It 句型归纳
1． It is ＋adj．(＋for sb．／sth．) ＋ to do sth．
用于此句型的形容词有：easy， hard， difficult，possible，
important， impossible， necessary， good， bad， exciting，
interesting， surprising 等。如：
It is necessary to change your job．
It was very hard for them to walk such a long way in
the snow．
2． It is ＋n．(＋for sb．／sth．) ＋ to do sth．
用于此句型的名词有： pity, shame, pleasure, one’s duty, one’s
job, fun, joy, good manners, bad manners 等。如：
It is a pity for you to have missed such a wonderful
play．
It is bad manners for the young to take up the seats
for the old．
3． It is ＋adj．＋of sb．＋to do sth．
此句型中的`形容词主要描述某人的品德、特征。能用于该句型的形容词
有：
kind, nice, wise,
silly, polite, impolite, friendly, foolish, clever 等。如：
How silly it was of you to give up such a good
chance！
It is friendly of the family to try to make me feel
