Expressões com a palavra WATCH

This time I have some idioms with the word watch. They are very common and can therefore make a real difference in your speech. To start off, I want you to think of the moments you feel extremely bored. There are some things that make us especially bored depending on our interests. I would say that what bores me to death is to try to memorize new vocabulary. I think every English student can relate to that, but they may not know how to express that feeling in a creative way. If you for instance don't like to watch golf on TV, which is something actually for very few, you could say watching golf on television is as interesting as watching paint dry. So imagine yourself staring at a wall waiting for the paint to dry. Pretty boring huh? That's the idea of this idiom. You know another thing that's pretty boring? watching grass grow. And that's actually another way of referring to boring things. Example: To watch somebody fly-fishing is like watching grass grow.

Moving on to our next idiom, there are sometimes people or situations that demand us to be always alert to avoid bad things happening. If for some reason someone wants to harm you in any way, you should watch your back to see what is metaphorically going on behind you. If your work environment is very competitive and there are always people pulling the rug from under each other's feet, you should also watch your back.

And last but not least, our next idiom is a little more tricky. It is more mentioned towards people that are extremely anxious, like me, or maybe you too. But it can be used with anybody since anxiety is a natural part of a human being. Try to remember the last time you got extremely anxious for waiting something to happen. Maybe you tried to distract yourself by doing other things so the time would pass by unnoticed, but chances are that you kept waiting anxiously without giving it a break for one moment, which turned out to give you the impression of taking way too long. That happens because, as the idiom says, "a watched pot never boils". Take this example: There's no point sitting by the phone waiting for it to ring. A watched pot never boils.

Fonte: http://www.usingenglish.com/reference/idioms/search.php?q=watch