作文中常用句套：[b]　　下文中出现的 A,B, “...”(某事物), "sb"( somebody), [b]　　要在写作中要根据上下文进行适当替换. 　　开头：[b]　　When it comes to ..., some think ...[b]　　There is a public debate today that ...[b]　　A is a commen way of ..., but is it a wise one?[b]　　Recentaly the problem has been brought into focus.　 　　提出观点：[b]　　Now there is a growing awareness that...[b]　　It is time we explore the truth of ...[b]　　Nowhere in history has the issue been more visible. 　　进一步提出观点：[b]... but that is only part of the history.[b]　　Another equally important aspect is ...[b]　　A is but one of the many effects. Another is ...[b]　　Besides, other reasons are... 　　提出假想例子的方式：[b]　　Suppose that...[b]　　Just imagine what would be like if...[b]　　It is reasonable to expect...[b]　　It is not surprising that... 　　举普通例子：[b]　　For example(instance),...[b]　　... such as A,B,C and so on (so forth)[b]　　A good case in point is...[b]　　A particular example for this is... 　　引用：[b]　　One of the greatest early writers said ...[b]　　"Knowledge is power", such is the remard of ...[b]　　"......". That is how sb comment ( criticize/ praise...).[b]　　"......". How often we hear such words like there. 　　讲故事[b]　　（先说故事主体），this story is not rare.[b]　　..., such delimma we often meet in daily life.[b]　　..., the story still has a realistic significance. 　　提出原因：[b]　　There are many reasons for ...[b]　　Why .... , for one thing,...[b]　　The answer to this problem involves many factors.[b]　　Any discussion about this problem would inevitably involves ...[b]　　The first reason can be obiviously seen.[b]　　Most people would agree that...[b]　　Some people may neglect that in fact ...[b]　　Others suggest that...[b]　　Part of the explanation is ... 　　进行对比：[b]　　The advantages for A for outweigh the disadvantages of...[b]　　Although A enjoys a distinct advantage ...[b]　　Indeed , A carries much weight than B when sth is concerned.[b]　　A maybe ... , but it suffers from the disadvantage that... 　　承上启下：[b]　　To understand the truth of ..., it is also important to see...[b]　　 A study of ... will make this point clear 　　让步：[b]　　Certainly, B has its own advantages, such as...[b]　　I do not deny that A has its own merits.[b][b]　　结尾：[b]　　From what has been discussed above, we may safely draw[b]　　the conclusion that ...[b]　　In summary, it is wiser ...[b]　　In short...