7. 为什么……?第一个原因是……;第二个原因是……;第三个原因是……。总的来说，……的主要原因是由于……

　　Why______? The first reason is that ______.The second reason is ______.The third is ______.For all this, the main cause of ______due to ______.

　　8. 然而，正如任何事物都有好坏两个方面一样，……也有它的不利的一面，象……。

　　However, just like everything has both its good and bad sides, ______also has its own disadvantages, such as ______.

　　9. 尽管如此，我相信……更有利。

　　Nonetheless, I believe that ______is more advantageous.

　　10. 完全同意……这种观点(陈述)，主要理由如下：

　　I fully agree with the statement that ______ because______.

(三)结尾句

　　1. 至于我，在某种程度上我同意后面的观点，我认为……

　　As far as I am concerned, I agree with the latter opinion to some extent. I think that ____.

　　2. 总而言之，整个社会应该密切关注……这个问题。只有这样，我们才能在将来……。