it is/was hoped/expected/believed/known/realized/…that…

it is/was hoped/expected/believed/known/realized/…that…
请细致给我讲解解读下这个句型（知识点,注意事项,特殊用法,例句）,

1It is believed to...人们认为.
本句型的结构是：it is + 过去分词 + 不定式,其中it是形式主语,不定式接的才是真正的主语,相当于People believe that.
It is believed that what she said is true.大家相信她的话是真的.
It is believed that she is not the right person for the position.大家都认为她不是这一职位的合适的人选.
类似的■ It be +过去分词+that…句型 ：
1) It is hoped that...= It is hoped to有人希望.
It is hoped that they can pass the written examination this time.希望他们能够通过这次的笔试.
2) It is said that...= It is said to据说.
It is said that the president will pay a visit to China soon.据说这位总统不久将来华访问.
3) It is known that...=It is known to众所周知.
It is known that both English and French are spoken in Canada.众所周知,加拿大既讲英语也讲法语.
4) It is thought that...= It is thought to据认为.
It is thought that they will not win the match.认为认为,这场比赛他们赢不了.
5) It is suggested that...= It is suggested to有人建议.
It is suggested that the meeting should be put off.有人建议会议延期召开.
6）It is sopposed that=It is sopposed to有人期望.
It is said that…据说……
It is reported that…据报导……
It is supposed that…据推测……
It is hoped that…希望……
It is well known that…众所周知……
It is generally considered that…普遍认为……
It is suggested that…有人建议……
注：这类结构有的还可改用接不定式的形式来表达.如：
It is said that he has been to Japan.据说他去过日本.
He is said to have been to Japan.
The meeting is scheduled to take place next week.会议定于下周举行.
All are supposed to come to the meeting on time.所有人都应该按时到会.
拓展：表示"据说"或"相信" 的词组
【believe,consider,declare,expect,feel ,report,say,see,suppose,think,understand】
It is said that… 据说
It is reported that… 据报道
It is believed that… 大家相信
It is hoped that… 大家希望
It is well known that… 众所周知
It is thought that… 大家认为
It is suggested that… 据建议
It is taken granted that… 被视为当然
It has been decided that… 大家决定
It must be remember that…务必记住的是
例子：It is said that she will leave for Wuhan on Tuesday.