1.It is well-known to us that……（我们都知道

2.Recently the problem of…… has been brought into focus.（最近……问题引起了关注）

3.With the rapid development of science and

technology，more and more people believe that… （随着科技的迅速发展，越来越多的人认为…

二、表达不同观点

1 People's views on……vary from person to person. Some hold that……However, others believe that… 人们对…的观点因人而异.有些人认为…然其他人却认为

三、表示结尾

2 Taking all these factors into consideration, we naturally/reasonably come to the conclusion that… （把所有的这些因素加以考虑，我们自然可以得出结论…

6.All in all, we cannot live without…but at the same time we must try to find out new ways to cope with the problems that would arise.总之，我们没有… 无法生活但同时我们必须寻求新的解决办法来面对可能出现 的新问题

开头

结尾I would appreciate your considering this matter and getting back to me at your earliest convenience Dear…………..，

I am writing to formally request to…………………

The reason for ………is that………….， so I …………

I would also like to request …………. I am sorry

for any inconvenience I have caused.

Thank you for your attention to these requests. If you have any questions， do not hesitate to contact me at……………. I look forward to a favorable reply.

Yours sincerely

Li Ming