It 句型歸納

　　1． It is ＋adj．(＋for sb．／sth．) ＋ to do sth．

　　用于此句型的形容詞有：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．

　　用于此句型的名詞有： 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．

　　此句型中的形容詞主要描述某人的品德、特征。能用于該句型的形容詞

　　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