常用的主语从句句型。
1.It is +adj/n + 从句
It is a pity/shame that......遗憾的是
It is a possible that......很可能
It is a impossible that......不可能
It is a no wonder that......并不奇怪/无疑
It is dear that...... 显然
2.It + vi(不及物动词) + 从句
It seems/appear that 似乎
It happens that 碰巧
It occurs to sb that 某人突然想起
3.It + be done + 从句
It is said that......据说
It is reported that...... 据报道
It is suggested that...... 人们建议
