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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……。

In a word, the whole society should pay close attention to the problem of ______.Only in this way can ______in the future.

3. 但是，……和……都有它们各自的优势（好处）。例如，……，而……。然而，把这两者相比较，我更倾向于（喜欢）……

But ______and ______have their own advantages. For example, _____, while_____. Comparing this with that, however, I prefer to______.

4. 就我个人而言，我相信……，因此，我坚信美好的未来正等着我们。因为……

Personally, I believe tha t_____. Consequently, I’m confident that a bright future is awaiting us because______.

5. 随着社会的发展，……。因此，迫切需要……。如果每个人都愿为社会贡献自已的一份力量，这个社会将要变得越来越好。

With the development of society, ______.So it"s urgent and necessary to ____.If every member is willing to contribute himself to the society, it will be better and better.

6. 至于我（对我来说，就我而言），我认为……更合理。只有这样，我们才能……

For my part, I think it reasonable to_____. Only in this way can you _____.

7. 对我来说，我认为有必要……。原因如下：第一，……；第二，……；最后……但同样重要的是……

In my opinion, I think it necessary to____. The reasons are as follows. First _____.Second ______. Last but not least,______.

8. 在总体上很难说……是好还是坏，因为它在很大程度上取决于……的形势。然而，就我个人而言，我发现……。

It is difficult to say whether _____is good or not in general as it depends very much on the situation of______. However, from a personal point of view find______.

9. 综上所述，我们可以清楚地得出结论……

From what has been discussed above, we may reasonably arrive at the conclusion that____.

10. 如果我们不采取有效的方法，就可能控制不了这种趋势，就会出现一些意想不到的不良后果，所以，我们应该做的是……

If we can not take useful means, we may not control this trend, and some undesirable result may come out unexpectedly, so what we should do is_____.

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Throughout history man has changed his physical environment in order to improve his way of life. With the tools of technology he has altered many physical features of the earth. He has transformed woodlands and prairies into farms and made lakes and reservoirs out of rivers for irrigation purposes or hydroelectric power. Man has also modified the face of the earth by draining marshes and cutting through mountains to build roads and railways. However, man's changes to the physical environment have not always had beneficial results. Today, pollution of the air and water is an increasing danger to the health of the planet. Each day thousands of tons of gases come out of the exhausts of motor vehicles. Smoke from factories pollutes the air of industrialized areas and the surrounding areas of the countryside. The pollution of water is equally harmful. The whole ecological balance of the sea is being changed and industrial wastes have already made many rivers lifeless.