随着科技的进步…… With the advance of science and technology, …

例：With the rapid development of Taiwan's economy, a lot of social problems have come to pass.

随着台湾经济的快速发展许多社会问题产生了。

5. ……是必要的 It is necessary (for sb.) to do / that …

…… 是重要的 It is important/essential (for sb.) to do / that …

…… 是适当的 It is proper (for sb.) to do / that …

……是紧急的 It is urgent (for sb.) to do / that …

例：It is proper for us to keep the public places clean.

It is proper that we (should) keep the public places clean.

我们应当保持公共场所清洁。

6. 花费 spend … on sth. / doing sth. …

例：我们不应该在我们不感兴趣的事情上花太多的时间。

We shouldn't spend too much time on something we aren't interested in.

7. how 引导的感叹句

例：那至少可以证明你很诚实。

At least it will prove how honest you are.

8. 状语从句