1、look at改否定形式时直接在look前面加Don't，即为: Don't look at....结构
2、look at 强调看的目标，所以改为否定句时，又需要对此进行强调，把否定的强调性放在前面，例如:Don't look at the giraffe.意思是（别看）快看长颈鹿
3、look是动词原形，动词原形开头的句子表示请求或命令语气，为祈使句，祈使句的否定形式就在动词原形前面加Don't即可。
例：Look at the pictures.➡️
Don't look at the pictures.
扩展：look at强调看的目标。
look at例句
1、Make sure you get a good look at their faces.
你一定要仔细看清他们的面孔。
2、Look at the time! We'll be late.
看几点了！我们要迟到了。
3、You can look at the issue from many different angles.
你可以从很多不同的角度看这个问题。
