for example, such as, like 的区别?

1．Noise, for example, is a kind of pollution．举例说明, 噪音就是一种污染.

2．China has many big cities, such as Beijing, Shanghai, Shenzhen and so on．＝China has many such big cities as Beijing, Shanghai, Shenzhen and so on．中国有许多大城市, 比如北京、上海、深圳等等.

3．Some warm-blooded animals, like the cat, the dog or the wolf do not need to hiber- nate．有些热血动物, 像猫、狗、狼不需要冬眠.

such as除表示举例外, 还可表示诸如此类, 意思是“像……这样的”, “诸如……之类的”, 相当于后置定语, 此时不宜与for example互换（但可与表示诸如此类意思的like互换）. 如：

Opportunities such as (=like) this did not come every day. 这样的机会不是天天都有的.

Avoid unhealthy foods such as (=like) hamburger and chips. 不要吃汉堡和薯条之类的不健康食品.

另外, such as有时可分开用, 但for example不能分开用. 如：

The disease attacks such animals as cats and dogs. 这种病只侵袭像猫狗一类的动物. (比较：The disease attacks animals such as cats and dogs.)

such as用于举例时, 总是跟在被说明的内容之后, 不能独立成句, 也不能用于句首或句末, 其后也不能用逗号, 但for example可以. 如：

Each situation is different. For example, a man with a rich wife doesn’t have to work. 情况各有不同, 例如, 娶了有钱妻子的男人就不必工作.

You make too many mistakes—lots of spelling mistakes, for example. 你的错误太多——比如, 有好多拼法错误.