It is a beautiful day today. The sun is shining brightly and the sky is clear blue. （今天是美好的一天。

阳光明媚，天空湛蓝。）

It is important to protect the environment for our future generations. （为了我们的子孙后代保护环境是很重要的。）

It is my dream to travel around the world one day. （有朝一日环游世界是我的梦想。）

It is getting colder, so you'd better put on more clothes. （天气越来越冷了，所以你最好多穿点衣服。）

It is time for us to start working on this project. （我们该开始着手这个项目了。）

It is said that this book is very interesting and worth reading. （据说这本书非常有趣，值得一读。）

It is not easy to learn a new language in a short time. （在短时间内学会一门新语言并不容易。）

It is his habit to go for a jog every morning. （每天早上慢跑是他的习惯。）

It is a pity that we missed the last bus and had to walk home. （很遗憾我们错过了最后一班公交车，不得不步行回家。）

It is necessary to wear a seatbelt when driving a car. （开车时系安全带是必要的。）

It is a great honor for me to be invited to this important event. （被邀请参加这个重要活动对我来说是莫大的荣幸。）

It is obvious that he has made a lot of progress in his studies recently. （很明显他最近在学习上取得了很大进步。）

It is raining heavily outside, so we should stay at home. （外面雨下得很大，所以我们应该待在家里。）

It is possible to finish this task today if we work hard together. （如果我们一起努力，今天有可能完成这项任务。）

It is a waste of time to play video games all day long. （整天玩电子游戏是浪费时间。）

It is common knowledge that smoking is harmful to health. （吸烟有害健康是常识。）

It is difficult to solve this math problem without any help. （没有任何帮助的话，很难解决这道数学题。）

It is a wonderful movie that I have watched several times. （这是一部很棒的电影，我已经看了好几遍了。）

It is important to maintain a good relationship with your colleagues. （与同事保持良好的关系很重要。）

It is my pleasure to help you with your English. （帮助你学习英语是我的荣幸。

）