在科技英语当中一般有两种情形使用举例：（1）说明某一定义或事实，（2）证明某一观点或假设。举例的目的是用实例对定义或事实进行进一步地解释说明，或者对观点、假设进行有说服力的证明。

举例时常用表达有：

...is shown in...

...such as/like...

...examples of...are...

...present...by an example

...give（show）an example（of）...

It is common to find...

As is so often the case，...

One of the best examples is...

There is growing evidence of...

The following is an example of...

Typical（Common）examples are...

This point has been strengthened by...

For example，...（，for example，.../—for example...）(www.daowen.com)

For instance，...（，for instance，.../—for instance...）

例1：

What is needed in the case of noise is a study of large numbers of people living under noisy conditions，to discover whether they are mentally ill more often than other people are.The United States Navy，for instance，recently examined a very large number of men working on aircraft carriers:the study was known as Project Anehin.

例2：

But these problems are soluble，given good creative thinking.As is so often the case，one gets into a mental rut believing that because bicycles have been designed in a certain way for a century or more there is no way of doing it.

例3：

However，separate compilation makes some program analysis techniques much more difficult，since they often require that the whole program should be available for analysis—an example of this is strictness analysis.Another example is polymorphic type checking.

例4：

An instrument is a tool which is used in doing something，often of a sensitive nature.Typical examples are a microscope and an ammeter....

举例时要注意：

1.for instance和for example用法一样，但前者比后者举例更加具体。

2.such as一般用于解释某个词，而不是某个观点。若用了such as列举事物，其后切记不能用etc.结尾。

3.e.g.是for example的缩写形式，但不如for example正式，也不如它常用，使用时一般连同例子放在括号内。