Many people insist that...

很多人坚持认为……

With the development of science and technology, more and more people believe that...

随着科技的发展,越来越多的人认为……

A lot of people seem to think that...

很多人似乎认为……

People's views>人们对……的观点因人而异。有些人认为.....然而其他人却认为……

People may have different opinions>人们对……可能会有不同的见解。

Attitudes towards (drugs) vary from person to person.

人们对待吸毒的态度因人而异。

There are different opinions among people as to...

关于……人们的观点大不相同。

Different people hold different attitudes toward (failure).

对（失败）人们的态度各不相同。

Taking all these factors into consideration, we naturally come to the conclusion that...

把所有这些因素加以考虑，我们自然会得出结论……

Taking into account all these factors, we may reasonably come to the conclusion that...

考虑所有这些因素，我们可能会得出合理的结论……

Hence/Therefore, we'd better come to the conclusion that...

因此，我们最好得出这样的结论……

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。

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……是无法生活的。但同时，我们必须寻求新的解决办法来对付可能出现的新问题。

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

该是我们停止这一趋势的时候了。

It is time to take the advice of ... and to put special emphasis  on the improvement of ...该是采纳……的建议，并对……的进展给予特殊重视的时候了。

There is no doubt that enough concern must be paid to the problem of ...

毫无疑问，对……问题应予以足够的重视。

Obviously,.... If we want to do something... , it is essential that...

显然，如果我们想做某事，很重要的是……

Only in this way can we... 

只有这样,我们才能...

It must be realized that... 

我们必须意识到...

Obviously, if we don't 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。

No doubt, unless we take effective measures, it is very likely that...

毫无疑问，除非我们采取有效措施，很可能会……

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

很紧迫的是，应立即采取措施阻止这一事态的发展。

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……

Personally, I am standing>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.

Finally, to speak frankly, there is also a more practical reason why...

坦诚地说，最后，还有一个较为实际的原因……。

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……

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：

Here are some suggestions for handling...　　

这是如何处理某事的一些建议。

The best way to solve the troubles is... 　

解决这些麻烦的最好办法是……

People have figured out many ways to solve this problem.

人们已找出许多办法来解决这个问题。

表示强调的连接词

still, Indeed, apparently, oddly enough, of course, after all, significantly, interestingly, also, above all, surely, certainly, undoubtedly, in any case, anyway, above all, in fact, especially. Obviously, clearly.

表示比较的连接词

like, similarly, likewise, in the same way, in the same manner, equally.

表示对比的连接词

by contrast, on the contrary, while, whereas, on the other hand, unlike, instead, but, conversely, different from, however, nevertheless, otherwise, whereas, unlike, yet, in contrast.

表示列举的连接词

for example, for instance, such as, take ...for example. Except (for), to illustrate.

表示时间的连接词

later, next, then, finally, at last, eventually, meanwhile, from now>

表示顺序的连接词

first, second, third, then, finally, to begin with, first of all, in the first place, last, next, above all, last but not the least, first and most important.

表示可能的连接词

presumably, probably, perhaps.

用于解释的连接词

in other words, in fact, as a matter of fact, that is, namely, in simpler terms.

表示递进的连接词

What is more, in addition, and, besides, also, furthermore, too, moreover, furthermore, as well as, additionally, again.

表示让步的连接词

although, after all, in spite of..., despite, even if, even though, though, admittedly, whatever may happen.

表示转折的连接词

however, rather than, instead of, but, yet, on  theother hand, unfortunately. whereas

表示原因的连接词

for this reason, due to, thanks to, because, because of, as, since, owing to.

表示结果的连接词

as a result, thus, hence, so, therefore, accordingly, consequently, as consequence.

用于总结的连接词

on the whole, in conclusion, in a word, to sum up, in brief, in summary, to conclude, to summarize, in short.