2It is estimated that

3It must be stressed out that

4 Nothing has received more praise and abuse than something.

5Something leave much to be desired.

6 A is to B what C is to D.

7Never has something failed to fascinate us in modern society

8It is no overstatement to say that

9It is no exaggeration to say that

10Something is a good case in point.

11The ever-accelerated updating of something has brought about both chances and challenges.

12It is \was + 被强调部份 + that \ who + 原句剩余部份.

13Something is indispensable to somebody in this updating society.

14On the one hand,

15 On the other hand,

16An argument occasionally these days is whether

17 For example,

18 For instance,

19 To illustrate,

20 As an illustration,

21 In contrast,

22By contrast,

23On the contrary,

24 Whether …depends on whether…

25It is wrong to assume that

26When it comes to something,

27 … for the reason that

28 … for the simple reason that

29 For one thing,

30 For another,

31 There is an element of truth in both views.

32 Both views make sense.

33 Some people fail to take into account the fact that

34 In view of the seriousness of this problem,

35 It is indisputable that

36 To make matters worse,

37 To make things worse,

38 On a substantial level,

39 Nothing is more significant than to do something.

40 Nothing is more critical than doing something.

摘自（雅思高分万能作文精讲）