Like= 'similar to', 'the same as'. Note that you cannot use as in this way: ·What a beautiful house! It's like a palace. (not 'as a palace') ·'What does Sandra do?' 'She's a teacher, like me.' (not 'as me') ·Be careful! The floor has been polished. It's like walking on ice. (not 'as walking') In these sentences, like is a preposition. So it is followed by a noun (like a palace), a pronoun (like me/ like this) or -ing (like walking) You can also say 'like (somebody/ something) doing something': ·'What's that noise?' 'It sounds like a baby crying.' Sometimes like= 'for example': ·Some sports, like motor racing, can be dangerous. You can also use such as(=for example): ·Some sports, such as motor racing, can be dangerous. We use as (not 'like') before a subject+verb: ·I didn't move anything. I left everything as I found it. ·They did as they promised. (=They did what they promised) Compare like and as in these sentences: ·You should have done it like this. (like+pronoun) ·You should have done it as I showed you. (as+subject+verb) We also say as you know/ as I said/ as she expected/ as I thought etc.: ·As you know, it's Tom's birthday next week. (=you know this already) ·Jane failed her driving test, as she expected. (=she expected this before) Note that we say as usual/ as always: ·You're late as usual. As (preposition)='in the position of', 'in the form of' etc.: ·A few years ago I worked as a bus driver. (not 'like a bus driver') ·We've got a garage but we haven't got a car, so we use the garage as a workshop. ·Many English words (for example, 'work' and 'rain') can be used as verbs or nouns. ·London is all right as a place to visit, but I wouldn't like to live there. ·The news of her death came as a great shock. We say regard...as: ·I regard her as my best friend. http://aprendiendoingles.lacoctelera.net/post/2009/06/02/the-difference-between-as-and-like

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