本文目录
什么时候形容词前加be
be+形容词+for sb 表达的是对于sb来说怎么样,形容的是他做的事情怎么样。
例如:做这件事对于他来说很难,it is difficult for him to do this.
他这样做很好,It is nice for him to do this.
而be+形容词+to sb,表达的是对SB.怎么样,形容的是主语的态度如何。
例如:我对他很好,I'm nice to him.
不及物动词做主语,谓语用什么形式
一般用ing形式,为动名词做主语,也有的用to
do动词不定式做主语。对动词及物或不及物无太大要求。
例
(1).动名词作主语,常表示泛指意义的行为。
Seeing
is
believing.
Using
the
right
hand
to
shake
hands
is
a
convention
many
countries.
Talking
mends
no
holes.空谈无济于事。
(2).动名词在“It
is
no
use/
no
good/
fun/
a
waste
of
time/
a
good
pleasure/
not
any
use/
useless/
worthwhile/need等词+dong”结构中作主语,it为形式主语
3.在there
is
no
+v.—ing----结构中,常用动名词作主语。如There
is
no
saying
when
he'll
come.
动词不定式做主语
动词不定式作主语时,句子的谓语动词常用单数,其位置有以下两种:
(1)把不定式置于句首.如:
To
get
there
by
bike
will
take
us
half
(2)用it作形式主语,把真正的主语不定式置于句后,常用于下列句式中.如
①It+be+名词+to
do
It's
our
duty
to
take
good
care
of
the
old.
②It
takes
sb
+
some
time
+to
do
②It
takes
sb
+
some
time
+to
do
.How
long
did
it
take
you
to
finish
the
work
③It+be+形容词+for
sb
+to
do
It
is
difficult
for
us
to
finish
writing
the
composition
in
a
quarter
of
an
hour.
④It+be+形容词+of
sb
+to
do
It
is
stupid
of
you
to
write
down
everything
the
teacher
says.
⑤It
seems(appears)+形容词+to
do
It
seemed
impossible
to
save
money.
.
形容词后for和of的区别
句型“It is+adj.+(for sb)to do sth."和“It is+adj.+(of sb)to do sth."两个句型中, 在使用时要注意adj是说明sb的品质特点的还是说明to do sth的就可以了.说明sb的品质特点用of sb;说明to do sth用for sb.,
简单一句话说就是:说人的用of sb. 说事的用for sb。
1)for sb. 常用于表示事物的特征特点,表示客观形式的形容词,如easy, hard, difficult, interesting, importang,
impossible等:
It's very hard for him to study two languages. 对他来说学两门外语是很难的。
2)of sb的句型一般用表示人物的性格,品德,表示主观感情或态度的形容词,如good, kind, nice, clever, foolish, right。
It's very nice of you to help me. 你来帮助我,你真是太好了。
例:
It is difficult for him to finish the task within two hours.
(difficult 说明完成任务难)
It is kind of you to help me.(kind说明你善良)
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be ambitious of和for的区别
be stupid of意思是愚蠢的(形容词)一个是带事情,一个是带人,of 后面没有特殊情况的话加事情,for后面加人。
当以动词不定式充当句子主语时,通常采用以it作形式主语的结构,该动词不定式的逻辑主语须由介词of引出,即It is/was stupid of sb to- v 的结构中,表示“做…的事的人是很傻的”。在这种句型中,不能用介词for代替of引出逻辑主语;
而其他句型中用for可表示某件事情本身是愚蠢的而非指人。
这就是两者的区别
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