根据语法书介绍：look like 看起来像...,其中like是介词,后接名词或代词；而look as if 看起来好像...,其中as if 是连词,后接从句.
She looks like her mother.
It looks as if it's going to rain.
但在非正式用语中,特别是美语中,经常用like代替as if.如：
It looks as if(like) it's going to rain.
根据语法书介绍：look like 看起来像...,其中like是介词,后接名词或代词；而look as if 看起来好像...,其中as if 是连词,后接从句.
She looks like her mother.
It looks as if it's going to rain.
但在非正式用语中,特别是美语中,经常用like代替as if.如：
It looks as if(like) it's going to rain.