θυμάμαι παλιά όταν έκανα φροντιστήριο μας είχαν δώσει μερικές εκφράσεις για αρχή και για κλείσομο που τις βάζαμε σχεδόν συνέχεια στις περισσότερες εκθέσεις και είχαμε τον πρόλογο και τον επίλογο σχεδόν πάνα έτοιμο!
Καταρχάς μπράβο σου που αποφάσισες να ξανασχοληθείς με τα αγγλικά.

Δεν θα το μετανιώσεις.
Θα γράψω μερικές standard φράσεις και expressions.
Λοιπόν:
1)
To list points: First of all, To begin/start with, Secondly, Thirdly, Finally
2)
To introduce examples: for example, for instance, like, such as, in particular, This is clearly illustrated by, A typical/striking example of (this)
3)
To explain sth: this/which means that, in other words, meaning that, that is to say
4)
Agreeing partially: this is partly true, to a(n) (certain)/(some) extent, in some cases, up to a point, while it cannot be denied that..., while it is true that...
5)
Introducing arguments/viewpoints: One argument in favor of/against... is , It is widely believed/claimed that..., It can/could be argued that..., It is generally believed/maintained that..., Some people/Many people/Experts/Scientists...believe/feel that/claim/maintain that/support the view that/are in favor of/against/opposed to
6)
Giving opinions: In my opinion/view,...
My opinion is that...
I feel/think/believe that...
I am inclined to believe that...
It seems/ appears to me that...
I am (not) convinced that...
As far as I am concerned...
Linking Words/ Phrases
1)
To show addition: in addition (to), moreover, furthermore, apart from, besides, as well as, also, both...and
2)
To express cause: because (of), due to, owing to, since, as, ginen (that)
3)
To show result: thus, therefore, as a result/consequence, for this reason, consequently
4)
To express reality: in fact, it is a fact that, actually, in practice
5)
To emphasize a point: clearly, obviously, it is obvious, needless to say
6)
To show contrast: although, (even) though, while, whereas, despite, in spite of the fact that, on the other hand, however, nevertheless, yet, still + it may be argued/claimed that, others (many people) feel/claim/believe that...
Balanced conclusion/ Conclusions expressing opinion indirectly
In conclusion, On balance, All things considered, Taking everything into account/consideration, To sum up, To conclude, All in all, In the light of this evidence, it seems/appears that..., it may be concluded that...,there is little doubt that..., it is likely/unlikely that, it is clear/obvious/evident that..., the obvious conclusion to be drawn is..., there is no absolute answer to the question of...