It is no wonder that… ……毫无疑问。/……是确定无疑的。
It is not any use/good doing… 做……没有用
It is one's turn to do sth. 轮到某人做……
It is polite/impolite to do… ……(不)礼貌。
It is possible that… ……有可能……(可能性最小)
It is probable that… ……有可能……(可能性最大)
It is reported that… 据报道……
It is said that… 人们说……
It is suggested that… 人们建议……
It is tempting to conclude that… 我们可以推出结论……
It is thought that… 人们认为……
It is up to sb.(to do) 由某人来决定
It is useless doing… 做……没有用
It is/was+被强调部分+连词+从句 (强调句型)
It is+adj.+of sb. =sb. is adj. 某人怎么样
It is+n.+for sb. to do sth. = To do sth. is n. for sb. 做某事对某人是……
It makes no difference. 没有什么区别。
It occurred to sb. that… 某人忽然意识到……
It seems that… 看起来……
