关于过去进行时的用法

Question

如题所述

Answer 1

1）
概念：表示过去某时正在进行的状态或动作。
2）
过去进行时的主要用法是描述一件事发生的背景；一个长动作发生的时候，另一个短动作发生。
3)
常用的时间状语
this
morning,
the
whole
morning,
all
day
yesterday,
from
nine
to
ten
last
evening,
when,
while
My
brother
fell
while
he
was
riding
his
bicycle
and
hurt
himself.
It
was
raining
when
they
left
the
station.
When
I
got
to
the
top
of
the
mountain,
the
sun
was
shining.
典型例题
1)
Mary
___
a
dress
when
she
cut
her
finger.
A.
made
B.
is
making
C.
was
making
D.
makes
答案C.
割伤手指是已发生的事情，应用过去时。同
时，when表时间的同时性，"玛丽在做衣服时"提供事情发生的背景，因此用过去进行时。
2)
As
she
___
the
newspaper,
Granny
___
asleep.
read；
was
falling
B.
was
reading；
fell
C.
was
reading；
was
falling
D.
read；fell
答案B.句中的as
=
when,
while，意为"当……之时"。描述一件事发生的背景时，用过去进行；一个长动作发生的时候，另一个短动作发生。句意为
"在她看报纸时，奶奶睡着了。"句中的
fell
(fall的过去时)，是系动词，后跟形容词，如：fall
sick。
when和while的区别：
一。引导时间状语从句时，WHILE连接的是时间段，而WHEN连接的多是时间点
例如What
does
your
father
do
while
your
mother
is
cooking?
What
does
your
mother
do
when
you
come
back?
二，WHILE可以连接两个并列的句子，而WHEN不可以
例如I
was
trying
my
best
to
finish
my
work
while
my
sister
was
whtching
TV
三，WHEN是特殊疑问词，对时间进行提问，WHILE不是。
例如，When
were
you
bron?

Answer 2

转贴了这么多,看得都头晕了~
简而言之,
while
后面跟过去进行时
(be(was,were)
+
doing)
when
后面跟一般过去时本回答被提问者采纳