老师好，请问such as , like , for example , for instance , as if 的区别和用法

Question

如题所述

Answer 1

1. such as = like，都视为介词，其后加名词、代词和动名词等，一般列举不完全的多例，且和举例之间直接相连。
如：I have many friends, such as / like Tom, Mary and Jim.
2. for example = for instance，视为独立成分，一般只列举一例，和举例之间用逗号隔开，例子形式多样，可以是单词、短语或句子。
如：I have many friends. For example/instance, Jack is my best friend.
3. as if是连词，引导方式状语从句或表语从句。有时其后的从句可以用省略语法，且有时须用虚拟语气。
如：He spoke as if he knew everything.
It seemed as if it was going to rain.
4. as if的意思是“似乎、好像”，是作比喻；
而最开始的两种单词短语的意思都是“例如，比如”，不是作比喻，而是举例。
两组短语在意思上差别很大。来自：求助得到的回答