It’s+adj+for sb to do sth对于某人来说做某事是怎么样的eg：It’s important for us to have a balanced diet 对于我们来说，平衡饮食很重要
There is no doubt that 毫无疑问的是...eg：There is no doubt that the problem of environmental pollution is becoming more and more serious.毫无疑问的是环境污染的问题日益严重
In my opinion在我看来eg：In my opinion，I think this is a good opportunity for you.在我看来，我认为这对于你来说是个好机会
It is said/reported +that 从句据说/据报道....eg：It is said that he has been there many times.据说他去过那儿很多次了
as far as i know据我所知eg：as far as i know，he is honest。据我所知，他为人诚实
What interested sb most was sth / that 从句最让某人感兴趣的是..eg：What interested her most was the longitude line.她最感兴趣的是那条通过天文台的经线。注意：也可以将interested根据作文所需要改成别的adj，如 cheer，Excited，unhappy等
sth play an important role in our daily life某物在我们的生活中扮演着重要的角色eg：Science and technology play an important role in our daily life.科学技术在我们的日常生活中扮演着重要的角色
With the development of science and technology随着科学技术的发展eg：With the development of science and technology, human life has changed tremendously.随着科学的发展，人类的生活发生了巨大的变化
All in all 总而言之nowadays现如今every coin has its two sides事物都有两面性Personally 就我个人而言As for 至于；就....而论In addition另外however然而