4.It looks/seems/happens that (as if)…：表“似乎… ”。
(1) It seems that your proposals are good for his study.
似乎你的建议对他的学习有帮助。
(2) It seems to me that she will not come to the birthday party.
依我看，她不会来参加派对。
(3) It seems as if he did not see me.
似乎他没有看见我。
注意：
(1) It seems that…：从句用陈述语气。
(2) It seems as if …：从句用虚拟语气。
5.It is said/believed/reported/hoped/ well-known that从句：表示“据说/人们相信/据报道/人们希望/众所周知/建议…”。
(1) It's said that he has already made the final decision.
据说，他已经做出了最后的决定。
6.It turned/turns out that…：结果是…
(1) It turned out that he was innocent.
结果表明，他是无辜的。
二、作形式宾语
(1) I find it very difficult to learn English well. 我发现学好英语很难。
(2) She thinks it her duty to teach students well. 她认为教好孩子们是她的职责。
三、用于指“除了人以外的事物或动物”。
(1) I have a pet cat. It is brown. 我有一只宠物猫，它是棕色的。
四、用于指“性别不明的婴儿”或只听见声音而没看见的人”。
(1) There is some knock on the door. It must be your new friend.
有敲门声，一定是你的新朋友。
五、指“时间、距离、价值、天气、温度”等自然现象。
(1) It is too late for you to go to school.
这个时候上学太晚了。
(2) It is raining in Chengdu this week.
成都这周一直在下雨。
