lie down for a while after lunch.
她喜欢午饭后躺一会儿。
2.Coming to another country to study requires a big adjustment and it takes a while to fit in.
来到另一个国家求学,需要花一段时间来适应。
二、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 done…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。
[
(h)wail
]
While用法小结
一、while作名词用,表示“一会儿”“一段时间”
1.She likes to lie down for a while after lunch.
她喜欢午饭后躺一会儿。
2.Coming to another country to study requires a big adjustment and it takes a while to fit in.
来到另一个国家求学,需要花一段时间来适应。
二、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 done…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。
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when,while,as的区别和用法
三者可表示“当……时候”,区别如下:
(1)
若主句表示的是一个短暂性动作,从句表示的是一个持续性动作,三者都可用:
he
fell
asleep
when
[while,
as]
he
was
reading.
他看书时睡着了。
【注】as
用于引出一个持续性动词表示“在……期间”时,其谓语通常只能是那些含有动作(action)和发展(development)
意味的动词,一般不能是那些不用于进行时态的动词(如
be,
seem,
love,
want,
agree,
see,
know,
have
等),所以下面一句中的
while
不能换为
as:
a:i’m
going
to
the
post
office.
我要去邮局。
b:while
you’re
there,
can
you
get
me
some
stamps?
当你在邮局时,能帮我买几张邮票吗?
(2)
若主、从句表示两个同时进行的持续性动作,且强调主句表示的动作延续到从句所指的整个时间,通常要用
while:
don’t
talk
while
you’re
eating.
吃饭时不要说话。
i
kept
silent
while
he
was
writing.
在他写的时候,我默不作声。
但是,若主从句表示的两个同时进行的动作含有“一边…一边”之意思,通常用
as:
she
sang
as
she
went
along.
她边走边唱。
(3)
若从句是一个短暂性动作,主句是一个持续性动作,可用
as
/
when
但不用
while:
it
was
raining
hard
when
[as]
we
arrived.
我们到达时正下着大雨。
(4)
若主从句表示的是两个同时(或几乎同时)发生的短暂性动作,用
as
/
when:
i
thought
of
it
just
when
[as]
you
opened
your
mouth.
就在你要说的时候,我也想到了。
(5)
若要表示两个正在发展变化的情况,相当于汉语的“随着”,一般用
as:
things
are
getting
better
and
better
as
time
goes
on.
随着时间的推移,情况越来越好。
as
it
grew
darker,
it
became
colder.
天色越晚,天气越冷。
(6)
表示“每当…的时候”(暗示一种规律性),一般要用
when:
it’s
cold
when
it
snows.
下雪时天冷。
he
smiles
when
you
praise
him.
你夸奖他时他总是笑笑。
(7)
若主从句所表示的动作不是同时发生,而是有先后顺序时,一般要用
when:
i
will
go
home
when
he
comes
back.
他回来时,我就回家去。
(8)
when
可用作并列连词,表示“这时(突然)”;while
也可以用作并列连词,表示“而”、“却”(表示对比);但
as
则没有类似用法:
we
were
about
to
start
when
it
began
to
rain.
我们正要出发,这时天开始下雨了。
he
likes
coffee,
while
she
likes
tea.
他喜欢咖啡,而她却喜欢茶。
(9)
as
和
when
后均可直接跟一个名词,构成省略句,但
while
一般不这样用:
as
[when]
a
boy,
he
lived
in
japan.
他小时候在日本。
(10)
when
和
while
后可接现在分词、介词短语、形容词等构成省略句,但
as
一般不这样用:
when
[while]
reading,
he
fell
asleep.
他看书时睡着了。
when
[while]
in
trouble,
ask
her
for
help.
遇到麻烦的时候你就去找她帮忙。
三者可表示“当……时候”,区别如下:
(1)
若主句表示的是一个短暂性动作,从句表示的是一个持续性动作,三者都可用:
he
fell
asleep
when
[while,
as]
he
was
reading.
他看书时睡着了。
【注】as
用于引出一个持续性动词表示“在……期间”时,其谓语通常只能是那些含有动作(action)和发展(development)
意味的动词,一般不能是那些不用于进行时态的动词(如
be,
seem,
love,
want,
agree,
see,
know,
have
等),所以下面一句中的
while
不能换为
as:
a:i’m
going
to
the
post
office.
我要去邮局。
b:while
you’re
there,
can
you
get
me
some
stamps?
当你在邮局时,能帮我买几张邮票吗?
(2)
若主、从句表示两个同时进行的持续性动作,且强调主句表示的动作延续到从句所指的整个时间,通常要用
while:
don’t
talk
while
you’re
eating.
吃饭时不要说话。
i
kept
silent
while
he
was
writing.
在他写的时候,我默不作声。
但是,若主从句表示的两个同时进行的动作含有“一边…一边”之意思,通常用
as:
she
sang
as
she
went
along.
她边走边唱。
(3)
若从句是一个短暂性动作,主句是一个持续性动作,可用
as
/
when
但不用
while:
it
was
raining
hard
when
[as]
we
arrived.
我们到达时正下着大雨。
(4)
若主从句表示的是两个同时(或几乎同时)发生的短暂性动作,用
as
/
when:
i
thought
of
it
just
when
[as]
you
opened
your
mouth.
就在你要说的时候,我也想到了。
(5)
若要表示两个正在发展变化的情况,相当于汉语的“随着”,一般用
as:
things
are
getting
better
and
better
as
time
goes
on.
随着时间的推移,情况越来越好。
as
it
grew
darker,
it
became
colder.
天色越晚,天气越冷。
(6)
表示“每当…的时候”(暗示一种规律性),一般要用
when:
it’s
cold
when
it
snows.
下雪时天冷。
he
smiles
when
you
praise
him.
你夸奖他时他总是笑笑。
(7)
若主从句所表示的动作不是同时发生,而是有先后顺序时,一般要用
when:
i
will
go
home
when
he
comes
back.
他回来时,我就回家去。
(8)
when
可用作并列连词,表示“这时(突然)”;while
也可以用作并列连词,表示“而”、“却”(表示对比);但
as
则没有类似用法:
we
were
about
to
start
when
it
began
to
rain.
我们正要出发,这时天开始下雨了。
he
likes
coffee,
while
she
likes
tea.
他喜欢咖啡,而她却喜欢茶。
(9)
as
和
when
后均可直接跟一个名词,构成省略句,但
while
一般不这样用:
as
[when]
a
boy,
he
lived
in
japan.
他小时候在日本。
(10)
when
和
while
后可接现在分词、介词短语、形容词等构成省略句,但
as
一般不这样用:
when
[while]
reading,
he
fell
asleep.
他看书时睡着了。
when
[while]
in
trouble,
ask
her
for
help.
遇到麻烦的时候你就去找她帮忙。
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一、while作名词用,表示“一会儿”“一段时间”
二、While作连词(1)引导时间状语
3)引起条件状语,意思是“只要”
While用法小结一、while作名词用,表示“一会儿”“一段时间”
二、While作连词(1)引导时间状语
3)引起条件状语,意思是“只要”
二、While作连词(1)引导时间状语
3)引起条件状语,意思是“只要”
While用法小结一、while作名词用,表示“一会儿”“一段时间”
二、While作连词(1)引导时间状语
3)引起条件状语,意思是“只要”
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我们经常会看到连词when和while的出现,这两个词在英语语言学习和运用中的重要性,下面是对when和while常见用法的小结:
1.
when和while在引导状语从句时,
都可表示“当……的时候”。如
Doctor
Smith
called
when
/
while
we
were
preparing
dinner.
当我们正在做饭的时候,
史密斯医生来访了。
When
/
While
I
was
in
Shanghai,
I
met
with
the
pop
star.
当我在上海时,
碰巧遇到了那位流行歌星。
【注意】
(1)
when表示“当……的时候”,
从句中既可以用延续性动词,
表示状态或时间段,
也可以用非延续性动词,
表示动作或时间点;
while表示“当……
的时候”、“在……期间”,
从句中只能用延续性动词,
表示状态或时间段。例如:
It
was
snowing
when
we
arrived
at
the
station.
When
he
came
in,
we
all
stood
up,
smiling.
I
was
very
fat
when
/
while
I
was
a
child.
When
/
While
she
was
typing,
someone
knocked
at
the
door.
(2)在when或while所引导的状语从句中,
如果从句的主语和主句的主语相同,
且动词又是be动词时,
从句的主语和be动词往往可以省略。例如:
When
/
While
(I
was)
walking
along
the
street,
I
heard
my
name
called.
When
/
While
(you’re)
in
trouble,
turn
to
me
for
help.
2.
when和while都可以表示“尽管、虽然”,
但when经常指描述的事实或结果事与愿违或出人意料,
而while在语气上含有让步之意。例如:
The
boy
was
watching
TV
when
he
should
have
gone
to
bed.
虽然那孩子该睡觉了,
但他还在看电视。
The
old
couple
prefer
walking
when
they
might
take
a
taxi.
尽管可以坐出租车,
那对老夫妇更愿意步行。
While
I
accept
that
he
is
not
perfect,
I
do
actually
like
the
person.
尽管我承认他并不完美,
但我确实真地喜欢他这个人。
While
he
loves
his
students,
he
is
very
strict
with
them.
虽然他爱他的学生,
但对他们的要求也很严格。
while的其它含义和用法:
(1)
然而,
可是
I
like
coffee,
while
my
sister
likes
tea.
我喜欢咖啡,
而我姐姐喜欢喝茶。
I
was
preparing
for
the
exam
while
they
were
chatting.
我在准备考试,
可他们却在闲聊。
(2)
只要
While
there
is
water,
there
is
hope
of
life.
只要有水,
就有生存的希望。
I’ll
offer
help
to
those
poor
children
while
I’m
alive.
只要我活着,
就要帮助那些贫困的孩子。
1.
when和while在引导状语从句时,
都可表示“当……的时候”。如
Doctor
Smith
called
when
/
while
we
were
preparing
dinner.
当我们正在做饭的时候,
史密斯医生来访了。
When
/
While
I
was
in
Shanghai,
I
met
with
the
pop
star.
当我在上海时,
碰巧遇到了那位流行歌星。
【注意】
(1)
when表示“当……的时候”,
从句中既可以用延续性动词,
表示状态或时间段,
也可以用非延续性动词,
表示动作或时间点;
while表示“当……
的时候”、“在……期间”,
从句中只能用延续性动词,
表示状态或时间段。例如:
It
was
snowing
when
we
arrived
at
the
station.
When
he
came
in,
we
all
stood
up,
smiling.
I
was
very
fat
when
/
while
I
was
a
child.
When
/
While
she
was
typing,
someone
knocked
at
the
door.
(2)在when或while所引导的状语从句中,
如果从句的主语和主句的主语相同,
且动词又是be动词时,
从句的主语和be动词往往可以省略。例如:
When
/
While
(I
was)
walking
along
the
street,
I
heard
my
name
called.
When
/
While
(you’re)
in
trouble,
turn
to
me
for
help.
2.
when和while都可以表示“尽管、虽然”,
但when经常指描述的事实或结果事与愿违或出人意料,
而while在语气上含有让步之意。例如:
The
boy
was
watching
TV
when
he
should
have
gone
to
bed.
虽然那孩子该睡觉了,
但他还在看电视。
The
old
couple
prefer
walking
when
they
might
take
a
taxi.
尽管可以坐出租车,
那对老夫妇更愿意步行。
While
I
accept
that
he
is
not
perfect,
I
do
actually
like
the
person.
尽管我承认他并不完美,
但我确实真地喜欢他这个人。
While
he
loves
his
students,
he
is
very
strict
with
them.
虽然他爱他的学生,
但对他们的要求也很严格。
while的其它含义和用法:
(1)
然而,
可是
I
like
coffee,
while
my
sister
likes
tea.
我喜欢咖啡,
而我姐姐喜欢喝茶。
I
was
preparing
for
the
exam
while
they
were
chatting.
我在准备考试,
可他们却在闲聊。
(2)
只要
While
there
is
water,
there
is
hope
of
life.
只要有水,
就有生存的希望。
I’ll
offer
help
to
those
poor
children
while
I’m
alive.
只要我活着,
就要帮助那些贫困的孩子。
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