affiliated-雨刷
it is+adj+(for sb) +(not) to do
sth
和
it is+adj+of sb+(not) to
do sth.
句型:
it
is+ adj+ for sb+ to do sth
表示说话人对客观事件的决断
,
意为
:
“
做
…
是<
/p>
…
的
”
。其中<
/p>
it
是这个句子的形式主语,真正的主语是
to do sth.
例如:读书很有趣。
It is
very interesting to read.
看书是有用的。
It is
useful to read.
每天跑步是健康的。
It is
healthy to run every day
解出道题对我来说有点难。
It
is a little difficult for me to work out this
question.
不完成作业是糟糕的。
It Is bad not to
finish homework.
迟到是糟糕的。
It is bad
to be late for school.
1.
it is+ adj+
(for sb)+ to do sth
可以与
“
动名词
v-
ting+be+adj”
的句型互换。
例如:
It is very interesting to
read.=Reading is very interesting.
It is very useful to
read.=_________ is very useful.
It is healthy to run every
day.=_______________________ is healthy.
It is a little
difficult for me to work out this question.
=_____________________ is a little
difficult ___________.
It is bad not to finish
homework.=________________________ is bad.
It is bad to be
late for school.=_____________________is bad.
2.
注意:
(1)
在转换句型的时候一定要把原句中的不定式
(not
)to
do
改成
(not)
doing
,在句子中充当主语。正是由于
to do
sth
才是真正的主语,才可以实现句型转换。
(2)
因
为
for
是介词,介词后面跟宾语,所以
sb
如果是代词的话,要用宾格。
(3)for
sb
这个部分可有可无,主要看句子的意思。
(4)
这
个句型中的形容词是用来形容
to do sth
这件事的,而
不是形容
sb
。
练习:
1.
收到你的来信真是令人兴奋。
It is
__________ to _______ _______ _______.
__________ _______ _____ is
___________.
2.
早起对于她来说很容易。
It is ______
______ for ________ to _____ _____ _______.
_________ ____
_______ is _______ _______ for ________.
3.
读报很有趣。
It is
______ ___________ to read newspapers.
__________ ____________ is ______
___________.
4.
对于孩子们来说,在河里游泳很危险。
_________________________________________________
____________.
=________________________
____________________________________.
5.
小心驾驶是非常重要的。
It is ________
________ to ______ ______________.
_______ _________ is
_________ __________.
句型:
it is+adj+of sb+ (not)to
do sth
该句型通常表示说话人对客观事件的惊讶、兴奋、懊悔、难过等感叹情绪
,与
it is+adj+(for sb)+(not) to do
sth
的意
义不同。
例如:
It is very kind of you to
help me.
你能帮助我,真是太好了。