一)比较

　　1.The advantage far outweigh the disadvantages.

　　2.The advantages of A are much greater than those of B.

　　3.A may be preferable to B, but A suffers from the disadvantages that...

　　4.It is reasonable to maintain that ...but it would be foolish to claim that...

　　5.For all the disadvantages, it has its compensating advantages.

　　6.Like anything else, it has its faults.

　　7.A and B has several points in common.

　　8.A bears some resemblances to B.

　　9.However, the same is not applicable to B.

　　10. A and B differ in several ways.

　　11. Evidently, it has both negative and positive effects.

　　12. People used to think ..., but things are different now.

　　13. The same is true of B.

　　14. Wondering as A is ,it has its drawbacks.

　　15. It is true that A ... , but the chief faults are ...

　　二)原因

　　1.A number of factors are accountable for this situation.

　　A number of factors might contribute to the phenomenon.

　　2. The answer to this problem involves many factors.

　　3. The phenomenon mainly stems from the fact that...

　　4. The factors that contribute to this situation include...

　　I quite agree with the statement that the reasons are chiefly as follows.

　　我十分赞同这一论述,即,其主要原因如下。

　　From my point of view, it is more reasonable to support the first opinion rather than the second.

　　在我看来,支持第一种观点比支持第二种观点更有道理.

　　I cannot entirely agree with the idea that

　　我无法完全同意这一观点.

　　This phenomenon exists for a number of reasons. First, Second, Third,

　　这一现象的存在是有许多原因的.首先, 第二, 第三,

　　Why did ? For one thing For another. Perhaps the primary reason is

　　为什么会? 一个原因是 令一个原因是或许其主要原因是.

　　Personally, I am standing on the side of

　　就个人而言, 我站在的一边.

　　I sincerely believe that

　　我真诚地相信

　　In my opinion, it is more advisable to do than to do.

　　在我个人看来,做比做更明智.

　　Obviously, if we dont control the problem, the chances are that will lead us in danger.

　　很明显,如果我们不能控制这一问题,很有可能我们会陷入危险.

　　It is high time that we put an end to the .

　　该是我们停止这一趋势的时候了.