动词ing作主语的用法是什么？

Question

如题所述

Answer 1

有两种结构：
1.动名词短语
+
系动词
+ 表语，如：Seeing
is
believing.
眼见为实
2.形式主语+
系动词
+ 表语 +
动名词短语，如：It
is
helpful
keeping
exercises
every
day.
每天坚持锻炼是有好处的。
一般来说动名词或动名词短语作主语，放在句首。
e.g.
Learning
a
foreign
language
is
very
useful
to
everyone.
Reading
in
bed
is
bad
for
your
eyes.
做宾语的结构：
动名词及其短语放在行为动词介词后，作宾语。
e.g.
Have
you
finish
doing
your
homework
?
(动词宾语)
He
is
not
good
at
making
friends.
(介词宾语)
注意事项：
1.
动名词作主语表单数概念，谓语动词用单数形式。
e.g:
Walking
after
supper
is
good
for
your
health.
2.
动名词作动词宾语，往往是一些固定搭配，常跟动名词作宾语的动词有：finish,
enjoy,
mind,
practise,
deny,
consider,
suggest,
admit,
put
off,
insist
on等。
3.动名词的复合结构作主语和宾语
什么是动名词的复合结构？指物主代词、名词所有格是动名词逻辑上的主语、动名词是其逻辑上的谓语。
(1)动名词复合结构作主语
e.g.
Your
coming
made
us
happy.
Your
father’s
cooking
is
very
good.
(2)
动名词的复合结构作宾语
e.g.
Do
you
mind
my
smoking
?
My
friend
insisted
on
my
staying
here.