1、现象类
In recent years,the problem of......has become increasingly serious,which has aroused the concern from the whole society+(1~2句)
Several factors can account for this problem/phenomenon .First of all .......Moreover...In addition ...
Consequently,It is important that we take three measure to solve this problem,firstly ...secondly ...thirly...
2、图表类
From this chart ,we can see clearly that ...declined abruptly from ...to ...,While ...increased sharply from ...to ...during the period between ...and ...
Several reasons /factors can account for this phenomenon ,On the one hand ,...On the otherhand ...,in addition ...
Such changes have a significant effect on ...For one thing ...For another ...In a word ,...is beneficial to ...
3、利弊类
Recently it’s been a fashion for ...to do ...Just as every coin has two sides , ding ...has it’s own advantages and disadvantages
It’s main benefits are as follows ,Frstly ...contribute to ...Secondly , it can make for ...Eventually ...
The negative effects ,However ,are obvious to begin with .Owing lack of .../ lacking in ..., the students ...Consequently ...Moreover ...
Personally , it is advisable to look before you leap / As far as i’m concerned ...What’s more ...
4、赞成反对类
Different people have different views on / about ...
Some people support / approve of / are in favour of / agree with this opinion saying ...For one thing ...For another ...(those in favour of this opinion believe / maintain / think that ...) on the another hand ,others insist on not doing .../many people think ...otherwise (those oppose to this opinion argue that ...) in the first place , ...in the second place ...
Taking all these factors into consideration / account , we may safely come to the conclusion that ...Only if / when ...can we ...
