例：不用说早睡早起是值得的。It goes without saying that it pays to keep early hours.
3.All things considered,总而言之It maybe safely said that它可以有把握地说
4.Therefore,in my opinion,its more advisable因此，在我看来，更可取的是
5.From what has been discussed above,we may safely draw the conclusion that通过以上讨论，我们可以得出结论
6、是必要的 It is necessary （for sb.） to do / that
是重要的 It is important（for sb.） to do / that
是适当的 It is proper （for sb.） to do / that
是紧急的 It is urgent （for sb.） to do / that
例：It is proper for us to keep the public places clean.
It is proper that we （should）keep the public places clean. 我们应当保持公共场所清洁。