1. Although it is commonly (widely/generally) held (felt/accepted/agreed) that…, it is unlikely to be true that…

　　2. It is true that (True, /To be sure, /Admittedly,)…, but this is not to say (it is unlikely /it doesn’t follow/it doesn’t mean/it won’t be the case) that…

　　3. It would be possible (natural/reasonable) to think (believe/take the view) that…, but it would be absurd (wrong) to claim (argue) that…

　　4. There is absolutely (in fact) no (every) reason for us to believe (accept/resist/reject) that…

　　5. The danger (problem/fact/truth/point) is that…

　　6. I believe that the title statement is valid because (of)…

　　7. I agree with the above statement because I believe that…

　　8. Although I appreciate that…, I cannot agree with the title statement.

　　9. Now it is commonly (widely/generally/increasingly) believed (thought /held/accepted/felt/recognized/acknowledged) that… But I wonder (doubt) whether…

　　10.The increase (change/failure/success) in…mainly (largely/partly) results from (arises from/is because of)…

　　11.There are many (different/several/a number of/a variety of) causes (reasons) for this dramatic (marked/significant) growth (change/decline/increase) in… First, … Second, …Finally,…

　　12.Another reason why I dispute the above statement is that…

　　13.There are numerous reasons why…, and I shall here explore only a few of the most important ones.

　　二、不同文体写作常用套语

　　例：议论文的常用套语

　　As is known to all, it is important to be/do …

　　I think there are at least two reasons for …

　　For one thing,… For another , …

　　Let’s take … for example …

　　From what I have mentioned above we can see that without … we cannot …

　　It is clear that,… plays an important part in …

　　It is because … that …

　　Different people, however , have different opinions on this matter .Some people think that …

　　Others argue that …

　　According to them, all of us should …

　　In their opinion, nobody can … without…

　　Compared with …, … has a lot of advantages over …

　　There is no doubt that …

　　In short (In brief /In a word), I firmly support the view that …

　　So my conclusion is that …