内容正文:
重难点突破
could的用法
一、
概念
could属于情态动词,是can的过去式,后跟动
词原形。
二、
用法
1.
表示“能力”。如:
I
could
swim
when
I
was
only
six.
我年仅六岁时就会游泳。
2.
表示“可以”,常用来代替can,用于比较委婉地
提出请求。如:
—
Could
you
let
me
look
at
your
passport?
能让我看看你的护照吗?
—
Yes,
here
it
is.
行,这就是。
拓展
如果你能够或愿意帮助别人,你可以使用肯定
回答:Yes,
I
can./Sure./Certainly.
是的,我可
以。/当然。/当然可以。
如果你无法帮助别人,你可以使用否定回答:
Sorry,
I
cant.
对不起,我不能。
Sorry,
I
am
afraid
not.
对不起,我恐怕不行。
三、
常见句型
1.
陈述句
肯定句:主语+
could
+动词原形(+其他).
如:
She
could
write
when
she
was
two
years
old.
她两岁时就会写字了。
否定句:主语+
couldnt
+动词原形(+其他).
如:
I
couldnt
ride
a
bike
then.
那时我不会骑自行车。
2.
一般疑问句以及答语
—
Could
+主语+动词原形(+其他)?
—
Yes,主语+
could./No,主语+
couldnt.
如:
—
Could
you
draw
pictures
before?
以前你能画画吗?
—
Yes,
I
could./No,
I
couldnt.
是的,我能。/不,我不能。
3.
特殊疑问句
特殊疑问词+一般疑问句? (特殊疑问词作主
语或主语修饰语的情况除外) 如:
What
could
he
do?
他能做什么?
一、
读句子,选出正确的词填空。
1.
I
(could/couldnt)
ride
a
bike
at
the
age
of
4.
But
now
I
can.
2.
The
boy
was
deaf.
He
couldnt
(hear/to
hear).
3.
Helen
Keler
(could/couldnt)
see
but
she
(could/couldnt)
learn.
4.
He
could
(speak/speaks)
English
wel
then.
二、
给下列句子选择相应的答语。
( )1.
Jiejie
couldnt
talk.
( )2.
Meimei
couldnt
hear.
( )3.
Paul
can
fly.
( )4.
Tom
couldnt
walk.
A.
Maybe
she
was
deaf.
B.
Maybe
she
was
a
baby.
C.
Maybe
he
broke
his
leg.
D.
Maybe
its
a
bird.
三、
按要求完成句子。
1.
She
could
read
and
write.(改为否定句)
2.
Sam
could
sing
English
songs.(对画线部
分提问)
3.
Could
she
read
books
then? (作否定回答)
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