一、引出开头

1：It is well-known to us that……==As far as my knowledge is concerned, …

2：Recently the problem of…… has been brought into focus. ==Nowadays there is a growing concern over ……

3：Nowadays(overpopulation)has become a problem we have to face.

4：Internet has been playing an important role in our day-to-day life. It has brought a lot of benefits but has created some serious problems as well.

5：With the rapid development of science and technology，more and more people believe that……

6：It is a common belief that……==It is commonly believed that……

7：A lot of people seem to think that……

8:It is universally acknowledged that +

二、表达不同观点

1：People's views on……vary/differ from person to person. Some hold that……However, others believe that……

2：People may have different opinions on……

3：Attitudes towards (drugs)vary from person to person.==Different people hold different attitudes towards(failure)

4: There are different opinions among people as to……

三、表示结尾

1：In short, it can be said that……

2：From what has been mentioned above, we can come to the conclusion that……

3：Taking all these factors into consideration, we naturally/reasonably come to the conclusion that……

4：Hence/Therefore, we'd better come to the conclusion that……

5:There is no doubt that (job-hopping)has its drawbacks as well as merits.(毫无疑问，跳槽有优点也有缺点)

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.

四、给出建议

1：It is high time that we put an end to the (trend).

2：There is no doubt that enough concern must be paid to the problem of……

3：Obviously ,if we want to do something … it is essential that……

4：Only in this way/by doing… can we ……

5：Spare no effort to + V (不遗余力的)英语六级成绩

五、预示后果

1：Obviously，if we don't control the problem, the chances are that……will lead us in danger.

2：No doubt, unless we take effective measures, it is very likely that ……

3：It is urgent that immediate measures should be taken to stop the situation

六、表示论证

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

2：I cannot entirely agree with the idea that……(我无法完全同意这一观点)

3：As far as I am concerned/In my opinion,……(就我来说……)

4：I sincerely believe that……==I am greatly convinced that…….

5：Finally, to speak frankly, there is also a more practical reason why ……(最后，坦率地说，还有另外一个实际的原因……)

七、给出原因

1：The reason why + 句子 ~~~ is that ……

2: This phenomenon exists for a number of reasons .First,…….Second,…….Third，……。

3：For one thing,…… For another thing，…… ==On the one hand,……On the other hand……

4：I quite agree with the statement that……The reasons are chiefly as follows.我十分赞同这一论述，其主要原因如下。