1.look at 后加名词前是不是必须加the?2.look like变单三在look后加还是在like后加?3.见下

1. look at 后面的名词必须加the,为了引起注意,起强调的作用,如
Look at the blackboard, please. 请看黑板.
2. look like变成单三后是在look后加s, 因为look是动词,这里的like是介词,像.的意思
3. look like后面一般接名词, look后面接,adj,即形容词,作表语,如
She looks like a bird. 她看起来像一只小鸟一样.
He looked tired. 他看上去很累.
希望能帮到你,祝更上一层楼O(∩_∩)O