【正文】 why we must…　　8. to sum up …　　9. as far as…be concerned, I believe that…　　10. It is obvious that…　　11. There is little doubt that…　　12. There is no immediate solution to the problem of …, but …might be helpful　　13. None of the solutions is quite satisfactory. The problem should be examined in a new way.　　14. It is high time that we put considerable emphasis on… 　　15. Taking into account all these factors, we may safely reach the conclustion that… 六、用于論證和說明 　　1. As it is described that…　　2. It has been illustrated that…　　3. It provides a good example of…　　4. We may cite another instance of…　　5. History man provides us with the examples of…　　6. A number of further facts may be added…　　7. The situation is not unique, it is typical of dozens I have heard. 　　8. A recent investigation indicate that…　　9. According to the statistics provided …　　10. According to a latest study, it can be predicted…　　11. There is no sufficient evidence to show that…　　12. All available evidence points to the fact that…　　13. Examples given leads me to conclude that…　　14. It reveals the unquestionable fact that…　　15. The idea may be proved by facts…　　16. All the facts suggest that…　　17. No one can deny the fact that…　　18. We may face the undeniable fact that…　　●表示比較和對(duì)照關(guān)系的句型：　　1) A is to B what/ as C is to D(A之于B猶如C之于D).　　2) Just as..., so...　　3) A and B have sth in mon.　　4) A is similar to B.　　5) The same is true of，The same can be said of(……也是如此).　　6) The advantages of A are much greater than B.　　7) pared with B, A has many advantages.　　8) The advantages outweigh the disadvantages(利大于弊).　　9) Wonderful as A is, however, it has its own disadvantages too.　　10) Although A enjoys considerable advantage over..., it can not pete with B in...　　11) Contrary to widely accepted views, I believe that...　　12) What people fail to consider